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:
Apr. 09, 2024
Filed:
Dec. 14, 2022
Saudi Arabian Oil Company, Dhahran, SA;
Kasab International Energy Services Co. Ltd., Al Khobar, SA;
Mohammed Alsheikh, Dhahran, SA;
Mohammed Aljubran, Dhahran, SA;
Abdulwahab Aljohar, Dhahran, SA;
Ossama Ramzi Sehsah, Dhahran, SA;
Meshari Alshalan, Al Khobar, SA;
Chinthaka Pasan Gooneratne, Dhahran, SA;
Abdulkareem Saqqa, Al Khobar, SA;
Amjad Alshaarawi, Dhahran, SA;
SAUDI ARABIAN OIL COMPANY, Dhahran, SA;
Abstract
A rotational continuous circulation system and methods includes a circulation sub having an internal bore extending along a central axis. The circulation sub has an uphole body having a reduced outer diameter along a downhole length of the uphole body. A central valve selectively opens and closes the uphole internal bore. At least one check valve is located within a sidewall of the uphole body to selectively allow fluid to flow into the uphole internal bore through the at least one check valve. A downhole body has an uphole portion circumscribing a downhole portion of the uphole body. A sleeve assembly circumscribes the reduced outer diameter of the uphole body. The uphole body and the downhole body are configured to rotate about the central axis independently from the sleeve assembly. A side-entry port of the sleeve assembly provides a fluid flow path from an exterior of the sleeve assembly to the at least one check valve.