钻探工程2024，Vol.51Issue(6)：24-31,8.DOI:10.12143/j.ztgc.2024.06.003
预热气体对油页岩自生热原位转化效果的影响
Influence of preheated gas on the autothermic pyrolysis in-situ conversion process(ATS)for oil shale exploitation
摘要
Abstract
Underground in-situ conversion is an inevitable trend of industrialized development of oil shale,and the autothermic pyrolysis in-situ conversion process(ATS)is a compound and efficient heating method to realize underground in-situ conversion of oil shale.In order to investigate the influence of different high-temperature carrier gases in the preheating stage on the effect of autogenous thermal in-situ conversion of oil shale,this paper took the oil shale in Fuyu area of Jilin,China,as an example,and injected four high-temperature gases,namely,nitrogen,air,steam,and carbon dioxide,into the preheating stage to conduct numerical simulation analysis,and compared the differences in the final oil and gas yields and the energy recovery rates.Taking the high-temperature nitrogen injection group as the control group in the preheating stage,the results showed that the time needed to complete the extraction by injecting high-temperature air,steam and carbon dioxide was reduced by 22%,39%and 12%,respectively,and the maximum energy recovery rate was increased by 55%,86%and 23%,respectively,and the total oil production was reduced by 5%,increased by 18%and reduced by 11%.From the perspectives of mining completion time,energy recovery rate and total oil production,steam injection preheating had the best effect.Therefore,a comprehensive comparison showed that the autogenous thermal extraction method of steam injection preheating could effectively increase the oil production,reduce the time required for extraction,and improve the energy utilization rate.关键词
油页岩开发/原位转化/自生热法/预热气体/能量回收率Key words
oil shale exploitation/in-situ conversion/the autothermic pyrolysis in-situ conversion process(ATS)/preheat gas/energy recovery rate分类
地质学引用本文复制引用
范存翰,朱超凡,刘召,水浩澈,董光顺,李彦伟,郭威..预热气体对油页岩自生热原位转化效果的影响[J].钻探工程,2024,51(6):24-31,8.基金项目
国家重点研发计划项目课题(编号:2019YFA0705502) （编号:2019YFA0705502）
吉林省中青年科技创新卓越团队项目(编号:20220508135RC) （编号:20220508135RC）
吉林省发展和改革委员会自主创新能力建设项目(编号:2022C021) （编号:2022C021）
