公开(公告)号：US10944109B2

公开(公告)日：2021-03-09

申请号：US16408503

申请日：2019-05-10

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Hanpu Liang ,  Nathan Lawrence ,  Timothy Jones ,  Steven Gahlings ,  Christine Jarvis ,  Wen Rong Li ,  Rogerio Tadeu Ramos ,  Vladimir Hernandez Solis

IPC: H01M4/58 ,  H01M4/583 ,  H01M4/38 ,  H01M4/08 ,  C01B32/10 ,  H01M6/14 ,  H01M4/02

Abstract: A Li/CFx primary battery having a lithium-based anode and a fluorinated carbon cathode. The fluorinated carbon cathode includes fluorinated carbon nanoparticles. The structure and size distribution of the carbon precursor carbon nanotubes are configured to provide improved battery performance. The fluorinated carbon nanoparticles can be formed by fluorinating carbon nanoparticles using a fluorine-based reactive gas at a temperature in the range from 300 to 600° C., and the fluorinated carbon nanoparticles can further be used to form the cathode of the primary battery. Producing the Li/CFx primary batter can also include heating the fluorinated carbon nanoparticles under an inert atmosphere before the fluorinated carbon nanoparticles are used to form the cathode of the primary battery.

公开(公告)号：US20180320508A1

公开(公告)日：2018-11-08

申请号：US15511333

申请日：2015-09-09

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Timothy Jones ,  Nathan Lawrence ,  Go Fujisawa ,  Sheng Chao

IPC: E21B47/12 ,  E21B47/00 ,  G01N21/552 ,  G01N33/24 ,  E21B47/06

CPC classification number: E21B47/123 ,  E21B47/0002 ,  E21B47/0003 ,  E21B47/065 ,  G01N21/552 ,  G01N33/24

Abstract: A sensor for monitoring a species which is a component of a fluid. The sensor includes an internal reflection window which, in use, is in direct contact with the fluid. The sensor further includes a mid-infrared light source which directs a beam of mid-infrared radiation into said window for attenuated internal reflection at an interface between the window and the fluid. The sensor further includes a first narrow bandpass filter which preferentially transmits mid-infrared radiation over a band of wavelengths corresponding to an absorbance peak of the species. The sensor further includes an infrared detector which detects filtered mid-infrared radiation transmitted through the first filter and a processor for measuring the intensity of the detected mid-infrared radiation trans mined through the first filter, and determines therefrom an amount of the species in the fluid.

公开(公告)号：US20180231684A1

公开(公告)日：2018-08-16

申请号：US15511336

申请日：2015-09-09

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Timothy Jones ,  Nathan Lawrence ,  Go Fujisawa ,  Sheng Chao ,  Li Jiang

IPC: G01V8/14 ,  G01N21/3577 ,  G01N21/552 ,  G01N21/15 ,  G01N21/3504 ,  G01N33/00 ,  E21B49/08

CPC classification number: G01V8/14 ,  E21B49/08 ,  E21B2049/085 ,  G01N21/15 ,  G01N21/3504 ,  G01N21/3577 ,  G01N21/552 ,  G01N33/004 ,  G01N2021/154 ,  G01N2201/0696 ,  G01N2201/12 ,  Y02A50/244

Abstract: A sensor is provided for monitoring a mineral acid dissolved in a liquid. The sensor includes an internal reflection window which, in use, is in direct contact with the liquid. The sensor further includes a mid-infrared light source which directs a beam of mid-infrared radiation into said window for attenuated internal reflection at an interface between the window and the liquid. The sensor further includes a first narrow bandpass filter which preferentially transmits mid-infrared radiation over a band of wavelengths corresponding to an absorbance peak of the dissolved mineral acid to filter internally reflected mid-infrared radiation received from the window. The sensor further includes an infrared detector which detects filtered mid-infrared radiation transmitted through the first filter. The sensor further includes a processor arrangement, operably coupled to the infrared detector, which measures the intensity of the detected mid-infrared radiation transmitted through the first filter, and determines therefrom an amount of the mineral acid dissolved in the liquid.

公开(公告)号：US11965853B2

公开(公告)日：2024-04-23

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 ,  G01N27/30 ,  G01N27/48 ,  G01N33/18

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.

