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. 23, 2021
Filed:
Oct. 03, 2018
Weatherford Technology Holdings, Llc, Houston, TX (US);
Joe Noske, Houston, TX (US);
Weatherford Technology Holdings, LLC, Houston, TX (US);
Abstract
A method of drilling a wellbore includes deploying a drill string into the wellbore through a casing string disposed in the wellbore casing string having an isolation valve. The method also includes drilling the wellbore into a formation by injecting drilling fluid through the drill string and rotating a drill bit of the drill sting and retrieving the drill string from the wellbore until the drill bit is above one or more valve members of the isolation valve. The method further includes closing the valve members, thereby bidirectionally isolating the formation from an upper portion of the wellbore.