【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。更多还原

【Abstract】 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.更多还原