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:
Jun. 20, 2006
Filed:
Oct. 01, 2003
Joseph C. H. Yeo, Singapore, SG;
Anthony J. Orchard, Bangkok, TH;
Keith E. Lewis, Bangkok, TH;
Christopher L. Weaver, Kuala Lumpur, ML;
Joseph C. H. Yeo, Singapore, SG;
Anthony J. Orchard, Bangkok, TH;
Keith E. Lewis, Bangkok, TH;
Christopher L. Weaver, Kuala Lumpur, ML;
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Devices and methods for methods for cleaning of excess cement from a production assembly as well as from the annulus surrounding the production assembly. A hydrostatic closed circulation valve (HCCV) assembly is described that is primarily actuatable between open and closed positions by varying hydraulic pressure in the flowbore of the production assembly. The valve assembly is useful for selectively circulating working fluid into the annulus from the flowbore of the production assembly.