公开(公告)号：US08555963B2

公开(公告)日：2013-10-15

申请号：US13300452

申请日：2011-11-18

申请人： Duane Bloom ,  Norman Bruce Moore ,  Rudolph Ernst Krueger, V

发明人： Duane Bloom ,  Norman Bruce Moore ,  Rudolph Ernst Krueger, V

IPC分类号： E21B23/01

CPC分类号： E21B23/10 ,  E21B4/18 ,  E21B17/1021 ,  E21B17/20 ,  E21B19/22 ,  E21B23/00 ,  E21B23/01 ,  E21B23/04 ,  E21B31/20 ,  E21B2023/008

摘要： A gripper assembly for anchoring a tool within a downhole passage and for possibly assisting movement of the tool within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the passage. The toes are displaced by the interaction of a driver slidable on the mandrel and a driver interaction element on the toes. In one embodiment, the toes are displaced by the interaction of rollers and ramps that are longitudinally movable with respect to one another. In another embodiment, the toes are displaced by the interaction of toggles that rotate with respect to the toes.

公开(公告)号：US08511377B2

公开(公告)日：2013-08-20

申请号：US12912610

申请日：2010-10-26

申请人： Garrett C. Casassa ,  Sarah B. Mitchell ,  Norman Bruce Moore

发明人： Garrett C. Casassa ,  Sarah B. Mitchell ,  Norman Bruce Moore

IPC分类号： E21B17/18 ,  E21B21/12

CPC分类号： E21B17/1057 ,  E21B17/1042 ,  E21B17/1078

摘要： A non-rotating downhole sleeve adapted for open hole drilling and/or casing centralization. The sleeve includes a tubular body made of hard plastic with integrally formed helical blades positioned around its outer surface and an inner surface configuration which allows drilling fluid circulation to form a non-rotating fluid bearing between the sleeve and the drill pipe or casing. The helical blades reduce sliding and rotating torque while drilling, with minimal obstruction to drilling fluid passing through the borehole between the blades.

摘要翻译： 适用于露天钻孔和/或套管集中的非旋转井下套筒。 套筒包括由硬塑料制成的管状体，其具有围绕其外表面定位的整体形成的螺旋叶片，以及允许钻井液循环在套筒和钻杆或套管之间形成非旋转流体轴承的内表面构造。 螺旋叶片在钻井时减少滑动和旋转扭矩，同时对穿过叶片之间的钻孔的钻井液的阻碍最小。

公开(公告)号：US20110114338A1

公开(公告)日：2011-05-19

申请号：US12912615

申请日：2010-10-26

申请人： Garrett C. Casassa ,  Sarah B. Mitchell ,  Norman Bruce Moore

发明人： Garrett C. Casassa ,  Sarah B. Mitchell ,  Norman Bruce Moore

IPC分类号： E21B17/10

CPC分类号： E21B17/1057 ,  E21B17/1042 ,  E21B17/1078

摘要： A non-rotating downhole sleeve adapted for casing centralization in a borehole. The sleeve includes a tubular body made of hard plastic with integrally formed helical blades positioned around its outer surface and an inner surface which allows drilling fluid to circulate to form a non-rotating fluid bearing between the sleeve and the casing. The tubular sleeve comprises a continuous non-hinged wall structure for surrounding the casing. The non-rotating centralizer sleeve reduces sliding and rotating torque at the surface while drilling the casing, for example, with minimal obstruction to drilling fluid passing between the casing and the surrounding borehole.

摘要翻译： 适用于在井眼中进行套管集中的非旋转井下套筒。 套筒包括由硬塑料制成的管状体，其具有围绕其外表面定位的整体形成的螺旋叶片和允许钻井流体循环以在套筒和套管之间形成非旋转流体轴承的内表面。 管状套筒包括用于围绕外壳的连续非铰链壁结构。 非旋转的扶正器套筒在钻套壳时减少了表面处的滑动和旋转扭矩，例如，在壳体和周围钻孔之间通过的钻井流体的阻碍最小。

