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1. WO2020197928 - ENHANCED CEMENT BOND AND MICRO-ANNULUS DETECTION AND ANALYSIS

Publication Number WO/2020/197928
Publication Date 01.10.2020
International Application No. PCT/US2020/023618
International Filing Date 19.03.2020
IPC
E21B 47/00 2006.01
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 49/00 2006.01
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
49Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
G01V 3/18 2006.01
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
E21B 43/10 2006.01
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
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
02Subsoil filtering
10Setting of casings, screens or liners in wells
CPC
E21B 33/14
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
33Sealing or packing boreholes or wells
10in the borehole
13Methods or devices for cementing, for plugging holes, crevices, or the like
14for cementing casings into boreholes
E21B 47/005
G01N 2291/2636
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
26Scanned objects
263Surfaces
2636cylindrical from inside
G01N 29/041
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
04Analysing solids
041on the surface of the material, e.g. using Lamb, Rayleigh or shear waves
G01N 29/09
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
04Analysing solids
09by measuring mechanical or acoustic impedance
Applicants
  • BAKER HUGHES OILFIELD OPERATIONS LLC [US]/[US]
Inventors
  • MATUSZYK, Pawel, J.
  • PATTERSON, Douglas, J.
Agents
  • CARSON, Matt, W.
Priority Data
16/822,79718.03.2020US
62/822,38222.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ENHANCED CEMENT BOND AND MICRO-ANNULUS DETECTION AND ANALYSIS
(FR) ADHÉSIVITÉ DU CIMENT AMÉLIORÉE ET DÉTECTION ET ANALYSE D'ESPACE ANNULAIRE MICROSCOPIQUE
Abstract
(EN)
Methods and apparatus for inspecting oilfield infrastructure components. Methods include methods of identifying a micro-annulus outside a casing in a cemented wellbore. Methods may include transmitting an acoustic pulse incident on the casing; making a measurement of a first acoustic impedance property value from pulse-echo information generated responsive to an echo of the acoustic pulse reflected from the casing; propagating a circumferential guided wave in the casing; making a measurement of a second acoustic impedance property value from propagating wave information generated responsive to the propagating acoustic wave; and determining from the first acoustic impedance value and the second acoustic impedance value a presence of a micro-annulus between the casing and the cement.
(FR)
L'invention concerne des procédés et un appareil pour inspecter des éléments d'infrastructure de champ pétrolifère. Les procédés comprennent des procédés d'identification d'un espace annulaire microscopique à l'extérieur d'un tubage dans un puits de forage cimenté. Les procédés peuvent consister à transmettre une impulsion acoustique incidente sur le tubage ; réaliser une mesure d'une première valeur de propriété d'impédance acoustique à partir d'informations d'écho d'impulsion générées en réponse à un écho de l'impulsion acoustique réfléchie par le tubage ; propager une onde guidée circonférentielle dans le tubage ; réaliser une mesure d'une seconde valeur de propriété d'impédance acoustique à partir d'informations d'onde de propagation générées en réponse à l'onde acoustique de propagation ; et déterminer, à partir de la première valeur d'impédance acoustique et de la seconde valeur d'impédance acoustique, une présence d'un espace annulaire microscopique entre le tubage et le ciment.
Also published as
Latest bibliographic data on file with the International Bureau