Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Drilling > All > Flashcards

All Flashcards

1
Q

Accelerometer

A

Surveying instrument for earth’s gravitational field.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Adjustable choke

A

Rate of flow is controlled by adjusting a conical needle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Angle unit

A

Survey instrument used to measure inclination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Annular preventer

A

A large BOP thats seals btw wellbore and drill pipe. Usually installed above ram type BOP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Api gravity

A

=141.5/specific gravity - 131.5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Back off

A

To disconnect a section of stuck drillpipe by unscrewing one of the connections above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Badger bit

A

Specially designed bit with one big nozzle used for deflecting in soft formations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Bail

A

A rounded steel bar which supports the swivel and connects it to the hook.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Ball up

A

Sticking of drill cuttings to bit or stabilizer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Barge

A

Yek no sakuu ke mamoolan ruye roodkhane va daryache az an estefade mishavad

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Barite

A

Barium sulfite
BaSO4
Weighting material
SG 4.2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Bell nipple

A

In marine drilling, the uppermost component of the marine riser attached to the telescopic joint. The top of the nipple is expanded to guide drilling tools into the well.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Bentonite

A

A fine clay ( mainly montmorillonite) which swells when mixed with water. Sometimes referred to as gel.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Bent sub

A

A short piece of pipe whose axis deviated 1 to 3 degrees. Used as a deflecting tool.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Bit breaker

A

A heavy metal plate which fits into the rotary table and holds the bit while it is being connected to or disconnected from the drill string.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Bit report

A

A report of the operating parameters and performance of the bits run in a well.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Bit sub

A

A short piece of pipe installed immediately above the bit.

Both sides of bit sub has box threads.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Bit walk

A

The tendency for bit and drillstring to wander off course by following the direction of rotation ( usually to the right) in directionaly drilled well.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Blind rams

A

One type of BOP. Designed to close off the wellbore when the drill string is out of the hole.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Blooey line

A

The discharge pipe from a well being drilled with compressed air

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

BOP stack

A

An assembly of BOPs consisting of annular preventer and ram type preventers. For land drilling the BOP stack is installed just below the rig floor, and for floating rigs is positioned on the sea bed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

BHA

A

Bottom hole assembly. Part of drillstring just above bit and below drillpipe.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Breakout

A

To unscrew one section of pipe from another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Bridge

A

An obstruction in the borehole usually caused by the borehole wall caving in.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

BRT

A

Below rotary table. Referrnce point for measuring depth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Building assembly

A

A BHA specially designed for build up.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Bumper sub

A

A part of BHA consisting of a short stroke slip joint which allows a more constant WOB to be applied when drilling from a floating rig.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Caliper log

A

Measures the diameter of wellbore. Used for detecting washouts , calculating cement volumes , or detecting internal corrosion of casing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Casing head housing

A

Installed on top of the surface casing string. Provides a landing shoulder for next casing string and a flanged connection for the BOP stack.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Casing head spool

A

Installed on top of casing head housing or previous spool. Provides landing shoulder for next casing string, access to the annulus between casing strings, and a flanged connection for the BOP stack to be connected to the well.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Casing hanger

A

A part in top of the casing string to suspend the casing from the previous casing housing or spool.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Casing shoe

A

A short section of pipe rounded at the bottom. Used to guide casing in borehole. Sometimes called a guide shoe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Cathead

A

A spool shaped attachment on a winch. Used for hoisting operations on the rig

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Caving

A

Collapse of the walls of the bore hole. Also referred to as sloughing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Centraliser

A

A device to support and centralize the casing.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Centrifugal pump

A

Often used for mixing mud

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Centrifuge

A

Seprates solids from mud

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Cement channeling

A

The irregular displacement of mud by cement, living voids in the cement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Cement head

A

A manifold system installed on top of the casing. Used to pump cement into the casing and releasing top and bottom plugs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Wiper plug

A

Bottom plug in a cement job

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Shut off plug

A

Top plug in a cement job

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Chain tongs

A

A tool used by roughnecks on the rig floor to tighten or loosen a connection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Check valve

A

A valve which permits flow in one direction only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Choke

A

An orifice installed in a line to restrict and control the flow rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Choke line

