公开(公告)号：US11536130B2

公开(公告)日：2022-12-27

申请号：US16432999

申请日：2019-06-06

Applicant: Schlumberger Technology Corporation

Inventor： Hiroshi Nakajima ,  Cong Wang

IPC: E21B47/08 ,  E21B47/01 ,  E21B47/12

Abstract: Logging while drilling (LWD) mechanical calipers are disclosed. An example apparatus to characterize a bore includes a drill collar, a sliding sleeve that moves longitudinally relative to the drill collar, and a sliding block operatively coupled to the sliding sleeve and movable relative to the drill collar. The example apparatus also includes a caliper arm operatively coupled to the sliding block, where the caliper arm is to displace radially outward towards an inner diameter of the bore based on movement of the sliding block, and a caliper sliding sensor to measure a movement of the sliding block.

公开(公告)号：US10132958B2

公开(公告)日：2018-11-20

申请号：US15209839

申请日：2016-07-14

Applicant: Schlumberger Technology Corporation

Inventor： Yuehua Chen ,  Cong Wang

IPC: G01V8/00 ,  G01N21/25 ,  G01N21/27 ,  G01N21/3577

Abstract: A technique includes acquiring dry condition and wet measurements using an optical spectrometer for a plurality of lamp intensities. The technique includes determining candidate maximum optical densities as a function of the lamp intensities based at least in part on a reference measurement that is acquired by the spectrometer, the reference measurement and does not vary with respect to the lamp intensities. The technique includes determining an optical density linear dynamic range based at least in part on the candidate maximum optical densities.

公开(公告)号：US20150000977A1

公开(公告)日：2015-01-01

申请号：US13929789

申请日：2013-06-28

Applicant: Schlumberger Technology Corporation

Inventor： Cong Wang ,  Akira Kamiya

IPC: E21B47/00

CPC classification number: E21B47/00 ,  E21B47/01 ,  E21B49/10

Abstract: A fluid sensor for a downhole tool positionable in a wellbore penetrating a subterranean formation. The downhole tool has a housing with a flowline therethrough receiving a downhole fluid therein. The fluid sensor includes an insulative base positionable in the downhole tool, a conductive shield positionable on the insulative base, and a plurality of electrodes each having a non-conductive coating thereon. Each of the electrodes includes a sensing element and a pin. The sensing element is positionable in the insulative base and exposed to the downhole fluid passing through the flowline. The pin operatively connects the sensing element to a downhole unit whereby parameters of the downhole fluid are measured.

Abstract translation: 用于井下工具的流体传感器，其可定位在穿透地下地层的井眼中。 所述井下工具具有壳体，所述壳体具有通过其在其中容纳井下流体的流动通道。 流体传感器包括可定位在井下工具中的绝缘基座，可定位在绝缘基底上的导电屏蔽件，以及多个电极，每个电极上均具有非导电涂层。 每个电极包括感测元件和销。 感测元件可定位在绝缘基体中并暴露于穿过流线的井下流体。 该销将感测元件可操作地连接到井下单元，从而测量井下流体的参数。

公开(公告)号：US10184873B2

公开(公告)日：2019-01-22

申请号：US14850915

申请日：2015-09-10

Applicant: Schlumberger Technology Corporation

Inventor： Cong Wang ,  Akira Kamiya ,  Yoko Morikami

IPC: G01N11/16 ,  G01N33/28

Abstract: A vibrating wire viscometer and cartridge for the same are provided. The cartridge includes a body member with a flowline for passing fluid, an electrically conductive wire disposed in the flowline, first and second electrically conductive posts, and a connector having first and second electrically conductive terminals. The first and second posts are mechanically coupled to the body member to hold the wire in tension within the flowline. The first and second terminals are connected to the first and second posts for applying an alternating electric current to the wire, respectively.

公开(公告)号：US09429013B2

公开(公告)日：2016-08-30

申请号：US14040726

申请日：2013-09-30

Applicant: Schlumberger Technology Corporation

Inventor： Cong Wang ,  Kazumasa Kanayama ,  Akira Kamiya ,  Hua Chen

IPC: G01N21/00 ,  E21B49/08

CPC classification number: E21B49/08

Abstract: An optical window assembly of an optical sensor of a downhole tool positionable in a wellbore penetrating a subterranean formation. The downhole tool has a housing with a flowline there through to receive downhole fluid therein. The optical sensor is positionable about the flowline to measure light passing therethrough. The optical window assembly includes a tubular sensor body positionable in the housing (the sensor body having a sensor-end and a flanged signal-end with a passage there through), an optical window positionable in the passage of the sensor body to pass the light from the flowline to the optical sensors, a seal disposed about the sensor body, and a backup ring disposed about the sensor body between the flanged signal-end and the seal to support the seal about the sensor body whereby the downhole fluid is prevented from leaking between the seal and the sensor body.

