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Ref. No. DE/Glossary, Version 1.1 Date of issue 10 / 3 / 99

Glossary of Terms

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Overview of Drilling Operations 11

Ref. No. DE/1, Version 1.1 Date of issue 10 / 3 / 99

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2 2Rig Components

Ref. No. DE/2, Version 1.1 Date of issue 10 / 3 / 99

FD

Fd

Ff

WW

N=8

NFf

(a) Free body diagram of traveling block (b) Free body diagram of crown block

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3 3The Drillstring

Ref. No. DE/3, Version 1.1 Date of issue 10 / 3 / 99

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Drilling Bits 4 4

Ref. No. DE/4, Version 1.1 Date of issue 10 / 3 / 99

Carbide Tooth

CompactGuageSurface

Shirttail

Jet Nozzle

Milled

Tooth

Middle Row

Nose Row

Spear Point

ShankShoulder

ShirttailHardfacing

Shank

Heal Row

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Formation Pressures 5 5

Ref. No. DE/5, Version 1.1 Date of issue 10 / 3 / 99

2

3

4

5

6

7

8

9

10

11

10 12 14 168 18 20

D

C

B APredicted

Pore PressureGradient

MudWeight

E

Equivalent Mud Weight, ppg

T r u e

V e r t

i c a

l D e p

t h ,

T h o u s a n

d F e e

t

SurfaceCasing

CalculatedFractureGradient

ProtectiveLiner

ProtectiveCasing

; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

S u r f a c e

S u r fa c e

Excess Pressures Subnormal Pressures

Oil Pool"A"

Oil Pool"B"

A

Intake Area

Discharge Area

Potentiometric SurfaceR

e s

e r v o i r R

o c k

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Pann 2

Pann 10

1000

2000

3000

4000

5000

6000

7000

8000

9000

0 1 2 3 4 5 6 7 8 9

Large

SmallLight mudInvaded fluid

1 2 3

Pressure in 1000 PSI

6 6 Well Control

Ref. No. DE/6, Version 1.1 Date of issue 10 / 3 / 99

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Casing 7 7

Ref. No. DE/7, Version 1.1 Date of issue 10 / 3 / 99

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Cementing 88

Ref. No. DE/8, Version 1.1 Date of issue 10 / 3 / 99

;

;

y

y

; Q

; ;

; ;

; ;

Q Q

Q Q

Q Q

;

;

Q

Q

; ; Q Q ; ; Q Q

; ; Q Q ;

;

Q

Q

; Q ; Q

; Q ;

;

Q

Q

; y

;

;

y

y

; ;

; ;

; ;

; ;

Q Q

Q Q

Q Q

Q Q

; ;

; ;

; ;

; ;

; ;

Q Q

Q Q

Q Q

Q Q

Q Q

Circulatingmud

Pumping spacerand slurry

Displacing Displacing End of job

Topcementingplug

Bottomcementingplug

Centralizers

Floatcollar

Shoe

Spacer

SlurryDisplacingFluid

Originalmud

Plug release pin in

Plug release pin out

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Drilling Fluids 9 9

Ref. No. DE/9, Version 1.1 Date of issue 10 / 3 / 99

D

e f l e c

t i o n

( d e g r e e s

)

600o

300

300 600 RPMsetting

o

intercept = YP

slope = PV

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Hydraulics 1010

Ref. No. DE/10, Version 1.1 Date of issue 10 / 3 / 99

n=1.0

9

987654

3

2

198765

4

3

2

0.1

0.01

0.001

0.0001100 1000 10000 100000 100000

Reynolds Number, N Re

F r i c

t i o n

f a c

t o r ,

f

0.80.6

0.4

0.2198765

4

3

2

2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9

Force F

Velocity Distribution

V

Y

Plate moving at velocity (v)

Stationary Plate

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Directional Drilling 1111

Ref. No. DE/11, Version 1.1 Date of issue 10 / 3 / 99

xy

α

α

EX

C Y T

B

A

OP R

R

1000' 2000' 3000' Displacement

2000'

4000'

6000'

8000'

10000'd

D

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1212Directional Surveying

Ref. No. DE/12, Version 1.1 Date of issue 10 / 3 / 99

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Measurement While Drilling 1313

Ref. No. DE/13, Version 1.1 Date of issue 10 / 3 / 99

Rotaryvalve

Motor

Rotating disc

Time

S t a n d p i p e p r e s s u

r e

Bitvalue

(1)

Bitvalue

(1)

Bitvalue

(1)

Phase shift or remain

Valve

Actuator

Time

S t a n d p i p e p r e s s u

r e

Pulse presence or absenceMud

oletool

BypassValve

Actuator

Mud

Mud

Time

S t a

n d p i p e p r e s s u

r e

Bitvalue

(1)

Bitvalue

(1)

Bitvalue

(1)

Bitvalue

(1)

Bitvalue

(1)

Bitvalue

(1)

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1414Subsea Drilling

Ref. No. DE/14, Version 1.1 Date of issue 10 / 3 / 99

H

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Examination and Model Solutions

B3a

Calculate displacement of target:

; ; ; ;

; ; ; ;

y y y y

y y y y

x

y

α

α

β

E

X

BOPK R

R

d

D

Displacement = 30002 + 35002√= 4610 ft

a. DRIFT ANGLE:

2.5 R = 360

100 2 π

; ; ; ;

; ; ; ;

; ; ; ;

; ; ; ;

y y y y

y y y y

y y y y

y y y y

Date:

1. Complete the sections above but do not seal until the examination is finished.

2. Insert in box on right the numbers of the questions attempted.

3. Start each question on a new page.

4. Rough working should be confined to left hand pages.

5. This book must be handed in entire with the top corner sealed.

6. Additional books must bear the name of the candidate, be sealed and be affixed tothe first book by means of a tag provided

Subject:

INSTRUCTIONS TO CANDIDATES

8 Pages

PLEASE READ EXAMINATION REGULATIONS ON BACK COVER

No. Mk.

N A M E : R E G I S T R A T I O N N O . :

C O U R S E : Y E A R :

S I G N A T U R E : C o m p l e t e t h i s s e c t i o n b u t d o n o t

s e a l u n t i l t h e e x a m i n a t i o n

i s f i n i s h e d