Well apparatus including a pump and a firing head adapted to be

Details Well apparatus including a pump and a firing head adapted to be Well apparatus including a pump and a firing head adapted to be

1990-07-26

1991-08-20

Dang, Hoang C.

Wells

Means for perforating, weakening, bending or separating pipe...

With disparate below ground feature

166105, 166107, 175 454, E21B 431185

Patent

active

050405977

ABSTRACT:
A perforating gun having no firing head and no primary explosives is attached to a tubing string and the tubing string is run into a borehole. A new well apparatus, having a firing head, is run into the tubing string until the firing head is adjacent the perforating gun. The firing head in the well apparatus detonates, firing the perforating gun. If the firing head fails to detonate, one need only remove the well apparatus from the tubing string in order to gain access to the firing head, for repair and replacement thereof. One need not remove the tubing string to gain access to the firing head.

REFERENCES:
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patent: 4440231 (1984-04-01), Martin
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patent: 4886126 (1989-12-01), Yates, Jr.
patent: 4898244 (1990-02-01), Schneider et al.
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patent: 4924952 (1990-05-01), Schneider
Soviet Inventions Illustrated, P.Q. Sections, week 8539, Nov. 6, 1985, Derwent Publications LTD, Su-1 143-831 (IVAN).
SPE 18839, "Tubing Conveyed Perforating Sucker Rod Pumping Wells," 1989, Society of Petroleum Engineers.
Vann Systems brochure, 1988; (1) "Standard Rod Pump Completion," (2) Electric Submersible Pump Completion, and (3) Bypass Assembly.

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