ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,357, issued on Nov. 11, was assigned to Halliburton Energy Services Inc. (Houston).

"Formation testing tool and methods for performing a hybrid power formation pressure test" was invented by Jason Charles Parker (Houston), Anthony Herman VanZuilekom (Houston) and Thiago Santos Magalhaes (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for performing a formation pressure test include inserting a bottom hole assembly ("BHA") into a wellbore. The BHA includes a drill bit and a formation testing tool with a battery and a fluid powered generator. An initial formation pressure test is performed while powering the formation testi...