摘要
针对G油田GD研究区非均质油藏精细描述及调整挖潜工作,开展非均质油藏单井控制计算储量及剩余油潜力分布研究。分析单井控制计算非均质油藏储量参数,将油层有效厚度、物性和原油性质相同的油层控制在一个单井计算单元内,利用井点面积权衡法确定单井控制含油面积,有效厚度则以每口井所钻遇有效厚度和周围井及边界井权衡确定。从而较好地克服了非均质油砂层边界信息变化及其参数平面和纵向上差异的影响,有效计算出各开发层位单井控制地质储量、技术可采储量、油气产出量和剩余可采储量。文中实例阐述了单井控制计算储量及其剩余可采储量的分析方法,提供出剩余油潜力最大的长611、长613,相对较大的长622、长632、长64和较小的长621、长631开发层位剩余油分布富集具体井位、富集量及其挖潜规模和范围,阐明了油田区块调整和高效开发的主要方向。
In view of detailed reservoir description and adjustment for tapping the potential of the hetero- geneous oil reservoirs of GD research region in G oilfield ,it is necessary to study single well controlled reserves and potential remaining oil distribution.After the parameters of single well controlled reserves in the heterogeneous oil reservoirs are analyzed,the reservoirs with same effective thickness ,physical properties and properties of crude oil could be put in the same single well unit.Single well controlled oil-bearing area may be determined with well-point areal weigh method,and the effective thickness may be known considering the value of each well itself and wells around and offset wells.It is favorable for reducing the influence of boundary information changes of heterogeneous pay sand and the difference of parameters on the plane and the vertical.Single well controlled geological reserves,technical recoverable reserves,oil and gas production rate and remaining recoverable reserves of each production layer may be calculated effec- tively.The method of analyzing the single well controlled reserves and remaining recoverable reserves is in- troduced through a case in this paper.The potential remaining oil is classified into three types：the highest （Chang6_1^1 and Chang 6_1^3）,great one （Chang6_2^2,Chang 6_3^2 and Chang6_4）,and little one （Chang 6_2^1 and Chang6_3^3） and specific well location,accumulation quality,remaining oil scale and scope are provided respectively.h shows the main direction of adjustment and efficient development.
出处
《中外能源》
CAS
2013年第3期53-58,共6页
Sino-Global Energy
基金
国家自然科学基金项目"变形介质复杂储层应力敏感性的岩石流变学机理及动态模型"(项目编号:51104119)
中国石油天然气股份有限公司科学研究与技术开发项目"致密气藏测井采集处理与评价技术研究"(项目编号:2010E-2304)
关键词
非均质油藏
单井控制储量
边界信息
平面、纵向差异
剩余可采储量
分析方法
heterogeneous reservoir
single well controlled reserves
boundary information
difference on the planeand the vertical
remaining recoverable reserves
analytical method
