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. 01, 2022
Filed:
Jun. 02, 2020
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventor:
Amr Mohamed Zahran, Dhahran, SA;
Assignee:
Saudi Arabian Oil Company, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 47/12 (2006.01); E21B 43/12 (2006.01); E21B 33/068 (2006.01); E21B 34/02 (2006.01); E21B 34/06 (2006.01);
U.S. Cl.
CPC ...
F04B 47/12 (2013.01); E21B 33/068 (2013.01); E21B 34/02 (2013.01); E21B 34/06 (2013.01); E21B 43/121 (2013.01);
Abstract
An unloading plunger having a chamber for compressed gas and a method for unloading liquid from a wellbore via ascending of the unloading plunger including ascending via formation pressure the unloading plunger from the bottom portion of the wellbore to a rest position at a wellhead and releasing compressed gas from the chamber into the wellbore during the ascending to decrease hydrostatic pressure of liquid in the wellbore above the unloading plunger.