CN111734365A - Pressurized perforating bullet with combined type cartridge case - Google Patents
Pressurized perforating bullet with combined type cartridge case Download PDFInfo
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- CN111734365A CN111734365A CN202010672163.XA CN202010672163A CN111734365A CN 111734365 A CN111734365 A CN 111734365A CN 202010672163 A CN202010672163 A CN 202010672163A CN 111734365 A CN111734365 A CN 111734365A
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- China
- Prior art keywords
- pressurizing unit
- composite
- pressurized
- cartridge case
- liner
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- 239000002131 composite material Substances 0.000 claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 26
- 239000000446 fuel Substances 0.000 claims abstract description 24
- 238000002485 combustion reaction Methods 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 17
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 claims description 15
- 229910001487 potassium perchlorate Inorganic materials 0.000 claims description 15
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 10
- 239000005751 Copper oxide Substances 0.000 claims description 10
- 229910000431 copper oxide Inorganic materials 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 7
- 239000004917 carbon fiber Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract description 31
- 230000000694 effects Effects 0.000 abstract description 18
- 239000003721 gunpowder Substances 0.000 abstract description 18
- 238000009991 scouring Methods 0.000 abstract description 10
- 239000002360 explosive Substances 0.000 abstract description 7
- 238000005056 compaction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 14
- 239000007789 gas Substances 0.000 description 10
- 238000005474 detonation Methods 0.000 description 9
- 239000003814 drug Substances 0.000 description 6
- 238000004880 explosion Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 238000010420 art technique Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/119—Details, e.g. for locating perforating place or direction
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/06—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being an inorganic oxygen-halogen salt
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/12—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being two or more oxygen-yielding compounds
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/116—Gun or shaped-charge perforators
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention relates to a pressurized perforating bullet with a composite shell case, which comprises a shell case, a liner and energy-gathered gunpowder, wherein the shell case is provided with a cavity with a downward opening, the liner is arranged in the shell case, and the energy-gathered gunpowder is filled between the liner and the cavity of the shell case, and the pressurized perforating bullet is characterized in that: the cartridge case is of a composite structure, the pressurizing unit is arranged inside the opening end of the cartridge case, and the end covers are arranged outside the opening part of the cartridge case and the pressurizing unit and are fixedly connected. The working process is as follows: after the energy-gathered gunpowder is detonated, the metal liner forms metal jet flow, the composite fuel layer flows into the incident flow pore passage along with the metal jet flow, the pressurizing unit is pushed to the incident flow pore passage simultaneously by explosive impact, the composite fuel layer and the pressurizing unit are mixed in the pore passage to intensify explosive combustion, release a large amount of high-temperature gas, generate scouring and fracturing effects on the jet flow pore passage, eliminate pore passage compaction pollution, enlarge cracks and improve scouring and fracturing effects.
Description
Technical Field
The invention relates to oil and gas field exploitation equipment, in particular to a perforation operation device, which is a pressurized perforating bullet with a composite bullet shell.
Background
In the field of oil production, perforating and fracturing operations are important components of the well completion process. During operation, a perforating gun carries a perforating bullet to a stratum perforating section, and metal jet flow generated after the perforating bullet explodes penetrates through the stratum to form a pore channel so as to complete perforating operation. Because the perforation operation is limited by space environment, the perforation depth of the generated stratum is shallow, the pore path is narrow, and the perforation pore path needs to be enlarged and a large number of cracks are generated in the subsequent fracturing operation to improve the oil gas output. At present, perforation operation has gradually developed to adopt compound perforator to carry out perforation and compromise the mode of fracturing effect and carry out the operation, can eliminate pore compaction pollution, can improve the fracturing effect again for once perforation can obtain more ideal pore effect, has improved oil gas output, has alleviateed the operation complexity simultaneously, has reduced intensity of labour and cost. Composite perforators are typically composed of a perforator gun body, a cartridge carrier, conventional perforating charges, and a cartridge or charge (sheet). When the explosive-proof perforating gun works, the perforating bullet is detonated to form jet flow perforation, and meanwhile, a medicine box or a medicine block (sheet) between the bullet rack and the gun body is ignited. The medicine box or the medicine block (tablet) is made of mixed combustion gunpowder, high-temperature and high-pressure gas generated by combustion in the gun body of the perforator leaks out along the jet perforation and enters the incident flow pore passage to wash the wall of the pore passage, and the purposes of eliminating pollution and improving the fracturing effect are achieved. There are problems in that: 1. because a gap exists between the perforator and the petroleum casing, for example, a petroleum casing with the diameter of 140mm is generally used with a perforator with the diameter of 102mm or 127 mm for perforation, the gap can reach 10-20 mm, the diameter of a perforation pore passage is generally about 10 mm and is relatively small, a large amount of high-temperature and high-pressure gas generated by burning of gunpowder leaks out along the gap of the casing, the amount of combustion gas entering the perforation pore passage is reduced, and the scouring fracturing effect is reduced. 2. High-temperature and high-pressure gas is generated when an additional medicine box or a medicine block (piece) between the perforator and the gun body is combusted, the perforator or the gun body is easily damaged, the combustion explosive quantity is small, and the secondary scouring fracturing effect is not obvious; the burning explosive amount is large, so that the perforator or the gun body is broken and the gun is exploded, and the perforation hole of the gun body generates overlarge burrs easily, and the problems can cause that the perforator is clamped in the casing pipe after operation and cannot exit, even damage to the petroleum casing pipe is caused, and difficulty is brought to subsequent operation.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art and provides a pressurized perforating bullet with a composite type shell case.
