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. 28, 2013
Filed:
Aug. 11, 2011
Stuart N. Milligan, Ponca City, OK (US);
Ray L. Johnston, Ponca City, OK (US);
Timothy L. Burden, Ponca City, OK (US);
Wayne R. Dreher, College Station, TX (US);
Kenneth W. Smith, Tonkawa, OK (US);
William F. Harris, Palm Harbor, FL (US);
Stuart N. Milligan, Ponca City, OK (US);
Ray L. Johnston, Ponca City, OK (US);
Timothy L. Burden, Ponca City, OK (US);
Wayne R. Dreher, College Station, TX (US);
Kenneth W. Smith, Tonkawa, OK (US);
William F. Harris, Palm Harbor, FL (US);
Phillips 66 Company, Houston, TX (US);
Abstract
A system for reducing pressure drop associated with the turbulent flow of asphaltenic crude oil through a conduit. The crude oil has a high asphaltene content and/or a low API gravity. Such reduction in pressure drop is achieved by treating the asphaltenic crude oil with a high molecular weight drag reducing polymer that can have a solubility parameter within about 20 percent of the solubility parameter of the heavy crude oil. The drag reducing polymer can also comprise the residues of monomers having at least one heteroatom.