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1. WO2019046861 - SYSTEM AND METHOD FOR MONITORING INTEGRITY OF A WELLBORE

Publication Number WO/2019/046861
Publication Date 07.03.2019
International Application No. PCT/US2018/051189
International Filing Date 14.09.2018
IPC
G01V 5/08 2006.1
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
5Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
04specially adapted for well-logging
08using primary nuclear radiation sources or X-rays
E21B 47/00 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
47Survey of boreholes or wells
G01N 23/203 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
23Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/-G01N17/178
20by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
203Measuring back scattering
G01T 1/20 2006.1
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
20with scintillation detectors
CPC
E21B 47/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
E21B 47/0025
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
002by visual inspection
0025generating an image of the borehole wall using down-hole measurements, e.g. acoustic or electric
E21B 47/103
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
10Locating fluid leaks, intrusions or movements
103using thermal measurements
E21B 47/113
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
10Locating fluid leaks, intrusions or movements
113using electrical indications; using light radiations
E21B 47/117
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
10Locating fluid leaks, intrusions or movements
117Detecting leaks, e.g. from tubing, by pressure testing
G01T 1/2018
GPHYSICS
01MEASURING; TESTING
TMEASUREMENT OF NUCLEAR OR X-RADIATION
1Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
16Measuring radiation intensity
20with scintillation detectors
2018Scintillation-photodiode combinations
Applicants
  • GENERAL ELECTRIC COMPANY [US]/[US]
Inventors
  • KASTEN, Ansas, Matthias
  • PRICE, John, Scott
  • CILIA, Juan, Pablo
  • WANG, Chengbao
  • ROSS, William, Robert
  • YANOFF, Brian, David
  • SOLOVIEV, Stanislav, Ivanovich
  • MANDAL, Sudeep
Agents
  • POLLANDER, Laura L.
  • ZHANG, Douglas, D.
  • MIDGLEY, Stephen, G.
  • POLLANDER, Laura, L.
  • DIMAURO, Peter, T.
Priority Data
15/688,10928.08.2017US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR MONITORING INTEGRITY OF A WELLBORE
(FR) SYSTÈME ET PROCÉDÉ POUR SURVEILLER L'INTÉGRITÉ D'UN PUITS DE FORAGE
Abstract
(EN) 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.
(FR) La présente invention concerne un ensemble détecteur qui comprend des scintillateurs configurés pour générer un signal lumineux en réponse à un signal de rétrodiffusion incident, les scintillateurs étant agencés en un premier motif, une pluralité de premiers détecteurs, chaque premier détecteur étant couplé à un scintillateur et configuré pour recevoir une première partie d'un signal lumineux en provenance de ce scintillateur, et les premiers détecteurs étant agencés en un deuxième motif aligné avec le premier motif, une pluralité de seconds détecteurs, chaque second détecteur étant disposé de façon adjacente à un scintillateur et configuré pour recevoir une seconde partie du signal lumineux en provenance du scintillateur, et la pluralité de seconds détecteurs étant agencés en un troisième motif, et un collimateur de scintillateur comprenant une pluralité d'ouvertures et étant configuré pour recevoir sélectivement le signal de rétrodiffusion, l'ensemble détecteur étant configuré pour fournir une résolution de profondeur, une résolution azimutale, un type de défaut, une taille de défaut, ou des associations de ceux-ci.
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