摘要
伊拉克中南部的M油田为强非均质性碳酸盐岩油藏,其主力油层X层系渗透率极差大。为了解井与井之间的注水连通性、对应性及非均质性,开展了井间示踪剂监测试验。结果表明,注采井组范围内储层存在较强的非均质性; X层系中在2-1小层存在高渗透层,层内非均质性较强,影响了注水开发效果。非均质性较强的碳酸盐岩油藏,在注水开发过程中需要注意高渗透层的存在及其对注水开发效率的影响。
M oilfield in the southern part of Iraq is a strongly heterogeneous carbonate reservoir,and the X formation of the main reservoir has large difference in permeability.Inter-well tracer monitoring test is carried out to understand water injection connectivity,correspondence and heterogeneity between wells.The research results show that strong heterogeneity exists in reservoirs within injection-production well group;there is high permeability layer in the 2-1 sub-layer of X formation and its strong heterogeneity affects water injection development.For carbonate reservoirs with strong heterogeneity,attention should be paid to the existence of high permeability layer and its influence on water injection development efficiency in the process of water injection development.
作者
崔力公
王自明
杨赤宸
CUI Ligong;WANG Ziming;YANG Chicheng(Geological Exploration and Development Institute,CCDC,CNPC,Chengdu 610051,China)
出处
《重庆科技学院学报（自然科学版）》
CAS
2019年第1期51-54,共4页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
国家科技重大专项"大型油气田及煤层气开发"子课题"艾哈代布水平井整体注水稳油控水及综合挖潜技术"(2017ZX05030-001)
关键词
注水开发
示踪剂监测
碳酸盐岩油藏
非均质性
高渗透层
water flooding
tracer monitoring
carbonate reservoir
heterogeneity
high permeability layer
