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1. 再颁专利

USRE46746E1 Mud-lubricated bearing assembly with mechanical seal 有权
公开(公告)号：USRE46746E1
公开(公告)日：2018-03-06
申请号：US15252507
申请日：2016-08-31
申请人： National Oilwell Varco, L.P.
发明人： Nicholas Ryan Marchand , Jonathan Ryan Prill
IPC分类号： F16C33/74 , F16C3/00 , F16C17/10 , F16C17/04 , E21B4/00
CPC分类号： E21B4/003
摘要： In a mud-lubricated bearing assembly for a downhole motor, a mechanical seal is provided between the mandrel and the lower end of the bearing housing to prevent discharge of drilling fluid (mud) from the bearing assembly into the wellbore annulus. The mechanical seal is effected by mating wear-resistant annular contact surfaces provided on the mandrel and the bearing housing, with biasing means preferably being provided to keep the contact surfaces in sealing engagement during both on-bottom and off-bottom operational modes. The diverted drilling fluid passing through the bearings is redirected into the bore of the mandrel via ports through the mandrel wall to rejoin the main flow to the drill bit, such that substantially all of the drilling fluid flows through the bit.

2. 发明申请

US20140251695A1 Adjustable Bend Assembly for a Downhole Motor 有权
标题翻译：井下电机的可调弯曲组件
公开(公告)号：US20140251695A1
公开(公告)日：2014-09-11
申请号：US13786076
申请日：2013-03-05
申请人： National Oilwell Varco, L.P.
发明人： Nicholas Ryan Marchand , Jonathan Ryan Prill
IPC分类号： E21B17/20 , E21B7/04
CPC分类号： E21B7/068 , E21B4/02 , E21B7/067 , E21B17/203
摘要： A downhole motor for directional drilling includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing. In addition, the downhole motor includes a bearing assembly including a bearing housing and a bearing mandrel rotatably disposed within the bearing housing. The bearing mandrel has a first end directly connected to the driveshaft with a universal joint and a second end coupled to a drill bit. Further, the downhole motor includes an adjustment mandrel configured to adjust an acute deflection angle θ between the central axis of the bearing housing and the central axis of the driveshaft housing. The adjustment mandrel has a central axis coaxially aligned with the bearing housing, a first end coupled to the driveshaft housing, and a second end coupled to the bearing housing.
摘要翻译：用于定向钻井的井下电机包括驱动轴组件，其包括驱动轴壳体和可旋转地设置在驱动轴壳体内的驱动轴。此外，井下电动机包括轴承组件，其包括轴承壳体和可旋转地设置在轴承壳体内的轴承心轴。轴承心轴具有通过万向接头直接连接到驱动轴的第一端和联接到钻头的第二端。此外，井下电动机包括调整心轴，该调整心轴被配置为调节急性偏转角度＆amp; 在轴承壳体的中心轴线和驱动轴壳体的中心轴线之间。调节心轴具有与轴承壳体同轴对准的中心轴线，联接到驱动轴壳体的第一端和联接到轴承壳体的第二端。

3. 发明授权

US09347269B2 Adjustable bend assembly for a downhole motor 有权
标题翻译：用于井下电机的可调弯管组件
公开(公告)号：US09347269B2
公开(公告)日：2016-05-24
申请号：US13786076
申请日：2013-03-05
申请人： National Oilwell Varco, L.P.
发明人： Nicholas Ryan Marchand , Jonathan Ryan Prill
IPC分类号： E21B7/06 , E21B4/02
CPC分类号： E21B7/068 , E21B4/02 , E21B7/067 , E21B17/203
摘要： A downhole motor for directional drilling includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing. In addition, the downhole motor includes a bearing assembly including a bearing housing and a bearing mandrel rotatably disposed within the bearing housing. The bearing mandrel has a first end directly connected to the driveshaft with a universal joint and a second end coupled to a drill bit. Further, the downhole motor includes an adjustment mandrel configured to adjust an acute deflection angle θ between the central axis of the bearing housing and the central axis of the driveshaft housing. The adjustment mandrel has a central axis coaxially aligned with the bearing housing, a first end coupled to the driveshaft housing, and a second end coupled to the bearing housing.
摘要翻译：用于定向钻井的井下电机包括驱动轴组件，其包括驱动轴壳体和可旋转地设置在驱动轴壳体内的驱动轴。此外，井下电动机包括轴承组件，其包括轴承壳体和可旋转地设置在轴承壳体内的轴承心轴。轴承心轴具有通过万向接头直接连接到驱动轴的第一端和联接到钻头的第二端。此外，井下电动机包括调整心轴，该调整心轴被配置为调节急性偏转角度＆amp; 在轴承壳体的中心轴线和驱动轴壳体的中心轴线之间。调节心轴具有与轴承壳体同轴对准的中心轴线，联接到驱动轴壳体的第一端和联接到轴承壳体的第二端。

