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:
Oct. 27, 2020
Filed:
Jul. 03, 2018
Cenovus Energy Inc., Calgary, CA;
John E. Arthur, Calgary, CA;
Jarrett Dragani, Calgary, CA;
Nadim Kassam, Calgary, CA;
Michael Bumstead, Calgary, CA;
Cenovus Energy Inc., Calgary, CA;
Abstract
A process for producing hydrocarbons from a subterranean hydrocarbon-bearing reservoir includes injecting a gas, at a pressure below a minimum miscibility pressure, into the reservoir through an injection well extending into the reservoir to form a gas zone in the reservoir. The gas injection pressure is suitable to provide a differential pressure between a bottom-hole production well pressure at a horizontal multi-lateral production well extending into the reservoir, and the gas injection pressure to facilitate sweeping the hydrocarbons toward the production well prior to gas breakthrough at the production well. The method also includes producing a portion of the hydrocarbons to surface through the production well, monitoring the production well for the gas breakthrough, and after the gas breakthrough is detected producing a further portion of the hydrocarbons by a gas gravity drainage process in which hydrocarbons are drained toward the production well, and controlling continued production of the hydrocarbons through the production well.