特低渗储层异常压恢测试曲线分析

特低渗油藏在进行压恢测试时具有压力恢复慢、难以获得准确参数的特点.为此,红×井进行压恢测试时,采用测试管柱内加丝堵来避免液垫影响压力恢复效果的方法,优选出压力恢复测试方案,并对获得的异常测试曲线进行了分析,获得了所需的储层参数,达到了测试的目的.

Analysis of Abnormal Pressure Build-up Curve in Reservoirs with Extraordinary Low Permeability

During pressure build-up test in reservoirs with extraordinary low permeability,the rate of pressure build-up is quite low and so that it is difficult to obtain accurate reservoir parameters by data interpretation.In order to solve this problem,some measures(e.g.putting a plug inside the test string to avoid influencing of liquid cushion to pressure build-up) are taken,build-up test program is optimized,then obtained abnormal test curves are analyzed so that all needed reservoir parameters are obtained,and ...