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:
Dec. 29, 2015
Filed:
Jan. 09, 2012
Fred K. Gruber, Boston, MA (US);
Lalitha Venkataramanan, Lexington, MA (US);
Tarek M. Habashy, Burlington, MA (US);
Philip M. Singer, Cambridge, MA (US);
Denise E. Freed, Newton Highlands, MA (US);
Fred K. Gruber, Boston, MA (US);
Lalitha Venkataramanan, Lexington, MA (US);
Tarek M. Habashy, Burlington, MA (US);
Philip M. Singer, Cambridge, MA (US);
Denise E. Freed, Newton Highlands, MA (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A nuclear magnetic resonance (NMR) related distribution is estimated that is consistent with NMR measurements and uses linear functionals directly estimated from the measurement indications by integral transforms as constraints in a cost function. The cost function includes indications of the measurement data, Laplace transform elements and the constraints, and a distribution estimation is made by minimizing the cost function. The distribution estimation may be used to find parameters of the sample. Where the sample is a rock or a formation, the parameters may include parameters such as rock permeability and/or hydrocarbon viscosity, bound and free fluid volumes, among others. The parameters may be used in models, equations, or otherwise to act on the sample, such as in recovering hydrocarbons from the formation.