Method and device for performing perforating operations in a wel

Wells – Processes – With indicating – testing – measuring or locating

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166 551, 166 66, 166113, 166254, 166297, 166385, 175 451, 175 452, E21B 43119

Patent

active

050444379

ABSTRACT:
A method and device for perforating a wall of a well by use of a tool such as an explosive gun includes the use of an intervention set. This set has a perforating tool associated with a measuring box such as a logging sonde and temperature and pressure sensors which is taken down into the well. The set is suspended by a linking cable on a support frame which can be locked inside and at the base of a tubing. The tubing is taken down to the intervention area and blocked by a packer. The support frame and the set are displaced by a control cable lowered down from the surface and the best places for carrying out shootings or perfortions in the well are determined through measurements made by the measuring box. Sensors contained in the box allow an operator to check the results. After the intervention, the perforating tool, for example, an explosive gun, is left in the well and the support frame and the box are taken up in order to clear the inside of the tubing.

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