摘要
随着开发的深入,大多数油田已经进入高含水阶段。以新疆某水淹水窜油藏为研究对象,该区水淹严重,开发效果差。针对上述问题,利用油藏数值模拟手段,对改善开发效果的4种技术方案进行研究。研究结果表明,深层调剖方案增产效果明显,可有效提高日产油量、降低含水率;浅层调剖方案作用范围、受效时间有限,措施效果较差;井网调整方案含水率明显下降,产油量上升,增油效果介于深层调剖与浅层调剖之间;周期注水增油效果最差,呈负增长趋势。经方案对比分析,建议对研究区水窜严重的井实施深层调剖。该研究为同类水淹水窜油藏改善开发效果提供了重要理论指导和借鉴。
With the deepening of development,most oilfields have entered the stage of high water cut.Taking a water flooded water channeling reservoir in Xinjiang as the research object,the area is seriously flooded and the development effect is poor.In view of the above problems,four technical schemes to improve the development effect are studied by means of reservoir numerical simulation.The results show that the deep profile adjustment scheme has obvious production increase effect,which can effectively improve the daily oil output and reduce the water cut;the shallow profile adjustment scheme has limited effect range and effect time,and the effect is poor;the water cut of the well pattern adjustment scheme decreases significantly,and the oil output increases,the oil increase effect is between the deep profile adjustment and the shallow profile adjustment;the cycle water injection increases the oil increase effect is the worst,showing a negative growth trend.Through the comparative analysis of the schemes,it is suggested to implement the deep profile adjustment for the wells with serious water crossing in the study area.This study provides important theoretical guidance and reference for improving the development effect of similar water flooded water channeling reservoirs.
作者
倪振
周伟军
汪学华
刘昕
王绍祥
崔健
NI Zhen;ZHOU Weijun;WANG Xuehua;LIU Xin;WANG Shaoxiang;CUI Jian(Reservoir Evaluation Division,PetroChina Xinjiang Oilfield Company,Karamay,Xinjiang 834000,China;Shixi oilfield Operation District,PetroChina Xinjiang Oilfield Company,Karamay,Xinjiang 834000,China;Geological Research Institute,China National Logging Corporation,Xi’an,Shaanxi 710077,China;Well Logging Key Laboratory,China National Petroleum Corporation,Xi’an,Shaanxi 710077,China;China National Logging Corporation,Xi’an,Shaanxi 710077,China;Changqing Branch,China National Logging Corporation,Xi’an,Shaanxi 710201,China)
出处
《测井技术》
CAS
2024年第3期387-394,共8页
Well Logging Technology
基金
中国石油天然气集团有限公司科学研究与技术开发项目“油气藏多物理场联合监测评价方法研究”(2023ZZ05-06)。
关键词
水淹水窜油藏
调剖
井网调整
周期注水
提高采收率
water flooded water channeling reservoir
profile control
well pattern adjustment
cyclic water injection
enhanced oil recovery
