wellbore
Oil extraction tunnel
A wellbore is the hole drilled into the earth to extract oil, gas, water, or other resources—the physical cavity itself, as distinct from the casing or equipment installed within it.
The term appears in petroleum engineering and drilling contexts: The wellbore extended three thousand feet below the surface.
Also called a borehole.
Movable boom apparatus
Small amount or portion
- casingEnclosing cover or frame
- cementingFastening withite adhesive
- mudWet soil mixture
- circulationMovement through a system
reamer · collar · cuttings · kelly · directional · horizontal · vertical · rotary
Enclosing cover or frame
- cementCalcium powder binding agent
- barrierObstruction preventing passage
- annulusRegion between two circles
- corrosionChemical wearing away
erosion · collapse · burst · leak · seal · blowout · kick · pressure test
Hole punched through something
- stimulationEvoking a response
- tubingHollow cylindrical conduit
- packerOne who boxes goods
- linerInner protective covering
hanger · production · screen · fracturing · workover · intervention · plug · inflow
Creation or arrangement
- strataParallel geological layers
- reservoirLarge water storage basin
- rockSolid earthen material
- permeabilityAbility to transmit fluids
porosity · shale · sandstone · limestone · cap rock · source rock · hydrocarbon · oil
derrick
Movable boom apparatus
BOP · drawworks · drill pipe · wellhead
bit
Small amount or portion
circulation · reamer · collar · cuttings · kelly · directional · horizontal · vertical · rotary · penetration
casing
Enclosing cover or frame
- cementCalcium powder binding agent
- barrierObstruction preventing passage
- annulusRegion between two circles
corrosion · erosion · collapse · burst · leak · seal · blowout · kick · pressure test · bond
perforation
Hole punched through something
- stimulationEvoking a response
- tubingHollow cylindrical conduit
- packerOne who boxes goods
liner · hanger · production · screen · fracturing · workover · intervention · plug · inflow · outflow
formation
Creation or arrangement
permeability · porosity · shale · sandstone · limestone · cap rock · source rock · hydrocarbon · oil · gas
wireline
Cable for well measurements
- measurementDetermining size or amount
- loggingRecording system events
- gamma rayHigh-energy nuclear emission
resistivity · porosity · density · sonic · caliper · imaging · neutron · dipole · acoustic · telemetry
wellboresurface mine
Open-air excavation site
open-pit mine · strip mine · quarry · mountaintop removal · surface mining