An oil and/or gas field judged to be capable of producing enough net income to make it worth developing.   

(1) The proper plugging and abandoning of a well in compliance with all applicable regulations, and the cleaning up of the wellsite to the satisfaction of any governmental body having jurisdiction wit [..]

(1) The act or process of reducing the intensity of pollution.(2) The use of some method of abating pollution.   

The space between: (1) The casing and the wall of the borehole.(2) Two strings of casing.(3) Tubing and casing.   

A well drilled as part of an appraisal drilling program which is carried out to determine the physical extent, reserves and likely production rate of a field.   

A well drilled as part of an appraisal drilling program which is carried out to determine the physical extent, reserves and likely production rate of a field.   

A unit of volume measurement used for petroleum and its products (7.3 barrels = 1 ton: 6.29 barrels = 1 cubic meter).   

One barrel of oil; 1 barrel = 35 Imperial gallons (approx.), or 159 litres (approx.); 7.5 barrels = 1 ton (approx.); 6.29 barrels = 1 cubic meter.   

Billion cubic feet; 1 bcf = 0.83 million tons of oil equivalent.   

Billion cubic meters (1 cubic meter = 35.31 cubic feet).