Introduction to Drilling Fluids Operation

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SCOMI OILTOOLS Training Department

Introduction to

Introduction to

Drilling Fluids

Drilling Fluids

Operation

Operation

Introduction to

Introduction to

Drilling Fluids

Drilling Fluids

Operation

Operation

Drilling Fluids Workshop

23

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_{– 26}

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_{Nov 2009}

Duri - Indonesia

Drilling Fluids Workshop

23

th

_{– 26}

th

_{Nov 2009}

Duri - Indonesia

SCOMI OILTOOLS

How to find oil

Drilling Rig

Drilling Operation

Drilling Fluids Operation

SCOMI OILTOOLS

How to Find Oil

Direct Indications

o

Natural seepages of oil

o

Outcrops of oil-bearing

rocks

Geological Methods

o

To select promising sites for the drilling of exploratory

wells

o

Prepare a ‘ Map ‘ (both surface and sub surface)

o

Methods :

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How to Find Oil

(seismic)

Using air gun as the source of shock waves Compressed air is more environmen tally friendly than explosives Receivers to record waves reflected by formation layers SCOMI OILTOOLS

How to Find Oil

SCOMI OILTOOLS

How to Find Oil

Sub-surface map

How to Find Oil

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Reservoir Geology/Types

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Oil accumulated in a domal structure

Structure trap resulting from faulting

SALT SALT WATER WATER OIL GAS GAS OIL OIL SALT WATER SALT WATER

How to Find Oil

SCOMI OILTOOLS

Reservoir Geology/Types

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Oil accumulation under an unconformity

Oil accumulation in the vicinity of a piercement-type salt dome

SALT SALT GAS GAS SALT WATER OIL

How to Find Oil

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What Next ?

Well Construction

Drilling (making hole)

Cementing

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Drilling Rig

Is a portable factory that is built to make a hole.

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Land Rig

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Off-Shore (Shallow Water) Jack-Up

Rig

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Jack- up Rig

Move rig to location Jack-down the legs Jack-up the hull Start Drilling

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Off-shore Semi Submersible /

Platform

Off-shore (Deep Water) Semi

Submersible Rig

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Off-shore (Deep Water) Semi

Submersible Rig

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Off-shore (Deep-Water)

Drill-Ship

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Drilling Process

Drilling Surface Hole

Drilling out surface hole with 17-1/2” bit

The mud brings the cutting up to surface

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Run & Cement Surface

Casing

Pulling Out Of Hole (POOH) the Drilling Assembly Running - In Hole (RIH) the Surface Casing ( 13-3/8”) Pumping Cement

Displacing Cement with Mud Waiting On Cement (WOC) to dry

SURFACE CASING (13-3/8”)

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Drilling Intermediate Hole

SURFACE CASING (13-3/8”) Drilling out cement and casing shoe with 12-1/4” bit

Drilling out intermediate hole The mud bring the cutting up to surface

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Run & Cement Intermediate

Casing

SURFACE CASING (13-3/8”) Pulling Out Of Hole (POOH) the Drilling Assembly

INTERMEDIATE CASING (9-5/8”) Running - In Hole (RIH) the Intermediate Casing ( 9-5/8”) Pumping Cement

Displacing Cement with Mud Waiting On Cement (WOC) to dry

Drilling Production Hole

SURFACE CASING (13-3/8”) INTERMEDIATE CASING (9-5/8”) Drilling out cement and casing shoe with 8-1/2” bit

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Logging in Production Hole

SURFACE CASING (13-3/8”) INTERMEDIATE CASING (9-5/8”)

Pulling Out Of Hole (POOH) the Drilling Assembly Running-In Logging Tools Logging-up the formation

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Run & Cement Production

Casing

SURFACE CASING (13-3/8”) INTERMEDIATE CASING (9-5/8”)

Running - In Hole (RIH) the Production Casing ( 7”) Pumping Cement

Displacing Cement with Mud Pulling Out Of Hole (POOH) the Drilling Assembly

Waiting On Cement (WOC) to dry

SCOMI OILTOOLS SURFACE CASING (13-3/8”) INTERMEDIATE CASING (9-5/8”) PRODUCTION CASING (7”)

Well Construction

What Next ?

