Systems and methods for multi-scale subsurface modeling
AssigneeChevron U.S.A. Inc.
InventorsLewis Li, Lianshuang Qi, Aigul Tyshkanbayeva
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Abstract
Modeling of a subsurface region is performed at different scales. Coarse modeling of the subsurface region is performed using coarse conditioning data to generate a coarse-scale representation of the subsurface region. Fine modeling of one or more parts of the subsurface region is performed using the corresponding part(s) of the coarse-scale representation and fine conditioning data to generate fine-scale representation(s) of the part(s) of the subsurface region. Spatial continuity and geological continuity are preserved between the different-scale representations.
Claims20
A system for multi-scale subsurface modeling, the system comprising:
- one or more physical processors configured by machine-readable instructions to:
- obtain conditioning information, the conditioning information defining multiple sets of conditioning characteristics for a subsurface region, the multiple sets of conditioning characteristics including conditioning characteristics of different resolutions, wherein the multiple sets of conditioning characteristics include a first set of conditioning characteristics with a first resolution and a second set of conditioning characteristics with a second resolution higher than the first resolution;
- generate a first-scale subsurface representation of the subsurface region based on the first set of conditioning characteristics with the first resolution, the first-scale subsurface representation of the subsurface region including a cell that represents a portion within the subsurface region;
- generate a second-scale subsurface representation of a part of the subsurface region based on the first-scale subsurface representation of the subsurface region and the second set of conditioning characteristics with the second resolution, the second-scale subsurface representation of the part of the subsurface region including multiple sub-cells that represent the portion within the subsurface region;
- and
- perform modeling of the subsurface region based on the first-scale subsurface representation of the subsurface region and the second-scale subsurface representation of the part of the subsurface region.
A method for multi-scale subsurface modeling, the method comprising:
- obtaining conditioning information, the conditioning information defining multiple sets of conditioning characteristics for a subsurface region, the multiple sets of conditioning characteristics including conditioning characteristics of different resolutions, wherein the multiple sets of conditioning characteristics include a first set of conditioning characteristics with a first resolution and a second set of conditioning characteristics with a second resolution higher than the first resolution;
- generating a first-scale subsurface representation of the subsurface region based on the first set of conditioning characteristics with the first resolution, the first-scale subsurface representation of the subsurface region including a cell that represents a portion within the subsurface region;
- generating a second-scale subsurface representation of a part of the subsurface region based on the first-scale subsurface representation of the subsurface region and the second set of conditioning characteristics with the second resolution, the second-scale subsurface representation of the part of the subsurface region including multiple sub-cells that represent the portion within the subsurface region;
- and
- performing modeling of the subsurface region based on the first-scale subsurface representation of the subsurface region and the second-scale subsurface representation of the part of the subsurface region.
Dependencies are inferred from the claim text.