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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
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。
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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
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.
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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
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。
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公开(公告)号：US20140332207A1
公开(公告)日：2014-11-13
申请号：US14339330
申请日：2014-07-23
Applicant: Schlumberger Technology Corporation
Inventor： Jerald J. Hinkel , Dean Willberg , Markus Pagels
CPC classification number: E21B49/088 , C09K8/58 , E21B43/16 , G01N24/081 , G01N33/24
Abstract: A method for determining a characteristic of an underground formation with a fluid is described. The method includes providing a sample material of the underground formation; measuring the permeability and the porosity of the sample material; performing a drainage test on the sample material using the fluid; estimating the threshold pressure of the sample material from the drainage test, the permeability and the porosity measurements; and determining the receding contact angle of the fluid on the sample material from the threshold pressure. The sample material can be disaggregated material.
Abstract translation: 描述了一种用流体确定地下地层特征的方法。 该方法包括提供地下地层的样品材料; 测量样品材料的渗透性和孔隙率; 使用流体对样品材料进行排水试验; 从排水试验估算样品材料的阈值压力，渗透率和孔隙度测量值; 以及从所述阈值压力确定所述样品材料上的所述流体的后退接触角。 样品材料可以是分解材料。
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