新民油田民3区块高含水期开发对策分析

Countermeasures for Oil Development at High Water-cut Stage in Block Min 3 of Xinmin Oilfield

新民油田民3区块进入高含水期阶段,综合利用地质、测井、岩心及动态资料研究其目前生产现状,发现该区块裂缝断层发育,水淹水洗严重。针对问题,为实现稳产,对该区块进行研究,综合分析提出解决矛盾的对策。研究该区块扶杨油层隔夹层类型、分布特征、砂体特征,分析出剩余油分布规律,进行剩余油挖潜同时针对高含水特征采取精细注水调控,水井排加密和堵水主力层位、压裂接替层等对策,取得了一定效果。

Block Min 3in Xinmin Oilfield has entered the high water-cut stage.The geology,well logging,core and dynamic data were comprehensively used to study the current status of production in the block.It was found out that in the block,fractures and faulted zones were developed with serious water flooding and washing.In view of the problem,condition in the block was studied to achieve stable production,the countermeasures were proposed by comprehensive analysis to solve the contradiction.The interlayer types,oil distribution and sandbody characteristics of Fuyang Reservoir in the block are studied,the distribution rules of remaining oil are analyzed,tapping the potential of remaining oil at the same time,in view of the features at high water-cut stage,countermeasures are taken such as fine water-flooding control,infill of water wells array and water plugging in the main reservoirs,replacement by fracturing,and certain effect is achieved.