US Patent Issued to Weatherford Technology Holdings on May 13 for "Debris exclusive-pressure intensified-pressure balanced setting tool for liner hanger" (Texas Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,706, issued on May 13, was assigned to Weatherford Technology Holdings LLC (Houston).

"Debris exclusive-pressure intensified-pressure balanced setting tool for liner hanger" was invented by Frank D. Kalb (Cypress, Texas), Eric D. Alonzo (Tomball, Texas) and Alexey Petrenko (The Woodlands, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method set a liner hanger in a borehole by actuating a hydraulic setting mechanism on the hanger to engage slips in the borehole. A setting tool runs the hanger into position. A reserve volume of the tool holds a clean fluid separate from the borehole. A piston of the tool has a tool volume for the f...