Method and apparatus for firing a perforating gun and simultaneo

Details Method and apparatus for firing a perforating gun and simultaneo Method and apparatus for firing a perforating gun and simultaneo

1985-02-28

1986-07-08

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166297, 175 455, 73155, E21B 4311, E21B 4706

Patent

active

045987718

ABSTRACT:
An improved downhole pressure measuring apparatus includes a flow tube conveying pressurized fluid from a fluid source on the surface into a borehole. The fluid flow and pressure is measured at the surface and the downhole pressure is determined.
A perforating gun firing mechanism may be attached to a lower end of the flow tube and positioned in the borehole respective to a perforating gun for the firing thereof. The gun is fired by manipulating the flow tubing and the downhole pressure is simultaneously recorded.

REFERENCES:
patent: 2360742 (1944-10-01), Toth et al.
patent: 3637012 (1972-01-01), Sizer et al.
patent: 3706344 (1972-12-01), Vann
patent: 3717095 (1973-02-01), Vann
patent: 3871448 (1975-03-01), Vann et al.
patent: 3931855 (1976-02-01), Vann et al.
patent: 4040485 (1977-08-01), Vann et al.
patent: 4151880 (1979-05-01), Vann

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