The technical scheme for solving the technical problem is as follows: the utility model provides a pressure boost perforating bullet with combined type shell case, it includes shell case, shaped charge cover and energy-collecting powder, the shell case embeds there is the shaped charge cover, packs in the appearance chamber that shell case and shaped charge cover constitute and gathers energy-collecting powder, characterized by: the cartridge case is composed of a metal shell and a composite carbon fiber layer on the inner wall of the metal shell, the pressurizing unit is arranged inside the open end of the cartridge case, and the open end of the cartridge case is fixedly connected with the end cover.
And the top of the cartridge case is provided with a detonation transfer hole communicated with the containing cavity of the cartridge case.
And a composite fuel layer is arranged on the outer wall of the shaped charge liner, and the total mass of the composite fuel layer is 20-30% of the mass of the pressurizing unit.
The composite fuel layer is a mixed material consisting of nano aluminum powder, high-purity aluminum powder and potassium perchlorate, and the mass percent of each component is as follows: 10-20% of nano aluminum powder, 60-80% of high-purity aluminum powder and 10-20% of potassium perchlorate, wherein the sum of the mass percentages of the three components is 100%.
The pressurizing unit is a circular ring body, and the axis of an inner hole of the pressurizing unit is coaxial with the axis of the liner.
The diameter of the inner hole of the pressurizing unit and the diameter of the opening of the containing cavity of the cartridge case have the following relationship:
d=0.5D～0.6D （1）
in the formula: d, the diameter of an inner hole of the pressurizing unit; d, the diameter of the opening of the containing cavity of the cartridge case.
And a concave arc surface is arranged on one surface of the pressurizing unit facing the liner.
The pressurizing unit is made of a composite material consisting of aluminum powder, copper oxide, manganese dioxide, potassium perchlorate, combustion powder and an adhesive.
The pressurizing unit comprises the following components in percentage by mass: 10-20% of aluminum powder, 20-40% of copper oxide, 10-20% of manganese dioxide, 10-20% of potassium perchlorate, 10-20% of combustion powder and 2% of adhesive, wherein the sum of the mass percentages of the components is 100%.
The center of the end cover is provided with a through hole, the periphery of the end cover is provided with a clamping jaw, the diameter of the through hole formed in the center of the end cover is the same as the diameter of an inner hole of the pressurizing unit, and the axis of the through hole is coaxial.
The end cover is made of high-temperature-resistant plastic, and a waterproof sticker is arranged at the central through hole of the end cover, so that a closed space is formed in the cartridge case, and the interior material is prevented from being polluted by damp.
The oral area peripheral surface of shell case sets up the draw-in groove, and the jack catch card that the end cover periphery set up is in the draw-in groove that shell case oral area peripheral surface set up to protect the pressure boost unit, and prevent that it from droing.
The shaped charge liner is a conical body formed by pressing metal powder.
The energy-gathering gunpowder is a simple substance or mixed explosive of RDX, HMX, HNS and PYX.
