CO_(2)驱分层注气工艺管柱适用性分析及展望  

Adaptability Analysis and Prospects of Gas Layered Injection String for CO_(2)Flooding

作　　者：幸雪松 曹砚锋 廖朝辉 邹明华 杨树坤[2] 陈欢 李越[2] 赵广渊[2] 郑玉飞[2] XING Xuesong;CAO Yanfeng;LIAO Zhaohui;ZOU Minghua;YANG Shukun;CHEN Huan;LI Yue;ZHAO Guangyuan;ZHENG Yufei(CNOOC Research Institute Co.,Ltd.,Beijing 100028,China;Production Optimization Division,China Oilfield Services Limited,Tianjin 300459,China)

机构地区：[1]中海油研究总院有限责任公司,北京100028 [2]中海油田服务股份有限公司油田生产事业部,天津300459

出　　处：《当代化工》2024年第10期2485-2491,共7页Contemporary Chemical Industry

基　　金：中国海洋石油有限公司科研项目(项目编号:KJGG2021-0505)。

摘　　要：目前,我国现场应用的注气管柱多为笼统注气管柱、同心双管分层注气管柱及偏心投捞分层注气管柱,该类管柱存在着分层数受限、测调效率低、测调精度差及适应性差等问题,难以满足CO_(2)驱油田的精细、高效开发需求。针对这一现象,在现有成熟分层注水管柱的基础上,设计了液控分层注气管柱、测调一体分层注气管柱、有缆智能分层注气管柱,并对这3种分层注气管柱进行了技术适应性分析和实施难点分析,分析发现:所设计的3种分层注气管柱各有优势,配套井下气体流量计的研制既是设计管柱的主要实施难点也是实现精细化注气的关键。最后,对各类流量测量技术进行了技术特性及研究难度分析,并对井下气体流量计的设计选型提出了建议和展望。At present,the gas injection columns used on site in China are mostly general gas injection columns,concentric double tube layered gas injection columns,and eccentric fishing layered gas injection columns.These types of columns have problems such as limited number of layers,low measurement and adjustment efficiency,poor measurement and adjustment accuracy,and poor adaptability,which are difficult to meet the precise and efficient development needs of CO_(2)driven oil fields.In response to this phenomenon,based on the existing mature layered water injection pipe column,hydraulic control layered water injection pipe column,measurement and adjustment integrated layered water injection pipe column,and cable intelligent layered water injection pipe column were designed.The technical adaptability and implementation difficulties of these three layered water injection pipe columns were analyzed,and it was found that each of the designed layered water injection pipe columns has its own advantages.The development of a matching downhole gas flowmeter is not only the main implementation difficulty of designing pipe columns,but also the key to achieving refined gas injection.Finally,the technical characteristics and research difficulty of various flow measurement technologies were analyzed,and suggestions and prospects were proposed for the design and selection of subsurface gas flow meters.

关 键 词：注气管柱 CO_(2)驱 分层注气 井下气体流量计 二氧化碳 二氧化碳捕集 存埋 

分 类 号：TQ022.11[化学工程] TE357.7[石油与天然气工程—油气田开发工程]