公开(公告)号：US10137423B2

公开(公告)日：2018-11-27

申请号：US14810461

申请日：2015-07-27

Applicant: Schlumberger Technology Corporation

Inventor： Kay McGuinness ,  Nathan Scott Lawrence ,  Andrew Meredith ,  Andrew Warrillow ,  Laurent Pirolli

IPC: G01N27/404 ,  B01F11/02 ,  B01F13/08 ,  B01F11/00 ,  G01N33/28

Abstract: Disclosed herein are devices and methods for the detection, quantification and/or monitoring of analytes. The systems and methods can be used, for example, to rapidly monitor gases downhole in a well.

公开(公告)号：US20170089192A1

公开(公告)日：2017-03-30

申请号：US15312559

申请日：2015-05-22

Applicant: Schlumberger Technology Corporation

Inventor： Dudi Rendusara ,  Andrew Meredith ,  Emmanuel Coste ,  Leo Steenson ,  Albert Hoefel

IPC: E21B47/00 ,  F04D15/00 ,  F04D13/10 ,  E21B43/12 ,  E21B47/12

CPC classification number: E21B47/0007 ,  E21B43/128 ,  E21B43/2406 ,  E21B47/12 ,  F04D13/10 ,  F04D15/0077 ,  F04D15/0088 ,  H02P27/08

Abstract: A method can include receiving sensor information from at least one sensor disposed in a downhole environment that includes an electric submersible pump operatively coupled to a power drive via a cable; receiving electrical information associated with transmission of power via the cable; and identifying a state of the electric submersible pump via an adaptive model of at least the cable and the electric submersible pump based at least in part on a portion of the sensor information and a portion of the electrical information.

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。

公开(公告)号：US20140367277A1

公开(公告)日：2014-12-18

申请号：US14365624

申请日：2012-12-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Lynne Crawford ,  Andrew Meredith ,  Nathan Lawrence ,  Timothy Jones

IPC: G01N27/28 ,  E21B47/00

CPC classification number: G01N27/28 ,  E21B47/00 ,  G01N27/302 ,  G01N27/308 ,  G01N27/48 ,  G01N33/1886

Abstract: An electrochemical sensor incorporates a ferrocenophane which is a compound with at least one bridging group covalently attached to and connecting the two cyclopentadiene rings associated with the same iron atom. This bridging group maybe tetramethylene. As compared to an equivalent sensor with ferrocene, the tolerance of elevated temperature is improved and so is the working life at ambient temperature.

Abstract translation: 电化学传感器包含二茂铁根，其是与至少一个共价连接并连接与相同铁原子相连的两个环戊二烯环的桥连基团的化合物。 该桥连基团可以是四亚甲基。 与具有二茂铁的等效传感器相比，提高温度的公差提高，并且在环境温度下的工作寿命也得到改善。