4. 发明授权

US09587437B2 Powered reaming device 有权
标题翻译：动力铰孔装置
公开(公告)号：US09587437B2
公开(公告)日：2017-03-07
申请号：US14312580
申请日：2014-06-23
申请人： National Oilwell Varco, L.P.
发明人： Jonathan Ryan Prill , Alan Martyn Eddison
IPC分类号： E21B10/26 , E21B4/02 , E21B17/10 , E21B7/28 , E21B17/18
CPC分类号： E21B10/26 , E21B4/02 , E21B7/28 , E21B17/1078 , E21B17/18
摘要： A powered reamer comprising a stationary assembly having a flow bore therethrough. A rotating assembly is disposed about the stationary assembly and one or more cutting structures are coupled to an outer surface of the rotating assembly. A flow restriction is disposed within the flow bore so as to divert a portion of fluid flowing through the flow bore through an outlet from the flow bore into an annulus between the stationary assembly and the rotating assembly. A power section is formed in the annulus between the stationary assembly and the rotating assembly. The power section operates to eccentrically rotate the rotating assembly about the stationary assembly in response to fluid flowing through the annulus between the stationary assembly and the rotating assembly.
摘要翻译：一种动力铰刀，包括具有穿过其中的流动孔的固定组件。旋转组件设置在固定组件周围，并且一个或多个切割结构联接到旋转组件的外表面。流动限制装置设置在流动孔内，以使流过流动孔的流体的一部分通过出口从流动孔转入静止组件和旋转组件之间的环形空间。动力部分形成在固定组件和旋转组件之间的环形空间中。功率部分响应于流过静止组件和旋转组件之间的环形空间的流体而围绕静止组件偏心旋转旋转组件。

5. 发明授权

US09488045B2 System and method for controlling a downhole tool 有权
标题翻译：用于控制井下工具的系统和方法
公开(公告)号：US09488045B2
公开(公告)日：2016-11-08
申请号：US14220743
申请日：2014-03-20
申请人： National Oilwell Varco, L.P.
发明人： Jeffery Clausen , Jonathan Ryan Prill , Rami Zewail
IPC分类号： G01V3/00 , E21B47/12 , E21B47/16 , E21B7/06
CPC分类号： E21B47/12 , E21B7/068 , E21B47/16
摘要： A system and method for communicating with a downhole tool. A downhole tool includes a downlink receiver and a command actuator. The downlink receiver receives control information, encoded in rotation of the tool, that controls operation of the tool. The downlink receiver includes a rotation sensor and a decoder. The rotation sensor senses rotation of the tool about a longitudinal axis. The decoder demarcates fields of the control information based on rotation state transitions sensed by the rotation sensor. The rotation state transitions are transitions between a rotating state and a non-rotating state. The decoder also decodes a control value for controlling the tool based on a duration of a field of the control information. The control value is wholly encoded in the field, and the field is encoded as a non-rotating state of the tool. The command actuator applies the control value to control operation of the tool.
摘要翻译：一种用于与井下工具通信的系统和方法。井下工具包括下行链路接收机和命令致动器。下行链路接收器接收控制工具旋转编码的控制信息，该控制信息控制工具的操作。下行链路接收机包括旋转传感器和解码器。旋转传感器感测工具围绕纵向轴线的旋转。解码器基于由旋转传感器感测到的旋转状态转变来划分控制信息的场。旋转状态转变是在旋转状态和非旋转状态之间的转变。解码器还解码用于基于控制信息的字段的持续时间来控制工具的控制值。该控制值在该字段中被完全编码，该场被编码为该工具的非旋转状态。命令执行器应用控制值来控制刀具的运行。

