一种确定致密气藏应力敏感指标及控制储量的新方法  

A new method for stress-sensitivity coefficient and reserve determination of tight gas reservoir

作　　者：窦祥骥[1] 廖新维[1] 赵晓亮[1] 陈志明[1] 王欢[1] 

机构地区：[1]中国石油大学(北京)石油工程教育部重点实验室,北京102249

出　　处：《陕西科技大学学报（自然科学版）》2015年第4期100-105,共6页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(U1262101)

摘　　要：致密气藏常具有较为显著的应力敏感性,评价应力敏感指标对于准确反演储层及裂缝参数具有十分重要的意义.在传统研究过程中,应力敏感指标的确定主要依赖室内实验,但该方法时间周期较长,成本较高,难以满足低成本开发的要求.针对以上问题,本文在流动阶段分析的基础上,改进了相应的关系式,充分考虑了应力敏感对于动态反演结果的影响,建立了一种应力敏感指标及气井单井控制储量确定的新方法,并运用于苏14井区的实例分析.It is widely acknowledged that some tight gas reservoir is stress-sensitive.Therefore,the stress-sensitivity coefficient is very important to obtain formation and fracture parameters.Traditionally,this coefficient is determined by laboratory experiments,which is high-cost and time-consuming.To solve these problems,this paper modified the mathematic model based on the flow-regime analysis method,and proposed a new method to determine the stress-sensitivity coefficient as well as reserve.Finally,this method is applied to Su 14 well zone.

关 键 词：致密气藏 生产动态数据分析 流动阶段分析 应力敏感指标 单井控制储量 

分 类 号：TE353[石油与天然气工程—油气田开发工程]