公开(公告)号：US20150167445A1

公开(公告)日：2015-06-18

申请号：US14109786

申请日：2013-12-17

Applicant: Schlumberger Technology Corporation

Inventor： Laurent Pirolli ,  Gary Martin Oddie ,  Andrew Meredith ,  Nathan S. Lawrence ,  Kay McGuinness ,  John Collins

IPC: E21B47/00

CPC classification number: E21B47/00 ,  G01N27/4045 ,  G01N33/0044

Abstract: An electrochemical fluid sensor for a downhole production tool positionable in a wellbore penetrating a subterranean is provided. The wellbore has a downhole fluid therein. The electrochemical fluid sensor includes a sensor housing positionable in the downhole tool, a sensing solution positionable in the housing (the sensing solution including a mediator reactive to target chemicals), a gas permeable membrane to fluidly isolate the downhole fluid from the sensing solution (the gas permeable membrane permitting the passage of gas to the sensing solution), and a plurality of electrodes positioned about the housing a distance from the gas permeable membrane to measure reaction by the sensing solution whereby downhole parameters may be determined.

Abstract translation: 提供了一种用于井下生产工具的电化学流体传感器，其可定位在穿透地下的井眼中。 井筒内有一个井下流体。 电化学流体传感器包括可定位在井下工具中的传感器壳体，可定位在壳体中的感测溶液（包括与目标化学物质反应的介质的感测溶液），用于将井下流体与感测溶液流体隔离的透气膜 透气膜，允许气体通过感测溶液）和多个电极，其围绕壳体设置距透气膜一定距离，以测量感测溶液的反应，从而可以确定井下参数。

公开(公告)号：US10605068B2

公开(公告)日：2020-03-31

申请号：US14109786

申请日：2013-12-17

Applicant: Schlumberger Technology Corporation

Inventor： Laurent Pirolli ,  Gary Martin Oddie ,  Andrew Meredith ,  Nathan S. Lawrence ,  Kay McGuinness ,  John Collins

IPC: E21B47/00 ,  G01N27/404 ,  G01N33/00

Abstract: An electrochemical fluid sensor for a downhole production tool positionable in a wellbore penetrating a subterranean is provided. The wellbore has a downhole fluid therein. The electrochemical fluid sensor includes a sensor housing positionable in the downhole tool, a sensing solution positionable in the housing (the sensing solution including a mediator reactive to target chemicals), a gas permeable membrane to fluidly isolate the downhole fluid from the sensing solution (the gas permeable membrane permitting the passage of gas to the sensing solution), and a plurality of electrodes positioned about the housing a distance from the gas permeable membrane to measure reaction by the sensing solution whereby downhole parameters may be determined.

公开(公告)号：US10386320B2

公开(公告)日：2019-08-20

申请号：US14279263

申请日：2014-05-15

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Clive E. Hall ,  Li Jiang ,  Timothy G. J. Jones ,  Andrew Meredith ,  Nathan S. Lawrence ,  Markus Pagels

IPC: G01N27/30 ,  G01N27/38 ,  G01N27/26

Abstract: The present invention, in one set of embodiments, provides methods and systems for integrating conducting diamond electrodes into a high power acoustic resonator. More specifically, but not by way of limitation, in certain embodiments of the present invention, diamond electrodes may be integrated into a high power acoustic resonator to provide a robust sensing device that may provide for acoustic cleaning of the electrodes and increasing the rate of mass transport to the diamond electrodes. The diamond electrodes may be used as working, reference or counter electrodes or a combination of two or more of such electrodes. In certain aspects, the high power acoustic resonator may include an acoustic horn for focusing acoustic energy and the diamond electrodes may be coupled with the acoustic horn.

公开(公告)号：US20150122487A1

公开(公告)日：2015-05-07

申请号：US14072795

申请日：2013-11-06

Applicant: Schlumberger Technology Corporation

Inventor： Nathan S. Lawrence ,  Andrew Meredith ,  Kay McGuinness ,  Markus Pagels ,  Timothy G. J. Jones ,  Andrew Howe ,  Richard Ferguson

IPC: E21B47/06 ,  E21B47/00

CPC classification number: E21B47/06 ,  E21B47/00 ,  E21B49/08 ,  E21B2049/085

Abstract: An electrochemical sensor of a downhole tool positionable in a wellbore penetrating a subterranean formation is provided. The downhole tool has a flowline to receive downhole fluid. The electrochemical sensor includes a bulkhead carried by the downhole tool, a membrane exposed to the downhole fluid in the flowline, and an electrochemical cell supported by the bulkhead about the membrane. The electrochemical cell includes a plurality of cell sensors, at least one cell electrode, and a sensing solution. The plurality cell sensors include an analyte sensor, a temperature sensor, and a pH sensor. The sensing solution is reactive to certain analytes in the downhole fluid to generate electrical signals measurable by the plurality of cell sensors whereby parameters of chemicals in the downhole fluid may be measured.

Abstract translation: 提供了一种位于穿透地下地层的井眼中的井下工具的电化学传感器。 井下工具具有接收井下流体的流线。 电化学传感器包括由井下工具承载的舱壁，暴露于流动管线中的井下流体的膜以及围绕隔膜由隔板支撑的电化学电池。 电化学电池包括多个电池传感器，至少一个电池电极和感测溶液。 多个单元传感器包括分析物传感器，温度传感器和pH传感器。 感测解决方案对井下流体中的某些分析物是反应的，以产生可由多个单元传感器测量的电信号，从而可以测量井下流体中的化学物质的参数。

公开(公告)号：US09435192B2

公开(公告)日：2016-09-06

申请号：US14072795

申请日：2013-11-06

Applicant: Schlumberger Technology Corporation

Inventor： Nathan S. Lawrence ,  Andrew Meredith ,  Kay McGuinness ,  Markus Pagels ,  Timothy G. J. Jones ,  Andrew Howe ,  Richard Ferguson

IPC: E21B47/06 ,  E21B47/00 ,  E21B49/08

CPC classification number: E21B47/06 ,  E21B47/00 ,  E21B49/08 ,  E21B2049/085

Abstract: An electrochemical sensor of a downhole tool positionable in a wellbore penetrating a subterranean formation is provided. The downhole tool has a flowline to receive downhole fluid. The electrochemical sensor includes a bulkhead carried by the downhole tool, a membrane exposed to the downhole fluid in the flowline, and an electrochemical cell supported by the bulkhead about the membrane. The electrochemical cell includes a plurality of cell sensors, at least one cell electrode, and a sensing solution. The plurality cell sensors include an analyte sensor, a temperature sensor, and a pH sensor. The sensing solution is reactive to certain analytes in the downhole fluid to generate electrical signals measurable by the plurality of cell sensors whereby parameters of chemicals in the downhole fluid may be measured.

Abstract translation: 提供了一种定位在穿透地下地层的井眼中的井下工具的电化学传感器。 井下工具具有接收井下流体的流线。 电化学传感器包括由井下工具承载的舱壁，暴露于流动管线中的井下流体的膜以及围绕隔膜由隔板支撑的电化学电池。 电化学电池包括多个电池传感器，至少一个电池电极和感测溶液。 多个单元传感器包括分析物传感器，温度传感器和pH传感器。 感测解决方案对井下流体中的某些分析物是反应的，以产生可由多个单元传感器测量的电信号，从而可以测量井下流体中的化学物质的参数。