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Fault removal in geological models

  • US 10,036,829 B2
  • Filed: 08/23/2013
  • Issued: 07/31/2018
  • Est. Priority Date: 09/28/2012
  • Status: Active Grant
First Claim
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1. A computer-implemented method for fault removal of a plurality faults in a subsurface geological model to populate the model with desired information, comprising:

  • (a) ordering the plurality of faults in reverse chronological order, and selecting a fault of the plurality of faults based on the reverse chronological order;

    (b) removing the selected fault by iteratively solving, using a computer, an optimal control problem wherein Laplace'"'"'s equation is solved for an optimal set of rigid body transformations and boundary displacement vectors on the fault'"'"'s surface;

    (c) repeating (b) as necessary to remove any remaining faults in the plurality of faults, one at a time, in reverse chronological order, resulting in a transformation of the geological model from faulted space to continuous space;

    (d) populating said geological model with faults removed with selected grids or surfaces or physical property values;

    (e) computing a mapping of the populated geological model back to the faulted space;

    (f) storing the mapping and the populated geological model in the memory of the computer; and

    (g) causing a well to be drilled based on the mapping for the production of hydrocarbons.

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