2011Global Drilling Services (2)

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Contacts

Section 1 Drill Pipe Care and Handling

Section 2 Inspection Services

Section 3 Coating Services

Section 4 Hardbanding Services

Section 5 Machine Services

Section 6 Specialty Inspection Services

Section 7

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Bill Hicks

VP Global Drilling Services 2835 Holmes Rd.

Houston, TX 77051 Phone: 713-799-4905 [email protected]

Coating Technical Support

Robert Lauer

Director Corrosion Control Solutions

2835 Holmes Rd. Houston, TX 77051 Phone: 713-799-4571 [email protected]

Ryan Christopher

Coating Technical Support

Mike Adams

Coating Technical Sales

Inspection Technical Support

Hilton Prejean

Director, Inspection Technical Sales

John Doris

Inspection Technical Sales

2835 Holmes Rd. Houston, TX 77051 Phone: 713-799-8198 John.Doris@nov,com

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Mark Juckett

Hardbanding Product Line Manager

Matt Smith

Global Drilling/Machining Services

US Central Region

Larry Larson

Regional Sales Manager 10222 Sheldon Rd. Houston, TX 77049 Phone: 713-456-6106 [email protected]

Rick Jackson

Regional Sales Manager

1515 Poydras Suite 1850 New Orleans, LA 70112 Phone: 504-636-3672 [email protected]

US Southeast Region

Rocky Mountains

Gary Fritz

14112 W. Hwy 80 E Odessa, TX 79765 Phone: 432-563-2150 [email protected]

Les Massoletti

Area Sales Manager

410 17th_{Street Suite 1350} Denver, CO 80202 Phone: 303-572-7766 [email protected]

US West Region

California

Jeff Hockersmith

Area Sales Manager

3003 Fairhaven Suite C Bakersfield, CA 93308 Phone: 661-325-8529

[email protected]

Bill King

Area Sales Manager 3216 Aluma Valley Dr. Oklahoma City, OK 73121 Phone: 405-478-3400 [email protected]

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Southeast Asia/Australia

Middle East

Russia

Canada

Ken Skuba

1600, 540 – 5Ave., S.W. Calgary AB T2P 0M2 Canada Phone: 403-303-346 [email protected] Dave Wood

Badentoy Avenue, Badentoy Park Portlethen, Aberdeen, AB12 4YB United Kingdom

Phone: 713-799-4917 [email protected]

Southeast Asia/Australia

Joe Haberer

Regional Sales Manager 39 Gul Avenue Singapore, Singapore 629679 Singapore Phone: (65) 6861 2688 [email protected] Harry Hill

JI.Ampera Raya 9-10 Cilandak Jakarta Jawa

Indonesia

Phone: 713-799-5130 [email protected]

Central and South America

Brian Van Burkleo

Global Drilling Services

2835 Holmes Rd. Houston, TX 77051 Phone: 713-799-4900 [email protected] Jack Dyer Regional VP Operations

PO Box 61490, R/A # 13, Plot MO 0682B S50601 Jebel Ali Free Phone: +971-4-811-0210

[email protected]

Vladimir Tikhomirov

General Manager

15A Leninsky Prospect 7th_Floor Moscow, Russia 119071

Phone: +7 495 287 2636

[email protected]

Frank Epperlein

Director Coating Operations Beisenstrasse 32

Gladbeck 45964 Germany

Phone: +49 (5141) 8020 [email protected]

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Shane Prudhomme

Country Manager

Floor 10-12, Building #10, Lvzhou Center, Lane 162 Putuo, Shanghai Shi 200333 China

Phone: +86 21 2216 8800 ext 6100 [email protected]

Specialty Inspection Services

Chris Watson

SIS GOM Division Manager

Brian Van Burkleo

SIS Product Line Specialist

2835 Holmes Rd. Houston, TX 77051 Phone: (65) 6264 3400 [email protected] Michael Slorach Director of Operations 161 Pioneer Rd Singapore, Singapore 639604 Singapore Phone: 713-799-4900 [email protected] Carl Smith Vice President

c/0 c/o P.I.C.O., 24 Wadi el Nil Street Maadi

Cairo, Al Qahirah Phone: +2 010 225 9008 [email protected]

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NOV Tuboscope Drilling Services 2011 www.tuboscope.com 1-713 799-5100 [email protected]

Why You Need a Care and Handling Management

Program?

DRILL PIPE IS YOUR SINGLE LARGEST INVESTMENT -

TAKE CARE OF IT!

INCREASE THE RETURN ON YOUR INVESTMENT

REDUCE COSTLY FAILURES WHILE INCREASING SAFTEY

CONSERVE CAPITAL

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Thread Protectors

Plastic Thread Protectors

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Plastic protectors stay on the connection

o

Plastic protectors will cushion impact and protect the sealing shoulder

Leave on protectors until making up the connection

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Plastic protectors eliminate the problem of galvanic corrosion

*We recommend not using metal protectors as they can increase the potential for corrosion and thread galling

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Proper Storage of Drill Pipe

Improper Storage

Proper Storage

*Proper storage of drill pipe is extremely important; not to prevent damage to the drill pipe, but also from a safety standpoint. Drill pipe should be layered with at least three runners allowing enough room for a forklift blade to be inserted without damaging the pipe. Sturdy racks are to be used to secure the drill pipe.

