Transcript
Page 1: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

A Noble Drilling Corporation Subsidiary

TT01-26 1

Deep Drilling Problems

DOE Deep Trek Workshop Houston, TX

March 20, 2001

Dr. William C. Maurer

Page 2: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 2

Deep Well Drilling Time Breakdown (GRI Report, 1990)

TRIPPING

21.88%

CONDITION MUD

5.19%

REAMING

2.50%

DRILLING

48.45%

BOP

3.40%

WAIT TIME

2.70%

TESTING &

LOGGING

6.79%

TROUBLE TIME

4.00%

RUNNING

CASING

5.09%

Page 3: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 3

Deep Drilling Concept Rankings (GRI Report, 1990)

PDC/TSD Bits

Slim Holes

Roller Cone Bits

Down Hole Motors

Top Drives

Coiled Tubing

Optimized Drilling

MWD Equipment

Automated Rig

High Pressure Jets

Casing While Drilling

Explosive Drills

Thermal Drills

Drilling Concept Ranking

31.10

30.98

29.58

28.20

28.13

27.70

26.45

25.48

23.70

21.03

18.30

13.70

11.53

Page 4: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 4

Deep Well Drilling/Completion Problems

Problem

Low drilling rates

Short bit life

Slow trips

High casing costs

Motor failures

MWD failures

High drilling cost

Casing wear

Hard rock, chip hold-down

Abrasive rock, impact loading

Deep wells

Multiple strings, deep wells

High temperature

Vibrations, high temp

Large rig, low ROP, casing

Long drilling time

Cause

Page 5: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 5

Deep Well Drilling/Completion Problems (Cont.)

Problem

Mud thermal degradation

High mud ECDs

Poor cement bond

Lost circulation

Cementing liners

Packer failures

Corrosion

Underbalanced Drilling

>3500F

Small holes, long intervals

Poor mud displacement

High cement density

Sealing lap joints

Small diameter, high temp

High Temp, CO2, H2S

Gas compressibility

Cause

Page 6: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 6

High-Power Motor

Page 7: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 7

DOE High-Power Motor Design

Stronger Bearings and Shaft

Increased Rotor/Stator Interference

Additional Stages

Stronger Universal

Page 8: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 8

DOE Motor In Dynamometer

Page 9: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 9

Motor Performance Comparison

0

10

20

30

40

50

60

70

80

0 500 1000 1500 2000 2500 3000 3500

Differential Pressure (psi)

Ho

rse

po

we

r

DOE

Motor

Conventional

Motor

Size: 3-3/8" Motors Rotor/Stator: 4:5 Flow: 110 gpm

Page 10: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 10

Laboratory Drilling Rates DOE Slim Hole System

25

50

0

10

20

30

40

50

60

Conventional DOE Motor

Dri

llin

g R

ate

(ft

/h

r)

Motor

Carthage Marble 3 3/8” Motors 110 GPM

4 3/4” Bit

Page 11: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 11

Hybrid PDC/TSP Bits

Page 12: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 12

DOE Hybrid TSP/PDC Bit

Page 13: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 13

Drilling Rates

97

890

1380

0

200

400

600

800

1000

1200

1400

Roller TSP PDC

Leuders Limestone

3 in. Bits 10,000 WOB 800 rpm 60 gpm

Atmospheric

Page 14: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 14

Cutter Wear Volume vs. Rock Volume Removed 20 rpm, water cooled, Sierra White Granite,

0.06 in. DOC, 0.08 in/rev feed rate

8000

0

1

2

3

4

5

6

7

0 2000 4000 6000 10000 Rock Volume Removed (cc)

Wea

r V

olu

me

(mm

3)

PDC

TSP

Page 15: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 15

Catoosa Test Site

Page 16: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 16

DOE Motor In Derrick

Page 17: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 17

Attaching Hybrid Bit to DOE Motor

Page 18: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 18

Hybrid Bit After Drilling “The Wall”

Page 19: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 19

Field Drilling Rates

23

48

0

10

20

30

40

50

60

Conventional DOE Motor

Drilli

ng R

ate

(ft

/hr)

• 3 3/8” Motor

• 4 3/4” Bit

• Dolomite

• 1600-1900 ft

Page 20: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 20

Comparison to Offset Wells

2098

946.31078

0

500

1000

1500

2000

2500

Offset 1 Offset 2 Hybrid

Footage Drilled/Bit

Page 21: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 21

High Power Geared Turbodrill

Page 22: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 22

Advanced Geothermal Turbodrill (AGT)

Bearing Pack Speed Reducer Turbine

Page 23: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 23

Blade

Movement

Rotor Blading

Stator

Turbodrill Blade Schematic

Page 24: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 24

Turbodrill Blade Schematic

Turbine Shaft

Stator Blading

Turbine Blading

Housing

Page 25: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 25

Page 26: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 26

Planet Gears Sun Gear

Ring Gear

Planetary Gears

Page 27: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 27

VECTOR OIL TOOL Speed Reducer Shafts and Gears

Page 28: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 28

7500

900

85

1100

Rotary Speed Torque

With Gear Box

Without Gear Box

(RPM) (ft-lbs)

