气层中电缆地层测试器探针优选  

Probe Optimization of Wireline Formation Tester in Gas Reservoir

作　　者：高永德 樊兆亚 吴进波 孙殿强 饶广 张涛 GAO Yongde;FAN Zhaoya;WU Jinbo;SUN Dianqiang;RAO Guang;ZHANG Tao(Zhanjiang Branch,China National Offshore Oil Corporation,ZhanJiang,Guangdong 524000,China;Schlumberger,Beijing 100020,China)

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524000 [2]斯伦贝谢中国公司,北京100020

出　　处：《测井技术》2022年第4期404-409,共6页Well Logging Technology

摘　　要：电缆地层测试作业时,探针是连接电缆地层测试器与地层之间的门户,探针的选择决定作业成功率与作业时效。通过数值模拟方法,定量分析不同探针的作业效率和影响作业效率的因素,同时给出气层条件下泵抽取样时不同探针的推荐使用标准,该标准根据储层渗透率进一步量化了探针的优选规则。经过大量数据分析,创新性地提出了不同探针在气层条件下的泵抽时间公式,应用该公式可以快速实现各种探针在不同的渗透率、孔隙度、侵入深度以及不同滤液污染率条件下泵抽时间的预判。通过在珠江口盆地文昌凹陷多口井的应用表明,该探针优选方法提高了电缆地层测试的作业时效。During the operation of wireline formation tester(WFT),the probe is the gateway between WFT and formation.The selection of probe directly determines the operation success rate and operation effectiveness.Through numerical simulation analysis,the operation efficiency of different probes and the reasons affecting the operation efficiency are quantitatively analyzed.Meanwhile,the recommended application standard of different probes under the condition of gas reservoir are proposed.This standard quantifies the optimal selection rules of probes according to reservoir permeability.The pumping time formula of different probes under the condition of gas reservoir is innovatively proposed,which can quickly predict the pumping time of different probes under different permeability,porosity,invasion depth and mud invasion rate.The above results have been applied and verified in the WFT of multiple wells in Wenchang sag,Pearl River Mouth basin,which improved the operation efficiency.

关 键 词：电缆地层测试 探针优选 数值模拟 泵抽时间预测 

分 类 号：P631.84[天文地球—地质矿产勘探]