Methods for creating a critical crust reservoir model
AssigneeEnegis, LLC
InventorPeter Geiser
Life of this patent
Estimating the term…
Abstract
Provided herein are systems and methods for generating reservoir models including the SOC nature of the Earth's crust. The methods employ seismic emission tomography (SET) to generate three dimensional models of a formation providing permeability without the need for traditional reservoir modeling techniques and allowing for the identification of naturally-occurring permeability pathways that provide accurate and precise locations for the efficient recovery of hydrocarbons or other fluids.
Claims18
A method for determining a permeability field architecture of at least a portion of a fluid reservoir, the method comprising the steps of:
- establishing a seismic array in the vicinity of a wellbore in fluid communication with said fluid reservoir;
- wherein said seismic array is operable to acquire seismic energy emission data and said seismic array comprises a plurality of seismic energy sensors;
- generating a change in fluid pressure in said fluid reservoir;
- acquiring seismic energy emission data from said seismic array prior to and after said change in fluid pressure;
- processing a selected portion of said seismic energy emission data to generate five dimensional representations of spatial, temporal and energy of a fluid pressure wave through said portion of said fluid reservoir;
- wherein said processing further comprises identifying a semblance band utilizing semblance filtering techniques;
- determining a permeability field architecture of said portion of said fluid reservoir based on said fluid pressure wave;
- and
- identifying at least one high permeability pathway in said fluid reservoir, wherein said high permeability pathway corresponds to at least one medial surface of a High Activity Cloud of said fluid reservoir.
A method for determining a permeability field architecture of at least a portion of a fluid reservoir, the method comprising the steps of:
- establishing a seismic array in the vicinity of a wellbore in fluid communication with said fluid reservoir;
- wherein said seismic array is operable to acquire seismic energy emission data and said seismic array comprises a plurality of seismic energy sensors;
- generating a change in fluid pressure in said fluid reservoir;
- continuously acquiring seismic energy emission data from said seismic array during said change in fluid pressure;
- processing a selected portion of said seismic energy emission data to generate a plurality of voxels corresponding to three dimensional spatial representations of fluid flow through said portion of said fluid reservoir, wherein said processing step includes identifying a semblance band for said data utilizing semblance filtering techniques;
- generating a value of the permeability scalar K from a velocity of a fluid pressure wave through said portion of said fluid reservoir;
- determining a permeability field architecture of said portion of said fluid reservoir based on said fluid flow;
- and
- identifying at least one high permeability pathway in said fluid reservoir, wherein said high permeability pathway corresponds to at least one medial surface of a High Activity Cloud of said fluid reservoir.
A method for identifying a high permeability pathway in a permeability field architecture of at least a portion of a fluid reservoir, comprising:
- establishing a seismic array in the vicinity of a wellbore in fluid communication with said fluid reservoir;
- wherein said seismic array is operable to acquire seismic energy emission data and said seismic array comprises a plurality of seismic energy sensors;
- generating a change in fluid pressure is said fluid reservoir;
- acquiring seismic energy emission data from said seismic array prior to and after said change in fluid pressure;
- processing a selected portion of said seismic energy emission data to generate five dimensional representations of spatial, temporal and energy of fluid flow through said portion of said fluid reservoir, wherein said processing step includes identifying a semblance band for said data utilizing semblance filtering techniques;
- determining a permeability field architecture of said portion of said fluid reservoir based on a fluid pressure wave generated from said fluid flow;
- and
- identifying at least one high permeability pathway in said fluid reservoir, wherein said high permeability pathway corresponds to at least one medial surface of a High Activity Cloud of said fluid reservoir.
Dependencies are inferred from the claim text.