三分量阵列感应共面线圈系在均匀地层中的响应特性分析  

Analysis of Response Characteristics of Coplanar Coil System of Tri-axial Array Induction Logging Tool in Homogeneous Formation

作　　者：张妙瑜[1,2] 郭新兴[1] 郭宝龙[2] 宋晓梅[3] 

机构地区：[1]西安石油大学电子工程学院,陕西西安710065 [2]西安电子科技大学智能控制与图像工程研究所,陕西西安710071 [3]川庆钻探工程有限公司钻采工程技术研究院长庆分院,陕西西安710018

出　　处：《西安石油大学学报（自然科学版）》2016年第5期88-93,共6页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金(编号:41474108);陕西省自然科学基础研究计划项目(编号:2013JM5011);2014年国家级大学生创新创业训练计划项目(编号:201410705033)

摘　　要：采用类似于共轴三线圈系的方法推导了共面三线圈系视电导率的解析解,对比共面线圈系与共轴线圈系Born几何因子响应特性,分析工作频率、主接收线圈位置和比例系数α对共面线圈系响应特性的影响。结果表明:仪器的工作频率越高,距发射线圈的距离越远,趋肤效应越严重;比例系数α越大,井眼影响和目的层影响的负贡献越大,但α无论多小,负的响应影响依然存在,这是目前三分量感应共面线圈系的固有缺陷。通过分析目前三分量共面线圈系的特点及其存在的问题,为今后共面线圈系的设计优化提供参考。An analytical solution of the apparent conductivity of three coplanar coil system is derived using the method similar to three coaxial coil system,the Born geometric factor response characteristic of the coplanar coil system is compared with that of coaxial coil system,and the influences of operating frequency of the coil system,the position of main receiving coil and coefficient α on the response characteristics of the coplanar coil system are analyzed. The results show that the higher the operating frequency and the farther the distance from the transmitter coil,the more serious the skin effect. The greater the coefficient,the greater the negative contribution of the borehole effect and the target layer,but their negative contribution still exists no matter how small is,which is an inherent defect of the coplanar coil system of tri-axial induction logging at present. The analysis of the characteristics and existing problems of the coplanar coil system of tri-axial array induction logging tool will provide a very good reference for the design and optimization of the coplanar coil system in the future.

关 键 词：三分量阵列感应测井 共面线圈系 均匀地层 

分 类 号：P631.811[天文地球—地质矿产勘探]