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:
Jan. 10, 2006
Filed:
Apr. 07, 2003
Stephen N. Zuklic, Kingwood, TX (US);
Allen W. Womble, Maurice, LA (US);
Wilfred Schexnayder, Jr., Houston, TX (US);
Gary Corbett, Willis, TX (US);
Richard Y. Xu, Tomball, TX (US);
David Rothers, The Woodlands, TX (US);
Brian Roth, Houston, TX (US);
Russell T. Louviere, Arnaudville, LA (US);
Stephen N. Zuklic, Kingwood, TX (US);
Allen W. Womble, Maurice, LA (US);
Wilfred Schexnayder, Jr., Houston, TX (US);
Gary Corbett, Willis, TX (US);
Richard Y. Xu, Tomball, TX (US);
David Rothers, The Woodlands, TX (US);
Brian Roth, Houston, TX (US);
Russell T. Louviere, Arnaudville, LA (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A gravel packing system featuring pressure actuated sliding sleeve valves mounted to an exterior annulus around a blanking pipe for screen sections is disclosed. An internal sliding sleeve valve is provided for subsequent closure of access through the screens. The presence of the annulus between the blanking pipe and the screen permits a backup access through perforating the blanking pipe while not damaging the screen. The sliding sleeve valves that are mounted internally and externally on the blanking pipe are removable apart from the screen section that already has gravel packed around it, if they fail to operate and need repair.