海31块弱凝胶调驱技术研究与应用  

Research and application of weak gel profile control and flooding technology in Hai 31 block

作　　者：赵晔 Zhao Ye(Zhongyou Liaohe Oilfield Exploration and Development Research Institute,Panjin,Liaoning 124010)

机构地区：[1]中油辽河油田勘探开发研究院

出　　处：《石化技术》2019年第10期54-54,58,共2页Petrochemical Industry Technology

摘　　要：针对海31油藏地质特征及多年注水的开发矛盾,筛选适合海31块的弱凝胶调驱配方,并对调驱配方进行天然油砂填砂三管模型封堵效果和驱油效果评价试验,三管凝胶封堵率达到99.49%,凝胶封堵提高驱油效率30.40%,驱油体系提高驱油效率12.10%。先导试验井组应用,注入孔隙体积倍数0.35PV,累计增油23729t。In view of the geological characteristics of the Hai 31 reservoir and the contradiction between the development of many years of water injection,the weak gel adjustment and flooding formulation suitable for Hai 31 block was selected.The plugging effect and displacement effect of natural oil sand sand filled three-pipe model were evaluated by the profile control and displacement formula.The gel plugging rate of three tubes reached 99.49%,gel plugging increased the displacement efficiency 30.40%,and the oil displacement system increased the oil displacement efficiency by 12.10%.Pilot test well group application,injection pore volume multiple 0.35 PV,cumulative increase of oil 23729 t.

关 键 词：深部调驱 海31块 聚合物 交联剂 成胶性 

分 类 号：TE3[石油与天然气工程—油气田开发工程]