SYSTEMS AND METHODS FOR ISOLATION DETECTION USING A SYMMETRY INVARIANT LOG

    公开(公告)号:AU2023297915A1

    公开(公告)日:2025-01-09

    申请号:AU2023297915

    申请日:2023-06-28

    Abstract: Aspects of the present disclosure relate generally to analyzing subterranean cylindrical structures using acoustic sensing. On example includes: sending first acoustic waves in the wellbore via a radial acoustic sensor; receiving first reflection waves associated with the first acoustic waves via the radial acoustic sensor; sending second acoustic waves in the wellbore via the radial acoustic sensor; receiving second reflection waves associated with the second acoustic waves via the radial acoustic sensor; processing recorded data associated with the first acoustic waves, the first reflection waves, the second acoustic waves, and the second reflection waves, wherein the first acoustic waves are associated with a first radial direction, and wherein the second acoustic waves are associated with a second radial direction, the second radial direction being opposite the first radial direction; and generating a plot for identification of one or more isolation regions in the wellbore based on the processing.

    Systems and methods for determining well casing eccentricity

    公开(公告)号:AU2020370614A1

    公开(公告)日:2022-05-19

    申请号:AU2020370614

    申请日:2020-10-26

    Abstract: Implementations described and claimed herein provide systems and methods for isolation detection. In one implementation, a radial acoustic log is obtained. The radial acoustic log is captured using a radial sensor of an acoustic logging tool deployed within a first structure. The first structure disposed within a second structure in a subterranean environment. A radial symmetry is determined using the radial acoustic log. An eccentricity of the first structure relative to the second structure is determined based on the radial symmetry.

    Systems and methods for analyzing casing bonding in a well using radial sensing

    公开(公告)号:AU2020369669B2

    公开(公告)日:2025-03-06

    申请号:AU2020369669

    申请日:2020-10-26

    Abstract: Implementations described and claimed herein provide systems and methods for isolation detection. In one implementation, recorded data is obtained. The recorded data includes radial acoustic waves transmitted and received using a radial sensor of an acoustic logging tool deployed in a wellbore. Clockwise waves are separated from counterclockwise waves by converting the recorded data from a time domain to a frequency domain. The clockwise waves are shifted into shifted clockwise waves, and the counterclockwise waves are shifted into a shifted counterclockwise waves. A forward wave is generated by combining the shifted clockwise waves, and a reflected wave is generated by combining the shifted counterclockwise waves. One or more isolation regions are identified in the wellbore using the forward wave and the reflected wave.

    Systems and methods for analyzing casing bonding in a well using radial sensing

    公开(公告)号:AU2020369669A1

    公开(公告)日:2022-05-19

    申请号:AU2020369669

    申请日:2020-10-26

    Abstract: Implementations described and claimed herein provide systems and methods for isolation detection. In one implementation, recorded data is obtained. The recorded data includes radial acoustic waves transmitted and received using a radial sensor of an acoustic logging tool deployed in a wellbore. Clockwise waves are separated from counterclockwise waves by converting the recorded data from a time domain to a frequency domain. The clockwise waves are shifted into shifted clockwise waves, and the counterclockwise waves are shifted into a shifted counterclockwise waves. A forward wave is generated by combining the shifted clockwise waves, and a reflected wave is generated by combining the shifted counterclockwise waves. One or more isolation regions are identified in the wellbore using the forward wave and the reflected wave.

    Method and apparatus for acoustic assessment of fluid conduits

    公开(公告)号:AU2013282314A1

    公开(公告)日:2015-01-29

    申请号:AU2013282314

    申请日:2013-06-28

    Abstract: A method of and apparatus for assessing a condition of a fluid conduit is described. The method comprises providing a measurement apparatus comprising at least one wideband acoustic transducer internally or externally of a fluid conduit, and transmitting a wideband acoustic signal from the measurement apparatus to excite at least a portion of the fluid conduit. A wideband acoustic signal is received in the measurement apparatus to obtain a wideband acoustic data set; the wideband acoustic data set is analysed to assess the condition of the fluid conduit. The wideband acoustic signal comprises frequencies in the range of approximately 10 kHz to approximately 150 kHz. Applications include detecting or assessing a layer or deposit on an interior of the fluid conduit and assessing a physical condition of the fluid conduit. Water ingress into an annulus of a multiple layer conduit (such as a flexible riser) may be detected.

    Methods and apparatus for acoustic assessment of fluid conduits

    公开(公告)号:GB201211515D0

    公开(公告)日:2012-08-08

    申请号:GB201211515

    申请日:2012-06-28

    Abstract: A method of and apparatus for assessing a condition of a fluid conduit is described. The method comprises providing a measurement apparatus comprising at least one wideband acoustic transducer internally or externally of a fluid conduit, and transmitting a wideband acoustic signal from the measurement apparatus to excite at least a portion of the fluid conduit. A wideband acoustic signal is received in the measurement apparatus to obtain a wideband acoustic data set; the wideband acoustic data set is analysed to assess the condition of the fluid conduit. The wideband acoustic signal comprises frequencies in the range of approximately 10 kHz to approximately 150 kHz. Applications include detecting or assessing a layer or deposit on an interior of the fluid conduit and assessing a physical condition of the fluid conduit. Water ingress into an annulus of a multiple layer conduit (such as a flexible riser) may be detected.

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