Mini-DST测试及解释技术在海上低渗探井中的应用

Application of Mini-DST Test and Interpretation Technology in Low Permeability Exploration Well in the Sea

Mini-DST测试是指在钻井过程中采用地层动态测试器(MDT)进行随钻测试,采用抽汲探针进行流量及压力测试,兼顾地层流体取样分析。应用解释技术对压力、产量响应特征进行分析,获取储层渗透率、产能等参数。该技术与常规MDT测试相比,能够获取更多的储层参数,与传统DST测试相比,降低测试作业时间及费用,提高测试效率。该技术应用至海上低渗探井测试,能够快速评价储层物性参数及产能特征。

The Mini-DST test refers to the use of the ground dynamic tester(MDT)to carry out test in the drilling process,and using the swab probe to do the flow and pressure test,taking into account the sampling analysis of the formation fluid.The features of pressure and yield response are analyzed by using explain technology to obtain permeability,capacity and other parameters of reservoir.Compared with conventional MDT test,it can obtain more reservoir parameters,lower test operation time and cost,and improve test efficiency than traditional DST test.This technology can be applied to the test of low permeability test in the sea,which can quickly evaluate the property parameters and characteristics of the reservoir.