The formation natural deflecting law and force are the basic geological foundation for the well trajectory control in directional wells and deflecting-protection in vertical wells.
地层自然造斜规律和造斜能力是定向井井眼轨迹控制和直井防斜打直的基本地质依据。
2
The influencing regular pattern of depths of deflection point, line slope and casing dimension on horizontal force of directional wellhead is analyzed by case calculation.