【摘 要】
：
油田进入高含水期后,储层参数发生变化,注水井与采油井间形成优势通道,降低注入水的利用率,认识评价和优势流场可以有针对性地进行流场重整提高采收率.选取孔道半径、过水倍
【机 构】
：
中国石油大学石油工程学院,胜利油田地质科学院,University of Wyoming
论文部分内容阅读
油田进入高含水期后,储层参数发生变化,注水井与采油井间形成优势通道,降低注入水的利用率,认识评价和优势流场可以有针对性地进行流场重整提高采收率.选取孔道半径、过水倍数、含水率、流体流速为指标,利用层次分析法和模糊综合评判方法建立了油藏流场评价体系,并将该体系应用到埕东区块,发现主力层系Ng251、Ng252、Ng331、Ng332、Ng34优势流场的区域较大,根据流场重整的原则,进行井网调整、层系调整、生产制度调整进行流场重整,流线数值模拟显示流场重整之后总流场强度降低,提高了注入水的利用率,证明了该体系的有效性,为高含水油田调整提供决策依据.
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