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.

Date of Patent:
Jul. 01, 2025

Filed:

Nov. 16, 2022
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Syed Muhammad Bin Syed Taha, Dhahran, SA;

Amr Mohamed Zahran, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 47/12 (2006.01); E21B 43/12 (2006.01);
U.S. Cl.
CPC ...
F04B 47/12 (2013.01); E21B 43/121 (2013.01);
Abstract

A wellbore lift system with spring-assisted plunger includes an elongate body, multiple propellers and a spring-loaded flow control assembly. The body can traverse through a wellbore. The wellbore can produce the hydrocarbons to the surface. The body defines an interior volume within which the multiple propellers are disposed. The propellers can spin radially in response to the well tool assembly traveling downhole through the wellbore. The spring-loaded flow control assembly is coupled to the propellers. The flow control assembly can, in response to the well tool assembly traveling downhole through the wellbore, permit fluid flow uphole of the well tool assembly, and can store potential energy in the spring. In response to the well tool assembly traveling uphole through the wellbore, the spring-loaded flow control assembly can prevent fluid flow downhole of the well tool assembly and discharge the potential energy in the spring.


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