A

A pipe connected to the BOP stack which allows fluids to be circulated out of annulus and into choke manifold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Choke manifold

A

An arrangement of pipes that allows fluid flow through number of routes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Christmas tree

A

An assembly of control valves that is installed after the well has been completed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Name of clay minerals

A

Kaolinite , illite , montmorillonite, vermiculite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Closure

A

The shortest horizontal distance from a particular survey station back to the reference point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Combination string

A

Tapered string

A casing string that is made up of different grades, weights or sizes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Company man

A

Drilling supervisor

Representative of operating company

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

Compass unit

A

Used to measure azimuth in a survey point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

Conductor line

A

Wireline which carries electric current in logging.

54
Q

Core barrel

A

A tool installed at the bottom of drillstring and top of core bit ( core head) to retain the core

55
Q

Correction run

A

Drilling a part of well to correct the direction of the well as planned

56
Q

Crater

A

A large hole which develops at the surface due to escaping of gas, oil or water during a blow out.

57
Q

Cross over

A

A sub to connect drill string components that have different types or sizes of threads

58
Q

Crown block

A

A block that is steady at top of the derrick over which the drilling line is reeved.

59
Q

Dead line

A

That part of the drilling line btw crown block and deadline anchor

60
Q

Degasser

A

Used to remove unwanted gas from mud

61
Q

Departure

A

One of the coordinates used to plot the path of the well on the horizontal plane (along the x axis) northing?
The other one is easting

62
Q

Desander

A

A hydrocyclone for removing sand from mud

63
Q

Desilter

A

A hydrocyclone for removing silt size material from mud

64
Q

Dog house

A

A small stand for driller on the rig floor

65
Q

Dope

A

A lubricant for the threads of oilfield tubular goods

66
Q

Double

A

A string made up by screwing two single lengths of pipe together

67
Q

Downhole motor

A

A tool in BHA to drive the bit without rotating drillstring

68
Q

Downhole telemetry

A

Transmitting of signals from downhole sensor to surface using either conductor line or by mud pulse ( as in MWD)

69
Q

Drag

A

Force required to move drillstring due to the contact btw drillstring and the wall of the borehole

70
Q

Drag bit

A

A bit with no cone or moving parts. Like fish tale bit or diamond bits

71
Q

Drawworks

A

The large winch on the rig

72
Q

Drift angle

A

Angle of wellbore from vertical plane

73
Q

Drilling contractor

A

Company that owns the rig and hire the crew to operate it

74
Q

Elevators

A

A lifting collar connected to traveling block

75
Q

Emulsion

A

A mixture in which a liquid (dispersed phase) is uniformly distributed in another liquid (continuous phase)

76
Q

Fastline

A

The part of the drilling line which connects drum of the drawworks to crown block

77
Q

Filter cake

A

Mud cake. Wall cake

78
Q

Filter press

A

A devise to measure mid filtration properties

79
Q

Filtrate

A

Liquid part of mud

80
Q

Flare

A

An open discharge of fluid or gas to the atmosphere which is usually ignited

81
Q

Flex joint

A

A component of the marine riser system which can accommodate some lateral movement when drilling from a floater.

82
Q

Float collar

A

Special device inserted one or two joints above the bottom of casing. Prevents the back flow of cement once it has been displaced

83
Q

Floater

A

General term for a floating drilling rig

84
Q

Float shoe

A

Functions as float collar and guide shoe

85
Q

Flocculation

A

Conjunction of solids in a drilling fluid due to additives or contaminants

86
Q

Spurt loss

A

The first effect of fluid loss in a formation with large pores. Followed by building up of filter cake as filtration continues

87
Q

Fracture gradient

A

A measure of how the strength of the rock, varies with depth

88
Q

Fulcrum assembly

A

A BHA designed to build hole inclination

89
Q

Gas cut mud

A

Mud which has been contaminated by formation gas

90
Q

Gel strength

A

The shear strength of mud when at rest.
Ability to hold solids in suspension
Bentonite and other colloidal clays have this characteristics

91
Q

Geostatic pressure

A

Pressure exerted by a column of rock. In normal conditions it’s approximately 1 psi per foot
Lithostatic pressure
Overburden pressure

92
Q

Guideline tensioner

A

A device to provide constant tention on the wire rope from subsea guide base back to a floating drilling rig

93
Q

Gumbo

A

???

