Downhole upward blast hole blanking plug and using method thereof

A technology of blasthole plugging and blasthole, which is applied in the field of downhole upward blasthole plugging and downhole upward blasthole plug, can solve the problems of unsatisfactory effect, time-consuming and labor-intensive, etc., to increase prestress, increase Economic benefit, the effect of prolonging the reaction time

Pending Publication Date: 2022-01-28
湖北三鑫金铜股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many kinds of materials for the plugging of blastholes. In engineering, most of the plugging using crushed rock debris, mud, water or other mixed materials are all natural plugging methods without prestress, and the effect is not satisfactory. Time-consuming

Method used

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  • Downhole upward blast hole blanking plug and using method thereof
  • Downhole upward blast hole blanking plug and using method thereof
  • Downhole upward blast hole blanking plug and using method thereof

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with drawings and embodiments. The following technical solutions shown in the accompanying drawings are specific solutions of the embodiments of the present invention, and the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] The invention provides a downhole upward blasthole plug, such as Figure 1-Figure 3 As shown, a plugging head 1 is included, and a lead wire hole 2 is arranged on the plugging head, and a plurality of elastic blades 3 are arranged on the peripheral direction of the plugging head, and the elastic blades include a middle part 3-1, a first connecting part 3 -2 and the second connection part 3-3, the first con...

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Abstract

The invention discloses a downhole upward blast hole blanking plug comprising a plugging head, a lead hole is formed in the plugging head, a plurality of elastic blades are arranged on the plugging head in the circumferential direction, and each elastic blade comprises a middle part, a first connecting part and a second connecting part; the first connecting part is thinner than the middle part and is arranged close to the bottom surface of the middle part, and the second connecting part is thinner than the middle part and is arranged close to the top surface of the middle part; the first connecting part of one adjacent elastic blade is opposite to the second connecting part of the other adjacent elastic blade; the end, away from the plug, of the elastic blade is inclined relative to the plug, and the side, connected with the middle part, of the second connecting part is lower than the other side; in every two adjacent elastic blades, the first connecting part of one elastic blade and the second connecting part of the other elastic blade can be overlapped through extrusion. The blanking plug can be effectively prevented from moving, and the reaction time of detonation gas can be effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of engineering blasting, and in particular relates to a downhole upward blasthole plug and a method for using the same, which is suitable for plugging uphole uphole blastholes. Background technique [0002] In the actual project of underground blasting, the plugging of the upward blast hole is a very important link. The purpose of sealing the blast hole is to improve the utilization rate of the explosive and prolong the action time of the explosive gas in the blast hole to ensure that the explosive in the blast hole fully reacts. This is because the gas after the explosion will be accelerated to a very high speed in an instant. If the gas wants to rush out of the blast hole, it needs to overcome the inertial resistance of the blast hole plug itself and the adhesive force and frictional resistance between it and the blast hole wall. . Therefore, the state after the explosion of the explosive is prolonged, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/13E21B41/00F42D1/18
CPCE21B33/13E21B41/00F42D1/18
Inventor 柯波刘俊龙胡勇朱镕帅金山池秀文雷高张建华王维任高峰张文锋常剑
Owner 湖北三鑫金铜股份有限公司
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