多层合采气田层间采收率及影响因素——以靖边气田A井区为例  

Study on recovery factor and its influencing factors of small layers in commingling production gas field

作　　者：任茜莹 代金友[1] 代恒[2] 王永林[2] 赵正军[2] 穆中奇 REN Qianying(College of Petroleum Engineering,China University of Petroleum(Beijing),Beijing 102249)

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]中国石油长庆油田分公司第一采气厂

出　　处：《石油地质与工程》2018年第6期67-69,119,120,共5页Petroleum Geology and Engineering

基　　金：国家科技重大专项"复杂油气田地质与提高采收率技术"(编号:2008ZX05009-004-03)资助

摘　　要：靖边气田多层合采气田层间动用不均衡,落实层间采收率状况、明确采收率影响因素对气田均衡开采、调整挖潜和提高采收率具有重要意义。利用钻井、测井解释及生产动态资料,在地质储量和动储量计算基础上采用动储量分析法及相关分析技术研究了靖边气田A井区层间采收率及其影响因素。结果表明,多层合采条件下小层采收率差异很大,小层采收率呈现一高多低的格局,层间采收率主要受控于储层物性、尤其是渗透率,而与有效厚度、含气饱和度关系不密切。Interlayer production imbalance existed in commingling production of Jingbian gas field,it is of great significance to make clear the recovery factor status of interlayer recovery and the influencing factors of recovery factor for balanced production,potential tapping adjustment and enhanced recovery factor of gas field.Taking well area A of Jingbian gas field as an example,by using drilling,logging interpretation and production performance data,based on the calculation of geological reserves and dynamic reserves,dynamic reserves analysis method and correlation analysis technology are used to study the interlayer recovery factor and its influencing factors.The results show that the recovery ratio of small layers varies greatly under the condition of multi-layer commingled production in Jingbian gas field.The recovery factor of the small layers shows a pattern of one high and the rest low,and the recovery factor of small layers is mainly controlled by reservoir physical properties,especially permeability,but not closely related to effective thickness and gas saturation.

关 键 词：靖边气田 多层合采 层间采收率 

分 类 号：TE377[石油与天然气工程—油气田开发工程]