US Patent Issued to Saudi Arabian Oil on April 22 for "C-36 dimer diamine hydrochloride salt as primary viscosifier for invert-emulsion drilling fluids" (Saudi Arabia Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,255, issued on April 22, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"C-36 dimer diamine hydrochloride salt as primary viscosifier for invert-emulsion drilling fluids" was invented by Vikrant Wagle (Dhahran, Saudi Arabia), Abdullah Saleh Hussain Al-Yami (Dhahran, Saudi Arabia), Omprakash Pal (Dhahran, Saudi Arabia), Ali Mohammed Hussain Al Safran (Dhahran, Saudi Arabia) and Khawlah Alanqari (Al Khobar, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods for making and using an invert-emulsion drilling fluid, and the invert-emulsion drilling fluid are provided. An exemplary invert-emulsion drilling fluid includes a C...