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:
Sep. 15, 2026
Filed:
Apr. 07, 2025
Weatherford International, Llc, Houston, TX (US);
Daniel E. Sequera, Houston, TX (US);
Joshua V. Symms, Cypress, TX (US);
Brandon C. Goodman, Houston, TX (US);
Weatherford Technology Holdings, LLC, Houston, TX (US);
Abstract
A float assembly facilitates autofill operations when running a tubing string into a wellbore. The assembly includes a poppet valve and an interlock. A primary biasing element, located on a support within the assembly, moves the poppet from an open position to a closed position against a seat. The interlock, situated relative to the poppet and support, includes a surface area exposed to fluid flow and includes a secondary biasing element. When fluid flow in the downbore direction exceeds a specific threshold, the interlock shifts from a locked state to an unlocked state. In the locked state, the interlock holds the poppet in the open position, allowing bidirectional fluid flow to support autofill operations. The secondary biasing element, located between the support and the assembly, maintains the locked state. When unlocked, the interlock releases the poppet, and the primary biasing element drives the poppet closed.