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Shaped charge liner with large perforation diameter and deep penetration perforating charge and preparation method of shaped charge liner

A medicine-shaped cover and transmission hole technology, which is applied to earth-moving drilling, metal processing equipment, and mining fluids, etc., can solve the problems of the medicine-shaped cover being unable to release heat energy, the jet mass and velocity distribution of complex structure, etc., and achieve a significant cost reduction, Simple structure and consistent product performance

Active Publication Date: 2020-05-08
DAQING PETROLEUM ADMINISTRATION +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of this, the present invention provides a large-aperture liner for deep-penetrating perforating bullets, which solves the problem that the existing liner cannot release a large amount of heat energy and can only use high-speed metal flow to hit the target body to complete the formation of the tunnel. Causes the need for a complex liner to obtain the desired jet quality and velocity distribution

Method used

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  • Shaped charge liner with large perforation diameter and deep penetration perforating charge and preparation method of shaped charge liner
  • Shaped charge liner with large perforation diameter and deep penetration perforating charge and preparation method of shaped charge liner
  • Shaped charge liner with large perforation diameter and deep penetration perforating charge and preparation method of shaped charge liner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] 1. The formulation of the liner for large-aperture deep-penetrating perforating bullets:

[0036]

[0037]

[0038] 2. Powder mixing steps:

[0039] ① Calculate the mass of each component required for powder mixing according to the capacity of the mixer and the actual demand;

[0040] ② Add the lubricating oil to 1 / 5 of the electrolytic copper powder, and stir for 3-5 minutes until there is no obvious agglomeration; (this step can ensure the uniformity of the lubricating oil in the mixed powder);

[0041] ③ Add the remaining electrolytic copper powder and stir for 5-10 minutes; (this step can make the lubricating oil more evenly distributed);

[0042] ④ After passing the remaining metal powder through a 100-mesh sieve, add it to the electrolytic copper powder;

[0043] ⑤Stir for 30-50 minutes;

[0044] ⑥ During the powder mixing process, prevent debris from entering; after mixing the powder, visually check whether there is any agglomeration, if there is agglome...

experiment example 1

[0052] Comparative experimental data of 102-type perforating gun, 140-type casing deep-penetrating perforating charge and the large-aperture deep-penetrating perforating elastic performance of the example

[0053]

experiment example 2

[0055] Comparative experimental data of 89-type perforating gun, 140-type casing deep-penetrating perforating charge and the large-aperture deep-penetrating perforating elastic performance of the example

[0056]

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Abstract

The invention discloses a shaped charge liner with large perforation diameter and deep penetration perforating charge and a preparation method of the shaped charge liner. The formula composition of the shaped charge liner contains electrolytic copper powder, bismuth powder and tungsten powder, and is characterized by further containing bismuth powder, lead powder, aluminum powder, tin powder, ironpowder, zinc powder and lubricating oil. The problem that the desired jet mass and velocity distribution can only be obtained by the shaped charge liner with a complex structure due to the fact thatexisting shaped charge liners cannot release a large amount of heat energy, only high-speed metal flow can be used for impacting a target body to complete the formation of a perforation channel is solved.

Description

technical field [0001] The invention relates to a large-aperture deep-penetrating perforating bullet for perforating oil and gas wells. Background technique [0002] Deep-penetrating perforating charges take the perforation depth in the target as the main evaluation index, and have lower requirements for casing aperture; large-aperture perforating charges use the casing aperture in the target as the main evaluation index, and have lower requirements for perforation depth ; The large-aperture deep-penetrating perforating charge combines the advantages of the two perforating charges. While maintaining the perforation depth requirements of the deep-penetrating perforating charge, it provides a larger casing aperture to facilitate hydraulic fracturing during well completion. [0003] The design method of the large-aperture deep-penetrating perforating charge adopts the design concept of multi-cone powder liner, and utilizes the speed difference of the powder liner with different...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/119E21B43/116C22C30/04C22C30/02C22C30/06B22F1/00
CPCE21B43/119E21B43/116C22C30/02C22C30/04C22C30/06B22F1/10
Inventor 郭圣延陈树凡李立华郭嘉伟高毅峰汤占军
Owner DAQING PETROLEUM ADMINISTRATION
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