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1. WO2020198284 - AUTOMATIC CALIBRATION OF FORWARD DEPOSITIONAL MODELS

Publication Number WO/2020/198284
Publication Date 01.10.2020
International Application No. PCT/US2020/024577
International Filing Date 25.03.2020
IPC
G01V 99/00 2009.01
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
99Subject matter not provided for in other groups of this subclass
G06F 30/20 2020.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
30Computer-aided design
20Design optimisation, verification or simulation
CPC
E21B 41/0092
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
41Equipment or details not covered by groups E21B15/00 - E21B40/00
0092Methods relating to program engineering, design or optimisation
E21B 44/00
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
44Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems
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
G01V 2210/661
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
2210Details of seismic processing or analysis
60Analysis
66Subsurface modeling
661Model from sedimentation process modeling, e.g. from first principles
G01V 2210/6652
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
2210Details of seismic processing or analysis
60Analysis
66Subsurface modeling
665using geostatistical modeling
6652Kriging
G01V 99/005
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
99Subject matter not provided for in other groups of this subclass
005Geomodels or geomodelling, not related to particular measurements
Applicants
  • SAUDI ARABIAN OIL COMPANY [SA]/[SA]
  • ARAMCO SERVICES COMPANY [US]/[US] (AG)
Inventors
  • LI, Yupeng
  • MEZGHANI, Mokhles Mustapha
Agents
  • BRUCE, Carl E.
  • IYER, Sushil
  • COX, Michael E.
Priority Data
16/365,21726.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) AUTOMATIC CALIBRATION OF FORWARD DEPOSITIONAL MODELS
(FR) ÉTALONNAGE AUTOMATIQUE DE MODÈLES DE DÉPÔT VERS L'AVANT
Abstract
(EN)
The subject matter of this specification can be embodied in, among other things, a method for geological modeling includes receiving a forward depositional model, determining a Latin Hypercube Sampling (LHS) stratigraphic model based on the projected forward depositional model, performing forward depositional modeling, transform the forward depositional model from time domain to stratigraphic-depth domain, determining one or more pseudo-wells based on the transformed model, determining a mismatch value based on the transformed forward depositional model and a collection of simulated physical value, and determining a kriging surrogate model based on the LHS stratigraphic model and the mismatch value.
(FR)
La présente invention concerne, entre autres, un procédé de modélisation géologique qui comprend la réception d'un modèle de dépôt vers l'avant, la détermination d'un modèle stratigraphique d'échantillonnage par hypercube latin (LHS) sur la base du modèle de dépôt vers l'avant projeté, la réalisation d'une modélisation de dépôt vers l'avant, la transformation du modèle de dépôt vers l'avant à partir du domaine temporel en domaine stratigraphique-profondeur, la détermination d'un ou de plusieurs pseudo-puits sur la base du modèle transformé, la détermination d'une valeur de désadaptation sur la base du modèle de dépôt vers l'avant transformé et d'une collecte de valeur physique simulée, et la détermination d'un modèle de substitution de kriging sur la base du modèle stratigraphique LHS et de la valeur de désadaptation.
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