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公开(公告)号：US12196635B2
公开(公告)日：2025-01-14
申请号：US18188967
申请日：2023-03-23
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
IPC: G01L1/24 , E21B47/007 , E21B47/135 , F17C13/02 , F17D5/00 , G02B6/02
Abstract: A system and method for detecting dynamic strain of a housing. The system includes an optical fiber linearly affixed along a surface of a length of the housing and an interrogator comprising a laser source and a photodetector. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths with a segment of the optical fiber extending between the FBGs. The segment of the optical fiber is linearly affixed along the surface of the housing. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.
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公开(公告)号：US20200249107A1
公开(公告)日：2020-08-06
申请号：US16679050
申请日：2019-11-08
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
Abstract: A device and system for detecting dynamic strain. The device comprises a longitudinally extending carrier and an optical fiber embedded along an outer surface of a length of the carrier. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths. The system comprises the device and an interrogator comprising a laser source and a photodetector. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.
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公开(公告)号：US20200057220A1
公开(公告)日：2020-02-20
申请号：US16485917
申请日：2018-02-09
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Neil Gulewicz , Robert Sokolowski , Alex Pletnyov , Souheil Merhi , Philip Cheuk , Seyed Ehsan Jalilian
IPC: G02B6/44
Abstract: There are described methods and systems for deploying optical fiber within a conduit. In one aspect, an optical fiber injector comprising a pressure vessel having a fluid inlet and a fluid outlet. The fluid outlet is engaged with an open end of the conduit. A length of optical fiber is provided within the pressure vessel. The optical fiber is then jetted into the conduit by injecting a fluid into the pressure vessel via the fluid inlet. The optical fiber injector is configured such that the fluid is directed from the fluid inlet to the fluid outlet, and urges the optical fiber to move through the conduit, thereby deploying the optical fiber within the conduit. In a further aspect, there is provided a modular assembly comprising a pipeline and a line of two or more conduits arranged end-to-end. Each pair of opposing ends of adjacent conduits is connected together by a separate splice box. The line is positioned along and adjacent to a length of the pipeline.
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公开(公告)号：US10281341B2
公开(公告)日：2019-05-07
申请号：US15575981
申请日：2016-05-19
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
Abstract: Described are methods and systems using optical fiber interferometry to sense interference causing events in a region of interest and differentiate between a strain event and a thermal event. Other methods and systems relate to the use of optical fiber interferometry for determining temperature offset in a region of interest and using the determined temperature offset for determining temperature in the region of interest.
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5.发明申请公开(公告)号：US20180320827A1
公开(公告)日：2018-11-08
申请号：US15773965
申请日：2016-11-03
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian , Oleksiy Pletnyov
CPC classification number: F17D5/02 , G01M3/2815
Abstract: Various embodiments provide a method of simulating a leak in a pipeline. The method includes: receiving a fluid stream from a fluid supply; and outputting the received fluid stream through an outlet such that the received fluid stream hits an outer surface of the pipeline at a location opposite the outlet such that a vibration is caused in the pipeline. Some other embodiments provide a corresponding system for simulating a leak in a pipeline, and a corresponding outlet for coupling a conduit to a pipeline.
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Patent Agency Ranking
公开(公告)号：US11243122B2
公开(公告)日：2022-02-08
申请号：US16358066
申请日：2019-03-19
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
Abstract: Described are methods and systems using optical fiber interferometry to sense interference causing events in a region of interest and differentiate between a strain event and a thermal event. Other methods and systems relate to the use of optical fiber interferometry for determining temperature offset in a region of interest and using the determined temperature offset for determining temperature in the region of interest.
