Well completion method and apparatus

Details Well completion method and apparatus Well completion method and apparatus

1983-04-11

1986-01-14

Leppink, James A.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

With wall engaging packer or anchor

175 454, 166 551, 166297, E21B 43185

Patent

active

045640769

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.

REFERENCES:
patent: 2125487 (1938-08-01), Church
patent: 2304408 (1942-12-01), Holifield
patent: 2381929 (1945-08-01), Schlumberger
patent: 3011551 (1961-12-01), Young et al.
patent: 3040808 (1962-06-01), Schramm et al.
patent: 3189094 (1965-06-01), Hyde
patent: 3215074 (1965-11-01), Robinson, Jr. et al.
patent: 4484632 (1984-11-01), Vann
"Flopelrol Johnston Tubing Conveyed Perforating Systems", Schlumberger, Jul.-1983.

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