基于ICCG方法的随钻方位电磁波测井响应模拟研究  

Numerical Study on the Response of Azimuth Electromagnetic Wave Resistivity While Drilling Based on the ICCG Method

作　　者：谢关宝[1,2] 杨震 赵文杰[1] 

机构地区：[1]中石化石油工程技术研究院,北京100101 [2]中国石油大学(北京),北京102249 [3]中石化胜利油田博士后工作站,山东东营257017

出　　处：《测井技术》2015年第1期27-31,共5页Well Logging Technology

基　　金：国家重大专项大型油气田及煤层气开发(2011ZX05014-001);国家自然科学基金(41172130)联合资助

摘　　要：采用改进的不完全乔尔斯基共轭梯度法(ICCG),计算了方位电磁波电阻率仪器响应以及传统的电磁波电阻率仪器的响应,分析了井斜以及不同接收线圈倾角对水平层状介质响应的影响,讨论了接收线圈与仪器轴夹角的选择依据。实际计算结果表明,随钻方位电磁波仪器与传统的电磁波电阻率仪器相比,能分辨出地层的方位信息,对地层界面有更好的灵敏性,方位电磁波电阻率仪器能更好地识别地层界面和进行地质导向。Through the improved conjugate gradient method （ICCG）, the resistivity responses of the azimuth and routine electromagnetic instruments have been analyzed. Also, many factors have been explored that the well deviation and different receiver coil dips affect the response of the horizontal bedded mediums. Then we analyze the receiving coil and instrument axis angle selection basis. The computed results indicate that compared with the routine electromagnetic resistivity instruments while drilling tool, the azimuth electromagnetic resistivity logging tool can be used to investigate the azimuth information of the strata, and has high sensitivity on the formation boundary. Therefore, the azimuth electromagnetic resistivity logging tool can easily identify the formation boundary and do geo-steering while drilling.

关 键 词：随钻方位电磁波测井 共轭梯度法 方位电磁波 倾斜线圈 地质导向 数值模拟 

分 类 号：P631.811[天文地球—地质矿产勘探]