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. 09, 2003
Filed:
Dec. 11, 2002
Michael P. Smith, Tulsa, OK (US);
Robert J. Pottorf, Houston, TX (US);
Gary G. Gray, Bellaire, TX (US);
Maxim O. Vityk, The Woodlands, TX (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
A method for predicting hydrocarbon-bearing zones and estimating rock properties by analyzing fluids trapped in the pore spaces or adsorbed on the surfaces of rock samples. The trapped gases are removed under vacuum and analyzed by a mass spectrometer. Data peaks corresponding to petroleum constituent molecules provide an indication of presence and abundance of hydrocarbons. A decrease of the count rate over time is used to estimate permeability and other rock properties. Concentration ratios for selected constituents indicate oil quality and depth of the oil-water contact.