公开(公告)号：US20110114307A1

公开(公告)日：2011-05-19

申请号：US12912610

申请日：2010-10-26

申请人： Garrett C. Casassa ,  Sarah B. Mitchell ,  Norman Bruce Moore

发明人： Garrett C. Casassa ,  Sarah B. Mitchell ,  Norman Bruce Moore

IPC分类号： E21B17/10 ,  E21B7/04

CPC分类号： E21B17/1057 ,  E21B17/1042 ,  E21B17/1078

摘要： A non-rotating downhole sleeve adapted for open hole drilling and/or casing centralization. The sleeve includes a tubular body made of hard plastic with integrally formed helical blades positioned around its outer surface and an inner surface configuration which allows drilling fluid circulation to form a non-rotating fluid bearing between the sleeve and the drill pipe or casing. The helical blades reduce sliding and rotating torque while drilling, with minimal obstruction to drilling fluid passing through the borehole between the blades. In one embodiment, improvements are provided during casing exit when drilling in open hole environments. In another embodiment, improvements are provided in the sleeve's resistance to compressive loading.

摘要翻译： 适用于露天钻孔和/或套管集中的非旋转井下套筒。 套筒包括由硬塑料制成的管状体，其具有围绕其外表面定位的整体形成的螺旋叶片和允许钻井液循环在套筒和钻杆或套管之间形成非旋转流体轴承的内表面构造。 螺旋叶片在钻井时减少滑动和旋转扭矩，同时对穿过叶片之间的钻孔的钻井液的阻碍最小。 在一个实施例中，当在露天环境中钻井时，在套管出口期间提供改进。 在另一个实施例中，套筒对压缩载荷的抵抗力提供​​了改进。

公开(公告)号：US07188681B2

公开(公告)日：2007-03-13

申请号：US11418546

申请日：2006-05-03

申请人： Duane Bloom ,  Norman Bruce Moore ,  Robert Levay

发明人： Duane Bloom ,  Norman Bruce Moore ,  Robert Levay

IPC分类号： E21B4/04

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

摘要： A hydraulically powered tractor includes an elongated body, two gripper assemblies, at least one pair of aft and forward propulsion cylinders and pistons, and a valve system. The valve system comprises an inlet control valve, a two-position propulsion control valve, a two-position gripper control valve, two cycle valves, and two pressure reduction valves. The inlet control valve spool includes a hydraulically controlled deactivation cam that locks the valve in a closed position, rendering the tractor non-operational. The propulsion control valve is piloted on both ends by fluid pressure in the gripper assemblies. The propulsion control valve controls the distribution of operating fluid to and from the propulsion cylinders, such that one cylinder performs a power stroke while the other cylinder performs a reset stroke. Each end of the gripper control valve is piloted by a source of high-pressure fluid selectively admitted by one of the cycle valves. The gripper control valve controls the distribution of operating fluid to and from the gripper assemblies. The cycle valves are spring-biased and piloted by fluid pressure in the propulsion cylinders, so that the gripper control valve shifts only after the cylinders complete their strokes. The pressure reduction valves limit the pressure within the gripper assemblies. These valves are spring-biased and piloted by the pressure of fluid flowing into the gripper assemblies. Some or all of the valves include centering grooves on the landings of the spools, which reduce leakage and produce more efficient operation. The propulsion control and gripper control valves include spring-assisted detents to prevent inadvertent shifting.

公开(公告)号：US07174974B2

公开(公告)日：2007-02-13

申请号：US11416001

申请日：2006-05-01

申请人： Duane Bloom ,  Norman Bruce Moore ,  Ronald E. Beaufort

发明人： Duane Bloom ,  Norman Bruce Moore ,  Ronald E. Beaufort

IPC分类号： E21B4/18

CPC分类号： E21B17/18 ,  E21B4/18 ,  E21B7/062 ,  E21B23/08 ,  E21B33/1208 ,  E21B33/127 ,  E21B44/005 ,  E21B2023/008 ,  E21B2041/0028

摘要： A downhole drilling tractor for moving within a borehole comprises a tractor body, two packerfeet, two aft propulsion cylinders, and two forward propulsion cylinders. The body comprises aft and forward shafts and a central control assembly. The packerfeet and propulsion cylinders are slidably engaged with the tractor body. Drilling fluid can be delivered to the packerfeet to cause the packerfeet to grip onto the borehole wall. Drilling fluid can be delivered to the propulsion cylinders to selectively provide downhole or uphole hydraulic thrust to the tractor body. The tractor receives drilling fluid from a drill string extending to the surface. A system of spool valves in the control assembly controls the distribution of drilling fluid to the packerfeet and cylinders. The valve positions are controlled by motors. A programmable electronic logic component on the tractor receives control signals from the surface and feedback signals from various sensors on the tool. The feedback signals may include pressure, position, and load signals. The logic component also generates and transmits command signals to the motors, to electronically sequence the valves. Advantageously, the logic component operates according to a control algorithm for intelligently sequencing the valves to control the speed, thrust, and direction of the tractor.

