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(1)Drilling, Completion and Workover Fluids 2008 Special Supplement to. Published in June 2008. Copyright © 2008 Gulf Publishing Co. All rights reserved. For additional copies, contact Gulf Publishing Company. Telephone: 713-529-4301 Fax: WORLD OIL, Gulf Publishing Co., Attention: Reprint Department, Fax No. 713-520-4433 Mailing Address: Gulf Publishing Co., P.O. Box 2608, Houston, TX 77252 USA.

(2) WORLD OIL’S FLUIDS 2008. Classifications of fluid systems Descriptions of fluid-system classifications, product functions and source companies are listed on these pages. System descriptions and product definitions have been kept as simple as possible and, wherever practical, they reflect general industry practice and terminology consistent with descriptions adopted by the American Petroleum Institute (API) and the International Association of Drilling Contractors (IADC). WATER-BASED SYSTEMS Non-dispersed. These systems include spud muds, natural muds and other lightly treated systems that are generally used for shallow wells or top-hole drilling. Thinners and dispersants are not added to disperse drill solids and clay particles. Dispersed. At greater depths, where higher densities are required, or where hole conditions may be problematic, muds are often dispersed, typically with lignosulfonates, lignites or tannins. These and similar products are effective deflocculants and filtrate reducers. Potassium-containing chemicals are frequently used to provide greater shale inhibition. Specialized chemicals are also added to adjust or maintain specific mud properties. Calcium treated. Divalent cations, such as calcium and magnesium, when added to a freshwater drilling mud, inhibit formation clay and shale swelling. High levels of soluble calcium are used to control sloughing shale and hole enlargement, and to prevent formation damage. Hydrated lime (calcium hydroxide), gypsum (calcium sulfate) and calcium chloride are principal ingredients of calcium systems. Calcium-treated muds resist salt and. On The Cover: Completion fluids technicians are consulting with a client on a rig in the North Sea. Photo courtesy of MI-SWACO.. anhydrite contamination but are susceptible to gelation and solidification at high temperatures. High-performance water-based muds (HPWBM). These are usually reformulated polymer systems containing system-specific products to deliver shale stability, clay and cuttings inhibition, lubricity and high ROP, while minimizing bit balling/accretion and downhole torque problems. Some HPWBM use borehole stabilizing products to reduce pore pressure transmission similar to oil-based muds. Therefore, HPWBM are suitable to use whenever environmental liabilities and associated waste management costs limit the application of OBM/SBM. Low solids. Listings include systems in which the amount (volume) and type of solids are controlled. Total solids should not range higher than about 6% to 10% by volume. Clay solids should be some 3% or less and exhibit a ratio of drilled solids to bentonite of less than 2:1. Low-solids systems typically use polymer additive as a viscosifier or bentonite extender and are non-dispersed. One primary advantage of low-solids systems is that they significantly improve drilling penetration rate. Polymer/PA/PHPA. Muds incorporating generally long-chain, high-molecular-weight polymers are used to either encapsulate drill solids to prevent dispersion and coat shales for inhibition, or for increasing viscosity and reducing fluid loss. Various polymers are available for these purposes, including cellulose, natural gum-based products, and acrylamide. Frequently, inhibiting salts, such as KCl or NaCl, are used to provide greater shale stability in all of these fluids. These systems usually contain a minimum amount of bentonite and may be sensitive to divalent cations, such as calcium and magnesium. Most polymers have temperature limits below 300°F but, under certain conditions, may be used in hotter wells. A special class of water-based muds use partially hydrolyzed polyacrylamide (PHPA) as an additive, either to encap-. sulate drill solids or to extend bentonite clay in a low-solids mud. Saltwater systems. Several mud systems are included in this classification. Saturated salt systems are used to drill salt formations. Lower levels are usually referred to as brackish or seawater systems. Saltwater muds are usually prepared from brackish, seawater or producedwater sources and dry sodium chloride (or other salts, such as potassium chloride used for shale inhibition), are added to achieve desired salinity. Various specialty products, such as attapulgite, carboxymethyl cellulose (CMC), starch and others, are used to increase viscosity for hole-cleaning properties and to reduce fluid loss. OIL-BASED MUD SYSTEMS Oil-based systems are used in various applications, where fluid stability and inhibition are necessary, such as high-temperature wells, deep holes, and where sticking and hole stabilization are problems. They consist of two types of systems: 1. Invert emulsion muds are water-in-oil emulsions, typically with calcium chloride brine as the emulsified phase and oil as the continuous phase. They may contain as much as 50% brine in the liquid phase. Invert emulsion muds are a “relaxed” emulsion, and have lower electrical stabilities and higher fluid-loss values. Concentration of additives and brine content/ salinity are varied to control rheological, filtration and emulsion stability. 2. Oil-based muds are formulated with only oil as the liquid phase and are often used as coring fluids. Although these systems pick up water from the formation, no additional water or brine is added. All oil systems require higher additional gelling agents for viscosity. Specialized oil-based mud additives include: emulsifiers and wetting agents (commonly fatty acids and amine derivatives) for viscosity; high-molecular-weight soaps; surfactants; amine-treated organic materials; organo clays and lime for alkalinity. COMPLETION FLUIDS Solids-free and typically formulatWorld Oil JUNE 2008. F–105.

(3) WORLD OIL’S FLUIDS 2008 Abbreviations of company names ADM – Archer Daniels, Midland, Decatur, IL, USA, http://admworld.com AHC – Advance Hydrocarbon Corp., College Station, TX, USA AMBAR – Ambar Lone Star Fluid Services, Lafayette, LA, USA, www.ambarlonestar.com AVA – Ava Drilling Fluids, S.p.A., Rome, Italy, www.avapsa.it Akzo – Akzo Nobel, Amersfoort, The Netherlands, www.cs.akzonobel.com Alliance – Alliance Drilling Fluids, LLC, Midland, TX, USA, www.alliancedf.com Alpine – Alpine Specialty Chemicals, Houston, TX, USA, www.alpinemud.com Am. Gil. – American Gilsonite Co., Houston, TX, USA, www.americangilsonite.com Anchor – Anchor Drilling Fluids, Tulsa, OK, USA, www.anchorusa.com Aqua-Clear – Aqua-Clear, Inc., Charleston, WV, USA, www.aquaclear-inc.com Aqualon – Aqualon Oil and Gas Technologies, div. of Hercules, Inc., The Woodlands, TX, USA, www.aqualon.com Aquaness – Aquaness Chemical Division, div. of Baker Petrolite, Sugar Land, TX, USA, www.bakerhughes.com/bakerpetrolite BARZAGHI – BARZAGHI srl, Arluno, Italy, www.barzaghi.com BASF – BASF Construction Polymers GmbH (form. Degussa), Trostberg, Germany, www.construction-polymers.com BCI – Boysenblue/Celtec International, Inc., Lafayette, LA, USA, www.boysenblue.com BHDF – Baker Hughes Drilling Fluids, Houston, TX, USA, www.bakerhughes.com BJ – BJ Services Co., Houston, TX, USA, www.bjservices.com Baker Chem – Baker Chemicals, Inc., Houston, TX, USA, www.bcidf.com Baroid – Baroid Fluid Services, div. of Halliburton, Houston, TX, USA, www.halliburton.com Black Earth – Black Earth Humates Ltd., Alberta, Canada, www.blackearth.com Cabot – Cabot Specialty Fluids, The Woodlands, TX, USA, www.cabot-corp.com/cesium Carless – Petrochem Carless Ltd., Romford, UK, www.petrochemcarless.com Cebo – Cebo Holland B.V., Ijmuiden, The Netherlands, www.ceboholland.com Cesco – Cesco Chemicals, Inc., Lafayette, LA, USA, www.cescochem.com Chandler – Chandler Drilling Fluids, Inc., Houston, TX, USA Chemject – Chemject International, Inc., Houston, TX, USA, www.chemject.com ChemSol – ChemSol, LLC, Minnetonka, MN, USA, www.chemsolusa.com Chemstar – Chemstar Products Co., Minneapolis, MN, USA, http://chemstar.com Ciba – Ciba Specialty Fluids, Suffolk, VA, USA, www.cibasc.com Cinicola – Eredi Dott. Settimio Cinicola Bentonite S.A.S., Milano, Italy, www.cinicola.net Clariant – Clariant Corp., Sulzbach, Germany, www.clariant.com Coatex – Coatex SAS, Genay, France, www.coatex.fr Cognis – Cognis Deutschland GmbH & Co. KG, Düsseldorf, Germany, www.cognis.com Condat – Condat S.A., Chasse-sur-Rhône, France, www.condat.fr