Patent description:一种注二氧化碳延长煤层气生产井组服务年限的注采工艺，属于煤层气开发技术领域。选择已连续生产的煤层气生产井组，以中心井为CO2注入井，周边井为采气井，利用CO2对CH4的驱替、置换作用，提高采气井的日产气量，延长煤层气生产井组服务年限；阶梯式增注提压阶段通过阶梯式增加日注入量方式快速提高CO2注入井井底压力；限压注入驱替阶段维持CO2注入井井底压力低于煤储层最小主应力；气驱水产能抑制阶段通过提高抽油机冲次消除气驱水对采气井产气的抑制；采气井增产阶段注CO2驱替、置换CH4使采气井增产作用逐渐显现；间歇式排采
Service Invention or Not:no
First Author:周效志
Attachments:
Associate professor
Supervisor of Master's Candidates
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School/Department:School of Resources and Geosciences
Administrative Position:Deputy Director of the Department
Education Level:With Certificate of Graduation for Doctorate Study
Business Address:CBM Development Laboratory in Wenchang Campus of China University of Mining and Technology
Gender:Male
Contact Information:cumtzxz@cumt.edu.cn
Degree:Doctor
Status:在岗
Academic Titles:Deputy director of Jiangsu low carbon society
Other Post:Member of Chinese Geological Society
Alma Mater:China University of Mining and Technology
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Honors and Titles:
中国自动化学会技术发明二等奖 2023-11-01
领跑者5000中国精品科技期刊顶尖学术论文 2022-12-29
2021年度中国地质学会地质类工程专业优秀本科毕业设计指导教师 2022-08-25
贵州省科技进步三等奖 2007-11-07
煤炭工业协会科技进步二等奖 2013-03-06
贵州省科技进步二等奖 2020-07-01