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Proper Transportation

Load and Secure Drill Pipe Correctly for Transportation

Make sure spacer boards are aligned to distribute weight properly

When securing drill pipe use straps near the spacer boards to keep drill pipe

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Proper Lifting of Drill Pipe

Never use hooks in the end of the pipe for movement

Use straps/slings spaced properly to avoid excessive bending

Use spreader bar

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Initial Make-Up Procedures

Proper initial make-up is probably the most important factor affecting the life

of the tool joint connections

Check torque gauge and make sure it is working properly

Clean and dry each connection

Dope threads and sealing shoulders with a good quality, clean, tool joint

thread compound

Stab connection and make-up SLOWLY

Connection make-up is typically to 80% of the manufacturers torque

Breakout and spin out SLOWLY

Wipe off connections and inspect threads and shoulders for damage

Re-dope threads and sealing shoulders

Stab connection and make-up SLOWLY

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Clean and Visual of Tool Joint Threads and Shoulder

Use solvent to thoroughly clean threads and wipe dry with a clean rag

Inspect carefully for burrs or nicks on the shoulder or threads – Damaged

connections should never be run in the hole

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Tool Joint Compound

Be sure to use the correct compound

Never under any circumstances

use casing and tubing lubricant

Always Make Sure to Keep

Contaminants Out!

Use a round stiff bristle brush to apply compound to tool joint threads and

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Proper vs. Improper Stabbing

Proper Stabbing

Improper Stabbing/Pin Damage

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Proper Make and Break

Always monitor your rotary speed

and torque

Keep in mind that when making up

your drill string that over torque could

be just as detrimental as under torque

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Preventing Corrosion and Stress Risers

Keep Your Slips and Tongs Maintained

Stop the movement of the drill pipe and then carefully set the slips. Improper use

of slips can cause slip cuts on the drill pipe O.D. which creates stress risers.

Slips are Not Brakes!

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Preventing Corrosion and Stress Risers

Always rinse O.D. and I.D. of Drill Pipe with Water

Use wipers to remove fluid and

Contaminants from O.D. of pipe

Wash out I.D. to remove corrosive

Drilling fluids

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Inspection

Used Drill Pipe Inspection Techniques

Electromagnetic Inspection

Evaluation of tube body for imperfections

Defects – ID/OD tube body fatigue cracking

Defects – ID/OD tube body corrosion pitting

Defects – Tube body wall thickness changes

Ultrasonic End Area Inspection

Shear Wave

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Detection of fatigue cracks in upset runout

Compression Wave

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Detection of corrosion pitting in upset runout

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Detection of wall reduction in upset runout

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Internal Plastic Coatings

Drill Pipe Coatings TK-34, TK-34XT, and TK-34P

Corrosion Protection and Evaluations

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Extended Life

Hydraulic Improvement

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Increase Flow

Mitigate Deposits

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Hardbanding Services

Hardbanding Evaluation,

Identification,

and Field Applications

TCS – 8000

TCS – Ti

TCS – Non Mag

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Machine Services

Thread Repair and Refacing

Manufacturing

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Specialty Inspection Services

Rig Components

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NDT Testing

Derrick/Mast Inspection

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API 4G Cat III & IV

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Bolt Torque

Critical Load Path Inspection

Lifting Gear Inspection

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Pad Eyes

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Slings

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Lifting Subs

Rope Access

DROPS Survey

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Surveillance Services

Conduct Quality Audits and/or Monitor Project Activities

Services Include:

Mill Surveillance

Review of Vendor Personnel Qualification Records

Monitoring Material In-Process

Witness of Factory Acceptance Tests, Run Tests, Load Tests, Hydrostatic

Tests

Verification of Product Traceability

Document Review of Materials

Final Verification of Finished Products

Verification of Packaging and Marking

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Remember You Can Help Increase Safety and Protect

Assets by………

Transporting and Storing Pipe Properly (Racking with

Protectors)

Cleaning and Lubricating (Thread Compound)

Making Up the Drill Stem to Correct Torque

Cleaning Pipe by Rinsing with Water

Keeping Your Pipe Inspected

Checking the Drill Pipe Coating and Hardbanding

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Drill Pipe Care and Handling

Transportation and Storage of the Drill String

When storing or loading pipe for transportation; load the pipe with pins

facing same direction and spacer stripping lined up vertically and use chocks to

secure the load from rolling.

If pipe is being transported; snugly secure the load with straps lined up with

the spacer stripping to prevent bowing of the drill pipe.

When lifting drill pipe use a sling and spreader bar to support the pipe in two

places. Never use hooks or metal rods. These can damage the ID of the drill pipe

and the internal coating.

Be sure of That Tool Joint Thread Compound

Always use a tool joint thread compound. Never use API modified.

Keep Contaminates Out of Tool Joint Compound

Keep the lid on the container when not in use. Contaminates have a

detrimental effect on compound performance. Gritty contaminates can

damage/gall threads.

Use Dope on Your Connections

Thread compound prevents corrosion pitting in the threads. This will save

money by not having to re-cut tool joint threads. Thread compound is less

expensive compared to re-cutting threads.

Proper Dope Application

Be sure to work the thread compound brush completely around the threads

on the box and pin. Ensure 360 degree coverage before making up the joint.

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Drill Pipe Care and Handling Cont…

Proper Dope Application – Tool Joint Shoulders

Be sure to apply thread compound on the sealing shoulders on both the box

and pin.

Improper dope application can result in serious thread and sealing shoulder

damage that require costly repairs.

Thread Protectors

Always keep thread protectors on drill pipe tool joint connections. This will

prevent impact damage as well as keep thread compound on the threads. We

recommend the heavy-duty plastic thread protectors:

1. They will stay on the drill pipe connections unlike steel and flimsy

plastic.

2. They cushion impact on the connections unlike steel and flimsy plastic.

3. They prevent galvanic corrosion unlike steel protectors.

Thread Protectors – Leave on When Picking Up and Laying Down Drill Pipe

Do not remove thread protector until ready to stab into the lower joint.

Replace the thread protector before the drill pipe is lowered back down through the

V-door. Drill pipe threads and sealing shoulders could be damaged as the drill

pipe is raised or lowered through the V-door.