F–106. JUNE 2008 World Oil. Croda – Croda (form. Uniqema Inc.), New Castle, DE, USA, www.uniqema.com DSC – DSC Incorporated, The Woodlands, TX, USA, www.TORKease.com DX Oilfield – DX Oilfield Products, Inc., Dixie Chemical Co., Houston, TX, USA, www.dxoilfield.com Deep South – Deep South Chemical, Inc., Lafayette, LA, USA, www.deep-south-chemical.com Densimix – Densimix Inc., Houston, TX, USA, www.densimix-eb.com Dow – The Dow Chemical Co., Midland, MI, USA, www.dow.com Drill. Spec. – Drilling Specialties, The Woodlands, TX, USA, www.cpchem.com/drilling.asp Drillchem – Drillchem Drilling Solutions, Lafayette, LA, USA, www.drillchem.com Drillsafe – DrillSafe Janel Int., Ustron, Poland, www.drillsafe.com.pl Drill Tech – Drill Tech Environmental Services, Inc., Schriever, LA, USA Drilpro – Drilpro Fluids Ltd., Houston, TX, USA EMEC – EMEC Calkem UK Ltd., Kent, UK Ecofluids – Ecofluids, Inc., Houston, TX, USA, www.ecofluids.net Elementis – Elementis Specialities, Hightstown, NJ, USA, www.elementis-specialties.com Elkem – Elkem AS, Materials, Kristiansand, Norway, www.wdp.elkem.com Fluids Mgmt – Fluids Management, Houston, TX, USA, http://fluidsmgmt.com Forta – Forta Corporation, Grove City, PA, USA, www.super-sweep.com Frontier – Frontier Research and Chemical Co., Houston, TX, USA, www.frontierchemical.com GEO – Geo Drilling Fluids, Bakersfield, CA, USA, www.geodf.com GPC – Grain Processing Corp., Muscatine, IA, USA, www.grainprocessing.com General – General Supply Co., Bethany, OK, USA Gumpro – Gumpro Chem, Bombay, India, www.gumprochem.com Hychem – Hychem, Inc., Tampa, FL, USA, www.hychem.com Ibex – Ibex Chemicals, Inc., Houston, TX, USA, www.ibexchemicals.com Impact – Impact Fluid Solutions, Houston, TX, USA, www.impact-es.com Integrity – Integrity Industries, Inc., Kingsville, TX, USA, www.integrityindustries.com Kelco – Kelco Oilfield Group, a Huber Company, Houston, TX, USA, www.cpkelco.com Kemira – Kemira Water Solutions, Inc. (form. Cytec), Springfield, MO, USA, www.kemira.com Kem-Tron – Kem-Tron, Inc., Stafford, TX, USA, www.kemtron.com LCM – Lost Circulation Management, LLC., Fulshear, TX, USA, lostcirculationmgmt.com LCS – Lost Circulation Specialists, Magnolia, TX, USA, www.magmafiber.com L-USA – Lamberti USA, Hungerford, TX, USA, www.lambertiusa.com Lamberti – Lamberti S.p.A. Italy, Gallarate, Italy, www.lamberti.com Liquid Csg. – Liquid Casing, Inc., Houston, TX, USA, www.liquidcasing.com Lubrizol – The Lubrizol Corp., Wickliffe, OH, USA, http://corporate.lubrizol.com M-I SWACO – M-I Swaco, Houston, TX, USA, www.miswaco.com. M&D – M&D Industries of Louisiana, Lafayette, LA, USA, www.ultrasealinc.com MASI – Masi Technologies, LLC, Lafayette, LA, USA www.masitech.com Mayco – Mayco-Wellchem, Inc., Houston, TX, USA, http://maycowellchem.com Messina – Messina, Inc., Dallas, TX, USA, www.MessinaChemicals.com Montello – Montello, Inc., Tulsa, OK, USA, www.montelloinc.com NER – NER, L.L.C., Houston, TX, USA, www.piperubber.com Nalco – Nalco Company Energy Chemicals, Sugar Land, TX, USA, www.nalco.com Newpark – Newpark Drilling Fluids, Houston, TX, USA, www.newparkdf.com OLEON – Oleon, Oelegem, Belgium, www.oleon.com Pacer – Pacer Corporation, Custer, SD, USA, www.pacerminerals.com Progress – Progress Chemical Sales Co., Houston, TX, USA Pure Fluids – Pure Fluids (previously World Fluids plc), Norfolk, UK Rapid – Rapid Drilling Fluids, Lafayette, LA, USA, www.rapidenergyservices.com Rig-Chem – Rig-Chem, Houma, LA, USA, www.rigchem.com Roquette – Roquette Frères, Lestrem, France, www.roquette.fr Scomi – Scomi Oiltools, Kuala Lumpur, Malaysia, www.scomioiltools.com.my So. Clay – Southern Clay Products, Gonzales, TX, USA, www.scprod.com Spec Prod – Special Products, div. of Champion Technologies, Houston, TX, USA, www.special-products.com Strata – Strata Control Services, Inc., Crowley, LA, USA, www.stratacontrol.com Sun – Sun Drilling Products, Belle Chasse, LA, USA, www.sundrilling.com Sulfa Treat – Sulfa Treat, business unit of M-I SWACO, Chesterfield, MO, USA, www.sulfatreat.com TBC-Brin – TBC-Brinadd, Houston, TX, USA, www.tbc-brinadd.com TETRA – Tetra Technologies, The Woodlands, TX, USA, www.tetratec.com TXI – TXI Energy Services, Houston, TX, USA, www.txi.com Tolsa – Tolsa, S.A., Madrid, Spain, www.tolsa.com Turbo-Chem – Turbo-Chem International, Inc., Lafayette, LA, USA, www.turbochem.com Venture – Venture Chemicals, Inc., Lafayette, LA, USA, www.venturechemicals.com WEC – Weatherford Engineered Chemistry, Houston, TX, USA, www.weatherford.com Well Flow – Well Flow International, L.L.C., Houston, TX, USA, www.well-flow.com Wolff – Wolff Cellulosics LLC, Walsrode, Germany, www.wolff-cellulosics.com Wyo-Ben – Wyo-Ben Corp., Billings, MT, USA, www.wyoben.com Ziegler – Ziegler Chemical & Mineral, Jerico, NY, USA, http://zieglerchemical.com.

(4) WORLD OIL’S FLUIDS 2008. ed with aqueous salts, these fluids can achieve a wide density range by incorporating the appropriate salt (halides, bromides and formate brine) without using conventional weighting materials. They are usually designed to match specific reservoir criteria, taking into account critical factors like ESD, contamination risks and crystallization temperatures. HPHT SPECIALTY PRODUCTS Specifically designed for high-pressure, high-temperature and hostile environments where conventional drilling. fluids are impractical or uneconomical, they address safety and environmental compliance, lost circulation, decreased penetration rates, acid gases, and determination of downhole pressure, while allowing for more flexible tool and downhole-equipment selection. RESERVOIR DRILL-IN FLUIDS (RDF) These have the properties of a good drilling fluid and a completion fluid. Its primary attribute is the development of a filter cake which effectively prevents. formation damage and is easily removed, with filtrate and filter cake being compatible with the completion process. They are usually composed of biopolymers and bridging materials and are designed to match specific reservoir criteria. SYNTHETIC FLUIDS (SBM) These are designed to mirror oil-based mud performance, without the environmental hazards. Primary synthetic fluids are esters, ethers, poly alpha olefins and isomerized alpha olefins. They can be discharged offshore, and are non-sheening and biodegradable. WELLBORE CLEAN-UP These products are designed to remove mud and mud particles that are attached to the casing or become a part of the filter cake while drilling. They are usually part of aqueous and non-aqueous spacers and cleaners to ensure smooth displacement, optimal contact times and reduced disposal costs.. EWECO. Quietly revolutionizing the mud pump – again. For more than three decades, the name Ellis Williams has been synonymous with superior mud pumps. We pioneered the triplex, and now, we’re revolutionizing mud pumps again. The patented EWECO Quintuplex features five cylinders, instead of the typical three. This new design reduces pressure variance by more than 70 percent compared to an equivalent horsepower triplex, greatly enhancing MWD/LWD decodeability. The Quintuplex extends useful life, reduces footprint and increases ROI. It also greatly reduces piston rod loads, increasing the life of all load components. For more information on this ground-breaking pump, contact your Ellis Williams Engineering representative.. 866.9 4 3 . 9 3 2 6 • w w w. e w eco.com F–108. JUNE 2008 World Oil. AIR, MIST, FOAM AND GAS Four basic operations are included in this specialized category. These include: 1) Dry air drilling, which involves injecting dry air or gas into the wellbore at rates capable of achieving annular velocities that will remove cuttings; 2) Mist drilling, which involves injecting a foaming agent into the air stream that mixes with produced water and coats the cuttings to prevent mud rings, allowing drill solids to be removed; 3) Foam, which uses surfactants and possibly clays or polymers to form a high carrying-capacity foam; and 4) Aerated fluids, which rely on mud with injected air (which reduces hydrostatic head) to remove drilled solids from the wellbore. FUNCTIONS OF ADDITIVES The product function classifications are those generally accepted by the IADC Subcommittee on Drilling Fluids. Some additives have multiple uses, and for those a primary and two secondary function categories are listed. Alkalinity, pH control additives. Products used to control the degree of acidity or alkalinity of a fluid include lime, caustic soda, soda ash and bicarbonate of soda, as well as other common acids and bases. Bactericides. These are to prevent bacterial degradation of natural organic additives, such as starch and xanthan gum..