The working process of the invention is as follows: after energy-gathering gunpowder is detonated, a metal shaped charge cover is crushed under the condition of high temperature and high pressure generated by detonation waves to form metal jet flow, a composite fuel layer flows into an incident flow pore passage along with the metal jet flow, a pressurizing unit is simultaneously pushed into the incident flow pore passage by explosion impact, the composite fuel layer made of a mixed material consisting of nano aluminum powder, high-purity aluminum powder and potassium perchlorate is mixed with the pressurizing unit consisting of aluminum powder, copper oxide, manganese dioxide, potassium perchlorate, combustion gunpowder and an adhesive in the pore passage to intensify explosion combustion, release a large amount of high-temperature gas, generate scouring and fracturing effects on the jet flow pore passage, eliminate pore passage compaction pollution, enlarge cracks and improve the scouring and fracturing effects.
The invention has the beneficial effects that:
1. the perforating bullet of the invention is normally detonated by energy-gathered gunpowder to form a metal jet perforation, after the metal jet forms a pore passage, an attached composite fuel layer and a pressurizing unit enter the pore passage along with the jet, and the composite fuel layer and the pressurizing unit are mixed in the pore passage to carry out oxidation-reduction reaction to generate violent explosion combustion, secondarily release a large amount of high-temperature and high-pressure gas and generate scouring fracturing effect on the jet pore passage. The pressure borne by the gun body of the perforator is reduced, the subsequent scouring fracturing effect in the hole is improved, and the quantity of the combustion gunpowder carried by the perforator is reduced, and the quantity of the composite fuel entering the metal jet hole is improved. The components of the composite fuel layer and the pressurizing unit can be reasonably proportioned, so that the reaction is sufficient, no residue is left, secondary pollution is not caused to a jet hole channel, and the self-cleaning effect is achieved;
compared with the prior art, the pressurizing unit of the perforating bullet has the closest distance with the energy-gathered gunpowder, the dosage of the combustion gunpowder entering the metal jet pore passage can be increased, the aluminum powder, the copper oxide and the combustion gunpowder contained in the pressurizing unit entering the pore passage are violently combusted and exploded under the high temperature and high pressure generated at the moment of detonation, a large amount of high-temperature gas is released, the pore passage is further scoured, fractured and expanded, the combustion action time is far longer than the detonation jet flow time, and the oxide in the stratum can also participate in the reaction, so that the effects of eliminating compaction pollution and expanding cracks can be improved;
3 the composite fuel layer and the pressurizing unit of the perforating bullet are separately arranged, the composite fuel layer and the pressurizing unit do not have obvious reaction at the initiation moment of the energy-gathered gunpowder, the perforating bullet almost has no interference to detonation waves, and the stable formation of metal jet flow is not influenced, so that the stable and reliable perforating performance of the jet flow is ensured;
4 during the test of the perforating bullet, the combustion gunpowder amount of the cartridge type composite perforating bullet in the prior art is used in the test of the perforating bullet, the phenomenon of explosion of the perforator occurs, and the pressurizing unit of the perforating bullet is made of a composite material consisting of aluminum powder, copper oxide, combustion gunpowder and a bonding agent, so that compared with the cartridge type composite perforating bullet in the prior art, the use amount of the combustion gunpowder is reduced, the cost can be reduced, the safety is also improved, and the fracturing and reaming effects are still better than those of the cartridge type composite perforating bullet in the prior art;
5 the cartridge case of the perforating bullet is designed into a composite structure of outer metal and inner carbon fiber materials, and the carbon fiber layer compounded on the inner wall of the metal cartridge case can strengthen the toughness of the cartridge case and improve the compressive impact resistance of the cartridge case. During detonation, the carbon fiber layer of the cartridge case can absorb a large amount of diffusion energy, so that the explosive impact on the gun body of the perforator and the damage of broken pieces of the cartridge case are reduced, and the effects of protecting the gun body and an oil casing and reducing perforation burrs are achieved;
the perforating bullet improves the consistency of processing and assembling processes, is efficient and convenient to produce, install and operate, and has good safety. Can reduce the labor complexity and the production cost.
The device has the advantages of simple structure, low cost, good manufacturability, high safety, and high efficiency and convenience in production, installation and operation.
Drawings
FIG. 1 is a schematic diagram of a pressurized charge having a composite casing according to the present invention.
