CN108955404A - A kind of perforating oil gas well pressure break super powder charge and preparation method - Google Patents
A kind of perforating oil gas well pressure break super powder charge and preparation method Download PDFInfo
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- CN108955404A CN108955404A CN201810764113.7A CN201810764113A CN108955404A CN 108955404 A CN108955404 A CN 108955404A CN 201810764113 A CN201810764113 A CN 201810764113A CN 108955404 A CN108955404 A CN 108955404A
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- powder charge
- oil gas
- gas well
- pressure break
- well pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/195—Manufacture
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
Abstract
The invention discloses a kind of perforating oil gas well pressure break super powder charge and preparation methods, wherein, perforating oil gas well pressure break with super powder charge by weight percentage, it is prepared from the following raw materials: binder 20%~50%, activated combustion agent 40%~70%, initiator 1%~5%, diluent 0.5%~2.5%, processing additive 1%~3%, the sum of weight percent are 100%.Finished product is made by liquid material premix, solid-liquid mixing, casting, ultraviolet light curing process in the raw material of the powder charge.The present invention selects epoxy resin as binder, and selecting copper oxide, ammonium nitrate, copper benzoate is activated combustion agent, selects active metal and non-metal powder as processing additive.Super powder charge igniting provided by the invention is reliable, flameholding produces bulk gas and high temperature hot particle stream and acts on preforation tunnel and duct ablation after burning, effective expanded hole holds, so that more gases is entered formation breakdown seam, promotes perforating oil gas well fracturing effect.
Description
Technical field
The invention belongs to oil-gas mining perforating and fracturing technical fields, and in particular to a kind of super dress of perforating oil gas well pressure break
Medicine and preparation method.
Background technique
Perforation completion is as the most common completion mode of oil-gas mining and the important link of complete well, the matter of perforating and fracturing
Amount has a major impact oil gas harvest efficiency.Better perforating and fracturing function and effect in order to obtain are perforated in conventional energy-gathering jetting
On the basis of, people constantly explore new Perforating Techniques.Last century the seventies, combined perforation fracturing technology start in beauty
It is promoted during state's oil-gas mining, achieves preferable increasing yield and injection effect.Combined perforation fracturing is solid propellant gunpowder
Powder charge is introduced into perforating system, and while lined-cavity charge metal jet is perforated, it is high that solid propellant gunpowder is ignited generation
Warm high-pressure gas carries out pressure break seam to stratum along perforation tunnel, generates a plurality of microcrack, improves nearly well band flow conductivity, reaches
Increase production purpose.By nearly development in 50 years, the different gunpowder dresses such as " built-in ", " split type ", " external " have been formd
The combined perforation fracturing device of medicine structure, at home, outer each elephant is used widely.
Although the charge constitution of combined perforation fracturing is varied, its gunpowder used is inherently solid propellant propulsion
Agent.Solid propellant combustion generated gas in perforating gun and pit shaft, pit shaft is interior to form partial high pressure, then, a part of gas
By the eyelet on perforating gun and casing, enter in the perforation tunnel in stratum to formation breakdown seam;Meanwhile another part
The gas that duct cannot be entered, generates interaction with well liquid and down-hole string in the wellbore.Eyelet on perforating gun, casing and
Perforation tunnel volume size decides into the duct combustion gas quantity that layer directly acts on over the ground, directly affects combined perforation fracturing
Function and effect.Lined-cavity charge is perforated using metal jet, cannot be considered in terms of piercing aperture and depth, conventional solid propellant can only
Gas is generated after combustion, cannot promote perforating gun, the perforation size on casing and stratum perforation tunnel volume, this leads to routine
When combined perforation fracturing is constructed, the amount of gas by eyelet access aperture road is limited, and most of gas cannot enter duct, passes through
With pressure gear liquid and tubing string interaction consumption energy.Preforation tunnel and duct volume, limitation enter stratum and generate useful effect
Amount of gas, this is the main reason for causing combined perforation fracturing technology construction action effect limited.Meanwhile duct cannot be entered
Gas and pressure gear liquid and tubing string interact, not only consume energy, reduce combined perforation fracturing construction action efficiency, also make swollen
The risk of the accidents such as rifle, card rifle, casing damage also greatly improves.