Turbodrill Performance

Page 29: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 29

Turbodrill Drill Stand

Page 30: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 30

Drilled Rock Sample

Page 31: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 31

12 1/4” Carbide Roller Bit Texas Pink Granite

42 45

92

0

10

20

30

40

50

60

70

80

90

100

Rotary LANL AGTTurbodrill Turbodrill

Drilli

ng R

ate

(ft

/hr)

Page 32: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 32

Advanced Geothermal Turbodrill (AGT) Field Test

Page 33: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 33

Christensen Bit

Page 34: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 35

Peak Drilling Rates

76

207

0

50

100

150

200

250

Conventional TUBODRILL

Page 35: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 36

Geothermal Multi-Lateral Well

Natural Fractures

Page 36: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 37

Deep Well Lightweight Mud

Page 37: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 38

Lightweight Mud

LIGHT WEIGHT

MUD MUD HOLLOW SPHERES

5.84 ppg 8.5 ppg 3.17 ppg

0.70 S.G. 1.02 S.G. 0.38 S.G.

Page 38: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 39

Glass Beads

Page 39: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 40

Particle Sizes in Unweighted, Water-Based Mud

(After Bourgoyne Jr. et al, 1986)

.01 0.1 1 10 100 1000 10,000

SILT FINE SAND

COARSE SAND

GRAVEL

200

100

60

20

MESH

Solid

s Perc

enta

ge

MICRONS

Bentonite Small Hollow Spheres

Page 40: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 41

Golden State Drilling Rig Mud System

Page 41: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 42

Mud Returns

Page 42: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 43

Lightweight Cement

Page 43: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 44

Foam Cement Photomicrograph

Page 44: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 45

Lightweight Cement

Page 45: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 47

Lightweight Cement Compressive Strengths

Class H Cement

6 8 10 12 14

400

800

1200

1600

Com

pre

ssiv

e S

trength

(psi

)

Slurry Density (Lb/Gal)

Page 46: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 48

6

10-1

10-0

101

102

103

7 8 9 10 11 12 13 14

Density (Lb/Gal) *NMF = No Measurable Flow

Wate

r Perm

eabili

ty (

md)

220

0F -

48 H

ours

Base: Class H Cement + 0.1% Diacel LWL, 5.2 gal water/sk; 15.6 lb/gal

Foam: 1.5% Halliburton Foam Additive +

0.75% Halliburton Foam Stabilizer

Foamed and Cured at 1000 psi N2

Lightweight Cement Water Permeabilities

Page 47: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 49

High Pressure CT Jet Drill

Page 48: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 50

High Pressure Drilling Mechanism

Bit

Jets PDC Cutter

Rock Ledges

Page 49: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 51

10,000 psi

High Pressure Motor

Page 50: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 52

Page 51: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 53

CT High Pressure Jet Drilling Rate

150

300

1600

0

200

400

600

800

1000

1200

1400

1600

1800

Rotary Conventional High Pressure

Dri

llin

g R

ate

Motor Motor

Red Sandstone 3-1/8” Bit

Page 52: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 56 C

em

en

t

Drillpipe or Casing

High Pressure Jets

Drilling Cement

Page 53: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 57

Tubing Filled With Cement

Page 54: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 58

Tubing After Drilling Cement

Page 55: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 59

Cement Drilling Rates

60

1200

0

200

400

600

800

1000

1200

1400

Conventional High Pressure

Ce

me

nt

Dri

llin

g R

ate

s (

ft/h

r)

Motor Motor

Page 56: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 60

Barite Scale

High Pressure Jets

Tubing Barite Scale Removal

Page 57: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 62

Advanced Coring System

Page 58: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 63

Advanced Coring System

Mud Pulse Telemetry

Real-Time Core Height Measurement

Full Closure Valve

Page 59: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 64

Real-Time Core Height Measurement

Control Electronics

Receiver

Transmitter

Inner Barrel

Core

Core Bit

Outer Barrel

Page 60: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 65

Mud Pulse Telemetry

Safety Joint

Thrust Bearing

Pulser

Flow Restrictors

Control Electronics

Receiver

Inner Barrel

Outer Barrel

Page 61: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 66

Page 62: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 67

Formations Grains

Mud Particles

Mud Filtrate

Mu

d F

low

Mu

d F

low

A

nn

ulu

s

Dri

ll P

ipe

Fluid

Formation Damage Mechanism

Page 63: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 69

Mud Tank

Page 64: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 70

Centrifuge Test

Page 65: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 71

Desilter Tests

Page 66: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 72

Pulser Assembly

Page 67: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 73

MWD Pressure TransducerMWD Pressure Transducer

Page 68: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 74

ACS MWD Surface Processor

Page 69: Deep Drilling Problems - Maurer Engineering · 2015-11-05 · Deep Drilling Problems DOE Deep Trek Workshop Houston, TX March 20, 2001 Dr. William C. Maurer . TT01-26 2 Deep Well

TT01-26 75

Pressure Pulse Encoding Patterns for Various Core Heights

1 SEC

2’ 2’ 2’ 2’ 2’ 2’

CORE HEIGHT = 5’

CORE HEIGHT = 10’

CORE HEIGHT = 20’

CORE HEIGHT = 60’

130 FSI

2’


Recommended