西南石油大学学报（自然科学版）
西南石油大學學報（自然科學版）
서남석유대학학보（자연과학판）
JOURNAL OF SOUTHWEST PETROLEUM UNIVERSITY(SEIENCE & TECHNOLOGY EDITION)
2015年
3期
122-128
,共7页
层间矛盾%剩余油%变流线%井网调整%建模数模
層間矛盾%剩餘油%變流線%井網調整%建模數模
층간모순%잉여유%변류선%정망조정%건모수모
interlayer contradictions%residual oil%variable streamline%well pattern adjustment%modeling and numerical simulation
针对孤东二区开发单元2011年转入后续水驱后存在的套损事故井多造成局部井网不完善、储量失控大；合采合注井多，层间矛盾突出；一套井网开发，井网形式相对固定，平面层间剩余油得不到有效动用，单元目前采收率低（35.5%）等问题，开展了孤东二区Ng5细分变流线井网调整技术研究，通过层系细分、老井改层以及新井调整井网、转变流线，利用建模数模一体化技术研究剩余油的分布，表明目前排间分流线、油井之间剩余油仍较富集，具备进一步提高采收率的潜力。
針對孤東二區開髮單元2011年轉入後續水驅後存在的套損事故井多造成跼部井網不完善、儲量失控大；閤採閤註井多，層間矛盾突齣；一套井網開髮，井網形式相對固定，平麵層間剩餘油得不到有效動用，單元目前採收率低（35.5%）等問題，開展瞭孤東二區Ng5細分變流線井網調整技術研究，通過層繫細分、老井改層以及新井調整井網、轉變流線，利用建模數模一體化技術研究剩餘油的分佈，錶明目前排間分流線、油井之間剩餘油仍較富集，具備進一步提高採收率的潛力。
침대고동이구개발단원2011년전입후속수구후존재적투손사고정다조성국부정망불완선、저량실공대；합채합주정다，층간모순돌출；일투정망개발，정망형식상대고정，평면층간잉여유득불도유효동용，단원목전채수솔저（35.5%）등문제，개전료고동이구Ng5세분변류선정망조정기술연구，통과층계세분、로정개층이급신정조정정망、전변류선，이용건모수모일체화기술연구잉여유적분포，표명목전배간분류선、유정지간잉여유잉교부집，구비진일보제고채수솔적잠력。
In view of No.2 Block Ng5 adopted water flooding after 2011 in the later development period,which brought many problems,including the well casing damage resulted in imperfect well pattern and large reserves out of control,prominent interlayer contradictions,relatively fixed well pattern,ineffective exploitation of plane interlayer remaining oil,low oil recovery and so on. Therefore,in the study area we to implement segmentation variable flow pattern adjustment. In the study,we can adjust well pattern and transform streamline by subdivision of strata,modifying layer of old wells and drilling new wells. According to study the remaining oil by modeling and numerical simulation technology,we find the remaining oil in the shunt line and between the oil wells is still adequate and has further potential to improve oil recovery.