(5) WORLD OIL’S FLUIDS 2008. Calcium reducers. Soda ash, bicarbonate of soda, caustic soda and certain polyphosphates are used to reduce calcium in seawater, treat cement contamination, and overcome contaminating effects of anhydrite and gypsum, both forms of calcium sulfates. Corrosion inhibitors. pH control, along with an appropriate corrosion inhibitor, is used to control corrosion, neutralize hazardous acid gases and prevent scale. Common corrosion inhibitors are amine- or phosphate-based products, and other specially formulated chemicals. Defoamers. Products are designed to reduce foaming action, particularly in brackish and saturated saltwater muds. Emulsifiers. These products create a heterogeneous mixture (emulsion) of two insoluble liquids. They include fatty acids and amine-based chemicals for oil-based muds and detergents; soaps; organic acids; and water-based surfactants for water-based muds. Products may be anionic (negatively charged), non-ionic (neutral) or cationic (posi-. tively charged) chemicals, depending on the application. Filtrate reducers. Bentonite clays, lignite, CMC (sodium carboxymethylcellulose), polyacrylate and pregelatinized starch all serve to decrease fluid loss, a measure of the tendency of the drilling fluid’s liquid phase to pass through the filter cake into the formation. Flocculants. These are used to increase viscosity for improved hole cleaning, to increase bentonite yield and to clarify or de-water low-solids fluids. Salt (or brine), hydrated lime, gypsum, soda ash, bicarbonate of soda, sodium tetraphosphate and acrylamide-based polymers may be used. They cause colloidal particles in suspension to group into bunches or “flocs,” causing solids to settle out. Foaming agents. Most often, these are chemicals that also act as surfactants (surface active agents) to foam in the presence of water. These foamers permit air or gas drilling through water-bearing formations. Hydrate suppressants. These are usually alcohol-based additives, primarily for use in deepwater/ coldwater/riser environments. Lost circulation materials. The primary function of a lost-circulation additive is to plug the zone of loss back in the formation, away from the borehole face, so that subsequent operations will not result in additional drilling-fluid losses. LCM is found in three forms: fiber, flake and granular/ chemical thickening agents, such as ground nut hulls or water-swellable, non-soluble, crystalline polymers. In the case of Massive Lost Circulation, two or more of these materials and/or more specialized thicken-. F–110. JUNE 2008 World Oil. ing materials may be needed. Lubricants/Pipe-freeing agents. Designed to reduce a drilling fluid’s coefficient of friction, lubricants decrease torque and drag. Various oils, synthetic liquids, graphite, surfactants, glycols and glycerin and other chemicals are used for this purpose. Shale control inhibitors. Sources of soluble calcium and potassium, as well as inorganic salts and organic compounds, provide shale control by reducing shale hydration. These products are used to prevent excessive wellbore enlargement and heaving or caving while drilling water-sensitive shales. Surface active agents. Surfactants, as they are called, reduce interfacial tension between contacting surfaces (water/ oil, water/solid, water/air, etc.). These may be emulsifiers, demulsifiers, wetting agents, flocculants or deflocculants, depending on the surfaces involved. Temperature stability agents. These products increase rheological and filtration stability of drilling fluids exposed to high temperatures and those that continue to perform their intended purpose under these conditions. Various chemicals are used, including acrylic polymers, sulfonated polymers and copolymers, as well as lignite, lignosulfonate and tanninbased additives. Thinners, dispersants. These chemicals modify the relationship between viscosity and percentage of solids in a drilling mud. They may be used, further, to reduce gel strength, increase a fluid’s “pumpability,” etc. Tannins (quebracho), various polyphosphates, lignite and lignosulfonate materials function as thinners, or as dispersants. The principal purpose of a thinner is to function as a deflocculant to reduce attraction (flocculation) of clay particles, which produces high viscosity and gel strengths. Viscosifiers. Bentonite, CMC, attapulgite clays and polymers are used to increase viscosity for better hole cleaning and suspension of solids. Weighting materials. Barite, iron oxides, calcium carbonates and similar products possessing high specific gravity are used to control formation pressures, check formation caving and facilitate pulling dry pipe. WO.

(6) Available from: Systems Ambar Ambar Ambar Anchor Anchor AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid Baroid BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF BHDF Drillchem Drillchem Messina Messina. F–112. Description of material. DFX ECOMUL ECOSYN ANCO-LCP ANCO-MUL AVA FLEXDRILL AVA K142 AVA K157 AVA KLM AVA LAO AVA MMH AVABIODRILL AVABIOSINT AVACAT AVACLAYBLOCK AVACORE AVAFLUID AVAFULFLOW AVAGELTERM AVAGLYCO AVAHISALT AVALIG/K AVAPAK AVAPOLIVIS AVAPOLYOIL AVAPOLYSALT AVAPOLYSIL AVAREX AVASILIX AVATRASFOAM AVOIL ULT AVOIL ULT 50 DYNAPLUG ACCOLADE BARADRIL-MAG BARADRIL-N BARA-PERFLUID BARASILC BAROID 100 BITUMAX BOREMAX CLAY-MATCH COREDRIL-N CRYSTAL-DRIL ENCORE ENVIROMUL EZ-PLUG FLEX-PLUG FUSE-IT GEM HYDRO-GUARD HYDRO-PLUG INNOVERT INTEGRADE INVERMUL K-SAFE MAXDRIL-N MAXSEAL MYCROMUL. Water-based fluids. Water-based fluids. Surfactant blend X Diesel oil based mud Synthetic based mud HPWBM drilling fluid system X Oil base mud system Customized, high performance inhibitive system X Potassium acetate system X Potassium formate system X Inhibitive system based on potassium, lime and AVALTD2000 X Olefins (LAO or IO) based system Mixed metal hydroxide system for large diameter sections X Inhibitive polymer based system X Ester based IE system for environmentally sensitive areas Inhibitive system cationic polymers X Inhibitive system X 100% base oil coring fluid Lignosulfonate system Non-damaging drill-in fluid X Environmentally friendly system for HPHT (up to 230°C) Cloud point glycol system X Inhibitive system for gas hydrate suppression X Potassium based lignosulfonate system Potassium based system X PHPA system X Inhibitive system based on polyols X System for salt saturated sections X Silicate and potassium based system X Environmentally friendly system for HPHT (up to 230°C) Silicate based system X Stiff foam recycling system LT-IE oil based system 50/50 IE for environmentally sensitive areas Cross-linking system for lost circulation Low/no sag tendancy syn. blend invert emulsion fluid RDF containing sized magnesium oxide X RDF containing sized calcium carbonate X Pill for over-balanced perforating Liquid silicate based drlg. fluid X All oil or all synthetic base drlg. fluid Fluid specifically for drilling Heavy Oil producing formations HPWB freshwater drlg. fluid X HPWB low-solids non-dispersed drlg. fluid X All oil or synthetic RDF & coring fluid Clear water drlg. system X Low/no sag tendency syn. invert emulsion fluid Mineral oil based invert emulsion fluid MLCM Acid soluble fiber/particle blend pill MLCM Mud-activated polymer pill MLCM Polymeric sealant Polyglycol enhanced water base drlg. fluid X HPWB deep-water/offshore drlg. fluid X MLCM Blended fiber/particle/polymer pill Low/no sag tendency mineral oil invert emulsion fluid Low/no sag tendency diesel oil invert emulsion fluid Diesel oil based invert emulsion fluid HPWB highly inhibitive, clay-free, seawater based drilling fluid X Mixed metal silicated based RDF MLCM Acid soluble, gelled polymer pill Synthetic or oil-based drlg fluid containing fine grind weighting material N-FLOW RDF containing filter cake breakers X N-SOLATE Low thermal conductivity water-based insulating packer fluid; 275, 400, and 600 types N-SQUEEZE MLCM Acid soluble, cross-linking polymer pill PERFORMADRIL HPWB drlg. fluid X PETROFREE Ester based invert emulsion fluid PETROFREE LE Linear alpha olefin based invert emulsion fluid PETROFREE LV Low vis. ester based invert emulsion fluid PETROFREE SF Internal olefin based invert emulsion fluid PIPE GUARD Gelled invert emulsion fluid for pipe crossings POLYNOX Lime based lignosulfonate drlg. fluid X QUIKDRIL-N Solids-free, modified biopolymer RDF X RISER-VIS Riser-less fluid for deepwater applications SHEARDRIL-N Solids-free, optimized vis. RDF X SOLUDRIL-N RDF containing sized salt X STOP-FRAC MLCM pelletized LCM pill SUPERSATURATED Riser-less fluid supersaturated with salt for deepwater applications RISER-VIS THERMA-DRIL HPHT water based drlg. fluid system X THURO-FORCE OS WBC High density displacement spacer for OBM/SBM THURO-FORCE W WBC High density displacement spacer for WBM X THURO-KLEAN OS WBC Spacer for removing OBM/SBM coating THURO-KLEAN W WBC Spacer for removing WBM coating X THURO-SCRUB OS WBC Blended spacer for removing OBM/SBM coating THURO-SCRUB W WBC Alkaline spacer for removing WBM coating X THURO-SWEEP M WBC High vis. displacement spacer X THURO-THIN OS WBC OBM/SBM thinning & dispersing spacer THURO-THIN W WBC WBM thinning & dispersing spacer X WELLSET Systematic LCM treatment to prevent lost circulation X XP-07 Linear alkane based invert emulsion fluid AQUA-DRILL WBM system based on Cloud Point glycol D99 chemistry for clay inhibition & improved lubriocity BIO-LOSE 90 Specialty formulation, acid-soluble, solids-free RDF system X for fractured carbonate reservoirs CARBO-CORE OBM - 100% Diesel or mineral oil emulsion system CARBO-DRILL Traditional invert emulsion system using diesel or mineral oil CLAY-TROL WBM system using a polyamine to control clay hydration & swelling CLEAR-DRILL Formate-based brine system for density without weighting agents X GEOTEQ Special synthetic GOM compliant emulsion for geochemical analysis MAGMA-DRILL Diesel or mineral oil invert emulsion system for HPHT applications MAGMA-TEQ Low toxicity mineral oil invert emulsion system for HPHT Application MICRO-CURE Cased Hole Remediation MICRO-PRIME High Efficiency Wellbore Cleaning Spacers MICRO-WASH Open Hole Remediation System NEW-DRILL WBM system using PHPA for encapsulation OMNIFLOW DIF Emulsion drill in fluid PERFFLOW Custom mix of biopolymers & CaCO3 for specific reservoir conditions X PERFORMAX HPWBM designed to emulate performance of emulsion muds PYRO-DRILL WBM for HPHT & geothermal wells RHEO-LOGIC Constant Rheology Invert Emulsion SYN-TEQ GOM compliant invert emulsion system using C16C19 IO TERRA-MAX High Performance Water Based Mud for Onshore and Inland Water Applications UNICAL Conventional WBM system run with lignosulfonate as a primary component DRILL-SERGEANT One sack HPWB system X POLY-K PSD Proprietary Inhibitive WBM X KLEEN-DRIL Non-damaging completion fluid system, CF DRILL-N-PAY Non-damaging drill-in fluid package, CF. JUNE 2008 World Oil. X. X. X. Messina Messina Messina Messina M-I SWACO. X X X X. X X. X X X X X. X X X X. X X. X. X X. X X. X. M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO. X X. M-I SWACO M-I SWACO. X X X X. M-I SWACO M-I SWACO M-I SWACO. X X. X X X. X X. X X X X. X X X. X. X. X X X X. X. X. M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO. X X X X X X X X X X X X X. X. X. M-I SWACO M-I SWACO M-I SWACO. X X X. M-I SWACO M-I SWACO M-I SWACO. X X X. Available from: Systems. X X. M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO. X X. X X X X. M-I SWACO X X X X. X. X X X. X. X. X X. X. X X X X X X X X. X X. X. X X. X X X. X. X. X X. X. X. X X. X X. X X X X X X. X X X X. X X X X. X X. X X X X. X X X X. X. X. X. X. X X X X X X X. X X X. X X X X. X X. X X X X X X. X X X X. X X X X. M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO. X X X. M-I SWACO. M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO M-I SWACO Newpark Newpark Newpark Newpark Newpark Newpark Newpark Scomi Scomi Scomi Scomi Scomi Scomi Scomi Scomi Scomi Scomi Scomi Scomi Scomi Scomi Sun Sun Sun Sun WEC WEC WEC WEC WEC. OILMUL KLEEN-MUL POLYTHERM REDI-COAT APHRON ICS. Description of material. Diesel based invert drilling system Low Tox & Synthetic (SBM) invert system Versatile, HT WBM drilling system PHPA system for shale stabilization HP fluid uses “energized microbubbles” for UBD where lost circulation has been problematic BREAKDOWN Enzyme/chelant-base breaker system BREAKFREE Enzyme-base breaker system BREAKLOOSE Oxidizer-base breaker system BREAKOUT Combined internal breaker /external activated breaker system DIPRO High-density, low-solids, divalent brine reservoir RDF for minimal formation damage, easy cleanup DRILPLEX Diverse mixed metal oxide, WB drilling/RDF fluid, ideal as milling fluid, deepwater applications, CT DURATHERM Low-colloid, contaminant-resistant system for high-temperature drilling ECOGREEN Ester-base, biodegradable system for env. sensitive areas ENVIROTHERM Chrome-free, env. advanced system for high-temperature drilling ENVIROVERT Cloride-free OBM with advantages of a conventional invert with lower disposal costs FAZE-AWAY Invert emulsion-base breaker system for FAZEPRO filter cakes FAZEBREAK Chelant-base breaker system for dispersion of residual filtercakes formed by FAZEPRO RDF system FAZECLEAN Acid-base breaker system for FAZEPRO filter cakes FAZE-OUT Delayed water-base breaker system for FAZEPRO filter cakes FAZEPRO Reversible invert emulsion fluid, converts between oil and water wet for filtercake and WBC FLODENSE AP Fluid system for remediation of casing pressure FLOPRO CT Polymer water-base system specifically formulated for coiled tubing operations FLOPRO NT Minimal solids, non-damaging WB fluid for the production zone, especially in horizontal wells FLOPRO SF Solids-free, non-damaging WBF for drill-in, suited for applications such as coiled tubing drilling FLOTHRU Water-base RDF that incorporates organophilic filtercake system GLYDRIL HP env. polyglycol system for snale control, ER deepwater and subsalt drilling ISOTHERM Oil-base insulated packer fluid K-MAG Potassium-base system for drilling troublesome shales MI-T-THIN Sag-stable, low-rheology SBM NOVA-OUT Water-base breaker system for NOVAPRO system NOVAPLUS Low-viscosity, internal-olefin base synthetic fluid for deepwater drilling and environmental regs NOVAPRO Synthetic olefin-base system for RDF, for high-temperature, low-permeability, open-hole reservoirs NOVATEC Ultra-low-viscosity, LAO-base synthetic fluid system suited for deepwater drilling NOVA-WAY Invert emuslion breaker system for NOVAPRO system with greater delay and higher thermal stability PARADRIL Paraffin-base system engineered as an alternative to conventional or mineral oil-base systems PARALAND Paraffin-base drilling fluid designed for optimized land-base disposal of cuttings PARAPRO Paraffin-base reservoir drill-in fluid PARATHERM Paraffin-base high-temperature, anti-sag drilling fluid POLY-PLUS Polymer-base, PHPA system for improved cuttings encapsulation and shale stabilization RHELIANT Flat-rheology synthetic fluid especially suited for deepwater drilling SAFE-LINK 110 Completion fluid pill built with 11.0 lb/gal CaCl2 SAFE-LINK 140 Completion fluid pill built with 14.0 lb/gal CaCl2 SAFETHERM WB or water-miscible packer fluid customized for deepwater and permafrost applications SAGDRIL Tar-sands drilling fluid SEAL-N-PEEL Fluid loss control pill, as contingency for fluid loss control fluid to seal inside production screens SILDRIL Silicate-base system for drilling water-sensitive shales TRUDRIL All oil-base system designed for low-density drilling conditions ULTRADRIL High-performance water-base drilling fluid VERSACLEAN Mineral oil-base system for areas where diesel is prohibited VERSACLEAN MKII Variant of VERSACLEAN system VERSADRIL Diesel oil-base system for wellbore stability, contamination resistance and solids tolerance VERSA-OUT Water-base breaker system for VERSAPRO system VERSAPRO Oil-base RDF for HT, low-permeability open-hole completions VERSAPRO LS Invert emulsion version of VERSAPRO using CaCl2, CaBr2, NaBr, KCOOH, CeCOOH, etc. VERSATHERM Mineral oil-base high-temperature anti-sag drilling fluid VERSAVERT Ultra-low toxicity mineral oil-base driling fluid system VERSA-WAY Invert emulsion breaker system for VERSAPRO system with greater delay and higher thermal stability WARP Mineral oil-base system using WARP technology WARP PB Paraffin-base system using WARP technology WARP SB Synthetic-base system using WARP technology CYBERDRILL Synthetic-based system CYBERPHASE Salt-free synthetic-based system DEEPDRILL HPWB system for drilling shales FLEXDRILL Versatile HPWB system HIPERM DIF Reservoir drill-in fluid OPTIDRILL Invert emulsion system OPTIPHASE Salt-free oil-based system CONFI-DEEP Flat rheology deepwater fluid CONFI-DENSE HTHP invert emulsion CONFI-DRILL NAF invert emulsion EXTRA-VERT Ester based invert emulsion HYDRO-FOIL Potassium/PHPA system HYDRO-FOIL GEN 1 Glycol WBM for shale stability HYDRO-FOIL S8 Silicate HyPR-FOIL S-8 Chloride free silicate WBM HyPR-DRILL HPWB System HYDRO-THERM High temperature WBM OPTA-FLO Polymer and CaCO3 drill-in fluid OPTA-VERT NAF drill-in fluid OPTA-VERT 100 NAF water free system RHEO-PLEX Mixed metal oxide system DRILLCON C Hydratable shale control EZE-SLIDE D Land use liq. lubricant SMART-PLUG LCM pill SUN SWEEP Mech. hole cleaning agent DURAFOAM Non-recyclable foam drilling system HYDROFOAM Recyclable foam drilling system KLEAN-FOAM Recyclable foam drilling system TRANSFOAM Recyclable foam drilling system TRIPLEX Geothermal corrosion control CORROSION SYSTEM. Non-dispersed Dispersed Calcium-treated Polymer Low solids Saturated salt Oil-based Synthetic-based Air, mist, foam, gas. Fluid Systems. Recommended for these systems. Non-dispersed Dispersed Calcium-treated Polymer Low solids Saturated salt Oil-based Synthetic-based Air, mist, foam, gas. World Oil’s. Recommended for these systems. X X X X X. X X. X. X. X. X. X. X X. X X X X. X X X X X. X X X X X X X X X X X X X. X. X X X X X. X. X. X X X X X X X X X X X X X X X X X X. X X. X X X X X X. X X X X X X X X X X X X X X X. X X X X X X X. X. X X X X X X X. X X X X X X X. X X X X X X. X X X X X X. X. X X X X X X X. X X X X X X. X X X X. X X X X X. X X X X. X X X X X X X. X X X. X. X X X X X X. X X X. X X X X X X.