公开(公告)号：US07080701B2

公开(公告)日：2006-07-25

申请号：US11184309

申请日：2005-07-18

申请人： Duane Bloom ,  Norman Bruce Moore ,  Ronald E. Beaufort

发明人： Duane Bloom ,  Norman Bruce Moore ,  Ronald E. Beaufort

IPC分类号： E21B4/04

CPC分类号： E21B17/18 ,  E21B4/18 ,  E21B7/062 ,  E21B23/08 ,  E21B33/1208 ,  E21B33/127 ,  E21B44/005 ,  E21B2023/008 ,  E21B2041/0028

摘要： A downhole drilling tractor for moving within a borehole comprises a tractor body, two packerfeet, two aft propulsion cylinders, and two forward propulsion cylinders. The body comprises aft and forward shafts and a central control assembly. The packerfeet and propulsion cylinders are slidably engaged with the tractor body. Drilling fluid can be delivered to the packerfeet to cause the packerfeet to grip onto the borehole wall. Drilling fluid can be delivered to the propulsion cylinders to selectively provide downhole or uphole hydraulic thrust to the tractor body. The tractor receives drilling fluid from a drill string extending to the surface. A system of spool valves in the control assembly controls the distribution of drilling fluid to the packerfeet and cylinders. The valve positions are controlled by motors. A programmable electronic logic component on the tractor receives control signals from the surface and feedback signals from various sensors on the tool. The feedback signals may include pressure, position, and load signals. The logic component also generates and transmits command signals to the motors, to electronically sequence the valves. Advantageously, the logic component operates according to a control algorithm for intelligently sequencing the valves to control the speed, thrust, and direction of the tractor.

公开(公告)号：US07059417B2

公开(公告)日：2006-06-13

申请号：US10768434

申请日：2004-01-30

申请人： Norman Bruce Moore ,  Ronald E. Beaufort ,  Rudolph E. Krueger

发明人： Norman Bruce Moore ,  Ronald E. Beaufort ,  Rudolph E. Krueger

IPC分类号： E21B4/18

CPC分类号： E21B23/08 ,  E21B4/18 ,  E21B2023/008

摘要： A method and apparatus for propelling a tool having a body within a passage. The tool includes a gripper including at least a gripper portion which can assume a first position that engages an inner surface of the passage and limits relative movement of the gripper portion relative to the inner surface. The gripper portion can also assume a second position that permits substantially free relative movement between the gripper portion and the inner surface of the passage. The tool includes a propulsion assembly for selectively continuously moving the body of the tool with respect to the gripper portion while the gripper portion is in the first position. This allows the tool to move different types of equipment within the passage. Preferred uses for the tool include drilling, well completion, logging, retrieval, pipeline service, and communication line activities.

摘要翻译： 一种在通道内推动具有身体的工具的方法和装置。 所述工具包括夹持器，所述夹持器至少包括夹持器部分，所述夹持器部分可以呈现与所述通道的内表面接合的第一位置并且限制所述夹持器部分相对于所述内表面的相对运动。 夹持器部分也可以呈现第二位置，其允许夹持器部分和通道的内表面之间的基本上自由的相对运动。 该工具包括推进组件，用于在夹持器部分处于第一位置时相对于夹持器部分选择性地连续地移动工具的主体。 这允许工具在通道内移动不同类型的设备。 该工具的首选用途包括钻井，完井，测井，检索，管道服务和通讯线路活动。

