Title: System and method for monitoring a wellbore

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.

Inventors:

Kasten, Ansas Matthias; Price, John Scott; Cilia, Juan Pablo

Issue Date:

2018-07-17

Research Org.:

National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1464621

Patent Number(s):

10024999

Application Number:

15/688,113

Assignee:

General Electric Company (Schenectady, NY)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

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G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

G01T1/2002 - {Optical details, e.g. reflecting or diffusing layers}
G01T1/2018 - {Scintillation-photodiode combination}

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

G01V5/125 - {and detecting the secondary gamma- or X-rays in different places along the bore hole}
G01V5/12 - using gamma or X-ray sources {

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DOE Contract Number:  

FE0024293

Resource Type:

Patent

Resource Relation:

Patent File Date: 2017 Aug 28

Country of Publication:

United States

Language:

English