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. 14, 1986
Filed:
Apr. 11, 1983
Roy R Vann, Katy, TX (US);
Emmet F Brieger, Nogal, NM (US);
GEO Vann, Inc., Houston, TX (US);
Abstract
A pipe string with a valve, pressure responsive member, packer, firing mechanism and perforating gun are suspended within a well to complete the well. The packer is set to form an upper and lower annulus, and the valve and pressure responsive member are disposed above the packer in the upper annulus. A signal transmission member extends from the pressure responsive member to the firing mechanism in the lower annulus. The valve is initially closed to prevent fluid flow through the flow bore of the pipe string. The upper annulus is pressurized to open the valve and create a pressure differential across the pressure responsive member. The pressure responsive member then transmits a signal through the signal transmission member to the firing mechanism to actuate the firing mechanism and detonate the perforating gun. Hydrocarbons from the formation then flow through the perforations and up the flow bore of the pipe string to the surface.