Oilfield Glossary
Oilfield Glossary
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Tools

Drilling

485 result(s) found.

drilling  Drilling terminology deals with major rig components, processes and equipment required to drill and case a well. Definitions in this module range from abnormal pressure to penetration rate and zip collars, and many are augmented by color photographs or high-quality illustrations. All definitions have been reviewed by technical experts in the field of drilling.

A

abnormal pressure air-cut mud annular velocity antiwhirl bit
adjustable choke annular blowout preventer annuli aquifer
air drill annular BOP annulus azimuth
air drilling annular gas flow

B

back off BHST blowout bow-spring centralizer
back wash bicenter bit blowout preventer box
background gas bit BOP brake
backoff bit box BOP stack break circulation
backwash bit breaker borehole break out
barefoot bit nozzle borehole orientation breakout
basket sub bit record bottomhole assembly breakout cathead
bell nipple bit trip bottomhole circulating temperature breakout tongs
BGG blind ram bottomhole pressure bridge
BHA block bottomhole static temperature brine
BHCT blow out bottoms up bullhead
BHP blow out preventer bottoms-up

C

cable head cat line choke manifold concentric
cable-tool drilling cathead Christmas tree conductor pipe
caliper log catline circulate connection
carbide lag test catwalk circulate out connection gas
cased hole cellar circulation contamination gas
casing cement circulation loss contract depth
casing centralizer cement bond log circulation system core
casing collar cement evaluation log clear brine crooked hole
casing coupling cement head coiled tubing crossflow
casing grade cementer coiled tubing drilling crown block
casing head cementing combination string crushed zone
casing point cementing engineer come out of the hole CT
casing shoe cementing plug company man cut and thread fishing technique
casing string chain tongs company representative cut-and-thread fishing technique
casinghead choke line completion cuttings

D

day rate differential pressure sticking drag bit drilling procedure
daylight tour differential sticking drawworks drilling program
DD directional driller drift drilling rate
degasser directional drilling drill bit drilling rig
derrick directional survey drill collar drilling riser
derrick floor directional well drill pipe drillpipe
derrickman displacement drill ship drillship
desander displacement fluid drill string drillstem
desilter dog house driller drillstem test
deviated drilling dog leg drilling break drillstring
deviated hole doghouse drilling contractor dry hole
deviation survey dogleg drilling crew duster
diamond bit dope drilling foreman dynamic positioning
differential pressure

E

eccentric embrittlement erosion exit velocity
eccentricity endless tubing escape line extended reach drilling
electrodynamic brake ERD evening tour extended-reach drilling
elevator erode

F

fingerboard fixed-cutter bit flow line formation evaluation while drilling
fish flapper valve flowline formation pressure
fishing tool float joint formation damage free water

G

gamma ray log gauge hole goose neck gravity toolface
gas cut mud geosteer gooseneck guide shoe
gas show geosteering graveyard tour gumbo
gas-cut mud Geronimo line

H

H2S high-pressure, high-temperature hopper hydraulic horsepower
hardbanding highside toolface horizontal drilling hydrogen sulfide
heavyweight drillpipe high-side toolface hostile environment hydrostatic head
HHP hook HPHT hydrostatic pressure
high side toolface hook load HWDP

I

ID inside blowout preventer inside diameter intermediate casing string
inclination

J

jackup jet jet velocity junk
jackup rig jet mixer joint junk basket
jar jet nozzle

K

KB kelly down keyseat kill
kelly kelly hose kick kill line
kelly bushing kelly spinner

L

lag gas leakoff test lost circulation LOT
LCM liner lost circulation material lubricator
leak off logging while drilling lost returns LWD
leakoff logging-while-drilling

M

magnetic toolface mast mist drilling motorman
make a connection MD mobile offshore drilling unit mousehole
make hole measured depth MODU mud motor
make up measurements while drilling monkey board mud pulse telemetry
makeup cathead measurements-while-drilling monkeyboard mud return line
makeup tongs mechanical sticking moon pool multilateral
marine drilling riser mill out morning tour MWD

N

neat cement nipple nipple down nipple up

O

OD open hole operator overbalance
offset well openhole outside diameter

P

p rate PDM pipe trip positive-displacement pump
P&A penetration rate PIT p-rate
pack off pill plug and abandon pressure hunt
packer pin polycrystalline diamond compact bit pressure integrity test
packoff pipe dope pore pressure prime mover
pad pipe rack positive displacement motor pull out of the hole
PDC bit pipe ram positive displacement pump pusher

R

racking back pipe reeled tubing rig up rotary steerable system
ram blowout preventer reserve pit RIH rotary table
rate of penetration reservoir pressure roller cone bit rotating control device
rathole reverse circulation roller-cone bit roughneck
RCD reversing out ROP round trip
ream rig rotary bushing roustabout
reciprocate rig down rotary drilling run in hole
recycled gas rig floor rotary hose

S

safety joint shut-in bottomhole pressure slip-and-cut stripping
saver sub shut-in pressure slips structural steering
scratcher SIBHP snub stuck
semisubmersible SIBP snubbing stuck pipe
settling pit sidetrack soft line sub
settling tank SIP softline submersible drilling rig
shaker skid spacer fluid suction pit
shale shaker slant hole rig spinning chain supply vessel
sheave slant rig spud surface casing
shoe slant-hole rig stab surface pipe
shoe joint slide stand survey
shoe track slim hole well stand pipe swab
short trip slimhole well standpipe swellable packer
show slip and cut steerable motor swivel
shut in bottomhole pressure slip joint

T

tapered string tight hole total depth tripping pipe
TD tongs tour true vertical depth
Texas deck tool joint travel joint tubulars
TFNB toolface traveling block turnkey
TG toolpusher trip TVD
thief zone top drive trip gas twist off
thread protector topdrive trip out twist-off
threadform

U

underbalance underground blowout underream upset
underbalanced

V

vee door vee-door volumetric efficiency

W

wait on cement weevil wellbore orientation wiper trip
wall sticking weight indicator wellhead WOC
wash out well control wildcat workover
washout wellbore wiper plug worm
washover pipe

Y

yield

Z

zip collars zip groove