US Patent Issued to Halliburton Energy Services on Sept. 30 for "Volumetric compensation for sealing performance under large temperature swing conditions" (Singaporean, American Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,927, issued on Sept. 30, was assigned to Halliburton Energy Services Inc. (Houston).

"Volumetric compensation for sealing performance under large temperature swing conditions" was invented by Xiaoguang Allan Zhong (Singapore), Shobeir Pirayeh Gar (Plano, Texas) and Michael Linley Fripp (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for creating seals that expand during temperature drops. The seals may include a negative CTE material that is either internal or external to the sealing element; shape memory alloys (SMA) which exhibit negative CTE during a phase change; and/or external lattice structures with positive CTE...