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公开(公告)号：US20210247250A1
公开(公告)日：2021-08-12
申请号：US17243142
申请日：2021-04-28
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
IPC: G01L1/24 , E21B47/135 , G02B6/02 , F17D5/00 , F17C13/02 , E21B47/007
Abstract: A system and method for detecting dynamic strain of a housing. The system includes an optical fiber linearly affixed along a surface of a length of the housing and an interrogator comprising a laser source and a photodetector. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths with a segment of the optical fiber extending between the FBGs. The segment of the optical fiber is linearly affixed along the surface of the housing. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.
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8.发明授权公开(公告)号：US11085758B2
公开(公告)日：2021-08-10
申请号：US16805277
申请日：2020-02-28
Applicant: Hifi Engineering Inc.
Inventor： Seyed Ehsan Jalilian , John Hull , Daniel Huang , Adekunle Adeyemi
IPC: G01B11/16 , G01L1/24 , G01M3/00 , G01M3/24 , G01M3/38 , G01D5/353 , G01K11/3206 , G01B21/32 , G01H9/00
Abstract: Methods, systems, and techniques for determining whether an event has occurred from dynamic strain measurements involve determining, using a processor, at least one event parameter from a signal representing the dynamic strain measurements, and then having the processor use the at least one event parameter to determine whether the event has occurred. The at least one event parameter is any one or more of a measure of magnitude of the signal, frequency centroid of the signal, filtered baseline of the signal, harmonic power of the signal, and time-integrated spectrum flux of the signal.
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9.发明申请LOUDNESS BASED METHOD AND SYSTEM FOR DETERMINING RELATIVE LOCATION OF AN ACOUSTIC EVENT ALONG A CHANNEL 有权基于LOUDNESS的方法和系统，用于确定通道中的声音事件的相对位置公开(公告)号：US20140036627A1
公开(公告)日：2014-02-06
申请号：US13958358
申请日：2013-08-02
Applicant: HiFi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian , Philip Cheuk
CPC classification number: G01V1/001 , E21B47/101 , G01N29/07 , G01N29/11 , G01N29/14 , G01N29/36 , G01N29/44 , G01N29/4409 , G01N29/4454 , G01S5/18 , G01S5/186 , G01V1/288 , G01V2210/123 , G01V2210/65
Abstract: A method for determining relative location of an acoustic event along a channel such as a wellbore includes obtaining two acoustic signals at are obtained at two different and known depths in the wellbore, dividing the acoustic signals into windows, and determining the relative loudnesses of pairs of the windows. The power of the acoustic signals may be used as a proxy for the loudness of the acoustic event, and this determination can be made in the time or frequency domains. The relative depth of the acoustic event can then be determined relative to the two known depths from the relative loudnesses. The acoustic event may be, for example, casing vent flow, gas migration, a leak along a pipeline, or sounds observed in an observation well from a nearby well in which fracking is being performed.
Abstract translation: 用于确定声学事件沿着诸如井筒的通道的相对位置的方法包括获得在井筒中的两个不同的和已知的深度处获得的两个声信号，将声信号分成窗口，并且确定成对的相对响度 窗户。 声信号的功率可以用作声学事件的响度的代理，并且可以在时域或频域进行该确定。 然后可以相对于相对响度的两个已知深度确定声学事件的相对深度。 声学事件可以是例如套管排气流，气体迁移，沿着管道的泄漏，或者在其中进行压裂的附近井的观测井中观察到的声音。
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公开(公告)号：US11313744B2
公开(公告)日：2022-04-26
申请号：US16271623
申请日：2019-02-08
Applicant: Hifi Engineering Inc.
Inventor： John Hull , Seyed Ehsan Jalilian
IPC: G01B9/02 , G01L1/24 , E21B47/007 , E21B47/135 , G02B6/02 , F17D5/00 , F17C13/02
Abstract: A system and method for detecting dynamic strain of a housing. The system includes an optical fiber linearly affixed along a surface of a length of the housing and an interrogator comprising a laser source and a photodetector. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths with a segment of the optical fiber extending between the FBGs. The segment of the optical fiber is linearly affixed along the surface of the housing. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.
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