An efficient fully implicit simulator

Journal Article · Wed Jun 01 04:00:00 EDT 1983 · SPEJ, Soc. Pet. Eng. J.; (United States)

DOI:https://doi.org/10.2118/11817-PA· OSTI ID:5522694

Ponting, D K; Banks, D; Foster, B A; Naccache, P F; Nicholas, M O; Pollard, R K; Rae, J; Walsh, S K

This paper describes Program for Oil Reservoir Simulation (PORES), an efficient, general-purpose, black-oil simulator now in production use for modeling North Sea fields. The fully implicit finite-difference equations are solved for each time step with a Newton-Raphson procedure. The resulting large sets of linear equations are usually solved simultaneously by a new and powerful iterative method that uses a preconditioned conjugate gradient algorithm with an enforced column-sum condition to accelerate convergence. A sequential solution option is available, and direct matrix inversion methods also are provided. Gas condensate problems are handled by a variable switching technique. Four examples are presented to illustrate the power and efficiency of the program.

• Research Organization: Atomic Energy Research Establishment
• OSTI ID: 5522694
• Journal Information: SPEJ, Soc. Pet. Eng. J.; (United States), Journal Name: SPEJ, Soc. Pet. Eng. J.; (United States) Vol. 23:3; ISSN SSPJD
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ANALOG SYSTEMS
ATLANTIC OCEAN
FINITE DIFFERENCE METHOD
FUNCTIONAL MODELS
GEOLOGIC DEPOSITS
ITERATIVE METHODS
MATHEMATICAL MODELS
MINERAL RESOURCES
NEWTON METHOD
NORTH SEA
NUMERICAL SOLUTION
OIL FIELDS
OIL WELLS
PETROLEUM DEPOSITS
RESERVOIR ROCK
RESOURCES
SEAS
SIMULATION
SIMULATORS
SURFACE WATERS
SYSTEMS ANALYSIS
WELLS