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Carboniferous Period

Aliphatic solvent | Slabbing board | British Gas Corporation (BGC) | Drilling contractor | Wet natural gas | Pinch-out trap | Geothermal gradient | Deadweight tonnage | Primary recovery | Accomodation platform, rig |


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the period of geological time which

began roughly 350 million years ago and

ended roughly 280 million years ago, the

period in which most coal seams originated

in Northwest Europe

 

Spinning line

a wire горе or chain that is wrapped around

a section of pipe and used to screw (or

"spin up") the section into another section

 

Capillary action

the rise or depression of liquids in narrow

tubes, the formation of films, drops, bubbles,

etc

 

Capital

money and other assets used to finance

investments designed to produce income

Workover

the process whereby a completed production

well is subsequently re-entered

and any necessary cleaning, repair and

maintenance work done

Tungsten carbide

an extremely hard material used in the

manufacture of drill bit studs

Well logging

a comprehensive record of all data collected

during the drilling of a well,

enabling a highly detailed picture of the

strata to be built up

 

 

Log

a tabular or graphic description of drilling

conditions or sub-surface features prepared

during the drilling of a well or its

subsequent evaluation

Log sheets

detailed operating records Normally

containing written information regarding

the operation as well as recorded data

Isopachous map

a geological map which gives the thickness

of a particular stratum

Catalyst

a substance which aids or promotes a

chemical reaction, but does not, itself,

enter into the reaction

Catalytic cracking

the process whereby heavy hydrocarbon

molecules are broken down (cracked) into

lighter molecules by passing them over a

suitable catalyst (generally heated)

Core

the cylindrical section of rock or sediments

obtained when a core barrel with

an annular bit is withdrawn from a well

during drilling

 

 

Sidewell cores

cylindrical sections of rock or sediments

obtained by shooting hollow cylinders of

steel into the wall of the well bore and

subsequently recovering them together

with their contents

 

 

Core barrel

the hollow pipe section above the annular

bit that collects and holds a core

 

 

Kerosene

a medium-light distillate from the oil refining

process intermediate between gas oil

and gaseous fuels, used for lighting and

heating, and for the manufacture of fuel

for jet and turbo-prop aircraft engines,

sometimes spelled kerosene

 

Aviation turbine kerosene (ATK)

a medium-light fuel burned in jet and

turbo-prop aircraft engines

 

 


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