6. 发明申请

US20140284104A1 SYSTEM AND METHOD FOR CONTROLLING A DOWNHOLE TOOL 有权
标题翻译：用于控制井下工具的系统和方法
公开(公告)号：US20140284104A1
公开(公告)日：2014-09-25
申请号：US14220743
申请日：2014-03-20
申请人： National Oilwell Varco, L.P.
发明人： Jeffery Clausen , Jonathan Ryan Prill , Rami Zewail
IPC分类号： E21B47/12
CPC分类号： E21B47/12 , E21B7/068 , E21B47/16
摘要： A system and method for communicating with a downhole tool. A downhole tool includes a downlink receiver and a command actuator. The downlink receiver receives control information, encoded in rotation of the tool, that controls operation of the tool. The downlink receiver includes a rotation sensor and a decoder. The rotation sensor senses rotation of the tool about a longitudinal axis. The decoder demarcates fields of the control information based on rotation state transitions sensed by the rotation sensor. The rotation state transitions are transitions between a rotating state and a non-rotating state. The decoder also decodes a control value for controlling the tool based on a duration of a field of the control information. The control value is wholly encoded in the field, and the field is encoded as a non-rotating state of the tool. The command actuator applies the control value to control operation of the tool.
摘要翻译：一种用于与井下工具通信的系统和方法。井下工具包括下行链路接收机和命令致动器。下行链路接收器接收控制工具旋转编码的控制信息，该控制信息控制工具的操作。下行链路接收机包括旋转传感器和解码器。旋转传感器感测工具围绕纵向轴线的旋转。解码器基于由旋转传感器感测到的旋转状态转变来划分控制信息的场。旋转状态转变是在旋转状态和非旋转状态之间的转变。解码器还解码用于基于控制信息的字段的持续时间来控制工具的控制值。该控制值在该字段中被完全编码，该场被编码为该工具的非旋转状态。命令执行器应用控制值来控制刀具的运行。

7. 发明授权

US09771757B2 Downhole motor with concentric rotary drive system 有权
公开(公告)号：US09771757B2
公开(公告)日：2017-09-26
申请号：US14391312
申请日：2013-04-26
申请人： National Oilwell Varco, L.P.
发明人： Nicholas Ryan Marchand , Jeffery Ronald Clausen , Jonathan Ryan Prill
IPC分类号： E21B4/02
CPC分类号： E21B4/02
摘要： A downhole motor rotary drive system including a housing, a rotor rotatably and coaxially disposed within the housing, and an annular space between the rotor and housing. The rotor includes first and second ends, a bore extending between the first and second ends, an inlet port extending from the bore to the annular space, and an outlet port extending from the annular space to the bore. A plurality of gates are disposed within the annular space, each configured to engage the rotor and the housing, and a plurality of lobes extend within the annular space such that the lobes and the gates divide the annular space into a plurality of chambers. A flow path is defined by the annular space between the inlet and outlet ports, and the rotor is configured to rotate relative to the housing when a fluid is circulated along the flow path.

