公开(公告)号：US5794703A

公开(公告)日：1998-08-18

申请号：US675176

申请日：1996-07-03

申请人： Kenneth R. Newman ,  Nelson A. Haver ,  David J. Speller

发明人： Kenneth R. Newman ,  Nelson A. Haver ,  David J. Speller

IPC分类号： E21B4/18 ,  E21B23/00 ,  E21B23/04 ,  E21B23/08

CPC分类号： E21B4/18 ,  E21B23/00 ,  E21B23/04 ,  E21B2023/008

摘要： A new wellbore tractor system has been invented which, in one aspect has at least two slip units for alternately and releasably anchoring the system within a wellbore or within a tubular member and at least two movement units for moving an item in a wellbore, such as, but not limited to cable, tubing, casing, a tubular string or coiled tubing. In one aspect power strokes of the movement units overlap in time so that the system provides continuous motion. In another aspect a wellbore tractor system has been invented for moving an item through a wellbore, the wellbore extending from earth surface to an underground location, the system comprising a body connected to the item, first setting means on the body for selectively and releasably anchoring the system in a wellbore, first movement apparatus on the body for moving the body and the item, the first movement means having a first power stroke, and the wellbore tractor system for moving the item through the wellbore at a speed of at least 100 feet per minute. In another aspect such a system also has second setting apparatus on the body for selectively and releasably anchoring the system in the wellbore, the second setting apparatus spaced apart from the first setting apparatus, and second movement apparatus on the body providing a second power stroke for moving the body and the item, the second movement apparatus spaced apart from the first movement apparatus.

摘要翻译： 已经发明了一种新的井眼拖拉机系统，其一方面具有至少两个滑动单元，用于将系统交替地和可释放地锚定在井筒内或管状构件内，以及用于将物品移动到井眼中的至少两个运动单元，例如 但不限于电缆，管道，套管，管状管柱或连续管道。 在一个方面，运动单元的功率冲程在时间上重叠，使得系统提供连续运动。 在另一方面，已经发明了一种井筒拖拉机系统，用于通过井眼移动物品，井筒从地面延伸到地下位置，该系统包括连接到物品的主体，主体上的第一设定装置用于选择性地和可释放地锚定 在井身中的系统，用于移动身体和物品的身体上的第一运动装置，具有第一动力冲程的第一运动装置和用于以至少100英尺的速度移动物品通过井筒的井眼拖拉机系统 每分钟。 在另一方面，这样的系统还具有在主体上的第二设定装置，用于选择性地和可释放地将系统固定在井眼中，第二设定装置与第一设定装置间隔开，第二运动装置在主体上提供第二动力冲程， 移动身体和物品，第二移动装置与第一移动装置间隔开。

公开(公告)号：US6089323A

公开(公告)日：2000-07-18

申请号：US318502

申请日：1999-05-25

申请人： Kenneth R. Newman ,  Nelson A. Haver

发明人： Kenneth R. Newman ,  Nelson A. Haver

IPC分类号： E21B4/18 ,  E21B23/00 ,  E21B23/04

CPC分类号： E21B4/18 ,  E21B23/00 ,  E21B23/04 ,  E21B2023/008

摘要： A tractor system has been invented which, in certain embodiments, includes a body connected to the item, first setting means on the body for selectively and releasably anchoring the system in a bore, first movement means having a top and a bottom, the first movement means on the body for moving the body and the item, the first movement means having a first power stroke, and the tractor system for moving the item through the bore at a speed of at least 10 feet per minute.

摘要翻译： 已经发明了一种拖拉机系统，其在某些实施例中包括连接到物品的主体，主体上的第一设置装置用于选择性地和可释放地将系统固定在孔中，具有顶部和底部的第一移动装置，第一移动 在身体上用于移动身体和物品的装置，第一移动装置具有第一动力冲程，以及拖拉机系统，用于以至少10英尺/分钟的速度移动物品穿过孔。

公开(公告)号：US6082461A

公开(公告)日：2000-07-04

申请号：US103868

申请日：1998-06-24

申请人： Kenneth R. Newman ,  Nelson A. Haver

发明人： Kenneth R. Newman ,  Nelson A. Haver

IPC分类号： E21B4/18 ,  E21B23/00 ,  E21B23/04 ,  E21B23/08

CPC分类号： E21B4/18 ,  E21B23/00 ,  E21B23/04 ,  E21B2023/008

摘要： A tractor system for moving an item through a wellbore has been invented with a central mandrel interconnected with the item, first setting means about the central mandrel for selectively and releasably anchoring the system in a wellbore, the central mandrel having a top, and a bottom, and a first power thread therein, the first setting means having a first follower pin for engaging the first power thread to power the first setting means to set the first setting means against an inner wall of the bore. In one aspect, the tractor system is for moving the item through the bore at a speed of at least 10 feet per minute. In one aspect, the tractor system has second setting means on the central mandrel for selectively and releasably anchoring the system in the bore, the second setting means spaced apart from the first setting means, and the central mandrel having a second power thread therein and a second retract thread therein, the second retract thread in communication with the second power thread, and the second setting means having a second follower pin for engaging the second power thread to power the second setting means to set the second setting means against the inner wall of the bore.

摘要翻译： 已经发明了一种通过井眼移动物品的牵引器系统，其具有与物品相互连接的中心心轴，围绕中心心轴的第一设置装置，用于选择性地和可释放地将系统锚定在井眼中，中心心轴具有顶部和底部 和第一动力螺纹，所述第一设定装置具有第一从动销，用于接合所述第一动力螺纹以对所述第一设定装置供能，以将所述第一设定装置设置在所述孔的内壁上。 在一个方面，拖拉机系统用于以至少10英尺/分钟的速度移动物品通过孔。 在一个方面，拖拉机系统在中心心轴上具有第二设定装置，用于选择性地和可释放地将系统固定在孔中，第二设定装置与第一设定装置间隔开，并且中心心轴具有第二动力螺纹， 第二回缩螺纹与第二动力螺纹连通，第二设定装置具有第二从动销，用于与第二动力螺纹接合以对第二设定装置供电，以将第二设定装置设置在第二向下的内壁 孔。