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公开(公告)号：US10400574B2
公开(公告)日：2019-09-03
申请号：US15688102
申请日：2017-08-28
Applicant: General Electric Company
Inventor： Ansas Matthias Kasten , Juan Pablo Cilia , John Scott Price , William Robert Ross , Chengbao Wang , Sudeep Mandal
Abstract: An apparatus for inspecting integrity of a multi-barrier wellbore is described. The apparatus includes at least one source to generate radiation to impinge a target volume of the wellbore. The apparatus includes a source collimator having a plurality of alternating blocking channels and passing channels to direct radiation to impinge the target volume, such that the radiation directed from each passing channel forms a plurality of field of views extending radially into the target volume. The apparatus further includes at least one detector to receive backscatter rays arising from each respective field of view from the plurality of field of views and to generate an image representative of an inspected portion of the wellbore. The apparatus is useful for inspecting very small volumes in the multiple barriers of the wellbore and determine the integrity of the wellbore based on the different densities in the image of the inspected portion.
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公开(公告)号：US10208587B1
公开(公告)日：2019-02-19
申请号：US15688109
申请日：2017-08-28
Applicant: General Electric Company
Inventor： Ansas Matthias Kasten , John Scott Price , Juan Pablo Cilia , Chengbao Wang , William Robert Ross , Brian David Yanoff , Stanislav Ivanovich Soloviev , Sudeep Mandal
Abstract: A detector assembly includes scintillators configured to generate a light signal in response to an impinging backscatter signal, where the scintillators are arranged in a first pattern, a plurality of first detectors, where each first detector is coupled to a scintillator and configured to receive a first portion of a light signal from that scintillator, and where the first detectors are arranged in a second pattern aligned with the first pattern, a plurality of second detectors, where each second detector is disposed adjacent a scintillator and configured to receive a second portion of the light signal from that scintillator, and where the plurality of second detectors is arranged in a third pattern, and a scintillator collimator including a plurality of openings and configured to selectively receive the backscatter signal, where the detector assembly is configured to provide depth resolution, azimuthal resolution, a defect type, a defect size, or combinations thereof.
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公开(公告)号：US08976935B2
公开(公告)日：2015-03-10
申请号：US13723275
申请日：2012-12-21
Applicant: General Electric Company
Inventor： Prabhjot Singh , Garth M Nelson , Brian David Yanoff , Juan Pablo Cilia
CPC classification number: G21K1/02 , A61B6/4233 , A61B6/4291 , Y10T29/49989
Abstract: A collimator grid and a method of fabricating the collimator grid are disclosed. The method includes molding a plurality of plates, each plate includes a plurality of grooves in a first surface, a plurality of fin tips in a second surface disposed opposite to the first surface, plurality of ribs on a first pair of peripheral sides, a plurality of first fiducials formed on the plurality of ribs, and a plurality of second fiducials formed on a second pair of peripheral sides. The method includes machining the second surface to form the plurality of fins having predefined dimensions. Further, the method includes stacking the plurality of plates overlapping each other based on the plurality of first fiducials, and machining the plurality of ribs and first fiducials to form the collimator grid.
Abstract translation: 公开了准直器栅格和制造准直器栅格的方法。 该方法包括成型多个板，每个板包括在第一表面中的多个槽，在与第一表面相对设置的第二表面中的多个翅片尖端，在第一对外围侧上的多个肋，多个 形成在所述多个肋上的第一基准以及形成在第二对外围侧上的多个第二基准。 该方法包括加工第二表面以形成具有预定尺寸的多个翅片。 此外，该方法包括基于多个第一基准堆叠彼此重叠的多个板，并且加工多个肋和第一基准以形成准直器格栅。
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