As a rule, leave thread protectors on the drill pipe at all times when it is not

in the hole.

Please Use Drill Pipe Jacks or Other Handling Systems

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Drill Pipe Care and Handling Cont…

Proper Stabbing is Critical

Improper stabbing can result in severe damage to sealing shoulders and

threads. This can result in costly washouts in the connections.

Replace Worn Drill Pipe Wipers

Drill Pipe Wipers perform a valuable service by cleaning corrosive drilling

fluids from the OD surface of drill pipe. OD corrosion pitting is a stress riser and

many cracks originate in the bottom of a corrosion pit. Cracks result in washouts

and twist-offs. Change the wipers when they show wear.

Rinse Drill Pipe OD and ID

When possible, rinse the OD and ID of drill pipe to remove corrosive

drilling fluids. The potential for OD corrosion increases when drill pipe is on racks

with drilling fluids still caked on the OD.

Drill Pipe Rubbers

If drill pipe rubbers are being used, be sure to move them to different spots

on the drill pipe. If left in one place, corrosive drilling fluids are trapped resulting

in extensive OD pitting.

Slip Maintenance

Keep a continuous surveillance on the condition of the slip dies. If a die is

worn, replace all of the dies, not just the worn die. If only the worn die is replaced,

it could cause bi-axial loading on the drill pipe resulting in slip damage.

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Drill Pipe Care and Handling Cont…

Check the Hardband Condition

Continuously check the condition of the hardbanding on the tool joints.

When the hardbanding is worn flush with the tool joint, it is time to rehardband the

tool joint. Hardbanding is much less expensive than tool joint build-up.

Check Condition of the Shoulder Faces and Bevels

The shoulders are the seals of drill pipe. Damaged shoulder faces will not

seal resulting in washouts.

Check Straightness of Drill Pipe

Crooked drill pipe will result in rapid tube body and tool joint wear. The

easy way to check straightness is to roll the joint of drill pipe slowly on the rack. It

will wobble if not straight.

Check Condition of Internal Coating

Internal coating can extend the life of drill pipe. However, coating will wear

out over time. When coating no longer protects the ID surface of the drill pipe, the

pipe is a candidate for re-coating.

Never Use Steel Rods or Hooks to Move Drill Pipe

Slip Damage

Slip damage is a series of transverse notches in the drill pipe. These notches

are stress risers that result in cracks. Cracks cause washouts and twist-offs.

Do Not Use Chains

Do Not Use Spinners

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Drill Pipe Care and Handling Cont…

Use Brass vs. Steel Hammer

We do not recommend hammering on drill pipe however if checking fluid

levels in drill pipe is necessary, use a brass hammer. Steel hammers make

indentions, which are stress risers. This can result in washouts and twist-offs.

Tong Die Maintenance

Tong Die condition should be continuously monitored for the same reasons

as slip dies.

Positioning of Tongs

Always use tongs and back-up tongs. The tongs should always be placed on

the tool joint and not the tube body. The rotary table is not a tong.

Monitor Rotary Speed and Torque

Proper rotary speed and torque can prevent costly failures. For example,

under-torque frequently results in washouts in the connection. Over-torque can

result in transverse cracks in the threads due to increased stress. Improper rotary

speed increases stress on drill pipe.

Racking of Drill Pipe

Drill pipe should never be stacked improperly. It is a safety issue as well as a

damage issue. Drill pipe should be stacked on either racks or sills with wood

boards separating each layer. For range 2 drill pipe, there should be three boards

with one in the center and the other two halfway down toward each end. Good

chocks should be used to secure the drill pipe.

Never pyramid stack drill pipe

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Drill Pipe Care and Handling Tips - Tubebodies

Problem Usual Effect Probable Cause Possible Correction

WASHOUT: Usually occurs near pin end upset taper or in area from lower part of slip area to box end upset taper.

Hole in pipe, drop in mud pressure, string separation, lost time

Surface notching, cyclic stressing, fatigue cracking

Minimize surface notching, reduce stress level, avoid critical rotary speed. Move bottom hole pipe up hole on trips, taper transition zone, use shock subs, use heavy weight drill pipe between drill pipe and drill collars.

TWIST OFF: Usually occurs near pin end upset taper or in area from lower part of slip area to box end upset taper

String separation, fishing job, lost time

Surface notching, cyclic stressing, fatigue cracking

Minimize surface notching, reduce stress level, avoid critical rotary speed. Move bottom hole pipe up hole on trips, taper transition zone, use shock subs, use heavy weight drill pipe between drill pipe and drill collars.

FATIGUE CRACKING: Predominately found near pin end upset taper and in area from box end upset taper to lower part of slip area.

Wash out, twist off, string separation, lost time, pipe loss

Cyclic stressing, surface notches (corrosion, cuts, etc.), hydrogen embrittlement

Dampen stress, avoid critical rotary speed, minimize surface notching, move bottom hole pipe up hole on trips, use shock subs, prevent H2S in flow. Use lowest strength pipe where possible. Minimize rate of change in hole deviation.

