US Patent Issued to Halliburton Energy Services on Sept. 23 for "Wellbore tractor with independent drives" (Singaporean, American Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,817, issued on Sept. 23, was assigned to Halliburton Energy Services Inc. (Houston).

"Wellbore tractor with independent drives" was invented by Guosheng Jin (Singapore), Nikhil Satyawan Dalvi (Singapore), Winston Alfred Rodrigues (Singapore), Boon Buan Lim (Singapore) and Matthew L. Lee (Tomball, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wellbore tractor is provided. The wellbore tractor includes a single hydraulic line and at least one valve disposed along the single hydraulic line. At least two pairs of drives hydraulically coupled with the single hydraulic line such that the single hydraulic line can control the drives to open and/o...