普通稠油油藏水驱转热采井网优化研究

水驱普通稠油油藏开发后期由于物性差异开发效果差别较大,地层中已形成稳定的流线场,加密对开发效果难有较大改善.结合胜利油田实际区块营8断块注水开发已进入中高含水采油期的实际情况,通过建立油藏数值模型,结合数值模拟和油藏工程综合研究,找出剩余油分布规律,研究水驱普通稠油油藏开发后期转热采井网优化方式等方面的问题.在综合考虑开发效果的基础上,得到对普通稠油油藏进行井网抽稀可改善开发效果;不同井网优化方式下五点法稀井网的最终采收率最高;水驱普通稠油油藏转热采在含水80％时进行井网优化效果较好等结论.研究结果可为目标区块以及同类区块的有效开发提供技术依据.

Well pattern optimization of common heavy oil reservoir water flooding to thermal recovery

Because of theSphysical differences,at the late stage development of Water floodingSin heavy oil reservoir,well pattern infilling is hard to improve the development effect, Combing with the actualSarea of Shengli oilfield water injection developmentSof Ying 8 faultSblock and build aSreservoir numerical model. we can find out the remaining oil distribution law and problems of well pattern optimization methods of later Water drive reservoir turns to thermal recovery. Improving the thermal effect in comprehensive consideration of the development. Under the differentSwell pattern optimizationSmethod, five point sparse well network get the highest ultimate recovery,well patternSoptimizationSeffect is betterSinS80% Moisture content. The resultsSprovide technical basis for theStarget areaSandSthe similarSblocks.