公开(公告)号：US20240301273A1

公开(公告)日：2024-09-12

申请号：US18578322

申请日：2022-10-27

申请人： GUANGZHOU INSTITUTE OF ENERGY CONVERSION, CHINESE ACADEMY OF SCIENCES

发明人： Dongliang LI ,  Xiang LI ,  Fuqin LU ,  Deqing LIANG ,  Xuebing ZHOU ,  Jingsheng LU

IPC分类号： C09K8/52 ,  C09K8/70 ,  C10L3/10 ,  E21B41/00 ,  E21B43/16

CPC分类号： C09K8/52 ,  C09K8/70 ,  C10L3/108 ,  E21B41/0099 ,  E21B43/164 ,  C09K2208/22

摘要： A nitrogen-carbon dioxide mixed gas jet apparatus for a horizontal well and an exploitation method is presented. The jet apparatus includes: an offshore platform, a natural gas processing unit, and a pressurizing unit, wherein a portion of the gas exploitation pipe in the hydrate layer is provided with a gas injection horizontal well; a mixed gas jet unit and a nozzle assembly are disposed in the gas injection horizontal well; the mixed gas jet unit is configured to mix nitrogen and carbon dioxide, and then inject the mixed gas into a hydrate deposition layer through the nozzle assembly, so that the mixed gas replaces methane gas in the hydrate deposition layer; the portion of the gas exploitation pipe in the hydrate layer is provided with a gas exploitation horizontal well configured to collect the methane gas and convey the methane gas to the natural gas processing unit.