US Patent Issued to Baker Hughes Oilfield Operations on Sept. 9 for "Fluid density valve, method, and system" (Texas Inventors)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,680, issued on Sept. 9, was assigned to Baker Hughes Oilfield Operations LLC (Houston).

"Fluid density valve, method, and system" was invented by Bin Zhu (Houston), Guijun Deng (The Woodlands, Texas), Daniel Ewing (Katy, Texas), Zhihui Zhang (Katy, Texas), Ronnie Russell (Cypress, Texas) and John Wakefield (Cypress, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fluid density valve housing includes a pilot fluid inlet and outlet and a primary fluid inlet and outlet. A shuttle is disposed within the housing. The shuttle comprises a portion having a reference density and a portion defining a cavity fluidically connected to the pilot fluid inl...