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recovery of oil or gas from a reservoir
purely by using the natural pressure in
the reservoir to force the oil or gas out
Enhanced oil recovery
a process whereby oil is recovered
other than by the natural pressure in a
reservoir, see secondary recovery, tertiary
recovery
Tertiary recovery
recovery of oil or gas from a reservoir
over and above that which can be obtained
by primary and secondary recovery,
it generally involves using sophisticated
techniques such as heating the
reservoir to reduce the viscosity of the
oil or injecting chemicals to solubilize
the oil
Proven field
an oil and/or gas field whose physical
extent and estimated reserves have
been determined
Proven reserves
the estimated quantities of hydrocarbons
which geological and engineering data
demonstrate with reasonable certainty to
be recoverable in future years from
known oil and gas reservoirs under existing
economic and operating conditions
Debt
a sum of money owed by one person or
organization to another and repayable
within a fixed period of time
Dolomite
a rock composed of the double carbonate
of calcium and magnesium, a common
reservoir material
Bit
see drill bit
Tranche
a portion of the total amount available
under a loan agreement that is taken up
at any time
Bottoms
a term used to describe the heavy portion of
the feed to a distillation operation The part
which does not vaporize during the operation
Storage tank "bottoms" refers to the
accumulation of sediment, mud and water
Revenue
the gross income from the sale of products
produced
Doodlebugger
a member of a seismic crew
Breathing apparatus
devices which provide a worker with a
supply of air independent of the atmosphere
around him
Eurocurrency
currency used for investment by banks
located outside the country of that currency's
origin
Christmas tree
an array of pipes and valves fitted to
a production wellhead to control the
flow of oil or gas and prevent a
possible blowout
Go-devil
a type of pig with self-adjusting blades
used to clean the interior of pipelines
Hard water
water which does not form a permanent
lather with soap due to the presence of
dissolved salts in the water Hardness is
of two types temporary hardness, due to
the presence of bicarbonates, permanent
hardness, due to the presence of sulphanates
Both types of hardness can be
removed using ion exchange methods
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