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:
Oct. 24, 2017
Filed:
Mar. 21, 2014
Shell Internationale Research Maatschappij B.v., The Hauge, NL;
Shell Oil Company, Houston, TX (US);
Erik Kerst Cornelissen, Rijswijk, NL;
Gerbrand Jozef Maria Van Eijden, Rijswijk, NL;
Frank Ruckert, Rijswijk, NL;
Wouter Besijn, Rijswijk, NL;
SHELL OIL COMPANY, Houston, TX (US);
Abstract
The invention concerns a method of applying a coating in a liquid state to wellbore tubing, such as threaded connector parts or casing sections, before running the tubing downhole. The coating only cures while running downhole. The coating is an elastic curable coating composition, comprising a curable elastic thermosetting resin, a curing agent and a water-absorbing expansion agent. During make-up of a connector, the liquid coating composition acts as lubricant. When cured, the coating will swell when contacted with a wellbore fluid to ensure leak-tightness.