公开(公告)号：US11808153B2

公开(公告)日：2023-11-07

申请号：US18048336

申请日：2022-10-20

Applicant: Abaco Drilling Technologies LLC

Inventor： Peter Thomas Cariveau ,  Timothy Mark Miller ,  Jing Lu

IPC: F01C1/10 ,  E21B4/02 ,  F04C13/00 ,  F04C2/107

CPC classification number: F01C1/101 ,  E21B4/02 ,  F04C2/1075 ,  F04C13/008 ,  F04C2240/10 ,  F04C2250/30

Abstract: Tapered stator designs are engineered in a positive displacement motor (PDM) power section to relieve stator stress concentrations at the lower (downhole) end of the power section in the presence of rotor tilt. A contoured stress relief (i.e. a taper) is provided in the stator to compensate for rotor tilt, where the taper is preferably more aggressive at the lower end of the stator near the bit.

公开(公告)号：US09896885B2

公开(公告)日：2018-02-20

申请号：US14965158

申请日：2015-12-10

Applicant: Baker Hughes Incorporated

Inventor： Christopher W. Blake ,  Carsten Voss

IPC: F04C2/107 ,  F04C18/107 ,  E21B4/02 ,  F01C1/10 ,  C23C16/44

CPC classification number: E21B4/02 ,  C23C16/44 ,  F01C1/101 ,  F04C2/1073 ,  F04C2/1075 ,  F04C18/1075 ,  Y10T29/49242

Abstract: A hydraulic tool includes a stator, a rotor, and a removable coating. At least one of the stator and the rotor comprises a resilient material. The removable coating has a thickness selected to compensate for expected swelling of the resilient material or an expected contraction of a clearance between the rotor and the stator based on thermal expansion. The removable coating is disposed on a surface of at least one of the rotor and the stator, and the removable coating is formulated to be removed during operation of the hydraulic tool. A method of operating a hydraulic tool includes passing a fluid through the hydraulic tool during rotation of the rotor within the stator and removing at least a portion of the removable coating responsive to rotation of the rotor within the stator as a volume of the resilient material increases responsive to contact with the fluid passing through the hydraulic fluid.

公开(公告)号：US20150125329A1

公开(公告)日：2015-05-07

申请号：US14564324

申请日：2014-12-09

Applicant: National Oilwell Varco, L.P.

Inventor： Michael J. Guidry, JR.

IPC: F01C1/10 ,  F04C2/107

CPC classification number: F01C1/101 ,  F01C19/005 ,  F04C2/1073 ,  F04C2/1075 ,  F04C13/001 ,  F04C15/0019 ,  F04C2210/24

Abstract: A progressing cavity pump/motor includes a stator (12) having a metal interior surface (14) and one or more spiraling internal lobes (16). The rotor (18) has a metal exterior surface (20) and one or more spiraling external lobes (22) for cooperating with the stator to form progressing cavities between the stator and the rotor during rotation of the rotor. At least one of the stator interior surface and the rotor exterior surface include a plurality of spaced grooves (30) in the respective surface, such that fluid flowing to a gap between the stator and the rotor is disrupted by the spaced grooves to reduce fluid leakage between the stator and the rotor.

Abstract translation: 进一步的腔泵/电动机包括具有金属内表面（14）和一个或多个螺旋形内部凸角（16）的定子（12）。 转子（18）具有金属外表面（20）和一个或多个螺旋形外凸片（22），用于与定子配合，以在转子旋转期间在定子和转子之间形成进一步的空腔。 定子内表面和转子外表面中的至少一个在相应表面中包括多个间隔开的凹槽（30），使得流到定子和转子之间的间隙的流体被间隔开的凹槽破坏以减少流体泄漏 在定子和转子之间。

公开(公告)号：US3999901A

公开(公告)日：1976-12-28

申请号：US415754

申请日：1973-11-14

Applicant: John E. Tschirky

Inventor： John E. Tschirky

IPC: E21B4/02 ,  F01C1/10

CPC classification number: E21B4/02 ,  F01C1/101

Abstract: This invention relates to progressing cavity fluid motors with multiple stator elements connected in series to provide a fluid passageway from the input of the initial stator of the series to the output of the terminal stator of the series; the rotor elements in each stator are connected together for simultaneous rotation.

Abstract translation: 本发明涉及具有串联连接的多个定子元件的空腔流体马达，以提供从串联的初始定子的输入到串联的端子定子的输出的流体通道; 每个定子中的转子元件连接在一起用于同时旋转。

公开(公告)号：US3912426A

公开(公告)日：1975-10-14

申请号：US43354074

申请日：1974-01-15

Applicant: SMITH INTERNATIONAL

Inventor： TSCHIRKY JOHN E

IPC: E21B4/02 ,  F01C1/10 ,  F04C2/107 ,  F01C5/04 ,  F03C3/00

CPC classification number: F04C2/1075 ,  E21B4/02 ,  F01C1/101

Abstract: This invention relates to progressing cavity fluid motors with multiple segmented stator elements connected in series to provide a fluid passageway from the input to initial stator of the series to the terminal stator of the series; the rotor elements in each stator are connected together for simultaneous rotation.

