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:
Feb. 28, 2023
Filed:
May. 21, 2020
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Assignee:
SAUDI ARABIAN OIL COMPANY, Dhahran, SA;
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/12 (2006.01); E21B 43/16 (2006.01); E21B 49/00 (2006.01); G01N 7/10 (2006.01); G01N 15/08 (2006.01); E21B 49/02 (2006.01);
U.S. Cl.
CPC ...
E21B 49/008 (2013.01); E21B 43/121 (2013.01); E21B 49/006 (2013.01); G01N 7/10 (2013.01); G01N 15/0806 (2013.01); G01N 15/0826 (2013.01); E21B 49/02 (2013.01);
Abstract
Methods and systems for increasing normalized production rate of an oil and gas reservoir by optimizing a pressure drawdown of a subsurface formation are disclosed. The methods include determining permeability of the subsurface formation as a function of effective stresses, determining a stress sensitivity factor for the core sample, upscaling the sensitive stress factor, determining the optimum pressure drawdown for the subsurface formation, and controlling the pressure drawdown in a field operation such that it does not exceed the optimum pressure drawdown for the subsurface formation.