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:
May. 14, 2019
Filed:
Mar. 06, 2018
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Assignee:
Saudi Arabian Oil Company, Dhahran, SA;
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01); G01N 24/08 (2006.01); G01R 33/44 (2006.01); G01R 33/46 (2006.01); G01N 15/08 (2006.01);
U.S. Cl.
CPC ...
G01N 24/081 (2013.01); G01N 15/088 (2013.01); G01N 15/0893 (2013.01); G01R 33/445 (2013.01); G01R 33/448 (2013.01); G01R 33/46 (2013.01); G01R 33/4641 (2013.01); Y02A 90/344 (2018.01);
Abstract
The longitudinal relaxation times (T) of water and hydrocarbon inside porous media, such as rock from subsurface formations, behave differently when external magnetic fields vary. A Nuclear Magnetic Relaxation Dispersion (NMRD) profile from Fast Field Cycling Nuclear Magnetic Resonance (FFC-NMR) technique differentiates the type of fluids filling the pores. Different types of pores in a rock sample are filled with different fluids, water and hydrocarbon, and the absolute porosity and the pore size of each type of pores is determined.