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1. 发明公开

EP0497420A1 Directional drilling methods and apparatus 失效
标题翻译：定向钻孔方法和设备
公开(公告)号：EP0497420A1
公开(公告)日：1992-08-05
申请号：EP92200232.4
申请日：1992-01-28
申请人： Anadrill International SA , SERVICES PETROLIERS SCHLUMBERGER
发明人： Prevedel, Bernhard , Askew, Warren , Eddison, Alan
IPC分类号： E21B7/06
CPC分类号： E21B7/067 , E21B7/068
摘要： In accordance with illustrative embodiments of the present invention, more accurate directional drilling is carried out by providing a downhole adjustable bent housing that is selectively operated to produce a bend angle in the drill string between a downhole motor and the drill bit, providing a near-bit stabilizer having a full gage condition and an undergage condition, and using the undergage condition of the stabilizer during sliding drilling, particularly when a bend angle is present, and the full gage condition of the stabilizer only when the drill string is rotated. Sensors are located above and below the bent housing to measure inclination and azimuth, and such measurements are telemetered to the surface during drilling for analysis.
摘要翻译：根据本发明的说明性实施例，通过提供井下可调节弯曲壳体来执行更精确的定向钻井，所述壳体被选择性地操作以在井下马达与钻头之间的钻柱中产生弯曲角度，具有满量表条件和行李状态的双稳定器，并且在滑动钻井过程中使用稳定器的行李状况，特别是当存在弯曲角度时，以及仅当钻柱旋转时稳定器的完整的应变条件。传感器位于弯曲外壳的上方和下方以测量倾角和方位角，并且在钻孔过程中将这些测量值传送到表面进行分析。

2. 发明公开

EP0456305A3 Hydraulic drilling jar 失效
标题翻译：液压钻机
公开(公告)号：EP0456305A3
公开(公告)日：1993-01-20
申请号：EP91201019.6
申请日：1991-04-27
申请人： Anadrill International SA , SERVICES PETROLIERS SCHLUMBERGER
发明人： Askew, Warren
IPC分类号： E21B31/113
CPC分类号： G05D7/0186 , E21B31/1135
摘要： A hydraulic drilling jar includes a mandrel (20) and a housing (21) movable between extended and retracted relative positions to deliver jarring blows to a struck object, a piston (69) on the mandrel that slides in a cylinder (70) in the housing, and a restriction assembly (75) on the housing having an internal seal (125) that engages an enlarged section (112) of the mandrel to enclose a high pressure, oil-filled chamber (77) between the piston and the restriction assembly, the restriction assembly including a pin check valve (120) that provides a very slow leakage of oil from the high pressure chamber while the enlarged section of the mandrel is engaged with the seal. An oil-filled compensating chamber (61) on the opposite side of the restriction means from the high pressure chamber has its pressure equalized with the pressure inside the mandrel by ports (44) through the wall of the mandrel.

3. 发明公开

EP0497422A1 Downhole adjustable stabilizer 失效
标题翻译：井下可调稳定器
公开(公告)号：EP0497422A1
公开(公告)日：1992-08-05
申请号：EP92200234.0
申请日：1992-01-28
申请人： Anadrill International SA , SERVICES PETROLIERS SCHLUMBERGER
发明人： Askew, Warren , Eddison, Alan
IPC分类号： E21B17/10
CPC分类号： E21B7/068 , E21B17/1014
摘要： In accordance with illustrative embodiments of this invention, a downhole adjustable stabilizer includes a sleeve having outwardly extending blades and mounted for limited rotation on a mandrel, vertically aligned sets of radially movable buttons mounted in bores in the blades, and longitudinal flats on the outer periphery of the mandrel that when radially aligned with the respective sets of buttons allows them to shift inward to positions where the stabilizer becomes undergage and can be tilted in the borehole. Some spring loaded buttons drag against the borehole wall to provide frictional restraint against rotation of the housing. The blades can each have an inclined side surface that causes the sleeve to be rotated to its position relative to the mandrel where the sets of buttons are retracted as the stabilizer slides downward in the borehole. In another embodiment a hydraulic delay is provided which restrains relative rotation in the direction which causes the buttons to extend to their full gauge diameter.
摘要翻译：根据本发明的说明性实施例，井下可调节稳定器包括：套筒，其具有向外延伸的叶片并且被安装用于在心轴上进行有限的旋转;垂直对齐的一组径向可移动按钮，其安装在叶片中的孔中;以及外周边上的纵向平面当它与相应的按钮组径向对准时，它们可以向内移动到稳定器变成行李的位置，并且可以在钻孔中倾斜。一些弹簧加载的按钮拖曳在井壁上以提供摩擦抑制壳体的旋转。每个叶片都可以具有倾斜的侧表面，该侧表面使得套筒旋转到相对于心轴的位置，在稳定器在井眼中向下滑动时，这些按钮组收缩。在另一个实施例中，提供了一种液压延迟器，该延迟器限制沿导致按钮延伸至其全量规直径的方向的相对旋转。

