公开(公告)号：US20190195725A1

公开(公告)日：2019-06-27

申请号：US16183072

申请日：2018-11-07

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Jason M. Bylsma ,  Allan Vaitses

IPC: G01M3/38 ,  G01N21/3504 ,  G01N21/85 ,  G01N33/00 ,  G01N21/31 ,  G01N21/359

CPC classification number: G01M3/38 ,  G01F1/661 ,  G01J2003/2826 ,  G01N21/31 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/85 ,  G01N33/0036 ,  G01N2021/3513 ,  G01N2021/3531 ,  G01N2021/8578 ,  Y02A50/25

Abstract: This invention consists of sensors and algorithms to image, detect, and quantify the presence of hydrocarbon gas (for example from leaks) using a short-wave infrared radiation detector array with multiple spectral filters under natural sunlight or artificial illumination, in combination with the hydrodynamics of turbulent gas jets and buoyant plumes. Multiple embodiments are recited and address detection and quantification of methane gas leaks. Quantification includes gas column densities, gas concentration estimates, total mass, hole size estimates, and estimated emission flux (leak rate) of gas from holes and cracks in pressurized vessels, pipes, components, and general gas infrastructure, and from surface patches (for example due to gas leaks in underground pipes) under the action of buoyancy and wind. These and similar embodiments are applicable more generally to natural gas and other hydrocarbon gases, liquids, emulsions, solids, and particulates, and to emissions monitoring of greenhouse gases methane and carbon dioxide.

公开(公告)号：US20170336281A1

公开(公告)日：2017-11-23

申请号：US15598052

申请日：2017-05-17

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Jason M. Bylsma ,  Allan Vaitses

IPC: G01M3/38 ,  G01N21/85 ,  G01N21/31 ,  G01N33/00 ,  G01F1/66

CPC classification number: G01M3/38 ,  G01F1/661 ,  G01J2003/2826 ,  G01N21/31 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/85 ,  G01N33/0036 ,  G01N2021/3531 ,  Y02A50/25

Abstract: This invention consists of sensors and algorithms to image, detect, and quantify the presence of hydrocarbon gas (for example from leaks) using a short-wave infrared radiation detector array with multiple spectral filters under natural sunlight or artificial illumination, in combination with the hydrodynamics of turbulent gas jets and buoyant plumes. Multiple embodiments are recited and address detection and quantification of methane gas leaks. Quantification includes gas column densities, gas concentration estimates, total mass, hole size estimates, and estimated emission flux (leak rate) of gas from holes and cracks in pressurized vessels, pipes, components, and general gas infrastructure, and from surface patches (for example due to gas leaks in underground pipes) under the action of buoyancy and wind. These and similar embodiments are applicable more generally to natural gas and other hydrocarbon gases, liquids, emulsions, solids, and particulates, and to emissions monitoring of greenhouse gases methane and carbon dioxide.

公开(公告)号：US11143572B2

公开(公告)日：2021-10-12

申请号：US16183072

申请日：2018-11-07

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Jason M. Bylsma ,  Allan Vaitses

IPC: G01M3/38 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/31 ,  G01N21/85 ,  G01N33/00 ,  G01J3/28 ,  G01F1/66

Abstract: This invention consists of sensors and algorithms to image, detect, and quantify the presence of hydrocarbon gas (for example from leaks) using a short-wave infrared radiation detector array with multiple spectral filters under natural sunlight or artificial illumination, in combination with the hydrodynamics of turbulent gas jets and buoyant plumes. Multiple embodiments are recited and address detection and quantification of methane gas leaks. Quantification includes gas column densities, gas concentration estimates, total mass, hole size estimates, and estimated emission flux (leak rate) of gas from holes and cracks in pressurized vessels, pipes, components, and general gas infrastructure, and from surface patches (for example due to gas leaks in underground pipes) under the action of buoyancy and wind. These and similar embodiments are applicable more generally to natural gas and other hydrocarbon gases, liquids, emulsions, solids, and particulates, and to emissions monitoring of greenhouse gases methane and carbon dioxide.

公开(公告)号：US10436710B2

公开(公告)日：2019-10-08

申请号：US16183045

申请日：2018-11-07

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Jason M. Bylsma ,  Allan Vaitses

IPC: G01N21/3518 ,  G01M3/38 ,  G01F1/76 ,  G01J3/06 ,  G01J3/42 ,  G01J3/44 ,  G01J5/00 ,  G01N21/3504 ,  G01N21/31

Abstract: Apparatus and methods for rapidly detecting, localizing, imaging, and quantifying leaks of natural gas and other hydrocarbon and greenhouse gases. Scanning sensors, scan patterns, and data processing algorithms enable monitoring a site to rapidly detect, localize, image, and quantify amounts and rates of hydrocarbon leaks. Multispectral short-wave infrared detectors sense non-thermal infrared radiation from natural solar or artificial illumination sources by differential absorption spectroscopy. A multispectral sensor is scanned to envelop an area of interest, detect the presence and location of a leak, and raster scan the area around the leak to create an image of the leak. The resulting absorption image related to differential spectral optical depth is color mapped to render the degree of gas absorption across the scene. Analysis of this optical depth image, with factors including known inline pressures and/or surface wind speed measurements, enable estimation of the leak rate, i.e., emission mass flux of gas.