Summary of the invention
It is for the defects in the prior art and insufficient, the present invention provides a kind of super powder charge of perforating oil gas well pressure break and
Preparation method, overcomes that existing perforating technology gas effciency is high, the inapparent defect of perforating and fracturing effect.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of perforating oil gas well pressure break is prepared from the following raw materials by weight percentage with super powder charge: binder 20%
~50%, activated combustion agent 40%~70%, initiator 1%~5%, diluent 0.5%~2.5%, processing additive 1%~
3%, the sum of weight percent is 100%.
Optionally, the binder is epoxy resin F44.
Optionally, the activated combustion agent based on parts by weight, is made of following raw material: 1 part of aluminium powder, copper oxide 2~4
Part, 1~3 part of ammonium nitrate, 0.01~0.5 part of copper benzoate.
Optionally, the initiator is N, N- diethyl ethanamine.
Optionally, the diluent is epoxy propane butyl ether or o-tolyl glycidol ether.
Optionally, the processing additive is one of carbon black, magnesium powder, nickel powder, titanium valve or more than one mixtures.
The present invention also provides a kind of preparation method of super powder charge of perforating oil gas well pressure break, this method uses liquid object
Binder, initiator, diluent, i.e., be sufficiently mixed first and premixed by material premix, solid-liquid mixing, casting, curing process
Then activated combustion agent, processing additive are added in pre-composition and carry out solid-liquid and be mixed to get uniform medicine slurry by object, then by medicine slurry
It is poured into curing molding in mold and obtains product.
Optionally, this method specifically includes the following steps:
Binder, initiator, diluent are added in mixing kettle and are premixed 15 minutes by formula rate, obtained pre- by step 1
Mixed object;
Activated combustion agent, processing additive are added into mixing kettle for step 2, mix 30-50 minutes, obtain uniform medicine
Slurry;
Medicine slurry is poured into mold by step 3;
Mold is put into the curing apparatus with ultraviolet source, spectral wavelength 350nm~450nm by step 4, solidification
150s~200s, moves back mould or does not move back mould and obtain product.
Optionally, the cured mode is photocuring.
Compared with prior art, the present invention beneficial has the technical effect that
(I) present invention is not under the premise of influencing the basic punching quality of perforating bullet and high pressure gas fracturing seam, by super
Energy material in energy powder charge is under detonation wave percussion other than generating bulk gas, moreover it is possible to exothermic reaction occur, formed
High-temp solid hot spot particle generates ablation effect to preforation tunnel and perforation tunnel by high temperature hot particle, increases eyelet and hole
Road size effectively increases Perforation and holds, and reduces more gases to the effective pressure break seam in stratum by eyelet access aperture road
Operating risk improves perforating and fracturing function and effect.For the technology in perforating system, the single limited work of gas can only be generated by eliminating
It is realized using the high energy powder charge of completely new formula design to preforation tunnel, duct and stratum with the solid propellant gunpowder of effect
Effective synergistic effect, improve perforating and fracturing function and effect and working security.
(II) addition of perforating oil gas well pressure break binder in super powder charge provided by the present invention, plays generation gas
With the effect of release heat, perforating and fracturing effect can be implemented to stratum, while promoting and maintaining activated combustion agent combustion reaction,
High temperature solid particles are generated to preforation tunnel and pore canal role.
(III) perforating oil gas well pressure break provided by the present invention in super powder charge activated combustion agent metal onidiges plus
Enter, play and amount of heat is discharged by reaction, generates high-temp solid hot particle stream;The addition of non-metal oxidant, plays
The effect of bulk gas is generated by reaction.High temperature solid particles generate ablation to preforation tunnel and duct with shock wave, increase
Eye diameter and duct volume make more gases can enter duct to formation function, improve the effect of perforating and fracturing effect.
(IV) perforating oil gas well pressure break provided by the present invention non-metal oxidant in super powder charge activated combustion agent
It is added, also acts the effect of combustion adjuvant, the binder oxygen that burning needs is provided, guarantee that generating sufficient amount gas keeps to stratum
Perforating and fracturing effect and stirring and progradation to high temperature hot particle.
(V) ultraviolet curing process provided by the present invention shortens cure cycle, improves production efficiency, improve product product
Matter reduces production cost, green close friend's no pollution to the environment.
Specific embodiment
In order to enable those skilled in the art to more fully understand, technical solution of the present invention is practiced, below with reference to specific
The invention will be further described for embodiment, but illustrated embodiment is not as a limitation of the invention.
