深层特稠油油藏HDCS开发技术政策界限  

Technical limits of HDCS for developing deep extra-heavy oil reservoirs

作　　者：王可君[1] 

机构地区：[1]中石化胜利油田分公司,山东东营257015

出　　处：《特种油气藏》2013年第6期93-95,146,共3页Special Oil & Gas Reservoirs

基　　金：中石化科研项目"稠油油藏水平井蒸汽驱提高采收率关键技术"(P12123)

摘　　要：针对深层特稠油油藏储量难以动用的问题,运用油藏数值模拟方法,进行深层特稠油油藏HDCS开发技术界限研究.HDCS开发时,布井经济极限厚度为3 m,距离边水的最小距离为90 m.生产过程中水平井的注汽强度为12.5 t/m,CO2周期注入量为100 t,降黏剂周期注入量为20 t,生产井的排液量为30～ 40 t/d时,净产油量最大.在相似油藏的应用后,取得了较好的效果.该研究成果对含有大量边水的深层特稠油油藏开发有重要意义.Numerical simulation was performed to study the technical limits for developing deep extra-heavy oil reservoirs by HDCS( horizontal well-dissolver-carbon dioxide-steam huff and puff). The study shows that the economic limits are 3 m for reservoir thickness and 90m for the minimum distance to edge water. Oil production was the highest when the injected intensity of steam was 12. 5 t / m,CO2 cyclic injection was 100 t,the injection volume of viscosity reducer was 20 t,and the lifting rate of producer was 30 ~ 40 t / d. Applications in similar reservoirs have achieved good result. The research results have important significance to the development of deep extra-heavy oil reservoirs with a large volume of edge water.

关 键 词：深层 特稠油油藏 HDCS 界限 垦西油田 

分 类 号：TE345[石油与天然气工程—油气田开发工程]