水平井钻进过程中, 地层边界的准确预测对地质导向决策至关重要. 但水平井测井环境复杂,
随钻方位电磁波测井响应不直观, 储层性质, 地层界面等信息的精确, 定量评价困难 …

In this paper, a new pseudoanalytical axial mode-matching formulation is introduced to
provide a flexible technique for analyzing direction well-logging tools in anisotropic …

An analytic algorithm is developed to solve the electromagnetic (EM) field excited by
orthogonal magnetic dipoles in the multilayered biaxial anisotropic medium. It allows …

In electromagnetic (EM) well logging for petroleum exploration, off-centered tools within a
noncircular borehole and invasion zones in multilayered media represent a challenging 3-D …

During the drilling process, accurate determination of the approaching bed boundary is
critical to real-time geosteering decision making. However, due to the complex logging …

In this paper, we present a set of novel and stable formulations to calculate the response of
logging tools with horizontal-coil antennas in an eccentric borehole straddling cylindrically …

A set of compact and stable formulations is presented to calculate the response of logging
tools employing tilted-coil antennas in anisotropic concentrically cylindrical multilayered …

A nonoverflow representation of the electromagnetic (EM) field radiated by dipole sources in
the cylindrical multilayered anisotropic media is presented. The sources include both …

从麦克斯韦方程组出发推导出三轴磁偶极子源在频率-波数域中的解析表达式,
结合归一化广义反射系数, 求解井眼内磁场多分量. 通过矢量叠加得到任意方向发射 …

Directional electromagnetic (EM) logging while drilling (LWD) tools have been widely used
in well navigation for its azimuthal sensitivity and deep depth of detection (DOD). In this …