4. 发明公开

EP0497421A1 Downhole adjustable bent assemblies 失效
标题翻译： Untertage einstellbare Ablenkvorrichtung。
公开(公告)号：EP0497421A1
公开(公告)日：1992-08-05
申请号：EP92200233.2
申请日：1992-01-28
申请人： Anadrill International SA , SERVICES PETROLIERS SCHLUMBERGER
发明人： Askew, Warren
IPC分类号： E21B7/08
CPC分类号： E21B7/067
摘要： In accordance with an illustrative embodiment of the present invention, a downhole adjustable apparatus for creating a bend angle in a drill string includes a mandrel mounted for rotation between first and second angular positions within a housing, the mandrel being telescoped into the housing on an axis that is inclined with respect to the principle axial centerline of the housing, so that in one rotational position of the mandrel the housing is axially aligned with the centerline of a drilling motor and in another rotational position that is 180° from the initial position the housing is slightly inclined with respect to the centerline of such drilling motor to establish a bend angle. Further manipulation of the mandrel is used to return the members to their original positions for straight-ahead drilling.
摘要翻译：根据本发明的说明性实施例，用于在钻柱中产生弯曲角度的井下可调节装置包括安装用于在壳体内的第一和第二角位置之间旋转的心轴，心轴以轴线方式伸入壳体相对于壳体的主要轴向中心线倾斜，使得在心轴的一个旋转位置中，壳体与钻孔马达的中心线轴向对准，并且在与初始位置相距180°的另一旋转位置，壳体相对于这种钻孔电机的中心线稍微倾斜以建立弯曲角度。使用心轴的进一步操作将构件返回到其初始位置用于直行钻孔。

5. 发明公开

EP0456305A2 Hydraulic drilling jar 失效
标题翻译： Hydraulische Rutschschere。
公开(公告)号：EP0456305A2
公开(公告)日：1991-11-13
申请号：EP91201019.6
申请日：1991-04-27
申请人： Anadrill International SA , SERVICES PETROLIERS SCHLUMBERGER
发明人： Askew, Warren
IPC分类号： E21B31/113
CPC分类号： G05D7/0186 , E21B31/1135
摘要： A hydraulic drilling jar includes a mandrel (20) and a housing (21) movable between extended and retracted relative positions to deliver jarring blows to a struck object, a piston (69) on the mandrel that slides in a cylinder (70) in the housing, and a restriction assembly (75) on the housing having an internal seal (125) that engages an enlarged section (112) of the mandrel to enclose a high pressure, oil-filled chamber (77) between the piston and the restriction assembly, the restriction assembly including a pin check valve (120) that provides a very slow leakage of oil from the high pressure chamber while the enlarged section of the mandrel is engaged with the seal. An oil-filled compensating chamber (61) on the opposite side of the restriction means from the high pressure chamber has its pressure equalized with the pressure inside the mandrel by ports (44) through the wall of the mandrel.
摘要翻译：液压钻井罐包括心轴和壳体，其可在延伸和缩回的相对位置之间移动，以将冲击物体撞击到撞击物体上，心轴上的活塞在壳体中的气缸中滑动，并且壳体上的限制组件具有内部所述密封件与所述心轴的扩大部分接合以在所述活塞和所述限制组件之间包围高压，充满油的腔室，所述限制组件包括销止动阀，所述销止回阀提供来自所述高压室的非常缓慢的油泄漏，心轴的扩大部分与密封件接合。在限制装置的与高压室相反的一侧上的充油补偿室的压力与通过心轴的壁的端口内的心轴内的压力相等。

6. 发明授权

EP0497422B1 Downhole adjustable stabilizer 失效
标题翻译：井下可调稳定器
公开(公告)号：EP0497422B1
公开(公告)日：1996-06-12
申请号：EP92200234.0
申请日：1992-01-28
申请人： Anadrill International SA , SERVICES PETROLIERS SCHLUMBERGER
发明人： Askew, Warren , Eddison, Alan
IPC分类号： E21B17/10
CPC分类号： E21B7/068 , E21B17/1014

7. 发明授权

EP0456305B1 Hydraulic drilling jar 失效
标题翻译：液压震击
公开(公告)号：EP0456305B1
公开(公告)日：1996-02-28
申请号：EP91201019.6
申请日：1991-04-27
申请人： Anadrill International SA , SERVICES PETROLIERS SCHLUMBERGER
发明人： Askew, Warren
IPC分类号： E21B31/113
CPC分类号： G05D7/0186 , E21B31/1135

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