不同韵律稠油油藏注蒸汽后期转热水驱试验研究  

Experimental Study on Hot-water Flooding of Heavy Oil Reservoirs with Different Rhythms after Steam Injection

作　　者：王增林 殷方好[2] 刘慧卿[3] 王庆[3] 

机构地区：[1]中国石油大学(北京)博士后科研流动站,北京102249 [2]中石化胜利油田分公司采油工艺研究院,山东东营257000 [3]中国石油大学石油工程教育部重点实验室,北京102249

出　　处：《石油天然气学报》2011年第8期143-146,1+10,共4页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2008ZX05011)

摘　　要：针对稠油油藏注蒸汽开发后期进一步提高原油采收率的问题,以物理模拟技术为手段,研究了不同韵律(正韵律、反韵律、复合韵律)储层蒸汽驱转热水驱的开发特征。研究发现,对于正韵律储层,注入蒸汽在高渗带窜流和蒸汽超覆作用的共同影响下波及体积较大,蒸汽驱的开发效果较好;对于反韵律储层,转热水驱时注入热水首先沿上部的高渗带突进,同时由于热水的密度较大,在驱替的过程中不断向中底部运移,提高了波及体积,转热水驱开发效果较好。Based on the issue of further enhancing oil recovery in heavy oil reservoirs at the late stage of the steam injection,by means of physical simulation,studied the development characteristics of hot water flooding in the reservoirs with different rhythms(positive rhythm,reverse rhythm,composite rhythm) after steam drive.The research shows that the positive rhythm reservoirs have a large swept volume in steam flooding influenced in steam overlay and steam channeling,where the flooding effect is getter,the reverse rhythm reservoirs have a large swept volume in hot water flooding,because injected hot water firstly breaks through along the high permeability region in upper part of the reservoirs,and hot water is higher density,in the process of displacement it is continuously migrated to the bottom of reservoirs,thus the swept volume is enhanced with good effect of its flooding.

关 键 词：稠油油藏 韵律模型 蒸汽驱 热水驱 物理模拟试验 提高采收率 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]