Abstract translation: 井下工具的光学传感器的光学窗组件可定位在穿透地下地层的井眼中。 井下工具具有壳体，其中具有流动线，以在其中接收井下流体。 光学传感器可围绕流线定位以测量通过其中的光。 光学窗组件包括可定位在壳体中的管状传感器主体（传感器本体具有传感器端部和带通道的带法兰的信号端），可在传感器本体的通道中定位以通过光线的光学窗口 从流路到光学传感器，围绕传感器主体设置的密封件以及设置在传感器主体周围的法兰信号端和密封件之间的支撑环，以支撑围绕传感器主体的密封，从而防止井下流体泄漏 在密封和传感器体之间。

公开(公告)号：US20140239168A1

公开(公告)日：2014-08-28

申请号：US14040726

申请日：2013-09-30

Applicant: Schlumberger Technology Corporation

Inventor： Cong Wang ,  Kazumasa Kanayama ,  Akira Kamiya ,  Hua Chen

IPC: G01V8/10

CPC classification number: E21B49/08

Abstract: An optical window assembly of an optical sensor of a downhole tool positionable in a wellbore penetrating a subterranean formation. The downhole tool has a housing with a flowline therethrough to receive downhole fluid therein. The optical sensor is positionable about the flowline to measure light passing therethrough. The optical window assembly includes a tubular sensor body positionable in the housing (the sensor body having a sensor end and a flanged signal end with a passage therethrough), an optical window positionable in the passage of the sensor body to pass the light from the flowline to the optical sensors, a seal disposable about the sensor body, and a backup ring disposable about the sensor body between the flanged signal end and the seal to support the seal about the sensor body whereby the downhole fluid is prevented from leaking between the seal and the sensor body.

Abstract translation: 井下工具的光学传感器的光学窗组件可定位在穿透地下地层的井眼中。 所述井下工具具有壳体，所述壳体具有穿过其的流动通道以在其中接收井下流体。 光学传感器可围绕流线定位以测量通过其中的光。 光学窗组件包括可定位在壳体中的管状传感器主体（传感器主体具有传感器端部和带通道的通路的带凸缘的信号端），光学窗口可定位在传感器主体的通道中，以使来自流线 光学传感器，围绕传感器主体一次性的密封件，以及在法兰的信号端和密封件之间围绕传感器本体一次性的支撑环，以支撑围绕传感器主体的密封，从而防止井下流体在密封件和 传感器体。

公开(公告)号：US20180017705A1

公开(公告)日：2018-01-18

申请号：US15209839

申请日：2016-07-14

Applicant: Schlumberger Technology Corporation

Inventor： Yuehua Chen ,  Cong Wang

IPC: G01V8/00 ,  G01N21/25

CPC classification number: G01V8/00 ,  G01N21/25 ,  G01N21/274 ,  G01N21/3577

Abstract: A technique includes acquiring dry condition and wet measurements using an optical spectrometer for a plurality of lamp intensities. The technique includes determining candidate maximum optical densities as a function of the lamp intensities based at least in part on a reference measurement that is acquired by the spectrometer, the reference measurement and does not vary with respect to the lamp intensities. The technique includes determining an optical density linear dynamic range based at least in part on the candidate maximum optical densities.

公开(公告)号：US20160090837A1

公开(公告)日：2016-03-31

申请号：US14850915

申请日：2015-09-10

Applicant: Schlumberger Technology Corporation

Inventor： Cong Wang ,  Akira Kamiya ,  Yoko Morikami

IPC: E21B49/08 ,  G01N11/16

CPC classification number: G01N11/16 ,  G01N33/2823

Abstract: A vibrating wire viscometer and cartridge for the same are provided. The cartridge includes a body member with a flowline for passing fluid, an electrically conductive wire disposed in the flowline, first and second electrically conductive posts, and a connector having first and second electrically conductive terminals. The first and second posts are mechanically coupled to the body member to hold the wire in tension within the flowline. The first and second terminals are connected to the first and second posts for applying an alternating electric current to the wire, respectively.

Abstract translation: 提供了一种用于其的振动线粘度计和盒。 墨盒包括具有用于通过流体的流线的本体构件，设置在流线中的导电线，第一和第二导电柱以及具有第一和第二导电端子的连接器。 第一和第二柱机械联接到主体构件以将线保持在流线内的张力。 第一端子和第二端子分别连接到第一和第二端子，用于向导线施加交流电流。

公开(公告)号：US09677394B2

公开(公告)日：2017-06-13

申请号：US13929789

申请日：2013-06-28

Applicant: Schlumberger Technology Corporation

Inventor： Cong Wang ,  Akira Kamiya

IPC: E21B47/00 ,  E21B49/10 ,  E21B47/01

CPC classification number: E21B47/00 ,  E21B47/01 ,  E21B49/10

Abstract: A fluid sensor for a downhole tool positionable in a wellbore penetrating a subterranean formation. The downhole tool has a housing with a flowline therethrough receiving a downhole fluid therein. The fluid sensor includes an insulative base positionable in the downhole tool, a conductive shield positionable on the insulative base, and a plurality of electrodes each having a non-conductive coating thereon. Each of the electrodes includes a sensing element and a pin. The sensing element is positionable in the insulative base and exposed to the downhole fluid passing through the flowline. The pin operatively connects the sensing element to a downhole unit whereby parameters of the downhole fluid are measured.