利用生产数据获取地层压力的方法探讨  

Discussions on Methods of Estimating Formation Pressure by Using Production Data

作　　者：李波 姜伟华 赵梅庆[3] 

机构地区：[1]大庆测试技术服务分公司方法室,黑龙江大庆163853 [2]大庆射孔弹厂研究所,黑龙江大庆163853 [3]华北油田公司采油四厂,河北廊坊065007

出　　处：《油气井测试》2012年第5期26-28,76,共3页Well Testing

摘　　要：Blasingame提出的"物质平衡时间"的概念,从渗流基本方程出发推导出了采油指数与物质平衡时间之间的函数关系,能充分利用现有日常生产数据与流压数据来认识地层流动规律。用该方法的解释结果与实测压力进行了对比分析,就目前的情况而言,生产数据分析方法不可能取代压力恢复测试进行地层压力评价,对于没有测试资料或不具备测试条件的井,该方法提供了一种技术手段,可以认识地层流动规律,了解地层压力。According to the concept of material balance time, a functional relationship between productivity index and material balance time is derived from the basic flow equation, which can be used to deeply understand the rule of flow on the basis of existing routine pressure and rate data. A comparative analysis is carried out on the interpretive result of this method and practically measured pressure. Under current circumstances, analytical methods based on production data cannot perfectly replace the build-up testing for estimating reservoir pressure. However, for wells without testing data or unsatisfying testing conditions, the method provides an alternative way to understand the rule of flow, as well as reservoir pressure.

关 键 词：生产分析 压力 物质平衡时间 采油指数 拟合 

分 类 号：TE271[石油与天然气工程—油气井工程]