公开(公告)号：US08862436B2

公开(公告)日：2014-10-14

申请号：US12145376

申请日：2008-06-24

Applicant: Robello Samuel

Inventor： Robello Samuel

IPC: G06F17/50 ,  G06F17/11 ,  G06G7/48

CPC classification number: E21B7/04

Abstract: Systems and methods for modeling wellbore trajectories using curvature bridging functions. The systems and methods use a clothoid spiral as a bridging curve in the transition zones to reduce tubular stresses/failures in the design of multilateral well paths and extended reach well paths.

Abstract translation: 使用曲率桥接函数建立井眼轨迹的系统和方法。 系统和方法使用回旋螺旋作为过渡区域中的桥接曲线，以减少多边井路径和延伸到达井道设计中的管状应力/故障。

公开(公告)号：US20140158426A1

公开(公告)日：2014-06-12

申请号：US14236057

申请日：2012-07-16

Applicant: Richard Thomas Hay ,  Robello Samuel

Inventor： Richard Thomas Hay ,  Robello Samuel

IPC: E21B4/02 ,  F04C2/107 ,  F04C14/20

CPC classification number: E21B4/02 ,  F04C2/1071 ,  F04C14/20

Abstract: A downhole drilling motor for well drilling operations includes a tubular housing and a stator disposed in the tubular housing. The stator defines an internal cavity passing therethrough, wherein the stator includes one or more lobes defining at least a portion of the cavity. A rotor is operatively positioned in the internal cavity to cooperate with the one or more lobes of the stator. At least a portion of the stator or of the rotor comprises a memory material adapted to expand or contract when heat is applied by a localized heating module to the memory material. A fluid escape gap between the rotor and stator is adjusted by applying heat to the rotor and/or stator. At least one controller is adapted to receive input data and provide output signals increasing and/or decreasing electrical current applied to the at least one localized heating module.

Abstract translation: 用于钻井操作的井下钻井电机包括管状壳体和设置在管状壳体中的定子。 定子限定穿过其中的内部空腔，其中定子包括限定空腔的至少一部分的一个或多个凸角。 转子可操作地定位在内腔中以与定子的一个或多个凸起配合。 定子或转子的至少一部分包括适于在通过局部加热模块向存储器材料施加热量时膨胀或收缩的记忆材料。 通过向转子和/或定子施加热量来调节转子和定子之间的流体逸出间隙。 至少一个控制器适于接收输入数据并提供增加和/或减小施加到至少一个局部加热模块的电流的输出信号。