摘要
安塞油田是一特低渗油田，长６油层组是其主力油层组，开采之初即进行了注水开发。从１９８６年至１９９６年，长６油层地层温度下降了２１８～４１１℃，原油粘度增加了００９４～０１７７ｍＰａ·ｓ。模拟实验结果表明：长６油层注水开发后，原油粘度最大限度（地温从５０℃降至２０℃）不会增加到３４ｍＰａ·ｓ，因此，注水开发对长６油层采收率的影响甚微。
Ansai Oilfield is a oilfield with particularly low permeablilty,Chang 6 oil reservoir is the main one.Waterflooding started in the early producing stage.The geotemperature decreased 2 18℃～4 11℃ from 1986 to 1996 AD.,and crude oil viscosity increased 0 094～0 177 mPa ·s .Simulation result indicates that the maximum viscosity would not surpass 3 4 mPa〖JX*4]·s (when geotemparature decreases from 50℃ to 20℃)by waterflooding.It is considered that waterflooding has very little influence on Chang 6 reservoir recovery efficiency.
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
1997年第3期221-223,共3页
Oil & Gas Geology