公开(公告)号：US20190137390A1

公开(公告)日：2019-05-09

申请号：US16183045

申请日：2018-11-07

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Jason M. Bylsma ,  Allan Vaitses

IPC: G01N21/3518 ,  G01M3/38 ,  G01F1/76

Abstract: Apparatus and methods for rapidly detecting, localizing, imaging, and quantifying leaks of natural gas and other hydrocarbon and greenhouse gases. Scanning sensors, scan patterns, and data processing algorithms enable monitoring a site to rapidly detect, localize, image, and quantify amounts and rates of hydrocarbon leaks. Multispectral short-wave infrared detectors sense non-thermal infrared radiation from natural solar or artificial illumination sources by differential absorption spectroscopy. A multispectral sensor is scanned to envelop an area of interest, detect the presence and location of a leak, and raster scan the area around the leak to create an image of the leak. The resulting absorption image related to differential spectral optical depth is color mapped to render the degree of gas absorption across the scene. Analysis of this optical depth image, with factors including known inline pressures and/or surface wind speed measurements, enable estimation of the leak rate, i.e., emission mass flux of gas.

公开(公告)号：US10197470B2

公开(公告)日：2019-02-05

申请号：US15598052

申请日：2017-05-17

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Jason M. Bylsma ,  Allan Vaitses

IPC: G01M3/38 ,  G01N21/31 ,  G01N21/85 ,  G01N33/00 ,  G01N21/3504 ,  G01N21/359 ,  G01F1/66 ,  G01J3/28

Abstract: This invention consists of sensors and algorithms to image, detect, and quantify the presence of hydrocarbon gas (for example from leaks) using a short-wave infrared radiation detector array with multiple spectral filters under natural sunlight or artificial illumination, in combination with the hydrodynamics of turbulent gas jets and buoyant plumes. Multiple embodiments are recited and address detection and quantification of methane gas leaks. Quantification includes gas column densities, gas concentration estimates, total mass, hole size estimates, and estimated emission flux (leak rate) of gas from holes and cracks in pressurized vessels, pipes, components, and general gas infrastructure, and from surface patches (for example due to gas leaks in underground pipes) under the action of buoyancy and wind. These and similar embodiments are applicable more generally to natural gas and other hydrocarbon gases, liquids, emulsions, solids, and particulates, and to emissions monitoring of greenhouse gases methane and carbon dioxide.

公开(公告)号：US10190976B2

公开(公告)日：2019-01-29

申请号：US15923794

申请日：2018-03-16

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Jason M. Bylsma ,  Allan Vaitses

IPC: G01N21/35 ,  G01N21/3518 ,  G01F1/76 ,  G01N21/3504 ,  G01M3/38

Abstract: Apparatus and methods for rapidly detecting, localizing, imaging, and quantifying leaks of natural gas and other hydrocarbon and greenhouse gases. Scanning sensors, scan patterns, and data processing algorithms enable monitoring a site to rapidly detect, localize, image, and quantify amounts and rates of hydrocarbon leaks. Multispectral short-wave infrared detectors sense non-thermal infrared radiation from natural solar or artificial illumination sources by differential absorption spectroscopy. A multispectral sensor is scanned to envelop an area of interest, detect the presence and location of a leak, and raster scan the area around the leak to create an image of the leak. The resulting absorption image related to differential spectral optical depth is color mapped to render the degree of gas absorption across the scene. Analysis of this optical depth image, with factors including known inline pressures and/or surface wind speed measurements, enable estimation of the leak rate, i.e., emission mass flux of gas.

公开(公告)号：US20180266944A1

公开(公告)日：2018-09-20

申请号：US15923794

申请日：2018-03-16

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Jason M. Bylsma ,  Allan Vaitses

IPC: G01N21/3518 ,  G01F1/76

CPC classification number: G01N21/3518 ,  G01F1/76 ,  G01M3/38 ,  G01N2021/3513

Abstract: Apparatus and methods for rapidly detecting, localizing, imaging, and quantifying leaks of natural gas and other hydrocarbon and greenhouse gases. Scanning sensors, scan patterns, and data processing algorithms enable monitoring a site to rapidly detect, localize, image, and quantify amounts and rates of hydrocarbon leaks. Multispectral short-wave infrared detectors sense non-thermal infrared radiation from natural solar or artificial illumination sources by differential absorption spectroscopy. A multispectral sensor is scanned to envelop an area of interest, detect the presence and location of a leak, and raster scan the area around the leak to create an image of the leak. The resulting absorption image related to differential spectral optical depth is color mapped to render the degree of gas absorption across the scene. Analysis of this optical depth image, with factors including known inline pressures and/or surface wind speed measurements, enable estimation of the leak rate, i.e., emission mass flux of gas.