In the figure: the composite fuel layer comprises a metal shell 1, a carbon fiber layer 2, energy-gathering powder 3, a pressurizing unit 4, a clamping jaw 5, an end cover 6, a shaped charge cover 7, a composite fuel layer 8 and a detonation transfer hole 9.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Referring to fig. 1, in embodiment 1, the pressurized perforating bullet with the composite cartridge case in this embodiment includes a cartridge case, a shaped charge liner 7, energy-gathering powder 3, a pressurizing unit 4, and an end cover 6, where the shaped charge liner 7 is disposed in the cartridge case, the energy-gathering powder 3 is filled in a cavity formed by the cartridge case and the shaped charge liner 7, a detonation propagation hole 9 is disposed at the top of the cartridge case and communicated with the cavity of the cartridge case, the cartridge case is composed of a metal casing 1 and a composite carbon fiber layer 2 on the inner wall of the metal casing 1, a composite fuel layer 8 is disposed on the outer wall of the shaped charge liner 7, the pressurizing unit 4 is disposed inside an open end of the cartridge case, and the open end of the cartridge case is fixedly connected with the end cover 6.
The composite fuel layer 8 is a mixed material consisting of nano aluminum powder, high-purity aluminum powder and potassium perchlorate.
The composite fuel layer 8 comprises the following components in percentage by mass: 10-20% of nano aluminum powder, 60-80% of high-purity aluminum powder and 10-20% of potassium perchlorate, wherein the sum of the mass percentages of the components is 100%.
The total mass of the composite fuel layer 8 is 20-30% of the mass of the pressurizing unit 4.
The pressurizing unit 4 is a circular ring body, and the axis of an inner hole of the pressurizing unit 4 is coaxial with the axis of the liner 7.
The diameter of the inner hole of the pressurizing unit 4 and the diameter of the opening of the containing cavity of the cartridge case have the following relationship:
d=0.5D （1）
in the formula: d is the diameter of the inner hole of the pressurizing unit 4; d, the diameter of the opening of the containing cavity of the cartridge case.
And a concave arc surface is arranged on one surface of the pressurizing unit 4 facing the liner 7.
The pressurizing unit 4 is made of a composite material consisting of aluminum powder, copper oxide, manganese dioxide, potassium perchlorate, combustion powder and an adhesive.
The aluminum powder, copper oxide, manganese dioxide, potassium perchlorate, combustion powder and adhesive of the pressurizing unit 4 are as follows by mass percent: 10-20% of aluminum powder, 20-40% of copper oxide, 10-20% of manganese dioxide, 10-20% of potassium perchlorate, 10-20% of combustion powder and 2% of adhesive, wherein the sum of the mass percentages of the components is 100%.
The center of end cover 6 is equipped with the through-hole, the periphery is equipped with jack catch 5, and the through-hole diameter that the end cover 6 center was equipped with is the same with the hole diameter of pressure unit 4, and its axis is coaxial.
The end cover 6 is made of high-temperature-resistant plastic, and a round waterproof sticker is arranged on the outer side of the central through hole of the end cover so as to form a closed space in the cartridge case and prevent internal materials from being polluted by damp.
The oral area peripheral surface of shell case sets up the draw-in groove, 5 blocks of jack catch that 6 peripheries of end cover set up are in the draw-in groove that shell case oral area peripheral surface set up to protect pressure boost unit 4, and prevent that it from droing.
The liner 7 is a cone formed by pressing metal powder.
The energy-gathered gunpowder 3 is mixed explosive.
The present embodiment is manufactured using prior art techniques.
The using process of the embodiment is as follows: after the energy-gathering powder 3 of the embodiment is detonated, the metal shaped charge cover 7 is crushed under the condition of high temperature and high pressure generated by detonation waves to form metal jet flow, the composite fuel layer 8 enters an incident flow pore passage along with the metal jet flow, the pressurizing unit 4 is simultaneously pushed to the incident flow pore passage by explosion impact, the composite fuel layer 8 made of a mixed material consisting of nano aluminum powder, high-purity aluminum powder and potassium perchlorate is mixed with the pressurizing unit 4 consisting of aluminum powder, copper oxide, manganese dioxide, potassium perchlorate, combustion powder and an adhesive in the pore passage to intensify explosion combustion, a large amount of high-temperature gas is released, a scouring and fracturing effect is generated on the jet flow pore passage, pore passage compaction pollution is eliminated, cracks are enlarged, and the scouring and fracturing effect is improved.
The present invention is not limited to the present embodiment, and it is possible for those skilled in the art to easily reproduce and modify the present invention without inventive efforts within the scope of the present invention claimed.
