Clampless cable protector and installation system

    公开(公告)号:US10669835B2

    公开(公告)日:2020-06-02

    申请号:US15763900

    申请日:2015-11-18

    Abstract: A cable protector can include a first side bar welded along a length of a casing section. A second side bar can be welded along the length of the casing section. The second side bar can be positioned substantially parallel to the first side bar. A cable can be positioned between the first side bar and the second side bar. The cable can be positioned while the casing section is being run-in-hole. A cover strip can be welded on top of first side bar and the second side bar. The cover strip can be welded in place while the casing section is being run-in-hole.

    Method to compensate measurement error of fiber Bragg grating sensor caused by hydrogen darkening

    公开(公告)号:US10408694B2

    公开(公告)日:2019-09-10

    申请号:US16075848

    申请日:2016-06-07

    Abstract: A method is described for compensating measurement errors of fiber Bragg grating (FBG) sensors installed in fiber cables in down-hole oil and gas environments due to hydrogen darkening. The method involves loading a fiber of known length and multiple FBG sensors in a hydrogen chamber with control of temperature, hydrogen concentration, pressure, and time and adjusting each of the variables through a test matrix while continuously measuring and recording the fiber transmission loss and FBG spectrum changes, then creating a correlation map of fiber transmission loss vs. Bragg wavelength shift, and using that map for compensating the wavelength shift of downhole installed fiber cables as a function of their hydrogen induced transmission loss through time.

    Helix Hand Reversal Mitigation System and Method

    公开(公告)号:US20190094480A1

    公开(公告)日:2019-03-28

    申请号:US16081871

    申请日:2016-04-25

    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.

    Clampless Cable Protector And Installation System

    公开(公告)号:US20190055833A1

    公开(公告)日:2019-02-21

    申请号:US15763900

    申请日:2015-11-18

    Abstract: A cable protector can include a first side bar welded along a length of a casing section. A second side bar can be welded along the length of the casing section. The second side bar can be positioned substantially parallel to the first side bar. A cable can be positioned between the first side bar and the second side bar. The cable can be positioned while the casing section is being run-in-hole. A cover strip can be welded on top of first side bar and the second side bar. The cover strip can be welded in place while the casing section is being run-in-hole.

    Seismic monitoring below source tool

    公开(公告)号:US10120094B2

    公开(公告)日:2018-11-06

    申请号:US15310565

    申请日:2014-08-25

    Abstract: A sensory assembly and system can be used in a wellbore to detect and characterize the earth strata and formations around the wellbore, where a signal emitting sensory tool is part of a tool string deployed in the wellbore, and where weighted fiber optic cable is deployed in an extended position below the signal emitting sensory tool. The fiber optic cable is also part of wire-line, slickline, or coiled tubing injector head connected to the signal emitting sensory tool, thereby providing fiber optic cable both above and below the signal emitting sensory tool in position to collect backscatter signals from earth strata and formations around the wellbore. The collection of backscatter signals, particularly from below the signal emitting sensory tool, allows for more precise characterization of formations and fractures within the earth strata.

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