Experimental method described in following each embodiments is unless otherwise specified conventional method.
It should be noted that the binder that uses of the present invention is epoxy resin F44, epoxide number 0.41~0.47, viscosity 6~
10Pa.S (25 DEG C), the degree of polymerization 0.1~0.28, relative molecular weight 438~462.There are also gas-forming reaction, F44 in the present invention by F44
It reacts under perforation ejection stream and detonation wave percussion, generates bulk gas, enter ground by preforation tunnel and duct
Layer generates pressure break effect;Simultaneously, moreover it is possible to discharge amount of heat, initiate and maintain activated combustion agent combustion reaction.
The activated combustion agent that the present invention uses is aluminium powder, copper oxide, ammonium nitrate, copper benzoate composition, is released in reaction (1)
Under the heat initiation put, aluminium powder contained by activated combustion agent and copper oxide react and discharge amount of heat, generate high temperature
Solid particle;Ammonium nitrate, which decomposes to react, generates bulk gas.Copper benzoate is combustionregulator, control combustion reaction speed
Degree, it is ensured that flameholding.
2Al+3CuO→3Cu+Al2O3+Q (2)
4NH4NO3→3N2+2N2O+8H2O (3)
Above-mentioned reaction (1), reaction (2) release a large amount of heat, and the solid particle temperature for generating burning greatly improves,
Up to 3000 DEG C or more.Reaction (1), reaction (3), which generate the high temperature hot particle that bulk gas generates reaction (2), stirring work
With, and high temperature hot particle is advanced into preforation tunnel and duct, ablation effect is generated to preforation tunnel and duct, increases Perforation
Diameter and duct volume promote greater number of gas that can generate pressure break effect to stratum.
In order to verify the present embodiment the super powder charge of perforating oil gas well pressure break perforating and fracturing effect, conventional 102 will penetrate
Hole bullet assembles super powder charge made from the present embodiment and carries out ground experiment, tests perforation property by ground steel target, referring in particular to
" oil/gas well jet perforating equipment method for testing performance " (GB/T20488-2006);It is surveyed by surge pressure and effective acting time
Hole crush properties are fired for adjustment, referring in particular to " oil/gas well composite perforator general technical specifications and detection method " (SY/T6824-
2011)。
Embodiment 1:
The present embodiment provides a kind of super powder charge of perforating oil gas well pressure break, by weight percentage, by following raw material system
At: binder 37%, activated combustion agent 58%, initiator 2%, diluent 2%, processing additive 1%.Wherein, binder is
Epoxy resin F44;Activated combustion agent based on parts by weight, is made of following raw material: 1 part of aluminium powder, 3.5 parts of copper oxide, ammonium nitrate 2
Part, 0.1 part of copper benzoate;Initiator is N, N- diethyl ethanamine;Diluent is o-tolyl glycidol ether;Processing additive
For carbon black, magnesium powder and titanium valve and its weight ratio is 1:1:1.
The preparation method of the super powder charge of above-mentioned perforating oil gas well pressure break the following steps are included:
Step 1: using vertical mixer, and epoxy resin of binder F44, initiator N is added by above-mentioned mass percent,
N- diethyl ethanamine, diluent o-tolyl glycidol ether premix 15 minutes, obtain pre-composition;
Step 2: above-mentioned activated combustion agent and processing additive being added into pre-composition, mix 50 minutes, obtain uniform medicine
Slurry;
Step 3: uniform medicine slurry is poured into ready mold;
Step 4: the mold with medicine slurry being put into in ultraviolet light curing apparatus, spectral wavelength 350nm~450nm,
Solidify 200s, obtains product.The performance test results of the present embodiment are as shown in table 1.
Embodiment 2:
The present embodiment provides a kind of super powder charge of perforating oil gas well pressure break, by weight percentage, by following raw material system
At: binder 34%, activated combustion agent 61%, initiator 1.8%, diluent 2.5%, processing additive 0.7%.Wherein, it glues
Knot agent is epoxy resin F44;Activated combustion agent based on parts by weight, is made of following raw material: 1 part of aluminium powder, 4 parts of copper oxide, nitre
1.5 parts of sour ammonium, 0.2 part of copper benzoate;Initiator is N, N- diethyl ethanamine;Diluent is o-tolyl glycidol ether;Work
Skill additive is magnesium powder, nickel powder and titanium valve and its weight ratio is 1:1:1.