Surface Notching - CORROSION PITTING: General in location

Body wall loss, localized surface notch, stress concentration

Water, oxygen, CO2, H2S, and stress

Maintain mud pH above 9.5, plastic coating, inhibitors, oxygen scavengers, clean pipe ID & OD, dampen stress, monitor with corrosion test rings

Suface Notching - SLIP CUTS: Located in slip area

Transverse surface notch, stress concentrator

Pipe turning in slips, defective slips/bowl, improper slip handling

Use back-up tong for make-up and breakout, use care when spinning pipe with rotary, improve slip/bowl maintenance, use care while setting slips

Surface Notching - SLIP AREA MASH: Located in slip area Surface impression, stress concentrator Defective slip component, improper slip handling, excessive connection make-up or breakout, bending pipe in slips

Improve slip/bowl maintenance and use care while setting slips

Surface Notching - TONG CUTS: Usually found in an area over and just above pin end upset

Multiple surface notches, stress concentrators

Tongs placed on pipe, worn tool joints, improper tong jaws, poor handling

Place tongs only on tool joint diameter, use correct tong jaws, use sharp tong dies

Surface Notching - CHAIN CUTS: Usually found in area over and just above pin end upset

Circumferential grooves (notch) at pin and upset area stress

concentrators, cold worked metal

Excessive spinning chain slip

Proper chain tension, consider use of power pie spinner Surface Notching - RUBBER CUT EXTERNAL RING CORROSION: Usually found in an area approximately 2 feet above pin end tool joint

Circumferential grooves stress concentrator

Corrosion/erosion at ends of drill pipe/casing protector - Poor mud drain/cleaning at protector end

Periodically move or remove protector, clean pipe at ends and under protector

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Drill Pipe Care and Handling Tips – Tubebodies Cont…

Surface Notching - HAMMER MARKS: Usually found on the tube in areas near the pin and box end tool joints

Localized surface notch, cold worked metal

Tapping pipe to check fluid level on trip out

Use brass tipped hammer, tap pipe lightly

SLIP AREA CRUSHING: Located in slip area

Slip area OD/ID reduction,

longitudinal splits in slip area, body wall thinning

Abrupt setting of slips, defective slip/bowl maintenance, improper slip size

Stop pipe movement before setting slips, check slip-to-pipe fit, improve maintenance, use only correct slip size

NECKING: Usually located near either or both upsets

Reduce pipe OD/ID reduction,

longitudinal splits in slip area, body wall thinning

Stuck pipe, over pull (stretch), excessive hook load

Avoid sticking pipe and avoid over pulling

EXPANSION: Usually located above the pin and below the box which had been backed off. Referred to as string shot

Expanded OD/ID split pipe or tool joint

Stuck pipe, internal explosion for back off

Avoid sticking pipe, minimize explosive force. Be sure explosive is placed in tool joint area, carefully inspect pipe before re-use

COLLAPSE: Usually begins near tube center, often travels toward both ends

Flattens tube, circulation block, string separation

Excessive OD pressure, drill stem test, OD wear, ID erosion

Minimize OD wear, keep pipe straight, and prevent ID erosion with plastic coating

O.D. WEAR: Usually appears in center third of pipe body

Body wall thinning, reduced tensile capacity, reduced cross section, reduced collapse resistance Abrasive formations, crooked pipe, deviated hole, high rotary speeds

Straighten pipe, minimize hole deviation/rate of change, avoid critical rotary speeds

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Drill Pipe Care and Handling Tips – Tool Joints

WASHOUT Erosion of shoulder

(face) seal and threads, mud pressure loss, string separation, lost time

Leaking shoulder (face) seals, damaged shoulder (face) seals, insufficient make-up torque, galled threads producing excessive shoulder stand-off, shoulder fins rolled between seals, high spots on shoulder - (false make-up torque), excessive shoulder removal by refacing, stretched pin threads, dirty threads and shoulders, mis-stabbing connection, improper jacking of stands in standback area

Apply proper make-up torque per tool joint class, remove shoulder damage by refacing if possible; recut connection; remove shoulder fins by beveling shoulder; keep thread protectors installed while picking up, laying down, handling, transporting, or storing pipe; clean threads and shoulders before make-up; use care when tripping pipe; use only pipe jack tool with wide area contact DRY OR MUDDY CONNECTION Leaking shoulder (face) seals Insufficient make-up torque, damaged shoulders (face)

Apply proper make-up torque per tool joint class, remove shoulder damage by refacing if possible; recut connection; remove shoulder fins by beveling shoulder.

GALLED SHOULDER

Loss of shoulder seal, excessive shoulder to shoulder standoff, false make-up torque, unstable connection (wobble)

Insufficient lubrication on shoulders, insufficient make-up torque, shoulder fins, high spots on shoulder

Apply rotary tool joint compound to shoulders when doping connection, remove shoulder fins by beveling shoulder, remove high spots by refacing. Apply proper make-up torque per tool joint class.

PIN BREAK: Cup type failure

Improper trip make-up torque, additional downhole make-up, improper type lubricant producing excessive tension vs. make-up/torque

Apply proper make-up torque per tool joint class, minimize additional downhole make-up, use recommended rotary tool joint compound

PIN BREAK: Flat fracture type failure

Pin wobble due to insufficient make-up, shoulder fins, false torque, fatigue cracking at thread root, galled threads

Apply proper make-up torque per tool joint class, repair shoulder fins, repair galled threads

PIN BREAK: Flat fracture type failure when torques and make-up are known to be satisfactory

H2S, hydrogen

embrttlement, excessive pin tension

Control H2S in flow, reduce stress level if possible, remove string from service for period of time, inspect tool joint threads

WEAR: Thin shoulder Reduces torque capacity, belled boxes, reduced shoulder seal area

Crooked pipe, high rotary speeds, abrasive formations

Straighten pipe, reduce rotary speeds where possible, apply hardfacing to box end tool joint where possible

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Drill Pipe Care and Handling Tips – Tool Joints Cont…

BELLED BOXES Distorted

connections, loss of shoulder seal, will not mate properly with another connection, split body

Improper make-up torque, additional downhole make-up, thin tool joints, improper thread lubricants

Maintain tool joint OD, apply proper make-up torque per tool joint class, minimize additional downhole make-up torque, use only

recommended rotary tool joint compound, recut box

STRETCHED PINS Distorted

connections, loss of shoulder seal, will not mate properly with another connection, possible pin break

