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：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：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：US11221431B2

公开(公告)日：2022-01-11

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：US10921482B2

公开(公告)日：2021-02-16

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 ,  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：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：US10409300B2

公开(公告)日：2019-09-10

申请号：US14899569

申请日：2014-06-26

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Benjamin Peter Jeffryes ,  John Cook ,  Steven Gahlings

IPC: E21B44/00 ,  G05D19/02 ,  E21B47/00 ,  E21B43/12 ,  G05B15/02

Abstract: A method for changing a set point of a system where period of a dominant resonance of the system is determined, a change profile for the set point change is processed; a time period for the set point change based on the period of the dominant resonance in order to minimize excitation of the dominant resonance is also processed; and the set point change is actioned according to the processed change profile and the time period.

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：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。