论文部分内容阅读
本文针对具有交联接收天线的随钻方位电阻率仪器在穿过不同地层模型时,对地层模型电阻率成像进行仿真.交联接收天线由极化方向正交的两个线圈组成.交联接收天线在仪器旋转一周内的电压响应可以分离出反映地层背景电阻率信息的响应分量和反映地层电阻率在不同方位上相对变化的响应分量.两种分量进行线性迭加后可以实现对地层电阻率的全方位成像.本文通过对具有交联接收线圈的随钻方位电阻率仪器在两层以及两层以上的复杂地层模型中的电阻率成像仿真,提供了实际仪器在地质导向应用的参考模板,对于现场解释具有重要指导作用.
In this paper, the resistivity imaging of the formation model is simulated when the logging-while-drilling resistivity instrument with cross-linked receiving antenna passes through different formation models. The cross-linked receiving antenna consists of two coils with orthogonal polarization directions The voltage response of the antenna within one revolution of the instrument can separate the response components that reflect the background resistivity information of the formation and the response components that reflect the relative change of the formation resistivity in different directions. After the two components are linearly superimposed, the formation resistivity Of the full-scale imaging.This paper through the resistivity imaging simulation of two-story and two-layer complex formation model with the cross-linked receiving coil while drilling resistivity instrument provides a reference template for the practical application of the instrument in geological guidance, For on-site interpretation has an important guiding role.