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:
Jul. 16, 2019
Filed:
Feb. 22, 2016
Applicant:
S.p.c.m. SA, Andrezieux Boutheon, FR;
Inventors:
Emmanuel Pich, Saint Priest en Jarez, FR;
Julien Bonnier, Andrezieux Boutheon, FR;
Assignee:
S.P.C.M. SA, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
E21B 43/16 (2013.01);
Abstract
A pressure regulating device for the injection of an aqueous polymer solution into an oil well, the device consisting of a series of straight tubes each with a pressure gauge, each tube being separated by a valve, where the valves are gate valves and/or needle valves. A method to reduce the injection pressure of an aqueous polymer solution according to the pressure of the well using the device.