公开(公告)号：US20120228028A1

公开(公告)日：2012-09-13

申请号：US13041863

申请日：2011-03-07

申请人： WILLIAM EVANS TURNER ,  MARK HUTCHINSON ,  DIRK BOSMAN ,  MARK ELLSWORTH WASSELL ,  CARL ALLISON PERRY ,  MARTIN E. COBERN

发明人： WILLIAM EVANS TURNER ,  MARK HUTCHINSON ,  DIRK BOSMAN ,  MARK ELLSWORTH WASSELL ,  CARL ALLISON PERRY ,  MARTIN E. COBERN

IPC分类号： E21B7/24

CPC分类号： E21B17/07 ,  E21B17/10 ,  E21B44/00

摘要： An apparatus and method for damping vibration, especially torsional vibration due to stick-slip, in a drill string, Sensors measure the instantaneous angular velocity of the drill string at one or more locations along the length of the drill string. One or more vibration damping modules are also spaced along the length of the drill string. When torsional vibration above a threshold is detected, the damping module imposes a reverse torque on the drill that dampens the torsional vibration. The reverse torque can be created by imparting a frictional resistance to the rotation of the drill string. The frictional resistance can be created externally, by extending friction pads from the damping module so that they contact the bore hole wall and drag along the bore hole as the drill string rotates, or internally by anchoring a housing mounted on the drill string to the wall of the bore hole and then imposing frictional resistance on a fluid, such as a magnetorheological fluid, flowing within the drill string.

摘要翻译： 传感器测量在钻柱长度的一个或多个位置处的钻柱的瞬时角速度的装置和方法，其特征在于，用于在钻柱中阻尼振动，特别是由于滑动导致的扭转振动。 一个或多个减震模块也沿着钻柱的长度间隔开。 当检测到超过阈值的扭转振动时，阻尼模块在钻头上施加扭转扭转扭矩的扭矩。 可以通过对钻柱的旋转施加摩擦阻力来产生反向扭矩。 摩擦阻力可以通过从阻尼模块延伸摩擦垫从外部产生，使得它们与钻孔壁接触并随着钻柱旋转而沿钻孔拖动，或者通过将安装在钻柱上的壳体锚固在壁上 然后对在钻柱内流动的流体（例如磁流变流体）施加摩擦阻力。

公开(公告)号：US09458679B2

公开(公告)日：2016-10-04

申请号：US13041863

申请日：2011-03-07

申请人： William Evans Turner ,  Mark Hutchinson ,  Dirk Bosman ,  Mark Ellsworth Wassell ,  Carl Allison Perry ,  Martin E. Cobern

发明人： William Evans Turner ,  Mark Hutchinson ,  Dirk Bosman ,  Mark Ellsworth Wassell ,  Carl Allison Perry ,  Martin E. Cobern

IPC分类号： E21B17/07 ,  E21B44/00 ,  E21B17/10

CPC分类号： E21B17/07 ,  E21B17/10 ,  E21B44/00

摘要： An apparatus and method for damping vibration, especially torsional vibration due to stick-slip, in a drill string, Sensors measure the instantaneous angular velocity of the drill string at one or more locations along the length of the drill string. One or more vibration damping modules are also spaced along the length of the drill string. When torsional vibration above a threshold is detected, the damping module imposes a reverse torque on the drill that dampens the torsional vibration. The reverse torque can be created by imparting a frictional resistance to the rotation of the drill string. The frictional resistance can be created externally, by extending friction pads from the damping module so that they contact the bore hole wall and drag along the bore hole as the drill string rotates, or internally by anchoring a housing mounted on the drill string to the wall of the bore hole and then imposing frictional resistance on a fluid, such as a magnetorheological fluid, flowing within the drill string.

摘要翻译： 传感器测量在钻柱长度的一个或多个位置处的钻柱的瞬时角速度的装置和方法，其特征在于，用于在钻柱中阻尼振动，特别是由于滑动导致的扭转振动。 一个或多个减震模块也沿着钻柱的长度间隔开。 当检测到超过阈值的扭转振动时，阻尼模块在钻头上施加扭转扭转扭矩的扭矩。 可以通过对钻柱的旋转施加摩擦阻力来产生反向扭矩。 摩擦阻力可以通过从阻尼模块延伸摩擦垫从外部产生，使得它们与钻孔壁接触并随着钻柱旋转而沿钻孔拖动，或者通过将安装在钻柱上的壳体锚固在壁上 然后对在钻柱内流动的流体（例如磁流变流体）施加摩擦阻力。