(7) ADM ADM AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AHC AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR AMBAR. OPTIXAN OPTIXAN D AH-Acid Sticks AH-DeFoamer AH-Det AH-Hydrogen sulfide AH-Paraffin inhibitor AH-Salt inhibitor AH-Scale inhibitor C-II DR-1000 Gumbo Inhibitor HEC HEC- Sticks LUBE-1000 OMR-1000 Packer Fluid-283 PHPA PHPA- Sticks Rig Wash SAPP- Sticks AH-COPOLYMER AH-DRILL BIT STICKS AH-FOAM STICKS AH-CORROSION INHIB. AMBAR AMCARB AMCIDE AMCLS AMCOR AMDMD AMFLUSH AMGEL AMGEL NT AMLIG AMOXBAN 02 AMPAC, LV AMPAC, R AMPLUG AMSEAGEL AMSEAL AMTROL AMVERT PE AMVERT SE AMVERT WA AMVIS CHEMSPERSE CHEMTEMP CHEMTHIN D CHEMTHIN L CHEMTONE X CHEMVIS D CHEMVIS L CHEMVIS L PLUS CHEM-X II COLD FLOW DE-2000 DL-100 ECO-GEL H ECO-GEL M ECO-MUL FLR ECO-MUL PE ECO-MUL SE ECO-MUL SYNTHETIC ECO-MUL WA ECO-PHALT ECO-SORB ECO-SPERSE ECO-SPOT ECO-THIN ECO-VIS S K-TROL pH BAN STAR LG STAR PLUG STAR PLUG SHUT-OFF. AMBAR AMBAR AMBAR AMBAR AVA AVA AVA. STAR SQUEEZE STARTROL SURE SEAL TRIPLE A AVA AS-1 AVA EXTRADRILL AVA FASTDRILL. AVA AVA AVA AVA AVA AVA AVA AVA. AVA K142 AVA LST-MD AVA MB-HS38 AVABENTOIL ECT AVABENTOIL HY AVABENTOIL RM AVABENTOIL SA AVABEX. Xanthan gum bioploymer Xanthan gum bioploymer Acid sticks Defoamer Drilling mud detergent Hydrogen sulfide sticks Paraffin inhibitor sticks Salt inhibitor sticks Salt inhibitor sticks Fluid loss agent Glycol LU Clay swelling suppressant Liq. HEC Dry-HEC Glycol base LU Glycol base oil mud replacement Completion fluid Liq. PHPA Dry PHPA Surfactant base Sodium polyphosphate CO-POLYMER SOAP STICKS FOAM STICKS CORROSION INHIBITOR Barite meeting API specs Acid soluble calcium carbonate, sized Bactericide Chrome lignosulfonate Corrosion inhibitor Drilling mud detergent Casing wash, surfactant Bentonite Bentonite, non treated Lignite Oxygen scavenger Polyanionic cellulose, low vis. Polyanionic cellulose Ground walnut shells, various grades Attapulgite,saltwater gel Elongated cellulose fiber Liq. HEC Primary E for diesel muds Secondary E for diesel muds Wetting agent for diesel muds Dry HEC Tannin based TH Sulfonated high temp. polymeric TH Dry SPA TH Liq. SPA TH HTHP fluid loss reducer & shale stabilizer Dry PHPA 30% Liq. PHPA 50% Liq. PHPA Xanthan gum Low shear rate modifier Synthetic based ROP enhancer Drilling LU Hectorite clay Montmorillonite clay Fluid loss reducer for synthetic muds Primary E for synthetic muds Secondary E for synthetic muds Olefin based synthetic muds Wetting agent for synthetic muds Asphalt for oil mud Oil absorbant granules Oil dispersant Environ. safe spotting fluid Sythetic mud TH Low end rheology modifier for synthetics Potassium-based inhibitor pH reducer Gilsonite suspension in synthetic oil HMW crosslink polymer lost circulation pill LMW crosslink polymer, profile modification HMW crosslink polymer, DE LCM pill HTHP fluid loss reducer & shale stabilizer Loss circulation material Anti-accretion product Scale inhibitor Organic compounds for shale inhibition Blend of organic/inorganic compounds for shale inhibition Potassium acetate brine Liquid sulfonate asphalt Microbubbles of borosilicate glass Organophilic hectorite High yield organophilic bentonite High yield organophilic bentonite Low yield suspending agent Bentonite extender. A B CA CF CO D. = Alkalinity (pH control) = Bactericides = Calcium removers = Completion fluid = Corrosion inhibitors = Defoamers. E FR FL FO HPHT HPWB. X X X X X X X X X X X X. X X. X X X X X X X X X X X X X X. CO CA FR LU SH LU FR HPHT SH HPHT V FR V FR LU HS X HPWB X X X X X X CO X X X X SH V LU X X X X SH V LU X X X X SU X X X TH CA A X X X X X X SH FR X X X X X X SH E SU X FO CO CF X X X X X X X X W X X X X X X X X LO W X X X X X X B X X X X TH FL CO X X X X X SU SU X X X X X X V FL X X X X X X V FL X X X X X FL TH X X X X X X CO LU X X X X X X FL SH X X X X X X FL SH X X X X X X X X LO FR X X X X V X X X X X X X X LO FL X X X X X X V X E X E SU X SU E X X X X X X V X X X X X X TH FI X X X X X TH TE X X X X TH SH X X X X TH SH X X X X X X X SH LU X X X X X SH V X X X X X SH V X X X X X SH V X X X X X X V X X X X X X X V X X X X X X LU SH X X X X X X LU X X V FL X X V FL X X FL E X X E X X E SU X X SB X X E SU X X FI SH X X X X X X X X E X X X X X X P LU X TH X X V X X X X X X SH A X X X X X X A X X X X X X SH FL X X X X X X X X LO X X X X X X X X LO. X X X X X. X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X. = Emulsifiers = Filtration reducers = Flocculants = Foaming agents = High pressure/high temperature = High performance, water-based. X X X X X. LO FL LO SH CA SH SH. SH FR. FR FR. SH W CF SH FR W RDF V FR HPHT V FR HPHT V FR V FR V. AVA. AVABIOBENT. AVA. AVABIOCARB. AVA AVA AVA. AVABIOFIL AVABIOFIL HT AVABIOIL. AVA AVA. AVABIOLUBE AVABIOMOD. AVA. AVABIOPRI. AVA. AVABIOSEC. AVA AVA. AVABIOTHIN AVABIOVIS. AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA. AVABIOWET AVABUFFER AVACARB ME AVACELL LQD AVACID 50 AVACID F/25 AVACLAYBLOCK AVACLAYBLOCK ACT AVADEG 327 AVADES 100 AVADETER AVAENION AVAFLUID G71 AVAFLUID NP AVAFOAM S1 AVAFOAM S2 AVAFREE 2 AVAFULFLOW. AVA. AVAFULFLOW/UB. AVA AVA AVA AVA AVA AVA AVA AVA AVA. AVAGEL HY AVAGEL PLUS AVAGILS AVAGLYCO AVAGLYCO II AVAGRAPH AVAGRAPH SEAL AVAGREENLUBE AVAGREENLUBE SIL. AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA. AVAGUM AVAK157 AVALIG AVALIG C AVALIG K AVALIG NE AVALTD 2000 AVAPERM AVAPOLY A AVAPOLY HT AVAPOLYMER 5050 AVAPOLYOIL AVAPOLYPAK LV AVAPOLYPAK RG AVAPOLYSIL. AVA AVA. AVAPOLYTEMP AVAREX. AVA AVA AVA AVA AVA AVA. AVASHALESTOP AVASHALESTOP ACT AVASIL AVASILIX 22 AVASILIX 39 AVASINTOIL. AVA. AVASINTOIL FC. AVA AVA AVA AVA. AVASINTOIL PE AVASINTOIL SE AVASINTOIL TN AVASINTOIL VS. AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA. AVASINTOIL WA AVASTAT 350 AVATENSIO AVATENSIO LT AVATEX AVATHIN AVATRASFOAM AVAVIS-MMH AVAWASH 500 AVAWASH OBM AVAWASH OBM/LT. AVA AVA. AVAWASH WBM AVAZR 5000. HS = Hydrate suppressant LO = Lost circulation additives LU = Lubricants MLCM = Massive lost circulation material P = Pipe-freeing agents RDF = Drill-in fluid. SB SH SU TE TH V. Description of material Low yield suspending agent for AVALAO system Organic compounds & potassium carbonate Lignite polymer for fluid loss control Synthetic polymer for fluid loss control AVALAO linear and polyalphaolefines based oil Natural polymer shale stabilizer Rheology modifier for AVALAO system. X X X X X X X X X X X X X X X X X X X X. X. X X X X X X X X X X X. X X X X X X X X X X X X X. X X X X X. X X X X X X X X X X X X X X X. X X X X X X X X X X X X X. FR. FR FR SB. E E. SU HPHT. SH. LU E. FR SU. X X. V E. FR. SU. X X. E. FR. TE. X X X X. TH V. FR FR. TE. X X. SU A W V B B SH SH SU CO SU E TH TH FO FO P V. LU E SU FR HPHT FR HPHT E E SH FR RDF FR. X X X X X. X X X X X. X X. X X X. X X X X X X X X X X X X X X X X X X X. X X X X X X X X X. X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X. V. X X. V HPWB V HPWB SH FR LU SH LU HS SH LU HS LU LO LO LU LU SH FR LU FR. X X X X X X X. X X X X X X X X X X X X X X X X X. X X X X X X X X. X X X X X X X X X X X X X X X. X. X X X X X X X X X X X X. X X X. TE FR FR FR. X. SH SH D SH SH SB. X. FR. X X X X. E E TH V. X. X X X X. X X X X X. X X X X X. X X X X X X X X X X X X X X X X X X. RDF. V W SH CF TH FR HPHT TH FR HPHT TH FR HPHT W SH HPHT TH FR CA SH FL FR HPHT SH FR SH LU HPWB V SH FR FR SH SH FR LU FR TE. X. X X X X X X. FR FR. X. X X X X X X X X X X X X X X X X X X X X. X X X X X. E LO CF. X X X X X X X X X. X X X X X X X X X X. X X X X. FR. SH. X X. AVALAO primary emulsifier for low oil cutting retentions AVALAO secondary emulsifier for low oil cutting retentions Thinner for AVALAO system High yield suspending agent for AVALAO system Wetting agent for AVALAO system Alkaline buffer Metamorphic calcium carbonate Liquid hydroxyl ethyl cellulose Liquid biocide Liquid biocide Organic compound for shale inhibition Inorganic compounds for shale inhibition Multifunctional surfactant Hydrogen sulphide scavenger Mud detergent Non ionic emulsifier Modified Fe-Cr lignosulfonate Chrome-free lignosulfonate Foamer for AVATRASFOAM system Salt resistant foaming agent No oil free pipe & cake removal agent Blend of polymers & sized calcium carbonate Polymers, sized calcium carbonate & glass microspheres High yield bentonite Wyoming bentonite Water dispersible gilsonite Glycol-based lubricity aid High cloud point glycol Natural graphite Natural graphite Ester-based vegetable LU Ester-based LU for silicate & potassium mud Modified guar gum Potassium formate brine Modified chrome lignite Modified causticised lignite Modified potassium lignite Humalite Dispersant for lime muds and KLM system Amine-based shale stabilizer Polymer compound Polymer compound Powdered shale inhibitor Shale stabilizer Potassium PAC regular Potassium PAC low vis Organic compound & potassium salts shale inhibitor Pure grade filtrate reducer for Avafulflow Modified polymer for extreme high temperature Organic compound for shale inhibition Inorganic compounds for shale inhibition Silicone-based defoamer Base product for AVASILIX system Base product for AVASILIX system AVASINTOIL system ester based biodegradable oil Fluid loss control agent for AVASINTOIL system AVASINTOIL system primary emulsifier AVASINTOIL system secondary emulsifier Thinner for AVASINTOIL system High yield suspending agent for AVASINTOIL system Wetting agent for AVASINTOIL system Antistatic agent for section milling Free-pipe agent Low tox. pipe-freeing agent Sodium sulfonate asphalt Acrylic acid graphed lignosulfonate Foamer for AVATRASFOAM system Polymer for MMH system Cake removal agent Casing cleaner for oil based mud Casing cleaner for low toxicity oil based mud Casing cleaner for water based mud Chrome-free HPHT thinner. = Synthetic-based = Shale-control agents = Surface-active agents = Temperature stability agents = Thinners, dispersants = Viscosifiers. V X. Secondary. Available Product from: Tradename. Non-dispersed Dispersed Calcium-treated Polymer Low solids Saturated salt Oil-based Synthetic-based Air, mist, foam, gas. Secondary. Secondary. V V A D SU CO. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X. Product Function. Water-based fluids. Primary. Description of material. Non-dispersed Dispersed Calcium-treated Polymer Low solids Saturated salt Oil-based Synthetic-based Air, mist, foam, gas. Water-based fluids. Fluids ’08 Available Product from: Tradename. Recommended for these systems. Secondary. World Oil’s. Product Function. Primary. Recommended for these systems. FR FR FR FR. SH SH. TE TE TE. SU E SU X P X P SH FR HPHT TH HPHT FR X FO WBC SH V SU SU SU SU TH HPHT FR. W = Weighting materials WBC = Wellbore cleanout WBM = Water based mud. World Oil JUNE 2008. F–115.

