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1. (WO2015048760) INTERFACE POINT METHOD MODELING OF THE STEAM-ASSISTED GRAVITY DRAINAGE PRODUCTION OF OIL

Pub. No.:    WO/2015/048760    International Application No.:    PCT/US2014/058352
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Wed Oct 01 01:59:59 CEST 2014
IPC: E21B 44/00
G06F 19/00
G06G 7/48
Applicants: BP CORPORATION NORTH AMERICA INC.
LOS ALAMOS NATIONAL LABORATORY
Inventors: VANDERHEYDEN, William, Brian
ZHANG, Duan, Z.
Title: INTERFACE POINT METHOD MODELING OF THE STEAM-ASSISTED GRAVITY DRAINAGE PRODUCTION OF OIL
Abstract:
A computer system and method of simulating the behavior of an oil and gas reservoir including movement of the steam-bitumen interface during oil production using the Steam Assisted Gravity Drainage (SAGD) technique. A system of equations including state equations involving momentum and heat transport for each phase, mass conservation equations, and heat balance equations, in combination with a continuity constraint, is defined and discretized for the modeled volume. A material point model technique for numerically solving the system of discretized equations is applied, where interface marker particles that move through the Eulerian grid represent the location of points along the steam-bitumen interface.