The preparation method of the super powder charge of above-mentioned perforating oil gas well pressure break the following steps are included:
Step 1: using vertical mixer, and epoxy resin of binder F44, initiator N is added by above-mentioned mass percent,
N- diethyl ethanamine, diluent o-tolyl glycidol ether premix 15 minutes, obtain pre-composition;
Step 2: above-mentioned activated combustion agent and processing additive being added into pre-composition, mix 50 minutes, obtain uniform medicine
Slurry;
Step 3: uniform medicine slurry is poured into ready mold;
Step 4: the mold with medicine slurry being put into in ultraviolet light curing apparatus, spectral wavelength 350nm~450nm,
Solidify 180s, moves back mould and obtain product.The performance test process of the present embodiment is substantially the same manner as Example 1, the performance of the present embodiment
Test result is as shown in table 1.
Embodiment 3:
The present embodiment provides a kind of super powder charge of perforating oil gas well pressure break, by weight percentage, by following raw material system
At: binder 31%, activated combustion agent 63%, initiator 2.5%, diluent 2.5%, processing additive 1%.Wherein, it bonds
Agent is epoxy resin F44;Activated combustion agent based on parts by weight, is made of following raw material: 1 part of aluminium powder, 4 parts of copper oxide, nitric acid
1.5 parts of ammonium, 0.2 part of copper benzoate;Initiator is N, N- diethyl ethanamine;Diluent is o-tolyl glycidol ether;Technique
Additive is magnesium powder, carbon black and titanium valve and its weight ratio is 1:1:1.
The preparation method of the super powder charge of above-mentioned perforating oil gas well pressure break the following steps are included:
Step 1: using vertical mixer, and epoxy resin of binder F44, initiator N is added by above-mentioned mass percent,
N- diethyl ethanamine, diluent o-tolyl glycidol ether premix 15 minutes, obtain pre-composition;
Step 2: above-mentioned activated combustion agent and processing additive being added into pre-composition, mix 50 minutes, obtain uniform medicine
Slurry;
Step 3: uniform medicine slurry is poured into ready mold;
Step 4: the mold with medicine slurry being put into in ultraviolet light curing apparatus, spectral wavelength 350nm~450nm,
Solidify 180s, moves back mould and obtain product.The performance test process of the present embodiment is substantially the same manner as Example 1, the performance of the present embodiment
Test result is as shown in table 1.
Embodiment 4:
The present embodiment provides a kind of super powder charge of perforating oil gas well pressure break, by weight percentage, by following raw material system
At: binder 20%, activated combustion agent 70%, initiator 5%, diluent 2%, processing additive 3%.Wherein, binder is
Epoxy resin F44;Activated combustion agent based on parts by weight, is made of following raw material: 1 part of aluminium powder, 2 parts of copper oxide, ammonium nitrate 1
Part, 0.01 part of copper benzoate;Initiator is N, N- diethyl ethanamine;Diluent is o-tolyl glycidol ether;Technique addition
Agent is carbon black, magnesium powder and titanium valve and its weight ratio is 1:1:1.
The preparation method of the super powder charge of above-mentioned perforating oil gas well pressure break the following steps are included:
Step 1: using vertical mixer, and epoxy resin of binder F44, initiator N is added by above-mentioned mass percent,
N- diethyl ethanamine, diluent o-tolyl glycidol ether premix 15 minutes, obtain pre-composition;
Step 2: above-mentioned activated combustion agent and processing additive being added into pre-composition, mix 50 minutes, obtain uniform medicine
Slurry;
Step 3: uniform medicine slurry is poured into ready mold;
Step 4: the mold with medicine slurry being put into in ultraviolet light curing apparatus, spectral wavelength 350nm~450nm,
Solidify 200s, obtains product.The performance test results of the present embodiment are as shown in table 1.
Embodiment 5:
The present embodiment provides a kind of super powder charge of perforating oil gas well pressure break, by weight percentage, by following raw material system
At: binder 50%, activated combustion agent 46%, initiator 1%, diluent 0.5%, processing additive 2.5%.Wherein, it bonds
Agent is epoxy resin F44;Activated combustion agent based on parts by weight, is made of following raw material: 1 part of aluminium powder, 4 parts of copper oxide, nitric acid
3 parts of ammonium, 0.5 part of copper benzoate;Initiator is N, N- diethyl ethanamine;Diluent is o-tolyl glycidol ether;Technique adds
Add that agent is carbon black, magnesium powder and titanium valve and its weight ratio is 1:1:1.
