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1. EP3455582 - REMOTE-FIELD EDDY CURRENT CHARACTERIZATION OF PIPES

Office European Patent Office
Application Number 16912849
Application Date 12.08.2016
Publication Number 3455582
Publication Date 20.03.2019
Publication Kind A4
IPC
G01B 7/06
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
7Measuring arrangements characterised by the use of electric or magnetic means
02for measuring length, width, or thickness
06for measuring thickness
E21B 47/08
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
08Measuring diameters or related dimensions at the borehole
G01N 27/02
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
02by investigating impedance
G01N 27/90
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
90using eddy currents
CPC
E21B 47/085
E21B 47/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
G01B 7/06
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
7Measuring arrangements characterised by the use of electric or magnetic means
02for measuring length, width or thickness
06for measuring thickness
G01N 27/028
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
02by investigating the impedance of the material
028Circuits therefor
G01N 27/9046
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
90using eddy currents
9046by analysing electrical signals
E21B 47/082
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
08Measuring the diameter
082using radiant means, e.g. acoustic, radioactive, electromagnetic
Applicants HALLIBURTON ENERGY SERVICES INC
Inventors KHALAJ AMINEH REZA
SAN MARTIN LUIS EMILIO
DONDERICI BURKAY
Designated States
Priority Data 2016046823 12.08.2016 US
Title
(DE) REMOTE-FILD-WIRBELSTROMCHARAKTERISIERUNG VON ROHREN
(EN) REMOTE-FIELD EDDY CURRENT CHARACTERIZATION OF PIPES
(FR) CARACTÉRISATION DE TUYAUX À COURANTS DE FOUCAULT CHAMP LOINTAIN
Abstract
(EN)
Described are various approaches for estimating the total thickness of a set of pipes from the phase of the mutual impedance between transmitter and receiver measured with an eddy-current logging tool disposed interior to the pipes, in conjunction with a simulated functional relationship between the phase and the total thickness.

(FR)
On décrit diverses approches pour estimer l'épaisseur totale d'un ensemble de tuyaux à partir de la phase de l'impédance mutuelle entre l'émetteur et le récepteur, mesurée avec un outil de diagraphie à courants de Foucault disposé à l'intérieur des tuyaux, conjointement à une relation fonctionnelle simulée entre la phase et l'épaisseur totale.