地层测试器在渗透率各向异性地层中响应的数值模拟  

Numerical simulation of response for wireline formation tester in permeability anisotropic formation

作　　者：周艳敏[1] 陶果[1] 谷宁[1] 李新玉[2] 

机构地区：[1]中国石油大学CNPC测井重点实验室,北京102249 [2]长江大学计算机科学学院,湖北荆州434102

出　　处：《中国石油大学学报（自然科学版）》2009年第3期71-75,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(50674098);国家863项目(2006AA06Z207);国家“973”基础研究项目(2007CB209601)

摘　　要：用三维有限元方法模拟油水两相情况下的渗透率各向异性地层地层测试器的响应规律,并对地层测试响应进行物理试验测试,以验证模拟结果的可靠性。结果表明:模拟结果与实验结果吻合较好;地层流体的流动形态随着流动时间的增加而变化,渗透率各向异性比越大,单探针压降和多探针的时间延迟越大。The response laws of wireline formation tester （WFT） in the permeability anisotropic formation were simulated for oil-water two phase by 3D finite element method. And the physical experiment was carried out in order to check the simulated results. The results show that the simulated results agree well with the experimental data. The fluid flow pattern in the reservoir changes with the flow time. The bigger the permeability anisotropy ratio, the bigger the pressure dropdown of singleprobe WFT and the time delay of multi-probe WFT.

关 键 词：电缆地层测试 渗透率各向异性 数值模拟 

分 类 号：P631[天文地球—地质矿产勘探]