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:
Oct. 25, 2005
Filed:
Dec. 29, 2003
Michael M. Herron, Ridgefield, CT (US);
Michael M. Herron, Ridgefield, CT (US);
Schlumberger Technology Corporation, Ridgefield, CT (US);
Abstract
A modification to the Coates-Timur relationship to produce a more coherent relationship applicable to carbonate formations is disclosed. In this method, permeability may be determined using porosity and the ratio of bound fluid volume to (1—bound fluid volume). This method also allows for improved estimation of irreducible water saturation of a carbonate formation using the ratio of kand (eφ+k). Likewise, the bound fluid volume of a carbonate formation may be determined using the ratio of φkand (eφ+k). In these relationships, e, x, and f are constants according to the following relationships e=x, f=bc+1, x is between 1 and 100 mD (preferably 10 mD).