US Patent Issued to SAUDI ARABIAN OIL on March 3 for "Methods for decreasing calcium sulfate precipitation in produced water" (Saudi Arabia Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,433, issued on March 3, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Methods for decreasing calcium sulfate precipitation in produced water" was invented by Tao Chen (Dhahran, Saudi Arabia) and Qiwei Wang (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Precipitation or scaling may occur when combining produced water from multiple sources, such as when one produced water contains dissolved calcium ions and another produced water contains dissolved sulfate anions. The tendency toward precipitation or scaling may be decreased by treating the produced water containing dissolved sulfate anions. Such methods ma...