The preparation method of the super powder charge of above-mentioned perforating oil gas well pressure break the following steps are included:
Step 1: using vertical mixer, and epoxy resin of binder F44, initiator N is added by above-mentioned mass percent,
N- diethyl ethanamine, diluent o-tolyl glycidol ether premix 15 minutes, obtain pre-composition;
Step 2: above-mentioned activated combustion agent and processing additive being added into pre-composition, mix 50 minutes, obtain uniform medicine
Slurry;
Step 3: uniform medicine slurry is poured into ready mold;
Step 4: the mold with medicine slurry being put into in ultraviolet light curing apparatus, spectral wavelength 350nm~450nm,
Solidify 200s, obtains product.The performance test results of the present embodiment are as shown in table 1.
Embodiment 6:
The present embodiment provides a kind of super powder charge of perforating oil gas well pressure break, by weight percentage, by following raw material system
At: binder 50%, activated combustion agent 40%, initiator 5%, diluent 2%, processing additive 3%.Wherein, binder is
Epoxy resin F44;Activated combustion agent based on parts by weight, is made of following raw material: 1 part of aluminium powder, 4 parts of copper oxide, ammonium nitrate 3
Part, 0.5 part of copper benzoate;Initiator is N, N- diethyl ethanamine;Diluent is o-tolyl glycidol ether;Processing additive
For carbon black, magnesium powder and titanium valve and its weight ratio is 1:1:1.
The preparation method of the super powder charge of above-mentioned perforating oil gas well pressure break the following steps are included:
Step 1: using vertical mixer, and epoxy resin of binder F44, initiator N is added by above-mentioned mass percent,
N- diethyl ethanamine, diluent o-tolyl glycidol ether premix 15 minutes, obtain pre-composition;
Step 2: above-mentioned activated combustion agent and processing additive being added into pre-composition, mix 50 minutes, obtain uniform medicine
Slurry;
Step 3: uniform medicine slurry is poured into ready mold;
Step 4: the mold with medicine slurry being put into in ultraviolet light curing apparatus, spectral wavelength 350nm~450nm,
Solidify 200s, obtains product.The performance test results of the present embodiment are as shown in table 1.
Comparative example 1:
This comparative example provides a kind of perforating oil gas well pressure break powder charge, which is only in that with the difference of embodiment 1, activity
Ammonium nitrate is added without in incendiary agent, constituent content is all substituted by copper oxide, the type and dosage of remaining raw material require with
Embodiment 1 is identical.The perforating oil gas well pressure break of this comparative example is same as Example 1 with powder charge preparation method.This comparative example property
Energy test process is substantially the same manner as Example 1, this comparative example the performance test results are as shown in table 1.
Comparative example 2:
This comparative example provides a kind of perforating oil gas well pressure break powder charge, which is only in that with the difference of embodiment 1, activity
Copper oxide is added without in incendiary agent, constituent content is all substituted by ammonium nitrate, the type and dosage of remaining raw material require with
Embodiment 1 is identical.The perforating oil gas well pressure break of this comparative example is same as Example 1 with powder charge preparation method.This comparative example property
Energy test process is substantially the same manner as Example 1, this comparative example the performance test results are as shown in table 1.
Comparative example 3:
This comparative example provides a kind of perforating oil gas well pressure break powder charge, and the material is substantially the same manner as Example 1, and difference is only
It is, uses poly- fourth isoolefine to substitute epoxy resin as binder, the type and dosage of remaining raw material require and 1 phase of embodiment
Together.The perforating oil gas well pressure break of this comparative example is same as Example 1 with powder charge preparation method.The performance test process of this comparative example
Substantially the same manner as Example 1, this comparative example the performance test results are as shown in table 1.
1 powder charge performance test table of table
As shown in Table 1:
Known to Examples 1 to 6 comparison: after the super powder charge of conventional 102 perforating bullets assembly Examples 1 to 6, the examination of ground steel target
It tests piercing aperture, penetration depth, surge pressure, effective acting time index and is much higher than standard requirements, show Examples 1 to 6
Super powder charge have good perforating and fracturing effect, wherein 1 comprehensive performance of embodiment is best.