公开(公告)号：US11333625B2

公开(公告)日：2022-05-17

申请号：US16871735

申请日：2020-05-11

Applicant: Schlumberger Technology Corporation

Inventor： Timothy Jones ,  Debbie S. Silvester ,  Li Jiang ,  Hanpu Liang ,  Nathan Lawrence ,  Richard Compton

IPC: G01N27/404 ,  B01J19/24 ,  E21B49/08 ,  G01N27/30 ,  G01N27/40 ,  G01N27/416 ,  G01N27/49 ,  H01M8/0438 ,  H01M8/1018 ,  G01N33/00 ,  H01M8/10

Abstract: A process for determining a content of hydrogen in a fluid medium includes contacting the fluid medium with a sensor. The sensor has a housing enclosing a chamber containing an ionic liquid electrolyte, a window which is permeable to hydrogen and positioned in an opening in the housing, and electrodes in contact with the ionic liquid electrolyte in the chamber. Hydrogen is allowed to pass through the window from the fluid medium into the electrolyte and the sensor is heated. Temperature and pressure of the fluid medium is determined and electrical potential is applied to the electrodes. The method also includes measuring current flow. The sensor can be used to observe hydrogen concentration by voltammetry. The method and sensor may be used for measuring downhole hydrogen content, monitoring fiber-optic cables for damage by hydrogen, corrosion monitoring, and in small-scale process plants where hydrogen is part of a gas stream.

公开(公告)号：US20200271617A1

公开(公告)日：2020-08-27

申请号：US16871735

申请日：2020-05-11

Applicant: Schlumberger Technology Corporation

Inventor： Timothy Jones ,  Debbie S. Silvester ,  Li Jiang ,  Hanpu Liang ,  Nathan Lawrence ,  Richard Compton

IPC: G01N27/404 ,  B01J19/24 ,  E21B49/08 ,  G01N27/30 ,  G01N27/40 ,  G01N27/416 ,  G01N27/49 ,  H01M8/0438 ,  H01M8/1018

Abstract: A process for determining a content of hydrogen in a fluid medium includes contacting the fluid medium with a sensor. The sensor has a housing enclosing a chamber containing an ionic liquid electrolyte, a window which is permeable to hydrogen and positioned in an opening in the housing, and electrodes in contact with the ionic liquid electrolyte in the chamber. Hydrogen is allowed to pass through the window from the fluid medium into the electrolyte and the sensor is heated. Temperature and pressure of the fluid medium is determined and electrical potential is applied to the electrodes. The method also includes measuring current flow. The sensor can be used to observe hydrogen concentration by voltammetry. The method and sensor may be used for measuring downhole hydrogen content, monitoring fiber-optic cables for damage by hydrogen, corrosion monitoring, and in small-scale process plants where hydrogen is part of a gas stream.

公开(公告)号：US10099927B2

公开(公告)日：2018-10-16

申请号：US14365591

申请日：2012-12-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Lynne Crawford ,  Nathan Lawrence ,  Timothy Jones

IPC: C01B31/02 ,  C01B31/04 ,  G01N27/30 ,  G01N27/48 ,  B82Y30/00 ,  B82Y40/00

Abstract: A process for derivatization of an elemental carbon surface comprising exposing the carbon surface to a reaction mixture containing a thiol and a free radical initiator, and inducing decomposition of the initiator to free radicals so that moieties from the thiol become covalently attached to the carbon surface. The process can derivatize carbon with a redox active compound having a functional group which can be converted electrochemically between reduced and oxidized forms. Such derivatized carbon may be used in an electrode of an electrochemical sensor.

公开(公告)号：US20170242149A1

公开(公告)日：2017-08-24

申请号：US15511164

申请日：2015-09-09

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Go Fujisawa ,  Sheng Chao ,  Timothy Jones ,  Nathan Lawrence ,  Rolf Rustad ,  Li Jiang ,  Steven Gahlings

IPC: G01V8/10 ,  E21B49/08 ,  G01N33/00 ,  G01N21/15 ,  G01N21/3504 ,  G01N21/3577

CPC classification number: G01V8/10 ,  E21B49/08 ,  E21B2049/085 ,  G01N21/15 ,  G01N21/3504 ,  G01N21/3577 ,  G01N21/552 ,  G01N33/004 ,  G01N2021/152 ,  G01N2021/154 ,  G01N2201/068 ,  G01N2201/0696 ,  G01N2201/12 ,  Y02A50/244