8. 发明申请

US20150068811A1 DOWNHOLE MOTOR WITH CONCENTRIC ROTARY DRIVE SYSTEM 有权
标题翻译：具有集中旋转驱动系统的卧式电机
公开(公告)号：US20150068811A1
公开(公告)日：2015-03-12
申请号：US14391312
申请日：2013-04-26
申请人： National Oilwell Varco, L.P.
发明人： Nicholas Ryan Marchand , Jeffery Ronald Clausen , Jonathan Ryan Prill
IPC分类号： E21B4/02
CPC分类号： E21B4/02
摘要： A downhole motor rotary drive system including a housing, a rotor rotatably and coaxially disposed within the housing, and an annular space between the rotor and housing. The rotor includes first and second ends, a bore extending between the first and second ends, an inlet port extending from the bore to the annular space, and an outlet port extending from the annular space to the bore. A plurality of gates are disposed within the annular space, each configured to engage the rotor and the housing, and a plurality of lobes extend within the annular space such that the lobes and the gates divide the annular space into a plurality of chambers. A flow path is defined by the annular space between the inlet and outlet ports, and the rotor is configured to rotate relative to the housing when a fluid is circulated along the flow path.
摘要翻译：一种井下电动机旋转驱动系统，包括壳体，可旋转并同轴地设置在壳体内的转子，以及转子和壳体之间的环形空间。转子包括第一和第二端，在第一和第二端之间延伸的孔，从孔延伸到环形空间的入口端口以及从环形空间延伸到孔的出口。多个门设置在环形空间内，每个门被配置为接合转子和壳体，并且多个叶片在环形空间内延伸，使得叶片和门将环形空间分成多个室。流动路径由入口和出口之间的环形空间限定，并且当流体沿着流动路径循环时，转子构造成相对于壳体旋转。

9. 发明申请

US20140037232A1 Mud-Lubricated Bearing Assembly with Mechanical Seal 有权
标题翻译：具有机械密封的润滑轴承组件
公开(公告)号：US20140037232A1
公开(公告)日：2014-02-06
申请号：US13957757
申请日：2013-08-02
申请人： National Oilwell Varco, L.P.
发明人： Nicholas Ryan Marchand , Jonathan Ryan Prill
IPC分类号： E21B4/00
CPC分类号： E21B4/003
摘要： In a mud-lubricated bearing assembly for a downhole motor, a mechanical seal is provided between the mandrel and the lower end of the bearing housing to prevent discharge of drilling fluid (mud) from the bearing assembly into the wellbore annulus. The mechanical seal is effected by mating wear-resistant annular contact surfaces provided on the mandrel and the bearing housing, with biasing means preferably being provided to keep the contact surfaces in sealing engagement during both on-bottom and off-bottom operational modes. The diverted drilling fluid passing through the bearings is redirected into the bore of the mandrel via ports through the mandrel wall to rejoin the main flow to the drill bit, such that substantially all of the drilling fluid flows through the bit.
摘要翻译：在用于井下电动机的泥浆润滑的轴承组件中，在心轴和轴承壳体的下端之间提供机械密封，以防止钻井液（泥浆）从轴承组件排放到井筒环中。机械密封通过配置设置在心轴和轴承壳体上的耐磨环形接触表面来实现，偏置装置优选地设置成在底部和底部操作模式期间保持接触表面的密封接合。穿过轴承的转向的钻井液通过轴通过心轴壁被重定向到心轴的孔中，以将主流重新连接到钻头，使得基本上所有的钻井流体都流过钻头。

10. 发明授权

US10184298B2 Adjustable bend assembly for a downhole motor 有权
公开(公告)号：US10184298B2
公开(公告)日：2019-01-22
申请号：US15136530
申请日：2016-04-22
申请人： NATIONAL OILWELL VARCO, L.P.
发明人： Nicholas Ryan Marchand , Jonathan Ryan Prill
IPC分类号： E21B7/08 , E21B7/04 , E21B17/04 , E21B17/05 , E21B7/06 , E21B4/02 , E21B17/20
摘要： A downhole motor for directional drilling includes a driveshaft assembly including a driveshaft housing and a driveshaft rotatably disposed within the driveshaft housing. In addition, the downhole motor includes a bearing assembly including a bearing housing and a bearing mandrel rotatably disposed within the bearing housing. The bearing mandrel has a first end directly connected to the driveshaft with a universal joint and a second end coupled to a drill bit. Further, the downhole motor includes an adjustment mandrel configured to adjust an acute deflection angle θ between the central axis of the bearing housing and the central axis of the driveshaft housing. The adjustment mandrel has a central axis coaxially aligned with the bearing housing, a first end coupled to the driveshaft housing, and a second end coupled to the bearing housing.

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