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Detonation energization explosion-propagating device for perforating gun string

A perforating gun, detonation technology, used in the production of fluids, wellbore/well components, earthmoving, etc.

Active Publication Date: 2014-08-27
WUHUA ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the quality problems that are easily produced in the current oil and gas well perforating gun string detonation sequence, and to provide a simple structure, The detonation energy-increasing detonation transmission device that can continuously increase the detonation energy of the perforation detonation transmission sequence

Method used

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  • Detonation energization explosion-propagating device for perforating gun string
  • Detonation energization explosion-propagating device for perforating gun string
  • Detonation energization explosion-propagating device for perforating gun string

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0024] as figure 1 As shown, the first preferred embodiment of the present invention, that is, the single-joint detonation energization and detonation transmission device includes a main body 1, an energizer 3, a first centralizing sleeve 6-1, a second centralizing sleeve 6-2, two detonation detonation Cable 7-1 and 7-2, two detonator tubes 8-1 and 8-2, righting circle 15. The body 1 is a cylinder with a ring of protruding edges in the middle and is made of 35CrCo material. There are five interlinked mounting holes along the axis inside it, and two sealing grooves and Outer screw thread, when being provided with two symmetrical clamping grooves 1A that wellhead hangs the gun on the outer protruding edge, this groove is a square groove, its side width 18~22mm, deep 9~20mm. The five installation holes on the body 1 are respectively ...

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Abstract

The invention discloses a detonation energization and transmission device for perforating gun strings, which comprises a body, an energizer, two detonating cords, two detonation tubes and a centralizing ring. The energizer is composed of a tube body, a point The ignition expansion tube formed by gunpowder and the expansion tube. The energizer is located in the middle of the main body and is centered by the centering ring, and the detonator and the detonating cord are on both sides in turn, and are centered by two centering sleeves. When forming a string of perforating guns, the two ends of the body are respectively connected to the upper and lower perforating guns, and the other ends of the two detonating cords are respectively connected to the perforating charges in the corresponding perforating guns. The invention is assembled between every two sections of perforating guns and interlayer guns in the perforating gun string used for oil and gas wells, which solves the problems of reliable perforation of the existing perforating gun string and reliable explosion transmission of the interlayer gun; Insufficient energy of the detonation equipment itself and the loss and attenuation of the detonation wave energy in the transmission process caused incomplete perforation and rework accidents such as gun jamming, which increased the reliability of perforation and improved the performance of perforation completion. security.

Description

technical field [0001] The invention relates to a blasting equipment, in particular to a detonation energy-increasing explosion transmission device suitable for perforation and explosion transmission sequences of oil and gas wells. Background technique [0002] With the continuous development of perforating technology, the well depth is continuously extended, the tubing transmission perforation section and the string of perforating guns are getting longer and longer, and the string of perforating guns is hundreds of meters or even thousands of meters long. Reliability is very important. The perforating gun string is a series connection of multiple perforating guns. The length of the perforating gun string is the same as the length of the perforated well section, and it is the longest transmission sequence among all the transmission sequences. At present, the perforating gun strings used for perforation all adopt the original joint gun (single, double) joints to connect mult...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/119E21B43/116
Inventor 王秀芝刘巩权王树申门媛媛王雪艳惠嘉陆琦
Owner WUHUA ENERGY TECH CO LTD
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