Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate
2007-02-13
2007-02-13
Bui, Bryan (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
C703S010000
Reexamination Certificate
active
10832129
ABSTRACT:
A reservoir simulator first estimates rock displacement parameters (u, v, and w) representing rock movement in the x, y, and z directions. When the rock displacement parameters (u, v, w) are determined, “εx,y,z” (the ‘x,y,z elongation strains’) and “γxy,yz,zx” (the ‘shear strains’) are determined since “εx,y,z” and “γxy,yz,zx” are function of “u”, “v”, and “w” When “εx,y,z” and “γxy,yz,zx” are determined, “σx,y,z” (the ‘elastic normal rock stress in x,y,z directions’) and “τxy,yz,xz” (the ‘elastic shear stress’) are determined since “σx,y,z” and “τxy,yz,xz” are a function of “εx,y,z” and “γxy,yz,zx”. When “σx,y,z” and “τxy,yz,xz” are determined, the rock momentum balance differential equations can be solved, since these equations are a function of “σx,y,z” and “τxy,yz,xz”. When any residuals are substantially equal to zero, the estimated rock displacement parameters (u, v, and w) represent ‘accurate rock displacement parameters’ for the reservoir. When the rock momentum balance differential equations are solved, the rock displacement parameters (u, v, w), at an advanced time, are known. These rock displacement parameters (u, v, w) represent and characterize ‘subsidence’ in a seabed floor because subsidence results from rock movement; and rock movement results from withdrawal of oil or other hydrocarbon deposits or other fluids from an Earth formation. This ‘abstract of the disclosure’ is given for the sole purpose of allowing a patent searcher to easily determine the content of the disclosure in this application.
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Bouchard John N.
Bui Bryan
Le Toan M.
Maseles Danita J. M.
Schlumberger Technology Corp.
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