Improper make-up torque, additional downhole make-up, improper thread lubricants

Apply proper make-up torque per tool joint class, minimize additional downhole make-up, use only recommended rotary tool joint compound, recut pin

GALLED THREADS Damages mating

threads, false torque, improper make-up, connection wobble, leaking shoulder seal, washout, pin break, drop string, lost time

Thread damage, handling without thread protectors, cross threading, worn threads, improper lubrication, dirty

connection, defective kelly saver sub

Handle pipe only with thread protectors, use care in stabbing and make-up, recut worn threads, use only recommended rotary tool joint

compound, clean connections before use, repair or replace kelly saver sub

SHOULDER FINS Prevents shoulder

make-up, false torque, leaking shoulder seal, wash-out, connection wobble, pin break, drop string, lose time

Mating tool joints with different OD's, handling damage

Match tool joint OD's if possible, remove fins by refacing and beveling, handle pipe only with thread protectors

HEAT CHECK Tool joint body

cracking, wash-out, string separation lost time

Rapid heating due to friction between tool joint and formation, casing whip stock, etc. High rotary speeds, rapid cooling

Reduce rotary speeds through tight areas, minimize tool-joint-to-formation contact

SHOULDER DAMAGE

Leaking shoulder seal, washout, string separation, lost time

Mis-stabbing connection, handling damage, spinning chain between shoulders, improper pipe jacking

Use care when tripping pipe, handle pipe only with thread protectors, use only pipe jack with wide area contact

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A Guide to Users Visual Examination of Drill Pipe

Straightness

Roll a few lengths to evaluate straightness.

Crooked pipe could be indicative of high stress drilling or rough handling of pipe in previous operations.

Drill pipe which is kinked near the slip area may be indicative of over torque or “hard to break” connections.

Running crooked drill pipe can cause abnormal abrasive wear to the tube body and tool joints and can contribute to unusual vibration in the drill string.

Tool Joint Diameter

Caliper a representative number of tool joints to determine outside diameter. Check some tool joints on both ends, but concentrate attention to box tool joints.

Box tool joint O.D. wear will have a direct affect on the drill string torque capacity. Tool Joint Type

There are many different tool joint dimensional combinations available for different drill pipe diameters, weight/foot and grades. A significant amount of high strength drill pipe may have “non standard” tool joint attached.

The tool joint/pipe combination available may, or may not, satisfy the expected stress parameters for the well to be drilled.

Tool Joint Condition

Look for dry torque shoulders and/or threads. Leaking connections wash away thread compound

Look at the color of the thread compound (dope). The color of 40% to 60% zinc based compound is usually grey. Use of other compounds may affect stress at given torques in a tool joint and can contribute to box belling, pin stretch and cracking.

Check a few torque shoulders for galling, or fluid washes, across the shoulder face. As a minimum, tool joints should have a slight bevel around the outer edge of both pin and box shoulders.

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A Guide to Users Visual Examination of Drill Pipe Cont…

A significant flare to the box torque shoulder can be an indication of possible connection over torquing which could result in belled boxes or stretched pins.

A dark ring around the outer edge of the tool joint shoulders (sealing-surface) can be an indication of under torqued connections. Under torqued connections contribute to “wobble” between pin and bow tool joints causing excessive thread flank wear, galling and possible cracking in the pin threads.

Shorter than normal tool joint length is usually indicative of “re-worked” threads and torque shoulder. Logic dictates that minimum length of the non-hardbanded surface should be somewhat longer that the longest tong die used.

Check general appearance of tong die marks on the pin and box tool joint body. A significant absence of tong die marks on the box tool joint is indicative of the use of only one (1) tong during make-up and break out operations. That practice can cause deep transverse scars in the slip area or result in under torque connections.

Excessively deep tong die marks can be indicative of over torquing or hard to break connections. Raised metal, resulting from excessively deep tong die marks can contribute to casing wear.

Tool Joint Hardfacing (Hardbanding)

Chrome alloy or palletized tungsten carbide hardfacings are frequently applied to tool joint boxes to enhance wear resistance.

Hardfacings typically applied to new tool joints, at the manufacturing plant, are typically applied 3/32” proud (raised) to the outside of tool joint surface.

Careful, but, objective consideration should be given to the presence of hardfaced tool joints and possible casing wear. Smooth or field worn hardfacings do less damage to the casing than hardfacings with a rough finish.

Obviously, hardfaced tool joints are intended to be run in open hole where the tool joint works against the surface of the well bore.

Tool Joint Welding Date

Check the tool joint welding date stamps located on the pin base adjacent to the torque shoulder. See API RP7G-2 for the information available for this procedure.

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A Guide to Users Visual Examination of Drill Pipe Cont…

Tool Joint Mill Slot and Groove Marking

Compare the mill slot and groove markings with API RP7G-2 illustrations to confirm drill pipe weight and grade. Be aware, however, that such markings are not standardized in the industry.

Thread Protectors

Check for presence of tool joint thread protectors. Absence of protectors may be indicative of damaged tool joint threads and shoulders.

Tube Body Outside Surface

When rolling several lengths of drill pipe to check straightness, observe the general outside condition of the tube body. Look for deep transverse cuts in the slip area, mashes at any location, or evidence of sharp notches anywhere on the surface.

Outside surface pitting on drill pie is uncommon unless the pipe has been stored in humid climates. If outside surface pitting is present, it is usually more evident within the outer one third (1/3) of the tube length at each end.

If the pipe has drill pipe/casing protectors installed, or shows evidence of protectors having once been installed, check carefully for corrosion damage on the pipe surface where the protector would normally be positioned.

Tube Body Inside Surface

Use a bright light to observe the inside surface of several drill pipe lengths.

