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Explosive for controlling volume energy density of explosive source, explosive source and preparing process thereof

A technology of energy density and manufacturing process, applied in explosives and other directions, can solve the problems of affecting the signal-to-noise ratio and frequency of seismic waves, low blast source energy, etc., and achieve the effect of enhancing action time, wide sources and enhancing energy.

Inactive Publication Date: 2010-12-08
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this product is that the energy of the explosion source is low, the energy generated by the explosion is partly used for the excessive damage of the medium, and the energy used to cause the seismic wave is less, thus affecting the signal-to-noise ratio and frequency of the seismic wave

Method used

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  • Explosive for controlling volume energy density of explosive source, explosive source and preparing process thereof
  • Explosive for controlling volume energy density of explosive source, explosive source and preparing process thereof
  • Explosive for controlling volume energy density of explosive source, explosive source and preparing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1 Making the seismic source charge column for controlling the volumetric energy density of the explosion source

[0017] Take 1.7kg of ammonium nitrate, 1.7kg of TNT and 0.6kg of flake aluminum powder. Grind ammonium nitrate into powder, heat TNT at 80-85°C to melt into liquid state, add ammonium nitrate powder into liquid TNT and mix evenly, then add aluminum powder and mix evenly. Put the fluid mixture above into the shell of the seismic source, insert the detonator, and finally seal it. The charge density of the source charge is 1.45g / cm 3 , the detonation heat is 5275KJ / kg, and the detonation velocity is 6470m / s.

Embodiment 2

[0018] Embodiment 2 Contrast experiment of the seismic source charge column and other source charge columns for controlling the volumetric energy density of the explosion source

[0019] Table 1

[0020] sample 1

sample 2

sample 3

Sample 4

Sample 5

Sample 6

Sample 7

Embodiment 1 grain column

ammonium black

Juao

TNT

conventional explosives

poly black

Poly black aluminum

[0021] Take other explosives of the same charge (4kg) as in Example 1 to fill the seismic source charge column, and the components of each sample are shown in Table 1. Among them, the ammonium nitrate of sample 2 contains 42.5wt% of ammonium nitrate, 42.5wt% of TNT and 15wt% of RDX; the conventional explosive of sample 5 contains 50wt% of ammonium nitrate, 50wt% of TNT; Suojin 85wt%, flake aluminum powder 15wt%.

[0022] The seismic source effect test was carried out in Shengli Oilfield. The above-mentioned source grain samples 1-7 were r...

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Abstract

The invention provides an explosive for controlling volume energy density of an explosion source, which comprises 40-53wt% of ammonium nitrate, 36-48wt% of trinitrotoluene and 5-20wt% of aluminum powder. The preparing process of the explosive comprises the following steps: A. taking 40-53wt% of the ammonium nitrate, 36-48wt% of the trinitrotoluene and 5-20wt% of the aluminum powders; B. grinding the ammonium nitrate into powder, heating the trinitrotoluene for melting the trinitrotoluene into a liquid state at the temperature of 80-85 DEG C, adding the obtained ammonium nitrate powder to the liquid trinitrotoluene and evenly mixing, then adding the aluminum powder to the obtained mixed solution and evenly mixing; and C. sub-packaging the obtained flow-state mixture into an explosive source shell, inserting a detonating component, and finally sealing the cover. The invention further provides seismic charge obtained by the preparing process. In the invention, the high-energy metal ammonium power is added to the explosive, thus greatly improving heat of explosion of the explosive and acting capability of the explosive, and prolonging time of the explosive products acting on medium around the explosive to generate a high-quality seismic wave signal.

Description

technical field [0001] The invention relates to an explosive, a seismic source and a manufacturing process for seismic exploration, in particular to an explosive, a seismic source and a manufacturing process for controlling the volumetric energy density of an explosive source. Background technique [0002] In geophysical exploration, in order to accurately ascertain the stratum structure and the distribution of mineral deposits in a certain area, the measures often taken are to drill a deep well at a specific point, and then put the source charge at a certain depth to detonate The seismic waves generated behind the source charge are analyzed to draw a geological structure map, which provides a scientific basis for resource industries such as prospecting for ore, water and oil. [0003] The explosives commonly used in the existing seismic source charge column are ammonium nitrate, TNT or their mixtures. The defect of this product is that the energy of the explosion source is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/10
Inventor 白春华韩文功李建平王仲琦刘庆明
Owner BEIJING INSTITUTE OF TECHNOLOGYGY