US Patent Issued to Schlumberger Technology on June 16 for "Predicting torque and drag buckling behavior of a drill string and casing" (Chinese, American Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,657,356, issued on June 16, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).

"Predicting torque and drag buckling behavior of a drill string and casing" was invented by Paul Bolchover (Houston), Ji Tang Liu (Beijing) and Rongbing Chen (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for predicting buckling behavior in a torque and drag analysis of a tubular string in a wellbore includes performing a first finite element analysis (FEA) on the tubular string. The method also includes determining one or more first properties of the tubular string based upon the first FEA. The method also includes identifying a possible buc...