1·According to constitutive equations of rock anisot roipy, the relation between deviation of stratum and well inclination in directional drilling has been studied with the finite element method.
从岩石各向导性的本构方程出发，用有限单元法研究了地层倾角与定向钻井井斜之间的关系。
2·The related theory that the drilling tool is affected by the inclination of the well had proved the fact: if the Angle of the well is greater than a threshold, there will be se.
井斜对钻具的影响有关理论已经证明，如果井斜角大于某一临界值，在狗腿处旋转钻杆将会引起严重的疲劳破坏。
3·The measurement of the inclination angle and the azimuth angle of a well in the drilling process is important.
钻探过程中钻井的倾斜角和方位角的测量至关重要。
4·Advanced sensors measure inclination, azimuthal gamma ray, whirl, stick-slip, vibration, and other drilling parameters for early detection of formation and borehole dynamic changes.
先进的近钻头传感器可实时测量地层早期参数和井眼动态变化系列参数，比如倾斜度、伽马射线方位角、转角度、粘滑、振动及其他钻井参数。