Known to embodiment 1 and comparative example 1 compare: if other conditions are the same, conventional 102 perforating bullets assembly only adds
Enter only plus a kind of powder charge of oxide of copper oxide, surge pressure and effective acting time significantly reduce.Show that oxygen is only added
Change the powder charge that copper obtains, perforating and fracturing performance cannot be improved.
Known to embodiment 1 and comparative example 2 compare: if other conditions are the same, conventional 102 perforating bullets assembly only adds
Enter only plus a kind of powder charge of oxide of ammonium nitrate, piercing aperture are remarkably decreased, surge pressure and effective acting time reduce.
Show that the powder charge that ammonium nitrate obtains only is added, perforating and fracturing performance cannot be improved.
Known to embodiment 1 and the comparison of comparative example 3: if other conditions are the same, conventional 102 perforating bullets assembly is selected
Epoxy resin as binder powder charge than selecting poly- fourth isoolefine as the powder charge of binder, when surge pressure and useful effect
Between be obviously improved.This is because comparing with poly- fourth isoolefine, epoxy resin contains oxygen element, can send out under oxygen free condition in perforating gun
Raw combustion gas, has gas deliverability.Show that the binder with gas deliverability can improve the perforating and fracturing of powder charge
Energy.
Claims (9)
1. a kind of super powder charge of perforating oil gas well pressure break, which is characterized in that by weight percentage, be prepared from the following raw materials:
Binder 20%~50%, activated combustion agent 40%~70%, initiator 1%~5%, diluent 0.5%~2.5%, technique
Additive 1%~3%, the sum of weight percent are 100%.
2. the super powder charge of perforating oil gas well pressure break as described in claim 1, which is characterized in that the binder is asphalt mixtures modified by epoxy resin
Rouge F44.
3. the super powder charge of perforating oil gas well pressure break as described in claim 1, which is characterized in that the activated combustion agent is with weight
Number meter is measured, is made of following raw material: 1 part of aluminium powder, 2~4 parts of copper oxide, 1~3 part of ammonium nitrate, copper benzoate 0.01~0.5
Part.
4. the super powder charge of perforating oil gas well pressure break as described in claim 1, which is characterized in that the initiator is N, N- bis-
Ethyl ethamine.
5. the super powder charge of perforating oil gas well pressure break as described in claim 1, which is characterized in that the diluent is epoxy third
Alkane butyl ether or o-tolyl glycidol ether.
6. the super powder charge of perforating oil gas well pressure break as described in claim 1, which is characterized in that the processing additive is charcoal
One of black, magnesium powder, nickel powder, titanium valve or more than one mixtures.
7. a kind of preparation method of the super powder charge of perforating oil gas well pressure break as described in claim 1 to 6 any claim,
It is characterized in that, this method is mixed using liquid material premix, solid-liquid, casting, curing process, i.e., first by binder, initiation
Agent, diluent are sufficiently mixed to obtain pre-composition, and then activated combustion agent, processing additive are added in pre-composition and carry out solid-liquid
It is mixed to get uniform medicine slurry, then medicine slurry is poured into curing molding in mold and obtains product.
8. preparation method as claimed in claim 7, which is characterized in that this method specifically includes the following steps:
Binder, initiator, diluent are added in mixing kettle and are premixed 15 minutes by formula rate, obtain pre-composition by step 1;
Activated combustion agent, processing additive are added into mixing kettle for step 2, mix 30-50 minutes, obtain uniform medicine slurry;
Medicine slurry is poured into mold by step 3;
Mold is put into the curing apparatus with ultraviolet source, spectral wavelength 350nm~450nm by step 4, solidifies 150s
~200s, moves back mould or does not move back mould and obtain product.
9. preparation method as claimed in claim 7, which is characterized in that the cured mode is photocuring.
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CN110454131A (en) * | 2019-08-19 | 2019-11-15 | 中国石油大学(华东) | A kind of fill-type detonation cumulative volume fracturing method in seam |
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CN111188599A (en) * | 2020-02-22 | 2020-05-22 | 大庆金祥寓科技有限公司 | Energy-releasing expansion perforation device |
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CN113294134A (en) * | 2021-05-31 | 2021-08-24 | 中国矿业大学 | Hydraulic fracturing and methane in-situ blasting synergistic fracturing permeability-increasing method |
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