公开(公告)号：US11933144B2

公开(公告)日：2024-03-19

申请号：US17594218

申请日：2021-07-01

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Rui Wang ,  Mark Christian Ausborn ,  Zhen Li ,  Elliot M. Chang-Tang

IPC: E21B41/00 ,  B63B35/44 ,  C01B3/38 ,  E21B43/01 ,  E21B43/16 ,  E21B43/40

CPC classification number: E21B41/0064 ,  B63B35/44 ,  C01B3/382 ,  C01B3/388 ,  E21B43/0107 ,  E21B43/164 ,  E21B43/40 ,  B63B2035/444 ,  C01B2203/0233 ,  C01B2203/068 ,  C01B2203/1235 ,  C01B2203/84

Abstract: Offshore systems and methods may be configured for offshore power generation and carbon dioxide injection for enhanced gas recovery for gas reservoirs. For example, a method may include: providing an offshore facility including a gas turbine, and a gas separator; producing a produced gas from a gas reservoir to the offshore facility; combusting the produced gas in a gas turbine to produce power and a flue gas; at least partially removing nitrogen from the flue gas in a gas separator to produce a carbon dioxide-enriched flue gas and a nitrogen-enriched flue gas; compressing the carbon dioxide-enriched flue gas in a gas compressor to produce a compressed gas; and injecting the compressed gas from the gas compressor into the gas reservoir, wherein 80 mol % or more of hydrocarbon in the produced gas is combusted and/or injected into the gas reservoir.