The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2024
Filed:
Dec. 30, 2021
Method to treat nano-filtration membrane retentate for reuse in fracturing and drilling applications
Saudi Arabian Oil Company, Dhahran, SA;
Fahd Ibrahim AlGhunaimi, Dhahran, SA;
Hind Saleh Aldossary, Dhahran, SA;
Mona Saad Dossary, Dhahran, SA;
Tao Chen, Dhahran, SA;
Mohammed A. Bataweel, Dhahran, SA;
Abadi A. Mutairi, Dhahran, SA;
Norah W. Aljuryyed, Dhahran, SA;
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
A process of treating nano-filtration membrane retentate comprises introducing seawater comprising a sulfate ion concentration of greater than or equal to 3000 mg/l to the NF membrane to produce a retentate stream and a permeate stream, wherein the retentate stream has a sulfate ion concentration greater than or equal to 10,000 mg/l, and mixing barium additives comprising barium chloride dehydrate (BaClHO), barium chloride (BaCl), or both with the retentate stream to precipitate sulfate from the retentate stream to form barite (BaSO) and reduce the sulfate ion concentration, wherein the barium additives are added into the retentate stream at a barium ion concentration of greater than 10,000 mg/l.