公开(公告)号：US20140332413A1

公开(公告)日：2014-11-13

申请号：US14365945

申请日：2012-12-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Lynne Crawford ,  Nathan Lawrence ,  Timothy Jones

IPC: C07C201/12 ,  G01N27/30

CPC classification number: C07C201/12 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/174 ,  C01B32/194 ,  C01B32/20 ,  G01N27/302 ,  G01N27/308 ,  H01G11/32 ,  H01M4/583 ,  H01M4/96 ,  Y02E60/13

Abstract: Derivatization of an elemental carbon surface is accomplished by exposing the carbon surface to an aprotic solvent containing a hydrazone molecule of formula (I) or the corresponding salt of formula (II) wherein R1 is an organic group, and R2 is an organic group or hydrogen and decomposing the hydrazone in the presence of elemental carbon to create a carbene moiety of formula (III): which attaches to the carbon surface. The attached groups may be redox active so that the derivatized carbon may be used in an electrochemical sensor.

Abstract translation: 元素碳表面的衍生是通过将碳表面暴露于含有式（I）的腙分子或其相应的式（II）的盐的非质子溶剂，其中R1是有机基团，R2是有机基团或氢 并在元素碳的存在下分解腙以产生连接到碳表面的式（III）的卡宾部分。 所连接的基团可以是氧化还原活性的，使得衍生的碳可以用在电化学传感器中。

公开(公告)号：US10539500B2

公开(公告)日：2020-01-21

申请号：US15511437

申请日：2015-09-09

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

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

IPC: B08B7/00 ,  G02B1/02 ,  G01N21/15 ,  G01N21/35 ,  G01N21/3577 ,  G02B27/00 ,  G01N21/31 ,  G01N21/552 ,  G01N33/28 ,  G01N21/3504 ,  G02B5/28

Abstract: An integrated approach for cleaning an active surface of a petrochemical sensor. Sensors in the petrochemical industry are often deployed in locations where they are prone to fouling. By heating the active surface fouling substances may be removed from the active surface. Heating the surface above a supercritical point of a fluid being sensed may create a fluid that may serve to clean the active surface. Limiting the duration of the applied heating and/or pulsing the heating may mitigate adverse effects of use of high temperatures. A doped active surface, such as a doped diamond window may be designed to have conductive areas in the window that may be used for resistive heating of the window.

公开(公告)号：US10451784B2

公开(公告)日：2019-10-22

申请号：US15511491

申请日：2015-09-09

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION ,  READING UNIVERSITY

Inventor： Timothy Jones ,  Nathan Lawrence ,  Gary Hawkins ,  Richard Sherwood ,  Karim Djotni

IPC: G02B5/28 ,  G01N33/28 ,  G01J3/02

Abstract: A narrow bandpass filter that may be used in a mid-infrared sensor for monitoring a species, which may be a component of a fluid or a solid material. The filter comprises a cavity comprising a low refractive index material. By providing a high ratio of low refractive index material in the filter with respective to high refractive index material, the filter is configured so that wavelength transmission remains constant with varying temperature. Materials used for the low and/or high refractive index provide a temperature invariant filter that transmits mid-infrared spectra without serious degradation.

公开(公告)号：US10407379B2

公开(公告)日：2019-09-10

申请号：US14665832

申请日：2015-03-23

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Fenglou Zou ,  Nathan Lawrence ,  Timothy Jones

IPC: B82Y30/00 ,  B82Y40/00 ,  C01B32/20 ,  C01B32/21 ,  C01B32/28 ,  G01N27/30 ,  C01B32/156 ,  C01B32/174 ,  C01B32/194 ,  C01B32/354 ,  C07C201/12 ,  C01B31/02 ,  C01B31/04

Abstract: A molecular species is covalently attached to elemental carbon by exposing the carbon to a reaction mixture containing a strong base and a compound of the formula or in which X denotes a covalently attached atom or group capable of forming an X− anion and each Z is a moiety comprising a plurality of atoms, but which does not have a hydrogen atom directly attached to the atom which itself is directly attached to the —CH2X or —CHX group. The carbon substrate may be graphite or carbon nanotubes.

公开(公告)号：US20190267626A1

公开(公告)日：2019-08-29

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: H01M4/583 ,  H01M4/08 ,  C01B32/10 ,  H01M6/14 ,  H01M4/38

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：US20170242151A1

公开(公告)日：2017-08-24

申请号：US15510249

申请日：2015-09-09

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Timothy Jones ,  Nathan Scott Lawrence ,  Go Fujisawa ,  Sheng Chao ,  Rolf Rustad

IPC: G01V8/14 ,  E21B49/08

CPC classification number: G01V8/14 ,  E21B49/08 ,  E21B2049/085 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/552 ,  G01N2021/3595 ,  G01N2201/068

Abstract: A sensor for monitoring a hydrate inhibitor dissolved in a liquid. The sensor includes an internal reflection window for contacting with the liquid. The sensor further includes a mid-infrared light source for directs a beam of mid-infrared radiation into the window to provide for attenuated internal reflection at an interface between the window and the liquid. The internally reflected mid-infrared beam is passed through a narrow bandpass filter which preferentially transmits mid-infrared radiation over a band of wavelengths corresponding to an absorbance peak of the dissolved hydrate inhibitor to filter internally reflected mid-infrared radiation received from the window. The intensity of the reflected mid-infrared beam transmitted through the filter is measured and used to determine an amount of hydrate inhibitor ion the liquid.

公开(公告)号：US20160133932A1

公开(公告)日：2016-05-12

申请号：US14935043

申请日：2015-11-06

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: H01M4/583 ,  H01M4/38 ,  H01M4/08 ,  H01M4/06

CPC classification number: H01M4/5835 ,  C01B32/10 ,  C01P2004/12 ,  C01P2004/62 ,  H01M4/08 ,  H01M4/382 ,  H01M6/14 ,  H01M2004/021 ,  H01M2004/028

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.

Abstract translation: 具有锂基阳极和氟化碳阴极的Li / CFx一次电池。 氟化碳阴极包括氟化碳纳米颗粒。 碳前体碳纳米管的结构和尺寸分布被配置成提供改进的电池性能。

公开(公告)号：US20210165123A1

公开(公告)日：2021-06-03

申请号：US17147099

申请日：2021-01-12

Applicant: Schlumberger Technology Corporation

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

IPC: G01V8/10 ,  G01N21/3504 ,  G01N33/00 ,  G01N21/3577 ,  G01N21/552 ,  E21B49/08 ,  G01N21/15

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：US10962499B2

公开(公告)日：2021-03-30

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

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.

公开(公告)号：US20200165916A1

公开(公告)日：2020-05-28

申请号：US16695671

申请日：2019-11-26

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

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

IPC: E21B47/12 ,  G01N21/552 ,  E21B47/06 ,  E21B47/00 ,  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 transmitted through the first filter, and determines therefrom an amount of the species in the fluid.