The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2010
Filed:
Dec. 04, 2006
Ŕaul Valdez, Bellaire, TX (US);
Peter Harold Doe, Richmond, TX (US);
Tak Siang Kho, Houston, TX (US);
Ŕaul Valdez, Bellaire, TX (US);
Peter Harold Doe, Richmond, TX (US);
Tak Siang Kho, Houston, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A method for estimating minimum miscibility enrichment (MME) for an injectant used in gas flooding of a reservoir at a given operating pressure comprising performing a plurality of slim tube simulations for the reservoir, determining minimum miscibility pressure (MMP) for a plurality of injected gases, creating a plot of recovery factor (RF) vs. 1−(MMP−P)/MMP wherein P is the operating pressure of the reservoir having at least one of the plurality of injected gases, wherein 1−(MMP−P)/MMP is a dimensionless pressure, wherein the plot has a y-intercept and slope, obtaining a recovery factor equation RF=i+s(1−(MMP−P)/MMP) wherein i is the y-intercept and s is the slope, determining a value for i, determining a value for s and calculating the recovery factor.