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:
Jan. 19, 2021
Filed:
May. 23, 2019
Saudi Arabian Oil Company, Dhahran, SA;
Quan Chen, Al Khobar, SA;
Sultan Muhammad Al Enezi, Dammam, SA;
Ali Abdallah Al-Yousef, Dhahran, SA;
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
A primary drainage process, a core aging process, a water flooding process, an enhanced oil recovery (EOR) flooding process, and a core cleaning process is conducted on a rock sample. For each of the primary drainage process, core aging process, water flooding process, EOR flooding process, and core cleaning process, an equilibrium sample magnetization distribution and a spatially resolved spin-spin relaxation time spectrum are measured across multiple locations along a longitudinal length of the rock sample. One or more hydrocarbon saturation distributions of the rock sample are determined based on the equilibrium sample magnetization distributions. One or more wettability distributions of the rock sample are determined based on the spatially resolved spin-spin relaxation time spectrums and the one or more hydrocarbon saturation distributions. One or more wettability modification factor distributions of the rock sample are determined based on the spatially resolved spin-spin relaxation time spectrums and the hydrocarbon saturation distribution(s).