公开(公告)号：US20180003619A1

公开(公告)日：2018-01-04

申请号：US15638443

申请日：2017-06-30

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Vincent Joseph Sieben ,  Kenneth John Chau ,  Shahnawaz Hossain Molla ,  Farshid Mostowfi ,  Elizabeth Jennings Smythe Jennings Smythe

IPC: G01N21/27 ,  G01N21/05 ,  G01N33/28 ,  G01N21/25

CPC classification number: G01N21/27 ,  G01N21/05 ,  G01N21/553 ,  G01N33/2835 ,  G01N2021/258

Abstract: An optical sensor includes a flow cell permitting flow of a hydrocarbon-based analyte therethrough. A metallic film is disposed adjacent or within the flow cell. At least one optical element directs polychromatic light for supply to an interface of the metallic film under conditions of surface plasmon resonance (SPR) and directs polychromatic light reflected at the interface of the metallic film (which is sensitive to SPR at such interface and thus provides an SPR sensing region within the flow cell) for output to at least one spectrometer that measures spectral data of such polychromatic light. A computer processing system is configured to process the measured spectral data over time as the hydrocarbon-based analyte flows through the flow cell to determine SPR peak wavelength over time and to process the SPR peak wavelength over time to determine at least one property related to phase transition of the analyte.

公开(公告)号：US20170131204A1

公开(公告)日：2017-05-11

申请号：US15348721

申请日：2016-11-10

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Vincent Joseph Sieben ,  Kenneth John Chau ,  Shahnawaz Hossain Molla ,  Cailan Libby ,  Mohammed Al-Shakhs ,  Farshid Mostowfi ,  Simon Ivar Andersen ,  Elizabeth Jennings Smythe

IPC: G01N21/552 ,  G01N33/28

CPC classification number: G01N21/553 ,  G01N21/0332 ,  G01N25/02 ,  G01N33/28 ,  G01N33/2823 ,  G01N2021/1761

Abstract: An optical sensor and corresponding method of operation can detect a phase transition and/or related property of a hydrocarbon-based analyte. The optical sensor includes an optical element with a metallic film coupled or integral thereto, with a sample chamber holds the hydrocarbon-based analyte such that the hydrocarbon-based analyte is disposed adjacent the metallic layer. The optical sensor further includes a light source configured to direct light through the optical element such that the light is reflected by the metallic layer under conditions of surface plasmon resonance. The optical sensor analyzes the reflected light to detect a phase transition and/or related property of a hydrocarbon-based analyte.

公开(公告)号：US10281397B2

公开(公告)日：2019-05-07

申请号：US15348721

申请日：2016-11-10

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Vincent Joseph Sieben ,  Kenneth John Chau ,  Shahnawaz Hossain Molla ,  Cailan Libby ,  Mohammed Al-Shakhs ,  Farshid Mostowfi ,  Simon Ivar Andersen ,  Elizabeth Jennings Smythe

IPC: G01N21/552 ,  G01N33/28

Abstract: An optical sensor and corresponding method of operation can detect a phase transition and/or related property of a hydrocarbon-based analyte. The optical sensor includes an optical element with a metallic film coupled or integral thereto, with a sample chamber holds the hydrocarbon-based analyte such that the hydrocarbon-based analyte is disposed adjacent the metallic layer. The optical sensor further includes a light source configured to direct light through the optical element such that the light is reflected by the metallic layer under conditions of surface plasmon resonance. The optical sensor analyzes the reflected light to detect a phase transition and/or related property of a hydrocarbon-based analyte.

公开(公告)号：US10254216B2

公开(公告)日：2019-04-09

申请号：US15638443

申请日：2017-06-30

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Vincent Joseph Sieben ,  Kenneth John Chau ,  Shahnawaz Hossain Molla ,  Farshid Mostowfi ,  Elizabeth Jennings Smythe

IPC: G01N21/05 ,  G01N21/25 ,  G01N21/27 ,  G01N33/28 ,  G01N21/552

Abstract: An optical sensor includes a flow cell permitting flow of a hydrocarbon-based analyte therethrough. A metallic film is disposed adjacent or within the flow cell. At least one optical element directs polychromatic light for supply to an interface of the metallic film under conditions of surface plasmon resonance (SPR) and directs polychromatic light reflected at the interface of the metallic film (which is sensitive to SPR at such interface and thus provides an SPR sensing region within the flow cell) for output to at least one spectrometer that measures spectral data of such polychromatic light. A computer processing system is configured to process the measured spectral data over time as the hydrocarbon-based analyte flows through the flow cell to determine SPR peak wavelength over time and to process the SPR peak wavelength over time to determine at least one property related to phase transition of the analyte.