US Patent Issued to Halliburton Energy Services on July 22 for "Controlled opening of a valve in an apparatus for preventing downhole surges" (Texas Inventor)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,140, issued on July 22, was assigned to Halliburton Energy Services Inc. (Houston).

"Controlled opening of a valve in an apparatus for preventing downhole surges" was invented by Christiaan Dennis Krauss (Spring, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An exemplary apparatus for use in a tubular string may include piston, a metering device, and a body having a longitudinal bore extending therethrough. When a valve of the apparatus is in an open position, the valve may seal the bore, and when the valve is in a closed position, the valve may allow fluid to flow through the bore. A fluid chamber may be formed between the body and the pisto...