Look for heavy mud scale deposits. Thick, dried mud scale flaking from the tube surface can plug small jet nozzles. Mud scale on the pipe surface tends to retain moisture and

accelerates corrosion pitting damage.

Most drill pipe is internally plastic coated to reduce damage to the I.D. surface from corrosion pitting.

Presence of plastic coating, in good condition, helps reduce accumulation of mud scale. Plastic coating generally has a slick, shiny finish and its condition is relatively easy to evaluate with a bright light.

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A Guide to Users Visual Examination of Drill Pipe Cont…

The corrosion control is reasonable if between 70% to 80% of the tube surface between opposite upset runouts is covered with well-bonded plastic coating.

Large sections of dis-bonded coating not only reduce the percent of surface protection but flaking coating can be a plugging concern.

It is difficult to accurately evaluate inside surface pitting damage, in drill pipe, by visual examination from the pipe end. Presence of coating or mud scale tends to hide the pitted condition. If heavy scale is present, or if pitting can be seen, a more thorough inspection should be performed.

Other Helpful Information

If drill pipe has been exposed to severe hydrogen sulfide (H2S) the surface of the pipe will sometimes have a dark green to black color appearance a few days after exposure.

Ask for information about performance history of the string. Sometimes good data is kept regarding accumulated footage drilled, rotating hours, and failure and damage records, etc.

Determine when drill pipe was last inspected and what type of inspection services, and specifications were applied.

Match the inspection report documents with the pipe in question. The report should reflect when the inspection was performed and the number of lengths serviced. Corresponding length numbers and service date markings are steel die stenciled on the pin end tool joint 35° taper adjacent to the upset and should match information on the inspection report.

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Transportation and Storage of the Drill String

Pipe that is being moved on a truck or rail car should be placed with all pins facing the same end. The load of pipe should be snugly chained down to prevent the joints from hitting one another and damaging the tool joints or the pipe itself.

When drill pipe reaches the rig, the truck should be placed so that when the pipe is unloaded, the boxes will face the rig side of the rack. The pipe should be unloaded carefully, making sure that the pipe protectors are on securely. For unloading, a sling and a spreader bar for supporting the pipe in two places should be strung from the gin pole. Support in two places is necessary for keeping the pipe under control and preventing it from bending. A snub line should be tied around the load to help control it and to keep the pipe parallel to the stack on the truck as it is rolled onto the ramp. The pipe rolling onto the ramp must also be prevented from crashing into the pipe already on the rack.

The first tier of pipe on racks at the drilling site should be at least 12 inches from the ground to ensure good ventilation. Supports properly spaced should be provided to hold up the middle of the pipe and keep it from sagging. Wooden strips of equal thickness should be inserted between layers of pipe over the support areas to keep the weight evenly distributed on the bottom layer of pipe. Ten feet is the maximum recommended height for stacks of drill pipe on the ground, five tiers are the maximum on the rig itself.

From the time that pipe is first delivered to the rig, a record should be kept on it. The record should show expected and actual life of the pipe, type of service given, and any unexpected or severe circumstances to which the string has been subjected.

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Used Drill Pipe Recommendations

Recommended Minimum Dimensional

Requirements Prior to Recoating Drill Pipe Tubes or Rebuilding Tool Joints

4 ½” 16.60# S-135 NC-46

New API 5DP and RP7G-2 Specifications Used API RP7G-2 and DS-1 Specifications Recommended Minimum Specifications Tube Body Wall

Thickness .337" .270" .286"

Tool Joint O.D. 6 1/4" 5 25/32" 5 29/32"

Pin Tong Space 7" 4 9/16" 6"

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Used Drill Pipe Recommendations Cont…

5” 19.50# G-105 NC-50

New API 5DP and RP7G-2 Specifications Used API RP7G-2 and DS-1 Specifications Recommended Minimum Specifications Tube Body Wall

Thickness .362" .290" .308"

Tool Joint O.D. 6 5/8" 6 3/32" 6 7/32"

Pin Tong Space 7" 4 19/32" 6"

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Used Drill Pipe Recommendations Cont…

5” 19.50# S-135 NC-50

New API 5Dp and RP7G-2 Specifications Used API RP7G-2 and DS-1 Specifications Recommended Minimum Specifications Tube Body Wall

Thickness .362" .290" .308"

Tool Joint O.D. 6 5/8" 6 5/16" 6 7/16"

Pin Tong Space 7" 4 3/4" 6"

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Used Drill Pipe Recommendations Cont…

5 1/2” 21.90# S-135 FH

Thickness .361" .289" .307"

Tool Joint O.D. 7 1/2" 6 15/16" 7 1/16"

Pin Tong Space 8" 5 7/32" 6"

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Used Drill Pipe Recommendations Cont…

6 5/8” 27.70# S-135 FH

Thickness .362" .290" .308"

Tool Joint O.D. 8 1/2" 8" 8 1/8"

Pin Tong Space 8" 5 7/8" 6"

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Inspection Services

Why should drill pipe be inspected? Drill pipe is the work horse of down hole tubular strings, it rotates the drill bit, provides a conduit to carry drilling mud down to lubricate the drill bit and pushes the mud up its outer surface carrying bottom hole shavings to the top of the hole.

Drill pipe is subjected to cyclic stresses in tension, compression, torsion and bending. Tension and bending are the most critical of these. Bending and rotation produce an alternation between states of compression and tension at localized points in the drill pipe such as the transition zone and the slip area where 85% of failures occur.

Continuous drilling is the goal, to meet that only premium pipe should be used and all others removed from service. The growing cost of new drill pipe, extended deliveries, continuous changing market, costly down time associated with failures are several reasons why drill pipe is re-inspected often. The Tuboscope drill pipe maintenance program has been designed to provide you with a drill string ready for service.

