US Patent Issued to EXPRO NORTH SEA on July 14 for "Downhole apparatus and method for operations involving delivery and hardening of settable materials" (British Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,417, issued on July 14, was assigned to EXPRO NORTH SEA Ltd. (Berkshire, Great Britain).

"Downhole apparatus and method for operations involving delivery and hardening of settable materials" was invented by Stephen Edmund Bruce (Blairgowrie, Great Britain), David Michael Shand (Banchory, Great Britain) and Tristam Paul Horn (Aberdeen, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of conditioning a well bore featuring an annulus (50) between a bore-lining tubing (20) and a surrounding bore wall (110) comprises pumping conditioning fluid through an inner tubing (10) located within the bore-lining tubing (20) and into a portion ...