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:
May. 14, 2019
Filed:
Oct. 12, 2017
Saudi Arabian Oil Company, Dhahran, SA;
King Fahd University of Petroleum & Minerals, Dhahran, SA;
Muhammad Atiqullah, Dhahran, SA;
Abdel Salam Al-Sarkhi, Dhahran, SA;
Faisal Mohammed Al-Thenayan, Dhahran, SA;
Abdullah Raddad Al-Malki, Dhahran, SA;
Wei Xu, Dhahran, SA;
Anwar Hossaen, Dhahran, SA;
Saudi Arabian Oil Company, Dhahran, SA;
King Fahd University of Petroleum & Minerals, Dhahran, SA;
Abstract
A method of reducing drag in a conduit. The method includes producing ultra high molecular weight (UHMW) C-Cα-olefin drag reducing agent (DRA) and introducing the UHMW C-Cα-olefin polymer DRA into the conduit to reduce drag in the conduit. The catalyst consists essentially of at least one tertiary monophenyl amine selected from the group consisting of N,N-diethylaniline, N-ethyl-N-methylparatolylamine, N,N-dipropylaniline, N,N-diethylmesitylamine, and combinations thereof; at least one titanium halide having a formula TiX, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlRYwhere R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support.