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:
May. 14, 2024
Filed:
Nov. 19, 2021
Saudi Arabian Oil Company, Dhahran, SA;
Mohammed M. Otaibi, Dammam, SA;
SAUDI ARABIAN OIL COMPANY, Dhahran, SA;
Abstract
A system for well control during tripping phases in drilling operations in a wellbore, the system comprising: a drill string extending from an entry of the wellbore to a drill bit at a distal end of the drill string within the wellbore; a near bit sub mounted along the drill string adjacent to the drill bit; a first smart multi-directional two-way check valve mounted along the drill string adjacent to the near bit sub; and a controller configured to operate the valve. The controller controls the valve to apply suction or discharge flow to the near bit sub to counter inertial effects of drilling mud viscosity within the wellbore.