公开(公告)号：US09540933B2

公开(公告)日：2017-01-10

申请号：US14378861

申请日：2013-02-13

Applicant: National Oilwell Varco, L.P.

Inventor： Andrew Morris

IPC: F01C1/10 ,  F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F01C21/10 ,  F04C2/107 ,  F01C5/00 ,  F01C5/02 ,  B23P15/00 ,  F04C18/107 ,  F04B39/14

CPC classification number: F01C21/106 ,  B23P15/00 ,  F01C1/101 ,  F01C5/00 ,  F01C5/02 ,  F04B39/14 ,  F04C2/1071 ,  F04C2/1073 ,  F04C2/1075 ,  F04C18/1075 ,  F04C2240/10 ,  F04C2240/802 ,  Y10T29/49272

Abstract: A stator for a progressive cavity pump or motor includes a stator housing having a longitudinal axis. In addition, the stator includes a stator insert of a material moulded within the housing. The stator housing includes an outer tube having an inner surface. The stator housing also includes a plurality of framework elements disposed on the inner surface of the outer tube. Further, the stator housing includes at least one recess in the inner surface of the outer tube. The conjunction of the framework elements and the at least one recess define a plurality of chambers receiving insert material therein whereby the insert material is mechanically fixed axially, radially and torsionally within the outer tube.

Abstract translation: 用于渐进式泵或电动机的定子包括具有纵向轴线的定子壳体。 此外，定子包括在壳体内模制的材料的定子插入件。 定子壳体包括具有内表面的外管。 定子壳体还包括设置在外管的内表面上的多个框架元件。 此外，定子壳体包括在外管的内表面中的至少一个凹部。 框架元件和至少一个凹部的结合限定了在其中容纳插入材料的多个室，由此插入材料在外管内轴向，径向和扭转地机械地固定。

公开(公告)号：US08888419B2

公开(公告)日：2014-11-18

申请号：US12596498

申请日：2008-04-11

Applicant: Wessley Jack Wilmot

Inventor： Wessley Jack Wilmot

IPC: B23C3/00 ,  B24B39/02 ,  B23Q5/04 ,  B23C3/32 ,  B24B5/40 ,  B24B33/02 ,  B24B41/04

CPC classification number: B23C3/32 ,  B23B41/12 ,  B23B2215/72 ,  B23B2220/123 ,  B23C2270/18 ,  B23Q5/045 ,  B24B5/40 ,  B24B33/02 ,  B24B39/02 ,  B24B41/04 ,  E21B4/02 ,  F01C1/101 ,  F01C5/04 ,  F04C2/107 ,  F04C2/1071 ,  F04C2/1075 ,  F04C14/02 ,  F04C2240/10 ,  F04C2250/30 ,  Y10T408/03 ,  Y10T409/300616 ,  Y10T409/303808 ,  Y10T409/304424 ,  Y10T409/30448

Abstract: A tool (100) for working the internal bore of a tube comprises a motor (10), having a housing with a rotary output; a housing sleeve (14a) and shaft (22); a first bearing housing (16), having a rotatably journalled first spindle (102), mounted on the housing sleeve; and an end sleeve and shaft connected to a tool head. The motor output drives, along a common axis (1), the housing shaft, first bearing spindle, end shaft and tool head. A change mechanism (56,58) is in the tool head to change direction of said drive to transverse said common axis. An output (60) is adapted to receive a tool bit. Gauge means (18,18′) is disposed on said tool head and is adapted, in use, to bear against the bore of the tube and maintain the tool head located radially with respect to the tube axis; and support means (24,24′) is disposed on one or more of said housing shaft, first bearing housing and end sleeve adapted, in use, to bear against the bore of the tube and support the tool. A long length of tool can work the inside of long tubes.

Abstract translation: 用于加工管内孔的工具（100）包括具有带旋转输出的壳体的马达（10） 壳体套筒（14a）和轴（22）; 第一轴承壳体（16），其具有安装在所述壳体套筒上的可转动轴颈的第一心轴（102）; 以及连接到工具头的端套和轴。 电机输出沿公共轴（1），外壳轴，第一轴承主轴，端轴和工具头驱动。 改变机构（56,58）在工具头中以改变所述驱动器的横向方向。 输出（60）适于接收工具位。 计量装置（18,18'）设置在所述工具头上，并且在使用中适用于抵靠管的孔并保持工具头相对于管轴径向放置; 并且支撑装置（24,24'）设置在所述壳体轴，第一轴承壳体和端部套筒中的一个或多个上，所述第一轴承壳体和端部套筒在使用中适于承受所述管的孔并支撑所述工具。 长长的工具可以在长管的内部工作。

公开(公告)号：US20140308149A1

公开(公告)日：2014-10-16

申请号：US14315441

申请日：2014-06-26

Applicant: NATIONAL OILWELL VARCO, L.P.

