文档介绍:摘要滨南油田毕家沙三下油藏已进入高含水阶段,目前研究区注采井网不完善、含水上升速度快、地层能量低、水淹严重、剩余油分布零散等问题导致产量递减快,急需开展油藏地质和剩余油分布研究,以达到控水稳油的效果。本文运用动静态综合分析方法,以油藏描述、油藏工程和数值模拟为手段,系统研究了滨南油田毕家地区沙三下亚段油藏的地质特征和剩余油分布规律,制定并优选出了剩余油开发调整方案。取得的主要研究成果有: 对研究区进行了油藏地质特征分析,对研究区的地层发育特征、沉积特征、储层特征以及油藏特征进行了系统研究,并划分出了非均质开发单元,为搞清剩余油分布和制定调整方案奠定了重要的前提和基础。应用油藏工程方法,采用对比的分析方法,分开发单元对毕家沙三下亚段油藏的渗流特征、水驱开发状况、注水利用状况、可采储量预测以及开发效果等进行了较为系统地研究和评价。从沉积微相、构造、隔夹层、生产动态等几个方面研究了剩余油的控制因素和分布规律,并结合油藏动态和油藏数值模拟,对研究区的剩余油进行了定量评价。在研究剩余油分布状况研究基础上,评价了开发中存在的水驱控制程度低、停产停注井多、井网不完善等主要问题,并制定了相应的技术对策,制定了三套剩余油开发调整方案,并优选出第三套方案作为实施方案,对于本研究区提高原油采收率具有重要的意义。优选的调整方案与基础方案相比,,采油速度提高 %,%,%;, %,%,采收率提高3%。$16、,%,%,%。关键字:油藏地质特征,油藏工程,剩余油,数值模拟,调整方案 The Reservior Geological Characteristic and Research On Remaining Oil intheLower Member ofES3 inBijia,Binnan Oilfield JiaHaizheng(Investigation and Exploration ofMineralResources) Directed by Chengyan Abstract The reservoir production of thelower member ofES3 inBijia,Binnan Oilfield,which now have been atthestage ofhigh water-cut,is declining heavily which was caused by the issuesofrapidrising rateofwater-cut,serious flooding,lower producing energy,scattered distribution ofremaining the effectofkeep declining oiland control rising water-cut,it isnecessity tocarry Out research on thethereservior geological characteristic andremaining oil. The reservior geological characteristic,distribution and development program on remaining oilare allstudied inthisarticleby the means ofreservoircharacterization, reservoir engineering analysis andnumerical simulation with staticanddynamic approach. Main resultsfollowed: The reservior geological characteristic which reflectsthecharacteristic ofstrata development,sedimentation,reservoir bed and SO on have been established,and itgivesan important basisto distributionandadjustment oftheremaining oil. Characteristic offiltration,the ruleofwater ratiorais