Well Construction

Drilling (making hole)

Cementing

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Producing Oil

Completion (completing

the well)

OIL $$OIL $$OIL $$OIL $$

Running – in Completion Assembly Displacing mud to Completion Fluids (brine)

Perforate the casing ( to let the oil in to the wellbore )

Oil flows into the wellbore Set the Packer to isolate & divert the oil flow into production tubing

SURFACE CASING INTERME-DIATE CASING PRODUCTION CASING SCOMI OILTOOLS

Drilling Fluids

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What is mud

LIQUID

SOLIDS

MUD

WATER

OIL

SALT

CHEMICALS

BARITE

BENTONITE/GEL

DRILL SOLIDS

WATER-BASE MUD

OIL-BASE MUD

What is mud

LIQUID

SOLIDS

MUD

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Mud Component

1. Base fluids

2. pH Control

3. Viscosifier

4.

Filtration Control

5.

Weighting agent

6.

Additional product :

Shale Control Additive Corrosion Inhibitor

Lubricants Dispersants

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How to mix mud

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How to mix mud (on the rig

site)

How to mix mud (on the rig

site)

C H E M IC A LS MUD FROM TANK

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Scomi Oiltools Products

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Where is

the mud

in Drilling

Operation

MUD PUMP

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Down-hole

mud circulation

TO SHALE SHAKER FROM MUD TANK BACK TO MUD TANK

What does the mud do ?

TO CLEAN THE HOLE

How?

How?

By brings the drill cutting up

to surface

How can the mud bring

How can the mud bring

the cutting?

the cutting?

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What if failed?

Drill cuttings slipped to

bottom

Drill pipes get STUCK !!

Drill cuttings filled up the

annulus and bottom of the

hole

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What does the mud do ?

TO CONTROL

FORMATION

PRESSURE

How?

How?

By provides Hydrostatic

Pressure of the fluids

column

How can the mud give

How can the mud give

Hydrostatic Pressure

Hydrostatic Pressure

Mud Weight

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What if failed ?

K+

What does the mud do ?

Potassium ion to stabilize the clay Form mud cake as a thin wall to protect formation from mud filtrate invasion

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What should it do with drill

cutting

To be separated out from

the mud

How?

How?

Using Solid Control

Equipments

What equipment?

What equipment?

• Screen

• Hydroclones

• Centrifuge

Solids to discard Clean mud to be recycle Mud + Drill cutting from hole screen SCOMI OILTOOLS

What should it do with drill

cutting

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Solid Control Equipments

SHALE SHAKER

CENTRIFUGE DESANDER

DESILTER

Where do

they put the

Solid Control

Equipments

on a Rig ?

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Where do they put the Solid Control

Equipments on the Rig ?

SHALE SHAKER DESANDER

DESILTER CENTRIFUGE

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Where do they put the Solid Control

Equipments on the Rig ?

SHALE SHAKER OVERFLOW DESANDER DESILTER CENTRIFUGE FROM WELLBORE

UNDERFLOW UNDERFLOW UNDERFLOW UNDERFLOW MIXING HOPER MUD TREATMENT (ADD CHEMICALS) MUD PUMP IN TO WELLBORE TANK # 2 SETTLING TANK TANK # 3 DESANDER TANK TANK # 4 DESILTER TANK TANK # 5 CENTRIFUGE TANK TANK # 6 SUCTION TANK TANK # 1 SAND TRAP TANK

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Drilling Team

DRILLING CONTRACTOR DRILLING FLUIDS SOLID CONTROL WIRELINE LOGGING MEASURE WHILE DRILLING

MUD LOGGING CASING WELLHEAD OTHER SUPPORT CEMENTING DIRECTIONAL DRILLING TUBULAR OPERATOR TRANSOCEAN SCOMI OILTOOLS SCOMI OILTOOLS BAKER ATLAS SCHLUMBERGER GEOSERVICES WEATHERFORD CAMERON OTHER SUPPORT BJ HALLIBURTON BAKER OILTOOLS PETRONAS CARIGALI