Inventor： Wessley Jack Wilmot

IPC: E21B4/02 ,  B23B41/12

CPC classification number: B23C3/32 ,  B23B41/12 ,  B23B2215/72 ,  B23B2220/123 ,  B23C2270/18 ,  B23Q5/045 ,  B24B5/40 ,  B24B33/02 ,  B24B39/02 ,  B24B41/04 ,  E21B4/02 ,  F01C1/101 ,  F01C5/04 ,  F04C2/107 ,  F04C2/1071 ,  F04C2/1075 ,  F04C14/02 ,  F04C2240/10 ,  F04C2250/30 ,  Y10T408/03 ,  Y10T409/300616 ,  Y10T409/303808 ,  Y10T409/304424 ,  Y10T409/30448

Abstract: A tool (100) for working the internal bore of a tube comprises a motor (10), having a housing with a rotary output; a housing sleeve (14a) and shaft (22); a first bearing housing (16), having a rotatably journalled first spindle (102), mounted on the housing sleeve; and an end sleeve and shaft connected to a tool head. The motor output drives, along a common axis (1), the housing shaft, first bearing spindle, end shaft and tool head. A change mechanism (56, 58) is in the tool head to change direction of said drive to transverse said common axis. An output (60) is adapted to receive a tool bit. Gauge means (18, 18′) is disposed on said tool head and is adapted, in use, to bear against the bore of the tube and maintain the tool head located radially with respect to the tube axis; and support means (24, 24′) is disposed on one or more of said housing shaft, first bearing housing and end sleeve adapted, in use, to bear against the bore of the tube and support the tool. A long length of tool can work the inside of long tubes.

Abstract translation: 用于加工管内孔的工具（100）包括具有带旋转输出的壳体的马达（10） 壳体套筒（14a）和轴（22）; 第一轴承壳体（16），其具有安装在所述壳体套筒上的可转动轴颈的第一心轴（102）; 以及连接到工具头的端套和轴。 电机输出沿公共轴（1），外壳轴，第一轴承主轴，端轴和工具头驱动。 改变机构（56,58）在工具头中以改变所述驱动器的横向方向。 输出（60）适于接收工具位。 测量装置（18,18'）设置在所述工具头上，并且在使用中适于承受所述管的孔并且保持所述工具头相对于所述管轴径向放置; 并且支撑装置（24,24'）设置在所述壳体轴，第一轴承壳体和端部套筒中的一个或多个上，所述第一轴承壳体和端部套筒在使用中适于承受所述管的孔并支撑所述工具。 长长的工具可以在长管的内部工作。

公开(公告)号：US20140151127A1

公开(公告)日：2014-06-05

申请号：US14122079

申请日：2012-05-24

Applicant: FLEXIDRILL LIMITED

Inventor： Gregory Donald West ,  Peter Evan Powell

IPC: E21B4/16 ,  F01C1/10 ,  E21B4/06 ,  E21B34/10 ,  E21B4/02

CPC classification number: E21B4/16 ,  E21B4/02 ,  E21B4/06 ,  E21B34/10 ,  F01C1/101

Abstract: The use in a drillstring of a positive displacement motor (PDM) with both an output upwardly and an output downwardly to devices spaced at least by the PDM.

Abstract translation: 在正位移电动机（PDM）的钻柱中使用，输出向上和向下输出到至少由PDM分隔的装置。

公开(公告)号：US20120258001A1

公开(公告)日：2012-10-11

申请号：US13082210

申请日：2011-04-07

Applicant: Michael Guidry, JR.

Inventor： Michael Guidry, JR.

IPC: F04C2/10

CPC classification number: F01C1/101 ,  F01C19/005 ,  F04C2/1073 ,  F04C2/1075 ,  F04C13/001 ,  F04C15/0019 ,  F04C2210/24

Abstract: A progressing cavity pump/motor includes a stator (12) having a metal interior surface (14) and one or more spiraling internal lobes (16). The rotor (18) has a metal exterior surface (20) and one or more spiraling external lobes (22) for cooperating with the stator to form progressing cavities between the stator and the rotor during rotation of the rotor. At least one of the stator interior surface and the rotor exterior surface include a plurality of spaced grooves (30) in the respective surface, such that fluid flowing to a gap between the stator and the rotor is disrupted by the spaced grooves to reduce fluid leakage between the stator and the rotor.

Abstract translation: 进一步的腔泵/电动机包括具有金属内表面（14）和一个或多个螺旋形内部凸角（16）的定子（12）。 转子（18）具有金属外表面（20）和一个或多个螺旋形外凸片（22），用于与定子配合，以在转子旋转期间在定子和转子之间形成进一步的空腔。 定子内表面和转子外表面中的至少一个在相应表面中包括多个间隔开的凹槽（30），使得流到定子和转子之间的间隙的流体被间隔开的凹槽破坏以减少流体泄漏 在定子和转子之间。