94
Q

Gunk

A

Aterm to describe a mixture of diesel oil, bentonite and sometimes cement, which is used to combat lost circulation

95
Q

Gusher

A

An uncontrolled release of oil from the wellbore at surface

96
Q

Gyro multishot

A

Survey device that takes a series of photographic images. Measures direction by a gyroscopic compass.

97
Q

Gyro single shot

A

Like multishot but surveys at static stations

98
Q

Hole opener

A

A drilling tool to enlarge an existing hole to a larger diameter

99
Q

Hopper

A

A large funnel shape device used to mix dry material with mud

100
Q

Hwdp

A

Heavy weight drill pipe

101
Q

Insert bit

A

A type of roller cone bit with tungsten carbide cutters set into the cones

102
Q

Invert oil emulsion mud

A

An emulsion with oil as continuous phase, and water as dispersed phase

103
Q

Jet deflection

A

A technique to deviate the wellbore, by washing away the formation using a badger bit

104
Q

Jet sub

A

A tool used at the bottom of the drill pipe when the conductor pipe is being jetted into position ( only suitable when surface formations can be washed out by jetting)

105
Q

Joint

A

A single length of pipe

106
Q

Junk sub

A

A BHA tool, used to recover pieces of debris from well

107
Q

Kelly

A

The heavy square or hexagonal steel pipe which runs through the rotary table and is used to rotate the drill string.

108
Q

Kelly bushing

A

Also drive bushing

A device which fits into the rotary table and transmit the rotation from rotary table to kelly

109
Q

Kelly cock

A

A valve installed between the kelly and the swivel. Controls the backflow of fluid up the drill string and isolates the swivel and hose from high pressures.

110
Q

Kelly spinner

A

A typically pneumatic device, used for rotating the kelly. Because of low torque it is only useful for initial makeup of threaded tool joints.
It replaced the “spinning chains”

111
Q

Key seat

A

A channel in the side of the wellbore due to dragging action of drill pipe in a dog leg

112
Q

Key seat

A

A tool for eliminating key seats

113
Q

Kill line

A

A high pressure line connecting mud pumps to the BOP stack to control the well.

114
Q

Latitude

A

One of the coordinates used for plotting well path in horizontal plane. ( along y axis)

115
Q

Lead angle

A

The direction at which the directional driller aims the well to compensate for bit walk. Lead angle is measured in degrees left or right of the proposed direction

116
Q

Lost circulation

A

Also lost returns

117
Q

Magnetic declination

A

The angle btw true north and magnetic north. This varies by location and changes slightly each year

118
Q

Make up

A

To assemble and join components together to complete a unit (eg to make up a string of casing)

119
Q

Marine riser

A

The pipe which connects the subsea BOP stack with the floating drilling rig.

120
Q

Mast

A

A portable derrick capable of being erected as a whole.

121
Q

Master bushing

A

Fits into and protects rotary table. Transmit the rotation from rotary to kelly bushing

122
Q

Mill

A

A downhole tool for grinding metal debris in well.

123
Q

Milled tooth bit

A

A roller cone consist of steel teeth projecting from the surface of the cones.

124
Q

Monel

A

Non-magnetic drill collar so that it does not affect magnetic surveying instruments.

125
Q

Monkey board

A

A platform for derrickman when handling drill pipes

126
Q

Moon pool

A

The central slot under the drilling floor on a floating rig.

127
Q

Motion compensator

A

A hydraulic or pneumatic device installed btw the traveling block and hook. For more constant WOB when drilling from a floating rig.

128
Q

Mouse hole

A

A small hole under the derrick floor in which a stand of drill pipe is temporarily stored for later connection

129
Q

MSL

A

Mean sea level

130
Q

Mud balance

A

A device used for measuring the density of mud or cement slurry

131
Q

Mud conditioning

A

Control of drilling fluid to ensure it has the correct properties

132
Q

Mud motor

A

A BHA component used to rotate the bit without rotating the drillstring

Drilling (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions