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:
Mar. 22, 2022
Filed:
May. 09, 2017
Halliburton Energy Services, Inc., Houston, TX (US);
Yusheng Cheng, Spring, TX (US);
Songhua Chen, Katy, TX (US);
Magdalena Sandor, Humble, TX (US);
Wei Shao, Conroe, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A method for estimating a property of an earth formation is provided. At least one porosity dataset is received. The porosity dataset is analysed to determine pore-throat size distribution. A NMR measurements dataset is received from a NMR tool. The dataset is analyzed to determine a distribution of a first relaxation time versus a second relaxation time. Distribution of a ratio of the first relaxation time to the second relaxation time is determined by calculating a ratio between a geometric mean of the first relaxation and the second relaxation time. A threshold for the ratio of the first relaxation time to the second relaxation time is selected. The threshold indicates a value of the ratio corresponding to pore sizes not contributing to property of the formation. The property of the formation is determined using the determined threshold for the ratio of the first relaxation time to the second relaxation time.