异常高压油藏渗透率变化系数的求取方法  

GETTING METHODS OF THE VALUE OF PERMEABILITY VARIATION COEFFICIENT OF THE ABNORMAL HIGH PRESSURE RESERVOIRS

作　　者：罗天雨[1] 曹文江[1] 陈燕章 

机构地区：[1]西南石油学院 [2]四川地调处

出　　处：《钻采工艺》2004年第5期51-53,共3页Drilling & Production Technology

摘　　要：提出识别渗透率变化系数的两种方法,其一为一次产能测试法,根据产能变化规律,采用试凑法,可以分别求取非脱气情况下及脱气情况下的渗透率变化系数的大小;其二为二次产能测试法,对比两次产能测试数据的差异大小,可在压力降落后求取渗透率变化系数的大小。This paper gives some methods to get the value of permeability variation coefficient of the abnormal high pressure reservoirs.The first one is normal testing method ,which uses the internal output law and the trial and error methold to get the value of permeability variation coefficient of the abnormal high pressure reservoirs under degassing and before degassing respectively.The second one is reapted testing method to get the value of permeability variation coefficient when the pressure droppes,which is based on the quantitative diffience between the first produce and the second one.

关 键 词：渗透率 计算方法 一次测试法 高压油藏 稳定渗流理论 地层压力 

分 类 号：TE312[石油与天然气工程—油气田开发工程]