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1. WO2020097090 - APPARATUS AND METHODS OF EVALUATING ROCK PROPERTIES WHILE DRILLING USING ACOUSTIC SENSORS INSTALLED IN THE DRILLING FLUID CIRCULATION SYSTEM OF A DRILLING RIG

Publication Number WO/2020/097090
Publication Date 14.05.2020
International Application No. PCT/US2019/059884
International Filing Date 05.11.2019
IPC
G01V 1/46 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
40specially adapted for well-logging
44using generators and receivers in the same well
46Data acquisition
G01V 1/48 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
40specially adapted for well-logging
44using generators and receivers in the same well
48Processing data
E21B 43/00 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
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
G01V 1/50 2006.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
1Seismology; Seismic or acoustic prospecting or detecting
40specially adapted for well-logging
44using generators and receivers in the same well
48Processing data
50Analysing data
CPC
E21B 47/01
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
47Survey of boreholes or wells
01Devices for supporting measuring instruments on a drill pipe, rod or wireline
E21B 49/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
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
E21B 49/003
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
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
003by analysing drilling variables or conditions
G01V 1/46
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
1Seismology; Seismic or acoustic prospecting or detecting
40specially adapted for well-logging
44using generators and receivers in the same well
46Data acquisition
G01V 1/48
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
1Seismology; Seismic or acoustic prospecting or detecting
40specially adapted for well-logging
44using generators and receivers in the same well
48Processing data
G01V 1/50
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
1Seismology; Seismic or acoustic prospecting or detecting
40specially adapted for well-logging
44using generators and receivers in the same well
48Processing data
50Analysing data
Applicants
  • SAUDI ARABIAN OIL COMPANY [SA]/[SA]
  • ARAMCO SERVICES COMPANY [US]/[US] (AG)
Inventors
  • YANG, Yunlai
Agents
  • RHEBERGEN, Constance Gall
Priority Data
16/183,03707.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHODS OF EVALUATING ROCK PROPERTIES WHILE DRILLING USING ACOUSTIC SENSORS INSTALLED IN THE DRILLING FLUID CIRCULATION SYSTEM OF A DRILLING RIG
(FR) APPAREIL ET PROCÉDÉS D'ÉVALUATION DE PROPRIÉTÉS DE ROCHE PENDANT LE FORAGE À L'AIDE DE CAPTEURS ACOUSTIQUES INSTALLÉS DANS LE SYSTÈME DE CIRCULATION DE FLUIDE DE FORAGE D'UN APPAREIL DE FORAGE
Abstract
(EN)
Apparatus and methods of identifying rock properties in real-time during drilling, are provided. An apparatus includes an acoustic sensor installed in a drilling fluid circulation system of a drilling rig, the acoustic sensor coupled to one of the following: (i) a bell nipple, (ii) a gooseneck, or (iii) a standpipe. Raw acoustic sensor data generated real-time as a result of rotational contact of the drill bit with rock during drilling is received, and a plurality of acoustic characteristics are derived from the raw acoustic sensor data. The lithology type of rock undergoing drilling may be determined from the acoustic characteristics. Petrophysical properties of the rock undergoing drilling may be determined using a petrophysical properties evaluation algorithm employable to predict the petrophysical properties of rock undergoing drilling from the raw acoustic sensor data.
(FR)
La présente invention concerne un appareil et des procédés permettant d'identifier des propriétés d'une roche en temps réel pendant le forage. Un appareil comprend un capteur acoustique installé dans un système de circulation de fluide de forage d'un appareil de forage, le capteur acoustique étant accouplé à l'un des éléments suivants : (i) un tube fontaine, (ii) un col de cygne, ou (iii) un tuyau de refoulement. Des données brutes de capteur acoustique générées en temps réel suite au contact rotatif du trépan avec de la roche pendant le forage sont reçues, et une pluralité de caractéristiques acoustiques sont dérivées des données brutes de capteur acoustique. Le type lithologique de roche soumis à un forage peut être déterminé à partir des caractéristiques acoustiques. Des propriétés pétrophysiques de la roche subissant un forage peuvent être déterminées à l'aide d'un algorithme d'évaluation de propriétés pétrophysiques utilisable pour prédire les propriétés pétrophysiques de la roche subissant un forage à partir des données brutes de capteur acoustique.
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