公开(公告)号：WO2019046862A2

公开(公告)日：2019-03-07

申请号：PCT/US2018/051192

申请日：2018-09-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： KASTEN, Ansas, Matthias ,  CILIA, Juan, Pablo ,  PRICE, John, Scott ,  ROSS, William, Robert ,  WANG, Chengbao ,  MANDAL, Sudeep

IPC: E21B47/10 ,  G01N23/02

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.

公开(公告)号：WO2019046863A1

公开(公告)日：2019-03-07

申请号：PCT/US2018/051197

申请日：2018-09-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： KASTEN, Ansas, Matthias ,  PRICE, John, Scott ,  CILIA, Juan, Poblo

IPC: G01V5/12 ,  E21B47/00 ,  G01T1/20

Abstract: A detector assembly includes a scintillator configured to generate a light signal in response to an impinging radiation signal from an object, where the scintillator has a first end and a second end. Further, the detector assembly includes a first detector disposed adjacent the scintillator and configured to receive a first portion of the light signal from the scintillator and a second detector operatively coupled to the second end of the scintillator and configured to receive a second portion of the light signal from the scintillator. The detector assembly also includes a reflector operatively coupled to the scintillator and the first detector and configured to guide the light signal from the scintillator to the first detector, where the reflector is configured to redirect the first portion of the light signal by a determined amount to reduce a path length between a radiation source, the object, and the scintillator.

公开(公告)号：WO2015148194A1

公开(公告)日：2015-10-01

申请号：PCT/US2015/021139

申请日：2015-03-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： CHALLENER, William, Albert ,  DEKATE, Sachin, Narahari ,  PALIT, Sabami ,  KASTEN, Ansas, Matthias ,  GHANDI, Reza

IPC: G01L9/00

CPC classification number: G01N29/42 ,  B81B7/02 ,  E21B47/06 ,  G01D5/266 ,  G01D5/285 ,  G01L9/0011 ,  G01N29/2418 ,  G01N2291/014 ,  G01N2291/02872 ,  G01N2291/02881

Abstract: A sensor interrogation unit in one embodiment includes a control module, a reading module, and a determination module. The control module is configured to control one or more lasers to provide a pulsed signal to at least one sensor. Each period of the pulsed signal has a first component having a first intensity and a second component having a second intensity that is lower than the first intensity. The reading module is configured to receive at least one return signal comprising reflections of the pulsed signal from the at least one sensor, to read one of the first component or the second component, and to provide frequency information based on the read reflections. The determination module is configured to determine at least one resonant frequency of the at least one sensor based on the frequency information.

Abstract translation: 一个实施例中的传感器询问单元包括控制模块，读取模块和确定模块。 控制模块被配置为控制一个或多个激光器以向至少一个传感器提供脉冲信号。 脉冲信号的每个周期具有具有第一强度的第一分量和具有低于第一强度的第二强度的第二分量。 读取模块被配置为接收包括来自至少一个传感器的脉冲信号的反射的至少一个返回信号，以读取第一部件或第二部件中的一个，并且基于读取的反射来提供频率信息。 确定模块被配置为基于频率信息来确定至少一个传感器的至少一个谐振频率。

公开(公告)号：WO2019046861A1

公开(公告)日：2019-03-07

申请号：PCT/US2018/051189

申请日：2018-09-14

Applicant: GENERAL ELECTRIC COMPANY

Inventor： KASTEN, Ansas, Matthias ,  PRICE, John, Scott ,  CILIA, Juan, Pablo ,  WANG, Chengbao ,  ROSS, William, Robert ,  YANOFF, Brian, David ,  SOLOVIEV, Stanislav, Ivanovich ,  MANDAL, Sudeep

IPC: G01V5/08 ,  E21B47/00 ,  G01N23/203 ,  G01T1/20

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.