US Patent Issued to GB CONNECTIONS on Dec. 9 for "Coupled connection for tight clearance casing strings in oil and gas wells" (Texas Inventor)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,761, issued on Dec. 9, was assigned to GB CONNECTIONS LLC (Houston).

"Coupled connection for tight clearance casing strings in oil and gas wells" was invented by Eugene J. Mannella (Richmond, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A casing string is used within a predetermined annular clearance inside a surrounding casing. Tubulars have turn-down recessed to a smaller diameter than the tubular's outer diameter. Pin ends of the tubulars have pin thread and taper inward to an even smaller diameter at the pin noses of the pin ends. Couplings have an outer diameter to fit with the annular clearance requirement. The through-bore of the coupl...