摘要
水平井技术已经成为油气勘探开发的有效手段,但也给测井等工程技术带来了新的难题。地层电阻率是影响油气评价的重要参数,感应测井是确定水平井中地层电阻率的比较常用的方法。文章基于三维数值模式匹配法,通过数值分析,研究了水平井仪器偏心时地层厚度、围岩对双感应测井响应的影响,并对仪器偏心时双感应层厚和围岩校正提出了简洁的校正思路。这些可为水平井解释工作中消除感应测井的仪器偏心影响提供一定的理论参考。
Horizontal wellbore logging has been playing an important role in oil exploration and exploitation,but it also bring new problems to well logging.Formation resistivity is a very important parameter of log interpretation, and induction logging is a normal logging technology to measure formation resistivity in lateral well.In this paper the influence of dual induction logging tool response in horizontal well brought by formation thickness and surrounding bed with eccentric tool is analyzed by the 3D Numerical Mode-Matching(NMM),and a concise method of correcting of side bed and formation thickness with various tool eccentricity is provided.Our researches can be useful for correcting the responses of induction log brought by eccentricity in lateral well logging interpretation.
出处
《石油仪器》
2011年第6期1-4,7,共4页
Petroleum Instruments
基金
国家自然科学基金项目"伪随机扩频脉冲在地球介质中的传播特性研究"(No.40774073)资助
关键词
水平井
感应测井
偏心
数值模拟
测井响应
lateral well
induction logging
eccentricity
numerical simulation
log response