(8) AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA. AVOIL FC AVOIL FR/HT AVOIL PE AVOIL PE/LT AVOIL SE AVOIL SE/LT AVOIL TN AVOIL TN/LT AVOIL VS AVOIL VS/LT AVOIL WA AVOIL WA/LT DE BLOCK S/LT DE BLOCK S/WB DEOXI SS DEOXY DEHA DOLSAL DOLSAL B DYNA RETARDER DYNAPLUG ECOL LUBE ECOL LUBE HT ECOL LUBE SIL GRANULAR F/M/C INCORR INCORR 2275 INCORR AC INCORR AC/HT INCORR HT INCORR OS INTAFLOW INTASOL C4000 INTASOL F/M/C INTASOL FLAKE F/M/C INTASOL ME F/M/C POLICELL RG POLICELL SL POLIFLUID POLIVIS POLIVIS PWD SAND SEAL F/C. AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA. STEARALL LQD TCS 30 VICTOSAL VICTOSAL MMH VISCO 83 VISCO 83 EHV VISCO 83 LQD VISCO 83 SL VISCO 83 XLV VISCO ACT VISCO DIF VISCO EXHV3000 VISCO X VISCO XC VISCO XC84 VISCO XCD AVA BRIDGEPAK C/M. AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA AVA Akzo. AVA PHPAGUNK AVA QUICKDRILL AVA X-PRIMA AVA DEFOAM AVA-FS AVAGLYCO HC AVAGLYCO LC AVAPOLY PGL AVATRACER ECOLUBE LG VICTOMOD VISCO WEL VISCOMED VISCOPLUS GABROIL HV. Akzo Akzo. GABROIL LV GABROIL PAC HIVIS. Akzo. GABROIL PAC LOVIS. Akzo Akzo Akzo Akzo Akzo Alliance Alliance Alliance. GABROSA EHV Tech GABROSA HV Tech GABROSA LV Tech STAFLO EXLO STAFLO REGULAR ALL ANTIFOAM ALL CASE ALL CMS. A B CA CF CO D. Lignite based fluid loss reducer Asphalt based fluid loss reducer Primary emulsifier Primary emulsifier Secondary emulsifier Secondary emulsifier OBM thinner Low toxicity OBM thinner Rheology modifier Rheology modifier Wetting agent Wetting agent Low toxicity weighted mud-free P Water-based P Oxygen remover Oxygen remover Sepiolite clay Attapulgite clay Retarder for Dynaplug Fibers, polymers & cross-linker Biodegradable LU LU for geothermal wells LU for silicate & potassium mud LCM based on vegetable shell, F,M,C Water dispersible CO Amine-free CO & scale inhibitor CO in acid environment CO in HT acid environment Water dispersible HT CO Oil soluble CO Acid soluble marble flour Specially ground calcium carbonate Specially ground calcium carbonate, F,M,C Specially sized flake calcium carbonate Metamorphic calcium carbonate, F,M,C Technical grade PAC regular Technical grade PAC low vis Synthetic chrome-free TH Modified liquid PHPA Encapsulated polymer (powder) Sealing agent for pay zone LO, fine, coarse D compound for dispersed muds Non ionic drilling mud surfactant Modified resistant starch Modified resistant starch for MMH system Pure PAC regular Pure PAC extreme high vis Liquid polyanionic polymer Pure PAC super low Pure PAC extreme low Biopolymer Blend of biopolymer for DIF Extreme high V for spud mud Biopolymer Biopolymer Pure xanthan gum polymer Pure disperable xanthan gum polymer Blend of granular and fibrous bridging agents PHPA powder Blend of natural compounds Lost circulation squeeze Alcohol based defoamer Bituminus / bentonite fluid loss additive High cloud point glycol Low cloud point glycol Polyglycerol Potassium iodide tracer Non-toxic lubricant High temperature modified starch High temperature low-end viscosifier Medium viscosity pure PAC Low viscosity pure PAC Polyanionic cellulose, tech grade, high visc. Polyanionic cellulose, tech grade, low visc. Polyanionic cellulose (PAC), tech grade, high viscous, DS > 1 Polyanionic cellulose (PAC), tech grade, low viscous, DS > 1 Carboxymethyl cellulose (API 13A) Carboxymethyl cellulose (non-API) Carboxymethyl cellulose (API 13A) Polyanionic cellulose (PAC), pure grade Polyanionic cellulose (PAC), pure grade Anti-foamer Sized LCM Modified polymer. = Alkalinity (pH control) = Bactericides = Calcium removers = Completion fluid = Corrosion inhibitors = Defoamers. F–116. JUNE 2008 World Oil. E FR FL FO HPHT HPWB. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X. X X X X X X X X X X X X. X X X X X X. X X X X X. X X X X X X X X X X X X X X X X X X X. X X X X X. X X X X X X X X X X X X X. X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X. FR FR E E E E TH TH V V SU SU P P CO CO V V LO LO LU LU LU LO CO CO CO CO CO CO LO LO LO LO LO V FR TH SH SH LO D SU FR FR V V V FR FR V V V V V V V MLCM MLCM SH MLCM D FR SH SH SH. CF CF. WBC TE WBC TE FR FR TE FR CF CA CF CF CF HPHT HPHT CF RDF RDF RDF RDF RDF FR SH SH TE FR V HPHT V HPHT FR. LU. TE. SH FR SH FR SH FR SH SH SH SH RDF FR RDF SH SH SH SH SH. SH. SH LU LU HS. HS HS LU. V SH V. SH. X X X X X X X X X X X X. FR FR. SH V. LU SH. X X X X X X. FR. SH. LU. X X X X X X X X. FR FR FR FR FR D LO FR. V V SH SH V. SH SH LU LU SH. X X X X X. X X X X X X X X. X X X X X X X X. X X X X X X X X X X X X. = Emulsifiers = Filtration reducers = Flocculants = Foaming agents = High pressure/high temperature = High performance, water-based. SH. LU. SH. Alliance Alliance Alliance Alliande Alliance Alliance Alliance Alliance Alliance Alliance Alliance Alliance Alliance Alliance Alliance Alliance Alpine Alpine Alpine Alpine Alpine Alpine Alpine Alpine Alpine Alpine Am. Gil.. ALL CMS ALL DEFOAM ALL DRILL FW ALL DRILL P ALL FA HIB 30 ALL FLOC ALL FOAM 475B ALL IDB 60 ALL LIQUA THIN ALL LUBE ALL PAC ALL POLY LUBE ALL SEAL ALL SHALE HIB ALL SURFAK S ALL TROL BLACK FURY CELL-U-SEAL CLEAN SPOT DRILL BEADS FORM-A-SET FORM-A-SQUEEZE PA-10 QUICK SLIDE SACK BLACK TRACER BEADS BOREPLATE. Am. Gil. Am. Gil.. GILSONITE SUPER HT. Am. Gil.. SUPER ULTRA HT. Am. Gil.. ULTRA HT. Anchor Anchor Anchor Anchor Anchor Anchor. ANCO 2000 I ANCO BAR ANCO BX ANCO CARB ANCO CI-300A ANCO COAT WS. Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor. ANCO DD ANCO DEFOAM A ANCO DEFOAM S ANCO DF-150 ANCO DF-450 ANCO DMS ANCO DRILL A ANCO DRILL N. Anchor Anchor Anchor Anchor Anchor Anchor Anchor. ANCO FIBER ANCO GEL ANCO GEL HT ANCO GEL PREMIUM ANCO K 59 ANCO LIG ANCO LW 200. Anchor. ANCO MICRO-BLEND. Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor Anchor. ANCO MUL FA ANCO MUL FG ANCO MUL OW ANCO MUL P ANCO MUL S ANCO MUL T ANCO MUL VIS ANCO MUL VIS HT ANCO MUL VIS P ANCO PAC LV ANCO PAC R ANCO PHALT ANCO PHALT S ANCO PHPA ANCO PINE FIBER ANCO PIPE FREE ANCO QWIK LUBE ANCO ROPE ANCO SACK SPOT ANCO SALT GEL ANCO SCAV 100 ANCO SORB ANCO SPERSE ANCO SPERSE CF ANCO STARCH W ANCO THIN HTL ANCO THIN L ANCO TORKBUSTER ANCO WASH ANCO WT-10 ANCO ZAN FOAM TREAT. Aqua-Clear. AIRFOAM AP-50. HS = Hydrate suppressant LO = Lost circulation additives LU = Lubricants MLCM = Massive lost circulation material P = Pipe-freeing agents RDF = Drill-in fluid. SB SH SU TE TH V. Description of material Modified polymer Defoamer Polymer viscosifier Polymer viscosifier Corrision inhibitor Cationic flocculant Brine foamer Biocide Low MW polymer thinner Water soluble ester Polyanionic cellulose Mineral oil Cellulose particles Shale inhibitor Surfactant Water dispensible gilsonite Liquid dispersed gilsonite Cellulose fiber Env. safe spotting fluid Co-polymer plastic beads Cross link polymer squeeze pill High fluid loss squeeze pill Lubricant-ROP enhancer Lubricant bead suspension Coupled gilsonite Macro-pourous translucent beads Water dispersible, envr. safe shale-control agent, Microtox passed Natural, envr. safe filtration control agent Natural, envr. safe, extremely HT (+500ºF) filtratration control agent Natural, envr. safe, extremely HT (+550ºF) filtratration control agent Natural, envr. safe HT (+450ºF) filtratration control agent Polyglycol inhibitor blend Barite Bentonite extender Sized calcium carbonate Alkyl phosphate with scale inhibitor Water-soluble filming amine corrosion inhibitor