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:
Nov. 03, 2015
Filed:
Apr. 29, 2011
Pabitra N. Sen, Chapel Hill, NC (US);
Gabriela Leu, Cambridge, MA (US);
Nicholas Drenzek, Quincy, MA (US);
Thomas J. Neville, Broadbeach, AU;
Yi-qiao Song, Newton, MA (US);
Ravinath Kausik Kadayam Viswanathan, Somerville, MA (US);
Pabitra N. Sen, Chapel Hill, NC (US);
Gabriela Leu, Cambridge, MA (US);
Nicholas Drenzek, Quincy, MA (US);
Thomas J. Neville, Broadbeach, AU;
Yi-Qiao Song, Newton, MA (US);
Ravinath Kausik Kadayam Viswanathan, Somerville, MA (US);
Schlumberger Technology Corporation, Cambridge, MA (US);
Abstract
Systems and methods for magic angle spinning nuclear magnetic resonance analysis of samples from unconventional reservoirs are described. Fast and inexpensive methods are described that can provide reliable information on TOC content, type, and maturity (via the relative abundances of different hydrocarbons, for example) without the need for more extensive sample preparation or destruction. If care is taken during sample recovery and storage, NMR can also yield an estimate of gas-in-place, including detailed typing (e.g. methane vs. ethane). The described MAS NMR analysis is used to determine various properties of unconventional reservoirs, including gas and oil shales, which are useful in evaluating their worth and producibility.