2117053-A is referenced by 70 patents and cites 6 patents.

The combustion chambers 30 of gas turbine units 6(a) to 6(c) (or equivalent piston engines) are supplied with fuel gas via pipe 26 and in order to compensate for a substantial decline in the calorific value of the fuel gas over a period of time, commercially pure oxygen or oxygen-enriched air is supplied to each combustion chamber 30. The fuel gas may comprise associated gas separated in separator 22 from crude oil obtained from a production well by a method employing nitrogen to enhance the recovery of oil from the well. The oxygen or oxygen-enriched air is taken from a cryogenic air separation unit 10 which produces the nitrogen for the enhanced recovery of the oil, air being supplied to the separation unit 10 by compressors 4(a), (b) driven by gas turbine unit 6(a).

Title
Gas turbines and engines
Application Number
GB19830003675 19830210
Publication Number
2117053 (A)
Application Date
February 10, 1983
Publication Date
October 5, 1983
Inventor
Graham David James
Assignee
Boc Group
IPC
F02B 47/06
F02C 03/22
F25J 03/04
F02C 03/20
E21B 43/34
E21B 43/16
F25J 03/04
F02C 03/22
E21B 43/34
E21B 43/20
E21B 43/16
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