摘要
伊拉克AH油田是一个以孔隙型为主、局部发育缝洞的碳酸盐岩背斜油藏,主要依靠天然能量和注水开发。结合油井生产动态分析,针对油井见水、含水高和油水关系复杂的特点,根据水油比曲线划分出6种典型产水类型,延伸了产水特征曲线的应用范围。研究表明,以孔隙型储层为主的碳酸盐岩油藏,储集空间类型是水驱开发的关键地质要素,局部受溶蚀塌陷作用的影响。通过储层分类表征,有针对性地制定稳油控水对策。
AH Oilfield in Iraq was a carbonate and anticline resservoir where pores were mainly grown with local development of fractures and caves.It was mainly developed by natural energy and water flooding.In consideration of dynamic analysis of oil production and water breakthrough,high water cut and complex oil-water relations in the well,6types of typical water productions were identified according to the curve of water-oil ratio(Rwor),by which the extent of application of water production curve was expanded.Study indicates that the reservoir space of the carbonate reservoirs that are based on porous reservoir is the key geological element for waterflooding development,it is locally influenced by karst collapse.The countermeasures for oil stabilization and water control should be established by the characterization of reservoir classification.
出处
《长江大学学报（自科版）（中旬）》
CAS
2015年第7期1-6,共6页
Journal of Yangtze University(Nature Science Edition)
关键词
伊拉克
孔隙型
碳酸盐岩
产水特征
控水对策
Iraq
porous type
carbonate reservoir
water production feature
countermeasure for water controlling