公开(公告)号：US06758279B2

公开(公告)日：2004-07-06

申请号：US10624249

申请日：2003-07-22

申请人： Norman Bruce Moore ,  Ronald E. Beaufort ,  Rudolph E. Krueger

发明人： Norman Bruce Moore ,  Ronald E. Beaufort ,  Rudolph E. Krueger

IPC分类号： E21B418

CPC分类号： E21B23/08 ,  E21B4/18 ,  E21B2023/008

摘要： A method and apparatus for propelling a tool having a body within a passage. The tool includes a gripper including at least a gripper portion which can assume a first position that engages an inner surface of the passage and limits relative movement of the gripper portion relative to the inner surface. The gripper portion can also assume a second position that permits substantially free relative movement between the gripper portion and the inner surface of the passage. The tool includes a propulsion assembly for selectively continuously moving the body of the tool with respect to the gripper portion while the gripper portion is in the first position. This allows the tool to move different types of equipment within the passage. For example, the tool advantageously may be used in drilling processes to provide continuous force to a drill bit. This enables the drilling of extended horizontal boreholes. Other preferred uses for the tool include well completion, logging, retrieval, pipeline service, and communication line activities.

摘要翻译： 一种在通道内推动具有身体的工具的方法和装置。 所述工具包括夹持器，所述夹持器至少包括夹持器部分，所述夹持器部分可以呈现与所述通道的内表面接合的第一位置并且限制所述夹持器部分相对于所述内表面的相对运动。 夹持器部分也可以呈现第二位置，其允许夹持器部分和通道的内表面之间的基本上自由的相对运动。 该工具包括推进组件，用于在夹持器部分处于第一位置时相对于夹持器部分选择性地连续移动工具的主体。 这允许工具在通道内移动不同类型的设备。 例如，该工具有利地可用于钻孔工艺以向钻头提供连续的力。 这样可以钻出延伸的水平井眼。 该工具的其他优选用途包括完成，记录，检索，管道服务和通信线路活动。

公开(公告)号：US06431291B1

公开(公告)日：2002-08-13

申请号：US09881480

申请日：2001-06-14

申请人： Norman Bruce Moore ,  Phillip Mock

发明人： Norman Bruce Moore ,  Phillip Mock

IPC分类号： E21B33127

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

摘要： A packerfoot includes a bladder assembly comprising an elongated generally tubular inflatable bladder having ends bonded to generally rigid bladder attachment portions. The bladder includes end portions bonded to the bladder attachment portions and a central inflatable portion. The bladder comprises multiple layers of rubber, one or more of which are reinforced by fibers, preferably S-glass. At each end of the bladder, the layers terminate at different longitudinal positions, forming annular steps on the exterior surface of the bladder. Conforming annular steps are formed on the interior surface of the bladder attachment portions. The bladder ends are bonded to the bladder attachment portions such that the annular steps of the bladder conform to the annular steps of the bladder attachment portions. The total bond length of the bladder to the bladder attachment portions is greater than or equal to twice the length of the inflatable portion of the bladder. The ratio of the bond length at each end of the bladder to the thickness of the fiber-reinforced portion of the bladder is greater than 25, and preferably greater than 50. A plurality of toes is retained on the exterior of the bladder by retaining rings that enclose the ends of the toes. Compressible strain-relief rings are positioned between the retaining rings and the ends of the toes to reduce stress concentrations in the bladder caused by the toe ends during inflation of the bladder.

摘要翻译： 封隔器包括囊状组件，其包括细长的大致管状的可充气气囊，其端部与大致刚性的气囊连接部分相连。 气囊包括接合到气囊附接部分的端部和中心可充气部分。 囊包括多层橡胶，其中一层或多层由纤维增强，优选为S玻璃。 在膀胱的每个端部，这些层终止于不同的纵向位置，在膀胱的外表面上形成环形台阶。 在气囊附接部分的内表面上形成一个环形台阶。 气囊端部粘合到气囊附接部分，使得气囊的环形台阶符合气囊附接部分的环形台阶。 膀胱与膀胱连接部分的总粘合长度大于或等于膀胱的可充气部分的长度的两倍。 膀胱各端处的粘合长度与囊状纤维增强部分的厚度之比大于25°，优选大于50.多个脚趾通过保持环保持在囊的外部 包围脚趾的两端。 可压缩应变消除环位于保持环和脚趾末端之间，以减轻膀胱充气过程中脚趾端引起的膀胱压力集中。