Claims (10)
1. The utility model provides a pressure boost perforating bullet with combined type shell case, it includes shell case, shaped charge cover and energy-collecting powder, the shell case embeds there is the shaped charge cover, packs in the appearance chamber that shell case and shaped charge cover constitute and gathers energy-collecting powder, characterized by: the cartridge case is composed of a metal shell and a composite carbon fiber layer on the inner wall of the metal shell, the pressurizing unit is arranged inside the open end of the cartridge case, and the open end of the cartridge case is fixedly connected with the end cover.
2. The pressurized perforating charge with composite casing of claim 1, wherein: and a composite fuel layer is arranged on the outer wall of the shaped charge liner, and the total mass of the composite fuel layer is 20-30% of the mass of the pressurizing unit.
3. The pressurized perforating charge with composite casing of claim 2, wherein: the composite fuel layer is a mixed material consisting of nano aluminum powder, high-purity aluminum powder and potassium perchlorate, and the mass percent of each component is as follows: 10-20% of nano aluminum powder, 60-80% of high-purity aluminum powder and 10-20% of potassium perchlorate, wherein the sum of the mass percentages of the three components is 100%.
4. The pressurized perforating charge with composite casing of claim 1, wherein: the pressurizing unit is a circular ring body, and the axis of an inner hole of the pressurizing unit is coaxial with the axis of the liner.
5. The supercharged perforating charge with composite casing of claim 1 or 4, characterized in that: the diameter of the inner hole of the pressurizing unit and the diameter of the opening of the containing cavity of the cartridge case have the following relationship:
d=0.5D～0.6D （1）
in the formula: d, the diameter of an inner hole of the pressurizing unit; d, the diameter of the opening of the containing cavity of the cartridge case.
6. The pressurized perforating charge with composite casing of claim 1, wherein: and a concave arc surface is arranged on one surface of the pressurizing unit facing the liner.
7. The pressurized perforating charge with composite casing of claim 1, wherein: the pressurizing unit is made of a composite material consisting of aluminum powder, copper oxide, combustion powder and an adhesive.
8. The pressurized perforating charge with composite casing of claim 1, wherein: the center of the end cover is provided with a through hole, the periphery of the end cover is provided with a clamping jaw, the diameter of the through hole formed in the center of the end cover is the same as the diameter of an inner hole of the pressurizing unit, and the axis of the through hole is coaxial.
9. The pressurized perforating charge with composite casing of claim 1, wherein: the end cover is made of high-temperature-resistant plastic, and a waterproof sticker is arranged at the central through hole of the end cover, so that a closed space is formed in the cartridge case, and the interior material is prevented from being polluted by damp.
10. The pressurized perforating charge with composite casing of claim 1, wherein: the oral area peripheral surface of shell case sets up the draw-in groove, and the jack catch card that the end cover periphery set up is in the draw-in groove that shell case oral area peripheral surface set up to protect the pressure boost unit, and prevent that it from droing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010672163.XA CN111734365A (en) | 2020-07-14 | 2020-07-14 | Pressurized perforating bullet with combined type cartridge case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010672163.XA CN111734365A (en) | 2020-07-14 | 2020-07-14 | Pressurized perforating bullet with combined type cartridge case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111734365A true CN111734365A (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010672163.XA Pending CN111734365A (en) | 2020-07-14 | 2020-07-14 | Pressurized perforating bullet with combined type cartridge case |
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| CN (1) | CN111734365A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402347A (en) * | 2021-06-09 | 2021-09-17 | 西安物华巨能爆破器材有限责任公司 | Combustion agent, ultrahigh-temperature jet flow synergist for increasing petroleum yield by adopting combustion agent and preparation method of ultrahigh-temperature jet flow synergist |
-
2020
- 2020-07-14 CN CN202010672163.XA patent/CN111734365A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402347A (en) * | 2021-06-09 | 2021-09-17 | 西安物华巨能爆破器材有限责任公司 | Combustion agent, ultrahigh-temperature jet flow synergist for increasing petroleum yield by adopting combustion agent and preparation method of ultrahigh-temperature jet flow synergist |
| CN113402347B (en) * | 2021-06-09 | 2022-09-09 | 西安物华巨能爆破器材有限责任公司 | Combustion agent, ultrahigh-temperature jet flow synergist for increasing petroleum yield by adopting combustion agent and preparation method of ultrahigh-temperature jet flow synergist |
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