In situ leakage detection system for buried nonmetallic pipeline

    公开(公告)号:US11808663B2

    公开(公告)日:2023-11-07

    申请号:US17343475

    申请日:2021-06-09

    CPC classification number: G01M3/002 G01M3/18 G01M3/38

    Abstract: An in situ leakage detection system for protecting and monitoring buried non-metallic pipelines is provided. The system includes flexible composite mats arranged below and above the pipeline. Sensors, including, distributed optical fiber sensors (DOFS) are affixed to the pipe-facing mat surfaces and extend lengthwise along the pipeline. An optical time domain reflectometry (OTDR) reading unit is configured to provide optical signals to the DOFS and analyze the returned optical signal. The OTDR unit can measure frequency and amplitude of anti-Stoke components of Raman scattering signals and a time-distance of the signals to detect localized changes in temperature along the pipeline. The system is further configured to detect leaks and determine a location of the leaks from the foregoing temperature changes and time-distance information. A method of installing and operating an in situ leakage detection system is also provided.

    DETERMINING SEVERITY OF STEPWISE CRACKING IN A PRESSURIZED VESSEL

    公开(公告)号:US20240142407A1

    公开(公告)日:2024-05-02

    申请号:US17974241

    申请日:2022-10-26

    CPC classification number: G01N29/069 G01N29/043 G01N29/0609

    Abstract: To determine severity of stepwise cracking in a pressurized vessel, a computer system receives an image collection of an area of a circumferential wall of the vessel. The image collection includes images distributed across the area, and represent respective cracks on the wall within the area. From among the images, the computer system identifies subsets of images, each including images of adjacent cracks. For the at least two images in each subset, the computer system determines multiple distances, each between an end of an image in each subset and an end of each other image in a subset. Based on the determined multiple distances, the computer system determines a probability of a crack propagating through cracks in each subset. Based on the crack intensity path determined for each subset of the multiple subsets, the computer system determines an operation to be performed on the vessel.

    AUTOMATED HYDROCARBON TRANSPORT PIPELINE FAILURE CATEGORIZATION USING IMAGE RECOGNITION

    公开(公告)号:US20230323768A1

    公开(公告)日:2023-10-12

    申请号:US17658775

    申请日:2022-04-11

    CPC classification number: E21B47/117 E21B47/002 E21B2200/22

    Abstract: The present disclosure provides computer-implemented methods, media, and systems for automated hydrocarbon transport pipeline failure categorization using image recognition. One example method includes storing multiple pipeline images into an image library, where each pipeline image includes an image of a segment of one of multiple hydrocarbon transport pipelines, the image including one or more patterns of a failure associated with the segment, the failure is associated with one of multiple pipeline failure modes. A convolutional neural network (CNN) is trained using the image library to categorize the multiple pipeline failure modes. An image of a pipeline is received, the pipeline includes a segment with a pipeline failure. The pipeline failure is categorized according to the multiple pipeline failure modes, by processing the image of the pipeline using the CNN. The categorized pipeline failure is provided for generation of a preliminary failure analysis report of the pipeline.

    Automated System and Installation Process for a Flexible Mat Fabric

    公开(公告)号:US20220316166A1

    公开(公告)日:2022-10-06

    申请号:US17223692

    申请日:2021-04-06

    Abstract: A vehicle is provided for installing in a prepared area along a ground surface a protective structural support proximate a buried pipeline in an automated manner. The vehicle includes a chassis with a plurality of wheels and a payload release mechanism coupled to the chassis and including a roller for holding the protective structural support. The payload release mechanism is configured to dispense and lay down the protective structural support in the prepared area. The vehicle includes a liquid dispensing mechanism that is coupled to the chassis and is located downstream of the payload release mechanism. The liquid dispensing mechanism includes a liquid source and a dispenser that is in fluid communication with the liquid source and is configured to dispense liquid across a spray area.

    SYSTEM AND METHOD FOR DEPLOYING VOLATILE CORROSION INHIBITOR TO PROTECT AGAINST SOIL SIDE CORROSION AT THE BOTTOM OF A STORAGE TANK

    公开(公告)号:US20220395879A1

    公开(公告)日:2022-12-15

    申请号:US17348178

    申请日:2021-06-15

    Abstract: A system and method for delivering volatile corrosion inhibitor (VCI) for protecting against external corrosion to the bottom, soil-side, surface of a storage tank is disclosed. The VCI delivery system can include a transport material buried underneath the tank and a carrier structure for containing the transport material. VCI can be supplied to the transport material from an external VCI storage tank and the supply regulated by a control valve. The transport material is configured to adaptively and controllably release VCI into the soil in response an external stimulus. The transport material can passively adjust the VCI release rate as a function of a stimulus including pH or soil potential. Additionally, a control system can monitor soil conditions and generate the stimulus that triggers the release of the VCI. Also disclosed are systems and methods for deploying the VCI delivery system under the tank using horizontal drilling techniques.

    Automated system and installation process for a flexible mat fabric

    公开(公告)号:US11619019B2

    公开(公告)日:2023-04-04

    申请号:US17223692

    申请日:2021-04-06

    Abstract: A vehicle is provided for installing in a prepared area along a ground surface a protective structural support proximate a buried pipeline in an automated manner. The vehicle includes a chassis with a plurality of wheels and a payload release mechanism coupled to the chassis and including a roller for holding the protective structural support. The payload release mechanism is configured to dispense and lay down the protective structural support in the prepared area. The vehicle includes a liquid dispensing mechanism that is coupled to the chassis and is located downstream of the payload release mechanism. The liquid dispensing mechanism includes a liquid source and a dispenser that is in fluid communication with the liquid source and is configured to dispense liquid across a spray area.

Patent Agency Ranking