ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,536, issued on July 21, was assigned to Halliburton Energy Services Inc. (Houston).

"Determining rock fragment size and size distribution" was invented by Yonggui Guo (Houston), Claudia Lucia Bonin De Oliveira (Houston), Dale E. Jamison (Humble, Texas), Mateusz Michal Dyngosz (Houston) and Mahdi Parak (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques for determining a rock fragment size and size distribution include determining rock fragment parameters associated with a well systems. The techniques further include determining a fractal dimension based, at least in part, on the rock fragment parameters. The techniques further include...