Automated system for modeling faulted multi-valued horizons

Details Automated system for modeling faulted multi-valued horizons Automated system for modeling faulted multi-valued horizons

2008-09-09

2008-09-09

Rodriguez, Paul L (Department: 2123)

Data processing: structural design, modeling, simulation, and em

Simulating nonelectrical device or system

Fluid

C702S003000, C702S005000

Reexamination Certificate

active

10480099

ABSTRACT:
In a method for modeling a reservoir having a horizon surface with a reverse fault, a volume of the reservoir is partitioned into fault blocks. A bounding surface of each of the fault blocks includes a portion of the reverse fault. The interior of each of the fault blocks includes only single valued horizon surfaces. Horizon data describing the reservoir is partitioned into patches, each patch corresponding to a fault block. A horizon surface patch model is derived from the data patch in the interior of each fault block. The horizon patch model includes an up-thrown or down-thrown fault trace, which defines the intersection of the surface patch with the bounding reverse fault. Continuity constraints are defined to ensure that horizon surface patch models on the opposite sides of the reverse fault coincide outside of the real fault.

REFERENCES:
patent: 5740342 (1998-04-01), Kocberber
patent: 6014343 (2000-01-01), Graf et al.
Chambers K T et al: “Geologic modeling, upscaling and simulation of faulted reservoirs using faulted stratigraphic grids” Feb. 14-17, 1999.
Hoffman, Karen: “Modeling Faults as Surfaces in 3D Space” Oct. 14, 1999.
A Parrallel Multiblock/Multidomain Approach for Reservoir Simulation, SPE International Society of Petroleum Engineers, SPE 51884, Mary F. Wheeler, et al., Feb. 1999. 16 pages.
Geologic Modeling, Upscaling and Simulation of Faulted Reservoirs Using Faulted Stratigraphic Grids, SPE International Society of Petroleum Engineers, SPE 51889, K.T. Chambers, et al., Feb. 1999, 12 pages.

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