The benefit to you from Tuboscope inspection services is the assurance defective pipes were identified avoiding catastrophic failures that could lead to loss of the whole drill string or worst the total well.

Tuboscope employs proper inspection techniques to identify which pipe is suitable for further service, limited service or to be removed from service and discarded.

Inspections performed on drill pipe have detected alarming defects: Damaged threads resulting from under-torque

Damaged shoulders from improper care and handling

Slip cuts from poor die maintenance and worn-out handling equipment Bent tubes from exceeding rotation and weight on bit

Fatigue cracks often caused by cyclic stressing and down hole environments like hydrogen, H2S, salts and extreme temperatures

Tuboscope’s inspection in conjunction with care and handling practices has extended the life of drill pipe up to 1 million feet drilled. Your drilling crews play an important part in extending the life of the drill string you depend on with proper work habits, it’s essential.

Tuboscope has partnered with thousands of customers saving them millions by performing state-of-the-art inspections recovering usable pipe and drastically offsetting capital cost with the delay of new drill pipe purchases.

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Inspection Services Cont…

TH Hill Drill Pipe Inspection Program Summary DS-1™ Category 1

Tool Joint – Visual Connection

The tool joint connection is examined to determine grade, condition of seal, threads, hardfacing, bevel, box swell and pin stretch.

Tube Body – Visual

The inside and outside surfaces are examined to determine general; conditions.

DS-1™ Category 2

Tool Joint – Dimensional 1

The dimensional measurement of the tool joint O.D., I.D., box shoulder width, tong space, box swell.

Tube Body - O.D. Gauge

The tube body outside diameter is mechanically gauged from upset to upset to determine abrasive wear or mechanical damage.

Tube Body – Ultrasonic Wall Thickness

Minimum remaining body-wall is determined at point of maximum wear by utilizing ultrasonic wall measurements.

The dimensional measurement of the tool joint O.D., I.D., box shoulder width, tong space, box swell.

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Inspection Services Cont…

Tube Body – Electromagnetic 1

An electromagnetic inspection performed on the tube body utilizes an active longitudinal D.C. magnetic field and a detector unit which travels the length of the pipe body. Magnetic flux disturbances caused by transverse or three-dimensional defects such as fatigue cracks or corrosion pits are detected and recorded.

Additional to Dimensional 1 box counterbore depth, box counterbore diameter, bevel diameter, box seal width and pin neck length.

Tube Body – MPI Slip/Upset

Dry magnetic particles are applied to the outside surface of the slip and upset area to detect transverse and three-dimensional flaws. From pin shoulder out to 36” / box shoulder out to 48”.

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Inspection Services Cont…

Tool Joint – Backlight Connection

Wet fluorescent magnetic particles are applied to the connection surface under hood and the outside surface of the box looking for heat checking.

An electromagnetic inspection system utilizing an active longitudinal D.C. magnetic field and a gamma wall gauge (note; FLUT1 or EMI1 with UT wall reading may be substituted).

Dry magnetic particles are applied to the outside surface of the slip and upset area to detect transverse and three-dimensional flaws. From pin shoulder out to 36” / box shoulder out to 48”.

Tube Body – UT Slip/Upset Area

An ultrasonic shear-wave technique is used to inspect the critical, high-stress upset run-out and adjacent tube body end areas for transverse fatigue cracks.

DS-1™ Category HDLS (Heavy Duty Landing String)

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Inspection Services Cont…

Tool Joint – Backlight Connection

Wet fluorescent magnetic particles are applied to the connection surface under hood and the outside surface of the box looking for heat checking.

Tool Joint - Traceability

To verify an individual number is traced to its mill certificate and material test reports.

Tube Body – FLUT 2

An ultrasonic inspection performed on the tube body utilizes the shear wave and compression wave techniques to inspect in longitudinal, transverse and oblique directions to include wall thickness measurements.

Dry magnetic particles are applied to the outside surface of the slip and upset area to detect transverse and three-dimensional flaws. From pin shoulder out to 36” / box shoulder out to 48”.

Tube Body – UT Slip/Upset Area

An ultrasonic shear-wave technique is used to inspect the critical, high-stress upset run-out and adjacent tube body end areas for transverse fatigue cracks.

Tool Body - Traceability

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Used Drill Pipe Inspection Services

SONOSCOPE® Inspection - Standard Rack

The SONOSCOPE inspection evaluates service-induced defects in the used drill pipe tube body to API RP7G-2, DS-1 or customer specifications:

1. Each length is numbered sequentially on the pin-end tool joint shoulder. The month and year of inspection and the Tuboscope “T” service mark are also stenciled on the shoulder. 2. The full length outside diameter of the tube body is gauged to determine the area of maximum O.D. wear.

3. The pipe body is examined full length for visible cuts, mashes, gouges and other defects; close attention is given to the slip area.

4. Ultrasonic spot measurements are taken at the area of maximum O.D. wear to establish minimum wall thickness.

5. The SONOSCOPE electromagnetic inspection is performed on the tube body. SONOSCOPE inspection equipment utilizes an active longitudinal D.C. magnetic field and a detector unit which travels the length of the pipe body. Magnetic flux disturbances caused by transverse or three-dimensional defects such as fatigue cracks or corrosion pits are detected and recorded.

6. A magnetic particle inspection is performed on the critical upset areas to detect O.D. fatigue cracks.

7. The tube body is classified and identified in accordance with API RP7G-2 or customer specifications.

Critical Upset Area Inspection Ultrasonic End Area Inspection

The Tuboscope ultrasonic end area unit, utilizes the ultrasonic shear-wave technique to inspect the critical, high-stress upset run-out and adjacent tube body end areas for transverse fatigue cracks. Then the ultrasonic compression wave technique is employed to detect pitting and measure wall thickness.

