US Patent Issued to Landmark Graphics on May 6 for "Mechanical and hydromechanical specific energy-based drilling" (American, Chinese Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,956, issued on May 6, was assigned to Landmark Graphics Corp. (Houston).

"Mechanical and hydromechanical specific energy-based drilling" was invented by Robello Samuel (Cypress, Texas) and Ying Zhao (Tangshan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method comprises drilling a borehole and capturing data during drilling of the borehole, wherein the data comprises at least one value of at least one operational parameter of the drilling. A specific energy formula is modified and used to determine at least one of an efficiency and a quality of drilling of a borehole. Modifying the specific energy formula is based on data captured during ...