Drilling detergent Alcohol-base defoamer Silicone-base defoamer Foaming agent-fresh water Foaming agent-fresh water or brine Drilling-mud surfactant Liquid PHPA shale stabilizer/viscosifier Low viscosity PHPA shale stabilizer/ viscosifier Fibrous cellulose bridging material API-grade bentonite Sepiolite clay Wyoming bentonite (untreated) Potassium acetate Lignite Polymer surfactant blend for mud weight reduction Blend of micronized fibers bridging material Asphaltic filtration control agent Gilsonite fluid loss control agent Oil wetting agent/emulsifier Primary emulsifier Secondary emulsifier/oil wetter Thinner/degellant Organophilic bentonite clay Organophilic hectorite clay Sulfonated polystyrene Pure PAC, low viscosity Pure PAC, regular grade Asphaltic stabilizer Sulfonated residuum shale stabilizer Dry PHPA shale stabilizer/viscosifier Sized wood fiber Emulsifier blend pipe-freeing agent Polyglycol blended lubricant Rate of penetration enhancer Oil-base spotting fluid concentrate Attapulgite clay Stabilized liq. oxygen scavenger Polymeric lost circulation material Chrome lignosulfonate Chrome-free lignosulfonate Pre-gelatinized white starch Liq. high temp. stable, polymeric thinner Liquid polymeric thinner Liquid surfactant blended lubricant Surfactant blend for rig cleaning Bactericide Xanthan gum polymer Surface-active shale stabilizer for air, mist & foam Freshwater, mild saltwater FO. = Synthetic-based = Shale-control agents = Surface-active agents = Temperature stability agents = Thinners, dispersants = Viscosifiers. X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X. Secondary. Available Product from: Tradename. Secondary. Secondary. Secondary. E SU SU HPHT FR SU FR SU FR TE FR TE FR TE FR TE E SU E SU E E. LU FR V FR FR FR. X X X X X X X X. Product Function. Water-based fluids. Primary. Description of material. Non-dispersed Dispersed Calcium-treated Polymer Low solids Saturated salt Oil-based Synthetic-based Air, mist, foam, gas. Water-based fluids. Fluids ’08 Available Product from: Tradename. Recommended for these systems. Primary. World Oil’s. Product Function. Non-dispersed Dispersed Calcium-treated Polymer Low solids Saturated salt Oil-based Synthetic-based Air, mist, foam, gas. Recommended for these systems. FR D V RDF WBC V CO FL FO B TH LU CO V FR LU LO FR SH SU FR SH SU LU SH HS SH HPHT HPWB LO P LU LU MLCM MLCM LO LU SH WBM LU HPHT WBM SH HPHT TE WBM SH FR LU. X X X X X X X X X X X X X X X X. FR FR. SH SH. LU LU. X X X X X X X X. FR. SH. LU. X X X X X X X X. FR. SH. LU. SH W V W CO CO. FR. LU. FL LO. FR. X X X X X X. X X X X X X X X X X X X X X X. X. X. X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X. X. X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X. X X X X X X. X. X X X X X. X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X. FO. LO V V V SH TH FO. FR FR TE FR TE FR. TE V. LO. FR SH LU SU. X X. FR FR E E E TH V V V FR FR SH SH SH LO P LU SU P V CO LO TH TH FR TH TH LU SU B V SH. X. FO. X X X. X X X. X X X X X X X X X X X X X. X X X X X X X X X X X X X. X X X X X X X X X. X X X X X X X. X X X X X. X X X X X. X X X X X. X X X X X. X X X X X X X X X X X X X X. SU D D FO FO SU SH SH. W = Weighting materials WBC = Wellbore cleanout WBM = Water based mud. FL. FR. LU TE. FR. SH V LU LU V. SH TE TE LU. FR FR FR FR SH. FR FO. TE. SU.

(9) AIRFOAM B AIRFOAM HD AQUACEL R-110 AQUACEL R-190 AQUAFLO HV AQUAFLO LV AQUALON AQU D-4146. Aqualon. AQUALON SODIUM FORMATE AQUAPAC REGULAR AQUAPAC LV AQUAPAC ULV. Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aqualon Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness. A B CA CF CO D. Saltwater FO Oil FO Low visc. carboxymethyl cellulose High visc. carboxymethyl cellulose High visc. standard polyanionic cellulose Low visc. standard polyanionic cellulose High visc. DISPERSIBLE polyanionic cellulose Formate brine. High visc. premium polyanionic cellulose Low visc. premium polyanionic cellulose Ultra-low visc. premium polyanionic cellulose AQUAPAC LIQUID Eco-friendly anhydrous suspension AQUAPAC polyanionic cellulose EcoDura FLA 3962 PLONOR aqueous suspension of Natrosol 250 LR EcoDura FLA 3963 PLONOR aqueous suspension of Natrosol 180 GXR EcoDura FLA 4053 PLONOR aqueous suspension of Natrosol 250 JR EcoDura TA 3964 PLONOR aqueous suspension of Natrosol HI-VIS EcoDura TA 4226 PLONOR aqueous suspension of Natrosol 210 HHX EcoDura TA 4282 PLONOR aqueous suspension of Natrosol HI-VIS EcoDura TA 4283 PLONOR aqueous suspension of Natrosol 210 HHX GALACTASOL 251 High visc. straight guar GALACTASOL 252 Straight guar GALACTASOL 267 Diesel slurriable guar GALACTASOL 271 Self-hydrating dispersible straight guar GALACTASOL 283 Fast hydrating high visc. guar GALACTASOL 284 Diesel slurriable Fast hydrating high visc. guar GALACTASOL 467 Diesel slurriable hydroxypropyl guar GALACTASOL 474 High visc. hydroxypropyl guar GALACTASOL 476 Buffered high visc. hydroxypropyl guar GALACTASOL 477 Self hydrating dispersible hydroxypropyl guar GALACTASOL 638 Fast hydrating high visc. Carboxymethyl hydroxypropyl guar GALACTASOL 650 Carboxymethyl hydroxypropyl guar GALACTASOL 651 Carboxymethyl hydroxypropyl guar GALACTASOL 653 Diesel slurriable carboxymethyl guar KLUCEL H OIL Suspension agent for solvent-based systems NATROSOL 180 GXR Low visc. hydroxyethyl cellulose NATROSOL 210 HHX Ultra high visc. and fast hydrating hydroxyethyl cellulose NATROSOL 250 JR Low visc. hydroxyethyl cellulose NATROSOL 250 LR Low visc. hydroxyethyl cellulose NATROSOL 250 EXR Low visc. hydroxyethyl cellulose NATROSOL 250 GXR Low visc. hydroxyethyl cellulose NATROSOL 250 HHR-P Ultra high visc. hydroxyethyl cellulose NATROSOL HI-VIS Ultra high visc. hydroxyethyl cellulose NATROSOL LIQUID HHR-P Eco-friendly anhydrous suspension of Natrosol 250 HHR-P NATROSOL LIQUID HHX Eco-friendly anhydrous suspension of Natrosol 210 HHX NATROSOL LIQUID HI-VIS Eco-friendly anhydrous suspension of Natrosol HI-VIS NATROSOL LIQUID Eco-friendly anhydrous suspension of 180 GXR Natrosol 180 GXR XxtraDura FLA 3766 Liquid universal fluid loss additive anionic synthetic co-polymer XxtraDura FLA 3767 Dry universal fluid loss additive - anionic synthetic co-polymer XxtraDura GMA 4176 Liquid synthetic gas migration control additive XxtraDura GMA 4176P Dry synthetic gas migration control additive AQUAMUL 854 Emuslifier and wetting agent AQUET 943 Amphoteric foaming agent AQUET TD-500K Anionic foaming agent ARDRIL CLA-BAN Cationic polyamine shale stabilizer CRO80671 Filming amine CO CRW-132 Packer fluid CO CRW80669 Corrosion inhibitor DFW80521 Defoamer DRILLAID 100 Defoamer DRILLAID 101 Lubricant for WBM DRILLIAD 103 Spotting fluid additive DRILLAID104 Spotting fluid additive DRILLAID 105 Lubricant for WBM DRILLAID 106 Brine lubricant DRILLAID 108 Drilling fluid detergent DRILLAID 201 Completion brine non-emulsifier DRILLAID 2903 High temperature emulsifier DRILLAID 600 Rheology modifier DRILLAID 701 Concentrated dispersant DRILLAID 702 Dispersant DRILLAID 704 Solids wetting agent DRILLAID 705 Solids wetting agent DRILLAID 863 Supplemental emulsifier. = Alkalinity (pH control) = Bactericides = Calcium removers = Completion fluid = Corrosion inhibitors = Defoamers. E FR FL FO HPHT HPWB. X X X X X. X X X X X. X X X X X. X X X X X X X. X X X X. FO FO FR FR FR FR FR. SH V V SH V. CF. RDF SH. X X. X X X. FR FR FR. X X. LU SH SH LU SH. V SH SH. SH LU