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    DRA DAS SYSTEM
    2.
    发明申请
    DRA DAS SYSTEM 审中-公开

    公开(公告)号：US20200319358A1

    公开(公告)日：2020-10-08

    申请号：US16303370

    申请日：2016-07-22

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Mikko Jaaskelainen ,  Jason Edward Therrien ,  Seldon David Benjamin

    IPC: G01V1/20 ,  G01V1/52 ,  E21B47/135

    Abstract: Disclosed is a system and method for improving the performance of downhole Distributed Acoustic Sensing (DAS) systems by simultaneous use of co-propagating and counter-propagating Distributed Raman Amplification (DRA). It uses a surface DRA system with a surface DAS system to combine their laser sources where the distal end of the downhole sensing fiber use a Wavelength Division Multiplexer (WDM) to optically split the DRA and DAS signals onto two optical fibers. The DAS fiber/signal is terminated with a low reflectance termination to minimize a potential back reflection whereas the DRA fiber is terminated with a high reflectance termination causing all the light to reflect back up the sensing fiber. This arrangement allows for simultaneous co and counter-propagating DRA of the DAS signals, both the transmitted pulse and the back scattered light, thus creating the maximum amount of gain possible.

    Downhole Fiber Installation Equipment and Method
    3.
    发明申请
    Downhole Fiber Installation Equipment and Method 有权

    公开(公告)号：US20230026207A1

    公开(公告)日：2023-01-26

    申请号：US17936627

    申请日：2022-09-29

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Brian Vandellyn Park ,  Mikko Jaaskelainen ,  Seldon David Benjamin ,  Jason Edward Therrien

    IPC: E21B23/14 ,  E21B47/135 ,  E21B17/20 ,  G02B6/50 ,  E21B47/12

    Abstract: Various embodiments include methods and apparatus structured to install an optical fiber cable into a well at a well site. In a from-bottom-to-top embodiment, an anchor deployed at a selected location in a hole of the well can be used and the optical fiber cable can be pulled up to a surface of the well from the selected location. In a from-top-to-bottom embodiment, an optical fiber cable can be moved down from the surface until an end of the optical fiber cable is locked at a selected location by a catcher disposed at the selected location. With the optical fiber cable in the well, a portion of the optical fiber cable can be coupled to surface instrumentation. Additional apparatus, systems, and methods can be implemented in a variety of applications.

    DRA DAS system
    4.
    发明授权
    DRA DAS system 有权

    公开(公告)号：US11366243B2

    公开(公告)日：2022-06-21

    申请号：US16303370

    申请日：2016-07-22

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Mikko Jaaskelainen ,  Jason Edward Therrien ,  Seldon David Benjamin

    IPC: G01V1/20 ,  E21B47/135 ,  G01V1/52

    Abstract: Disclosed is a system and method for improving the performance of downhole Distributed Acoustic Sensing (DAS) systems by simultaneous use of co-propagating and counter-propagating Distributed Raman Amplification (DRA). It uses a surface DRA system with a surface DAS system to combine their laser sources where the distal end of the downhole sensing fiber use uses a Wavelength Division Multiplexer (WDM) to optically split the DRA and DAS signals onto two optical fibers. The DAS fiber/signal is terminated with a low reflectance termination to minimize a potential back reflection whereas the DRA fiber is terminated with a high reflectance termination causing all the light to reflect back up the sensing fiber. This arrangement allows for simultaneous co and counter-propagating DRA of the DAS signals, both the transmitted pulse and the back scattered light, thus creating the maximum amount of gain possible.

    Helix Hand Reversal Mitigation System and Method
    9.
    发明申请
    Helix Hand Reversal Mitigation System and Method 审中-公开

    公开(公告)号：US20190094480A1

    公开(公告)日：2019-03-28

    申请号：US16081871

    申请日：2016-04-25

    Applicant: Halliburton Energy Services, Inc.

    Inventor： Mikko Jaaskelainen ,  Jason Edward Therrien ,  Seldon David Benjamin

    IPC: G02B6/44 ,  G02B6/52 ,  E21B19/22 ,  E21B47/12

    Abstract: A cable introduction assembly that can include: a spool assembly including a spool having a first axis, the spool configured to retain a cable wound around the first axis in an undeployed mode; and a spool mount assembly configured to retain the spool and introduce the cable in a deployed mode into a conduit configured for a downhole environment, the conduit having a proximal end and a distal end, the cable in the deployed mode extending from the proximal end towards the distal end, wherein the spool assembly is configured to provide a handedness to the cable in the deployed mode.

    Downhole fiber installation equipment and method
    10.
    发明授权
    Downhole fiber installation equipment and method 有权

    公开(公告)号：US11486215B2

    公开(公告)日：2022-11-01

    申请号：US16325996

    申请日：2016-10-10

    Applicant: HALLIBURTON ENERGY SERVICES, INC.

    Inventor： Brian Vandellyn Park ,  Mikko Jaaskelainen ,  Seldon David Benjamin ,  Jason Edward Therrien

    IPC: E21B23/14 ,  E21B47/135 ,  E21B17/20 ,  G02B6/50

    Abstract: Various embodiments include methods and apparatus structured to install an optical fiber cable into a well at a well site. In a from-bottom-to-top embodiment, an anchor deployed at a selected location in a hole of the well can be used and the optical fiber cable can be pulled up to a surface of the well from the selected location. In a from-top-to-bottom embodiment, an optical fiber cable can be moved down from the surface until an end of the optical fiber cable is locked at a selected location by a catcher disposed at the selected location. With the optical fiber cable in the well, a portion of the optical fiber cable can be coupled to surface instrumentation. Additional apparatus, systems, and methods can be implemented in a variety of applications.

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