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:
Feb. 18, 2014
Filed:
Jun. 08, 2010
Rajesh A. Chanpura, Sugar Land, TX (US);
Yi-qiao Song, Newton Center, MA (US);
Mehmet Parlar, Sugar Land, TX (US);
Lukasz Zielinski, Somerville, MA (US);
Rajesh A. Chanpura, Sugar Land, TX (US);
Yi-Qiao Song, Newton Center, MA (US);
Mehmet Parlar, Sugar Land, TX (US);
Lukasz Zielinski, Somerville, MA (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method for determining particle size distribution of a subsurface rock formation using measurements of at least one nuclear magnetic resonance property made from within a wellbore penetrating the rock formation includes determining a distribution of nuclear magnetic relaxation times from the measurements of the at least one nuclear magnetic resonance property. A surface relaxivity of the formation is determined from measurements of a formation parameter. The relaxation time distribution and surface relaxivity are used to determine the particle size distribution.