Abstract: A sensor for monitoring CO2 in a fluid regardless of the phase properties of the fluid, i.e., regardless of whether the fluid contacting the window is a liquid water-based phase, a liquid oil-based phase, a mixture of liquid water and liquid oil-based phases, or a gas phase. The sensor includes an internal reflection window for contacting with the fluid. A mid-infrared light source directs a beam of mid-infrared radiation into the window and the beam is internal reflected at an interface between the window and the fluid. The reflected beam is passed through three narrow bandpass filters which preferentially transmit mid-infrared radiation over bands of wavelengths corresponding to absorbance peaks of water, oil and CO2. The amount of CO2 is determined from the intensities of the mid-infrared radiation passing through the three filters

公开(公告)号：US20150247818A1

公开(公告)日：2015-09-03

申请号：US14436221

申请日：2013-10-15

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Debbie S. Silvester ,  Nathan Scott Lawrence ,  Richard Compton ,  Timothy Jones ,  Li Jiang ,  Hanpu Liang

IPC: G01N27/404 ,  G01N27/30 ,  G01N27/416 ,  B01J19/24 ,  H01M8/04 ,  H01M8/10 ,  E21B49/08 ,  G01N27/40 ,  G01N27/49

CPC classification number: G01N27/4045 ,  B01J19/24 ,  B01J2219/24 ,  E21B49/08 ,  G01N27/30 ,  G01N27/40 ,  G01N27/4162 ,  G01N27/49 ,  G01N33/005 ,  H01M8/04388 ,  H01M8/1018 ,  H01M2008/1095

Abstract: A sensor for hydrogen in a fluid medium has a chamber for electrolyte with a window which is selectively permeable to hydrogen to allow hydrogen to pass from the fluid medium under test into the electrolyte in the chamber. A plurality of electrodes in contact with the ionic liquid electrolyte are used to observe hydrogen concentration by voltammetry. The electrolyte is an ionic liquid. Applications where such a sensor may be used include a wellbore tool for measuring the content of hydrogen in a subterranean fluid, monitoring of fiber-optic cables for damage by hydrogen, corrosion monitoring, and small-scale process plant where hydrogen is part of a gas stream.

Abstract translation: 在流体介质中用于氢的传感器具有用于电解质的室，其具有可选择地渗透氢的窗口，以允许氢气从被测试的流体介质通过到室中的电解质中。 使用与离子液体电解质接触的多个电极通过伏安法观察氢浓度。 电解质是离子液体。 可以使用这种传感器的应用包括用于测量地下流体中的氢含量的井筒工具，用于氢气损坏的光纤电缆的监测，腐蚀监测以及氢气是气体的一部分的小型工艺设备 流。

公开(公告)号：US20140353175A1

公开(公告)日：2014-12-04

申请号：US14365591

申请日：2012-12-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Lynne Crawford ,  Nathan Lawrence ,  Timothy Jones

IPC: C01B31/02 ,  G01N27/30 ,  C01B31/04

CPC classification number: C01B31/02 ,  B82Y30/00 ,  B82Y40/00 ,  C01B31/0273 ,  C01B31/04 ,  C01B31/0484 ,  C01B32/05 ,  C01B32/174 ,  C01B32/194 ,  C01B32/20 ,  G01N27/302 ,  G01N27/308 ,  G01N27/48

Abstract: A process for derivatization of an elemental carbon surface comprising exposing the carbon surface to a reaction mixture containing a thiol and a free radical initiator, and inducing decomposition of the initiator to free radicals so that moieties from the thiol become covalently attached to the carbon surface. The process can derivatize carbon with a redox active compound having a functional group which can be converted electrochemically between reduced and oxidized forms. Such derivatized carbon may be used in an electrode of an electrochemical sensor.

Abstract translation: 包括将碳表面暴露于含有硫醇和自由基引发剂的反应混合物，并引发引发剂分解成自由基的方法，使得来自硫醇的部分共价连接到碳表面。 该方法可以用具有官能团的氧化还原活性化合物衍生碳，其可以在还原和氧化形式之间电化学转化。 这种衍生的碳可以用在电化学传感器的电极中。