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1. EP3143248 - EVALUATION TOOL FOR CONCENTRIC WELLBORE CASINGS

Office European Patent Office
Application Number 15818203
Application Date 10.07.2015
Publication Number 3143248
Publication Date 22.03.2017
Publication Kind A4
IPC
E21B 47/00
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
E21B 47/09
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
09Locating or determining the position of objects in boreholes or wells; Identifying the free or blocked portions of pipes
G01V 3/18
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
18specially adapted for well-logging
G01V 3/28
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
18specially adapted for well-logging
26operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
28using induction coils
CPC
E21B 47/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
E21B 47/092
G01V 3/28
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
3Electric or magnetic prospecting or detecting
18specially adapted for well-logging
26operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
28using induction coils
E21B 17/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods ; ; Cables; Casings; Tubings
G01N 27/82
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
72by investigating magnetic variables
82for investigating the presence of flaws
Applicants HALLIBURTON ENERGY SERVICES INC
Inventors KHALAJ AMINEH REZA
SAN MARTIN LUIS EMILIO
DONDERICI BURKAY
Designated States
Priority Data 201462023762 11.07.2014 US
2015039990 10.07.2015 US
Title
(DE) BEWERTUNGSWERKZEUG FÜR KONZENTRISCHE BOHRLOCHGEHÄUSE
(EN) EVALUATION TOOL FOR CONCENTRIC WELLBORE CASINGS
(FR) OUTIL D'ÉVALUATION POUR TUBAGES DE FORAGE CONCENTRIQUES
Abstract
(EN)
A system comprises one or more first electromagnetic coils configured to generate and direct first excitation signals toward a plurality of casings in a wellbore and receive response signals based on the excitation signals. The system also comprises a magnetic field source configured to generate a static magnetic field in a particular casing of the plurality of casings and a magnetometer configured to receive response signals based on the static magnetic field in the particular casing. The system further comprises one or more processors configured to receive a first response signal from the one or more electromagnetic coils, receive a second response signal from the magnetometer, and determine, based on the first response signal and the second response signal, whether a defect exists in the plurality of casings.

(FR)
La présente invention concerne un système qui comprend une ou plusieurs premières bobines électromagnétiques conçues pour générer et diriger des premiers signaux d'excitation vers une pluralité de tubages dans un forage et recevoir des signaux de réponse en fonction des signaux d'excitation. Le système comprend également une source de champ magnétique conçue pour générer un champ magnétique statique dans un tubage particulier parmi la pluralité de tubages et un magnétomètre conçu pour recevoir des signaux de réponse en fonction du champ magnétique statique dans le tubage particulier. Le système comprend en outre un ou plusieurs processeurs conçus pour recevoir un premier signal de réponse à partir de la ou des bobines électromagnétiques, recevoir un second signal de réponse du magnétomètre, et déterminer, en fonction du premier signal de réponse et du second signal de réponse, si un défaut existe dans la pluralité de tubages.

Also published as
IDIDP00201608018
SA516380474