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Used Drill Pipe Inspection Services Cont…

Tool Joint Inspection

Tool Joint O.D. Measurement

The outside diameter of the tool joint is measured to API RP7G-2 or customer specifications to classify the tool joint O.D. reduction due to abrasive wear.

Tool Joint Shoulder (Face) Visual Examination

Tool joint shoulders are cleaned and visually examined for galls, nicks, washes, fins and other damage which would affect the pressure holding capacity and stability of the tool joint. The tool joint is also checked for bevel condition.

Tool Joint Welding Date/Grade Mark Examination

To determine pipe age, grade, weight per foot and possible tool joint rework, the pin base is visually examined for tool joint manufacturers’ markings.

Tool Joint Shoulder (Face) Width Measurement

A mechanical gauge is used to measure pin and box tool joint shoulder width, including bevel, in accordance with API RP7G-2 or customer specifications.

Tool Joint Clean and Visual Examination

Tool joint threads and shoulders are cleaned and visually examined for thread and shoulder damage and bevel condition.

Check Tool Joint Pin Stretch - (with profile gauge)

The tool joint pin is cleaned, and threads are visually compared to a hand-held thread profile gauge.

Check Tool Joint Pin Stretch - (with mechanical lead gauge)

The tool joint pin is cleaned, and thread lead is measured with a dial indicator gauge to determine presence and amount of pin stretch.

Check Tool Joint Box Swelling

A measurement is taken across the box inside counter-bore and compared to API Spec 5DP dimension Qc for possible indications of box swelling.

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Used Drill Pipe Inspection Services Cont…

Dry Magnetic Particle Tool Joint Inspection, Type I

Pin and box threads, shoulders and the box O.D. surface are cleaned as required. Dry magnetic particles are applied to detect transverse cracking in pin thread roots and to detect longitudinal cracking on the box O.D. surface. Threads and shoulders are visually examined for damage. Dry Magnetic Particle Tool Joint Inspection, Type II

Pin and box threads and shoulders are cleaned as required. Dry magnetic particles are applied to detect transverse cracking in pin and box thread roots. Threads and shoulders are visually examined for damage.

Wet Fluorescent Magnetic Particle Tool Joint Inspection, Type I

Pin and box threads, shoulders and the box O.D. surface are cleaned as required. Wet fluorescent magnetic particles are applied to detect transverse cracking in pin thread roots and to detect longitudinal cracking on the box O.D. surface. Threads and shoulders are visually examined for damage.

Wet Fluorescent Magnetic Particle Tool Joint Inspection, Type II

Pin and box threads and shoulders are cleaned as required. Wet fluorescent magnetic particles are applied to detect transverse cracking in pin and box thread roots. Threads and shoulders are visually examined for damage.

Tube Body Inspection Sonoscope Buggy Inspection

Ultrasonic Full Body Inspection

An ultrasonic inspection performed on the tube body utilizes the shear wave and compression wave techniques to inspect the critical, high-stress areas for transverse fatigue cracks, corrosion, pitting, erosion and measures wall thickness. The multi-channel inspection heads travel the length of the pipe body acquiring real time data.

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Used Drill Pipe Inspection Services Cont…

Tube Body Mechanical O.D. Gauging

The tube body outside diameter is mechanically gauged from upset to upset to determine abrasive wear or mechanical damage. Minimum remaining body-wall is determined at point of maximum wear by utilizing ultrasonic wall measurements.

Determine Minimum Cross Sectional Area (CSA)

Ultrasonic wall measurements are utilized to determine minimum and average pipe body-wall. Cross sectional area is computed at the point of maximum O.D. reduction with minimum remaining wall.

Dry Magnetic Particle Slip Area Inspection

Dry magnetic particles are applied to the outside surface of the slip area to detect O.D. transverse cracking.

Wet Fluorescent Magnetic Particle Slip Area Inspection

Wet fluorescent magnetic particles are applied to the outside surface of the slip area to detect transverse cracking.

Special Services

Heavyweight Drill Pipe Magnetic Particle Inspection - End Areas Only

Pin and box threads and shoulders are cleaned and examined for visual damage or imperfections. Magnetizing equipment is utilized to induce a longitudinal magnetic field. Magnetic particles are applied to the thread surface to detect transverse cracks.

Heavyweight Drill Pipe Magnetic Particle Inspection - Tool Joint and Center Wear Pad Taper Areas Only

Magnetizing equipment is utilized to induce a magnetic field into the upset taper and adjacent tube body. Magnetic articles are employed to detect transverse cracks on the outside surface. Drill Collars, Kellys, Stabilizers, Subs and Core Barrels

Ultrasonic, electromagnetic, mechanical-optical and/or magnetic particle inspections are employed as required to locate defects in these items.

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Inspection Case History

655jts 21,615 5 1/2", 21.90#/ft, S-135 HT-55 TJ -1116826 636jts Accepted 20,988ft 19 Rejected 2.9% 627ft (Cracks) 49jts 1617 2 7/8", 6.85#/ft, S-135, NC 31 TOOL JOINT -1124252 35 jts Accepted 1,155ft 14jts Rejected 28.57% 462ft (Cracks) 568jts 17,906.46ft 5”, 19.50#/ft, S-135, NC 50 TOOL JOINT -1135581 528jts Accepted 16,645.43ft 40jts Rejected 7.04% 1,261.02ft (Cracks) 419 jts 13,825ft 6 5/8", 27.70#/ft, S-135, FH, TOOL JOINT -1154966 414jts Accepted 13,662ft

5 jts Rejected 12.19% 165ft (Cracks, Washout)

79jts 2,607ft 4 1/2", 16.60#/ft, X-95, NC 46, TJ -1147961

75jts Accepted 2,475ft