摘要
二三结合阶段位于化学驱前期,是化学驱必经阶段和重要阶段。通过J16块二三结合实施效果总结,坚定了同类型油藏开展二三结合挖潜信心。给出了潜力层识别标准、分析了二三结合效果好的井所在区域及层段分布特征、总结了二三结合实施效果的影响因素,便于指导同类型油藏如何开展二三结合挖潜。相对化学驱来说,二三结合对区块采收率贡献较小,因此该阶段不宜过长,应适时转入化学驱开发。
The stage of second tertiary combined is located in the early stage of chemical flooding,which is the necessary and important stage of chemical flooding.By summarizing the general situation of second tertiary combined in J16 block,the confidence of developing the combination of second tertiary combined in the same type of reservoirs is strengthened.The identification criteria of potential layer,the areas and intervals where wells with good effect of second tertiary combined are analyzed,and the scenic fators of second tertiary combined effect are summarized,so as to guide similar reservoirs how to develop second tertiary combined potential.Comared with chemical flooding,the second tertiary combined less to block recovery,so it should not be to long at this stage,and should be transferred to chemical flooding development in time.
作者
张舒琴
Zhang Shuqin(Liaohe Oilfield)
出处
《内蒙古石油化工》
CAS
2020年第9期24-25,共2页
Inner Mongolia Petrochemical Industry
基金
国家科技重大专项“水驱砂岩油藏提高采收率关键技术研究与应用”(2017E-1604)
关键词
二三结合
潜力层识别
剩余油分布
second tertiary combined
water flooding
effect analysis
potential layer identification
remaining oil distribution
