注入／压降工艺在低渗透油藏中的应用

单相注入／压降工艺主要用于煤层气测试，在油气井中很少应用，采用目前常规的压降或恢复法对低渗透油藏进行测试，由于油层渗透性差、产量低、恢复时间长等诸多因素限制，很难收集到理想的数据进行分析评价。而在低渗透油藏中采用注入／压降工艺进行测试，可在较少投入和较短的时间内取全取准各项数据，并能求得准确的地层参数。

Application of Injection/Pressure Drop Technology in Low Permeability Oil Reservoir

The single phase injection/pressure drop technology is used very little in oil and gas well test except in coalbed gas test.Because of many restricting factors,such as poor permeability of oil bed,low production,long build-up time etc.,using the method of conventional pressure drop or build-up test is difficult to collect the ideal data to analyse in low permeability oil reservoir.But if the injection/pressure drop technology was used in that reservoir,all kinds of data will be collected with low consumption and short time,and the accurate formation parameter will be get.