南堡陆地油田水平井二氧化碳吞吐主控因素  

Main controlling factors of CO_2 huff and puff in horizontal wells of Nanpu onshore oilfield

作　　者：马桂芝[1] 陈仁保[1] 张立民[1] 强晓光[1] 李远超[2] 

机构地区：[1]中油冀东油田分公司,河北唐山063004 [2]中国石油大学,北京102249

出　　处：《特种油气藏》2013年第5期81-85,154,共5页Special Oil & Gas Reservoirs

基　　金：中国石油天然气股份有限公司重大科技项目"水驱提高采收率关键技术研究"(2011B-1106)

摘　　要：针对南堡陆地油田水平井高含水的情况,对稠油和稀油油藏通过分析大量矿场实践数据以及室内油藏数值模拟和物理模拟,开展了水平井CO2吞吐控水增油主控因素研究,明确了影响水平井CO2吞吐控水增油效果的因素有油层厚度、隔层、构造位置、水平段位置、投产含水率、吞吐前含水率、非均质程度、地层倾角、韵律、吞吐时机等,并明确了其影响规律。该研究为同类型油藏水平井控水增油措施的实施提供了依据,对进一步提高水平井开发效果具有重要意义。Horizontal wells in Nanpu onshore oilfield are high water cut. Field tests data and numerical simulation and physical modeling are analyzed to investigate the main controlling factors of CO2 huff and puff in horizontal wells. The factors affecting water control and oil production are determined to be reservoir thickness,restraining barrier,tectonic setting,horizontal position,water cut at production commencement,water cut before CO2 huff and puff,the degree of heterogeneity,stratigraphic dip,rhythmy and the time of huff and puff. This research provides reference for implementing measures of water control and oil increment for horizontal wells in similar reservoirs,and is significant for improving the recovery efficiency of horizontal wells.

关 键 词：复杂断块油藏 水平井CO2吞吐 主控因素 高含水期控水稳油 南堡陆地油田 

分 类 号：TE347[石油与天然气工程—油气田开发工程]