摘要
现阶段关于非均质砂岩油藏开发均衡驱替过程中,划分一套开发层系存在严重层间干扰问题,同时针对注水开发过程中各参数的优选标准均是考虑从获得最大采收率角度出发。针对强非均质砂岩注水开发过程中,对低渗层段进行压裂开发,解决一套开发层系下层间矛盾的问题,同时定义无水期采收率和最终采收率和值这一新标准对各开发参数进行优选,并针对X区块进行论证,对比分析两种评价标准模拟开发40a的全区采油速率,计算求得最终累计将来值。结果显示采用新标准能在初期获得更高大的财务净现值,并且累计将来值更大。通过本文提出的新标准,可以为砂岩油藏注水开发过程中各参数的优选提供一点借鉴的地方。
At present,in the development process of heterogeneous sandstone reservoir,serious inter-layer interference problem exists in a set of development layers is seldom considered.At the same time,the optimization criteria of each parameter in the process of water injection are all considered to obtain the maximum recovery.In the process of water flooding in strong heterogeneous sandstone,the fracture development of low permeability layers has been developed to solve the problem of interlayer contradiction in a set of development strata.In this paper,the new standard of the recovery rate and final recovery and value of the water free period was defined,and the development parameters were selected for the X block,and the comparison and analysis of two kinds of evaluation standards for simulation development of 40 years whole area oil recovery rate were carried out,the final net present value was calculated.The results showed that the new standard got a higher financial net present value in the early stage,and the final financial net present value was greater.The new standard proposed in this paper can provide some reference for the optimization of parameters in the process of water flooding development in sandstone reservoirs.
作者
龙禹
刘德华
胡泊
LONG Yu;LIU De-hua;HU Po(Institute of Petroleum Engineering,Yangtze University,Hubei Wuhan 430100,China;Exploration and Development Research Institute of Yumen Oilfield Company,Gansu Jiuquan 735019,China)
出处
《当代化工》
CAS
2019年第4期782-786,共5页
Contemporary Chemical Industry
基金
国家科技重大专项
"页岩气压裂数据系统分析研究"
项目号:2011ZX05004-001-004
关键词
注水开发
参数优选
压裂
采收率和值
Waterflood development
Parameter optimization
Fracture
Cumulative recovery ratio