LU. V. SH. X. X. X. FR. X X. X. X. FR. RDF SH. X X. X. X. FR. RDF SH. X X. X. X. FR. RDF SH. X X. X. X. V. FR. CF. X X. X. X. V. FR. CF. X X. X. X. V. FR. CF. X X. X. X. V. FR. CF. X X X X X X. X X X X X X. X X X X X X. X X X X X X. V V V V V V. FR FR FR FR FR FR. WBM WBM WBM WBM WBM WBM. X X X X X X. X X X X. X X X X. X X X X. V V V V. FR WBM FR CF FR CF FR CF. X X X X X X. Available Product from: Tradename Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness Aquaness BARZAGHI BARZAGHI BARZAGHI BARZAGHI BARZAGHI BARZAGHI BARZAGHI BARZAGHI BASF BASF BASF BASF BASF BASF BASF BASF BASF BCI BCI. DRILLIAD 866 DRILLAID 900 DRILLAID DME DRILLAID DMS KD-40 KD-740 MAGNACIDE 575 OSW80490 ARLOX HS700 ARLOX HS82112E SCW83263 X-CIDE 102 X-CIDE 102W X-CIDE 207 GELOGUM CM55 GELOGUM PAC LV GELOGUM PAC ULV GELOGUM LVT GELOGUM HVT BIOGUM P CARBOGUM CXK CARBOGUM XK BIOVIS POLYDRILL POLYTHIN POLYVIS II DC 150 BASODRILL 2000 BASOPUR DF5 PIBSA STYROFAN BLEN-CARB BLEN-FYBER. BCI BCI. BLEN-NO FOAM BLEN-PLEX. BCI BCI. BLEN-PLUG BLEN-SEAL BLEN-SQUEEZE BORESEAL FRAC-PAK HYDRASWELL. X. X. V. FR. SH. BCI BCI. X X X X X X X. X X X. V V V V. FR FR FR. SH SH SH. BCI BCI. X X. FR V. RDF SH CF SH. X X. X X X X X X X X X X X. X X X X X X X. X X. X. X X. X X X. X X X X X X X. FR FR FR FR V V V. RDF RDF RDF RDF CF CF CF. SH SH SH SH SH SH LU. X. X. V. CF. LU. X. X. V. CF. X X. X. X. FR. X X X X. X. X. FR HPHT SH. X X X X. X. X. RDF. LU LU. FR HPHT SH. X X X X. X. X. FR HPHT SH. X X X X. X. X. FR HPHT SH. X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X. X X X X X X X X X X X X. X X X X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. = Emulsifiers = Filtration reducers = Flocculants = Foaming agents = High pressure/high temperature = High performance, water-based. E FO FO SH CO CO CO D D LU P P LU LU SU SU E V TH TH TH TH E. FR. SU. FL. CF. BCI. MEGA-SLIDE. BCI. SPUD-SEAL. BCI. SUPER-SLIDE "F". BCI. SUPER-SLIDE "M". BCI BHDF. WALL-GUARD ALL-TEMP. BHDF BHDF BHDF BHDF. ALPHA-TEQ AMI-TEC AMPLI-FOAM AQUA-COL. BHDF. AQUA-COL B. BHDF. AQUA-COL D. BHDF. AQUA-COL S. BHDF BHDF BHDF BHDF BHDF. AQUA-MAGIC AQUA-SEAL BIO-COTE BIO-DRILL BIO-LOSE. BHDF BHDF BHDF. BIO-PAQ BLACK MAGIC BLACK-MAGIC CLEAN. BHDF. BLACK MAGIC LT. BHDF. BLACK MAGIC PHALT FREE BLACK MAGIC SFT BRINE-PAC BRINE-PAC 1500 BRINE-PAC 3N1 BRINE-PAC XT BRINE-STIM NE CALTROL. CF BHDF BHDF BHDF BHDF BHDF BHDF BHDF. CF CF CF FR. FR. TE. TE. BHDF. CARBO-GEL 100. BHDF BHDF BHDF BHDF. CARBO-GEL II CARBO-GEL CARBO-MUL CARBO-MUL HT. HS = Hydrate suppressant LO = Lost circulation additives LU = Lubricants MLCM = Massive lost circulation material P = Pipe-freeing agents RDF = Drill-in fluid. SB SH SU TE TH V. Non-dispersed Dispersed Calcium-treated Polymer Low solids Saturated salt Oil-based Synthetic-based Air, mist, foam, gas. Secondary. Secondary. Primary. Water-based fluids. X X X X X X X X X X X. X X X X X X. Product Function. Description of material Supplemental emulsifier Fluid loss control additive Drilling mud emulsifier Drilling mud surfactant Corrosion inhibitor Corrosion inhibitor Biocide Oxygen scavenger Hydrogen sulphide scavenger Hydrogen sulphide scavenger Completion brine scale inhibitor Aldehyde-based biocide Winterized aldehyde-based biocide Solid biocide Powdered shale inhibitor Polyanionic cellulose (PAC), pure grade Polyanionic cellulose (PAC), pure grade Carboxymethyl cellulose (API 13A) Carboxymethyl cellulose (API 13A) Dispersible guar product Xanthan gum based polymer Xanthan gum Temp. stable biopolymer High temp. stable fluid loss polymer High temp. deflocculant, TH Inorganic drilling fluid V Attapulgite Shale Inhibitor Defoamer Emulsifier Latex polymer Calcium carbonate High-strength micronized cellulose fiber to prevent/cure seepage loss Defoamer Multivalent ion, polymer crosslinking agent Mixed coarse cellulose fibers Preabsorbed, high-strength micronized cellulose fibers with low-tox. lubr. Cellulose LCM w/crosslinkable polymer Mineral fiber blended with pore blocking material High-solids, high fluid-loss LCM After spotted, material swells to seal fractures & voids Glass beads specifically for use in slide & horizontal drilling (14–20 mesh) Selected size cellulose fibers blended with non-damaging water soluble polymers Spherical glass beads (170–325 mesh) to reduce torque & drag Spherical glass beads (20–40 mesh) to reduce torque & drag Water soluble additives Deflocculant/stabilizer for HPHT applications LAO emulsion system Amine-base oil-soluble inhibitor FO for mist & stiff foam drilling Cloud-point glycol for shale control in fresh & low-salinity systems Cloud-point glycol for shale control in medium-salinity systems Cloud-point glycol for shale control in high-salinity systems Cloud-point glycol for shale control in saturated salt systems Oil-free differential sticking preventative Polymeric shale stabilizer & FR Wetting agent ROP enhancer Modified polysaccharide that resists bacterial degradation High performance organic derivative FR Premium spotting fluid, pre-mixed Premium spotting fluid, pre-mixed in environmentally acceptible base oil Premium spotting fluid, pre-mixed in lowtoxicity mineral oil Premium spotting fluid, non-asphaltic Premium spotting fluid, sack concentrate Corrosion inhibitor Corrosion inhibitor for solids-free fluids 3 in 1 corrosion inhibitor Corrosion Inhibitor Emulsion-preventing surfactant FR in high salt (NaCl) and CaCl2 fluid systems Organoclay viscosifier for 100% oil-base systems Organoclay viscosifier Premium organoclay viscosifier Emulsifier & wetting agent High temp. emulsifier & wetting agent. = Synthetic-based = Shale-control agents = Surface-active agents = Temperature stability agents = Thinners, dispersants = Viscosifiers. X X X X X X X X X X X X. X X X X X X X X. X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X X. X X X X X X X X X X X X X X X X X X X X X. X X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X X X X X. X. X. X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X. X. X X X X X X X X X X X X X X X X X X X X X X X X X. E FR E SU CO CO B CO CO CO CO B B B SH FR FR FR FR V V V FR TH V V SH D SU FR LO LO. FR E SU SH. TE TE LU LU. CF CF CF. FR SH SH SH SH. LU LU LU LU. TE TE TE. FR SH FR. LU. P P. D LO. A. LO LO. P. X. LO LU. X X X X X X X X X X X X X X X X. LO LO. X X X X X X X X. LU. X X X X X X. LO. X. Secondary. Aqua-Clear Aqua-Clear Aqualon Aqualon Aqualon Aqualon Aqualon. Description of material. Non-dispersed Dispersed Calcium-treated Polymer Low solids Saturated salt Oil-based Synthetic-based Air, mist, foam, gas. Water-based fluids. Fluids ’08 Available Product from: Tradename. Recommended for these systems. Secondary. World Oil’s. Product Function. Primary. Recommended for these systems. X X X X X X X. LU. X X X X X X X. LU. X X X X X X X X X X X. LU TH. V. V. FR FR. SH TE. FR. X X X X X X X X X X. CO FO SH. LU. X X X X X. SH. FR. X X X X X. SH. LU. FR. X. X X X. SH. LU. FR. X X X X X X X X X X X X X. FR FR TH. X X X X X X X X X X X. LU SH SU LU FR. X X X X X X X X X X X X X X X X X X X X. FR P P. V. X X X X X X X. P. X X X X X X X. P. X X X X X X X X X X X X X X X X. P CO CF CO CF CO CF CO SU RDF FR. X X. X X X X X X X X X X. V. X X X X X X. V V E E. V. FR SU SU. HPHT. CF. TE. W = Weighting materials WBC = Wellbore cleanout WBM = Water based mud. World Oil JUNE 2008. F–117.

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