摘要
数值模式匹配（NMM）法是计算轴对称地层中感应测井响应的快速有效方法。总结感应测井中NMM法的地层模型和定解条件以及其基本原理,重点讨论了该方法的径向网格剖分和基函数。最后论述了NMM法在高对比度,低泥浆电阻率,尤其是海水井的复杂测井情况下存在问题及改进措施,并验证了改进措施的有效性。
Numerical model matching(NMM)method is an effective way to compute induction logging response of axial symmetry in formation.Summarizing the model, definite condition and basic principle of NMM, the paper stressed on the radial grid subdivision and primary function.In the end the existing problems and improvement countermeasures of NMM are discussed when it is used in high contrast, low mud resistivity conditions, especially in seawater wells. Validity of the countermeasures is verified.
出处
《国外测井技术》
2011年第1期15-19,3,共5页
World Well Logging Technology
关键词
数值模式匹配
感应测井
网格剖分
对比度
numerical model matching
induction logging
grid subdivision
contrast
