CN218759834U - Bound perforating bullet fragment sleeve - Google Patents
Bound perforating bullet fragment sleeve Download PDFInfo
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- CN218759834U CN218759834U CN202220067575.5U CN202220067575U CN218759834U CN 218759834 U CN218759834 U CN 218759834U CN 202220067575 U CN202220067575 U CN 202220067575U CN 218759834 U CN218759834 U CN 218759834U
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- sleeve
- charge
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- bound
- perforating
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- 239000012634 fragment Substances 0.000 title claims description 22
- 238000013467 fragmentation Methods 0.000 claims abstract description 10
- 238000006062 fragmentation reaction Methods 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 239000004952 Polyamide Substances 0.000 claims abstract description 5
- 239000004743 Polypropylene Substances 0.000 claims abstract description 5
- 229920002647 polyamide Polymers 0.000 claims abstract description 5
- 239000004417 polycarbonate Substances 0.000 claims abstract description 5
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 5
- -1 polypropylene Polymers 0.000 claims abstract description 5
- 229920001155 polypropylene Polymers 0.000 claims abstract description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 5
- 238000005474 detonation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 9
- 239000013335 mesoporous material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011345 viscous material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The utility model relates to a constraint perforating bullet fragmentation bullet sleeve, which is one of polypropylene, polycarbonate, polyamide, polyvinyl chloride and modified plastics thereof and is made of micropore or mesoporous materials. And the assembly sleeve is sleeved outside the perforating bullet shell. The utility model discloses can solve the oil gas well underground junk and eliminate the interference between perforating bullet. The utility model discloses use raw and other materials all to belong to temperature resistant material, temperature resistant at oil gas well reaches 250 ℃/170h, can match the various model perforator of 73mm ~ 178mm, satisfies the user demand of most high temperature oil gas well and ultra-high temperature oil gas well.
Description
Technical Field
The utility model belongs to oil gas well perforation completion and have body of a gun perforation equipment field, in particular to constraint perforating bullet fragmentation shell cover.
Background
Oil and gas well perforation technology is a common casing completion mode in oil fields at present. During construction, perforating bullets are installed in perforating guns, and the perforator is conveyed to a target layer position through oil pipes or cables to carry out perforating operation. After the operation is finished, the perforator is lifted out of the wellhead. During this process, fragments from the detonation of the charges in conventional perforators and from the carrier can fall down the perforation in the perforating gun or stick to the casing wall, which can cause gun jamming when the gun string is long. Meanwhile, the inner diameter of the casing pipe is reduced, and the tool cannot pass through the casing pipe during subsequent operation, so that the casing pipe is blocked. Therefore, the oil field puts higher technical requirements on the design of the perforator, and the underground non-falling object index of the whole perforation process is formed.
The patent CN201220442437.7 discloses a large fragment deep penetration perforating bullet, which is characterized in that 3-8 prefabricated grooves are processed in an inner cavity of a shell, so that after the perforating bullet explodes, the shell is broken along the prefabricated grooves by detonation waves to form large fragments which are left in a perforating gun, and the pollution of shell fragments to a shaft and a perforating channel is reduced. However, in practice, although the method has certain effect, the fragments still fall into the well, and the purpose of no fragments cannot be achieved.
Patent CN201821444263.1 discloses a chip-free perforator, and the technology is that a filling material is filled in a perforating bullet shell, and a main explosive is filled between the filling material and a liner. The filling material can be nylon, phenolic resin, polyphenylene sulfide and other temperature-resistant plastics. The viscous substance is formed under the high temperature and high pressure of explosive explosion, so that small particle fragments generated by the explosive frame and the shell are adhered together after explosion, and after cooling, large fragment groups are formed and left in the perforating gun. Although the technology disclosed by the above can solve the problem of downhole falling objects during perforation to a certain extent, the filling material is in the cartridge case, the space is limited, the filling amount is limited, the filling material is easy to decompose and gasify at high temperature, the manufacturing process is complex, the selection types of the disclosed filling material are few, and the requirements of high-temperature and ultrahigh-temperature material selection cannot be met.
Disclosure of Invention
The utility model provides a technical problem be: in order to solve various problems and defects in the prior art, the invention relates to a bullet sleeve for binding a perforating bullet fragment, which is generally one of polypropylene, polycarbonate, polyamide, polyvinyl chloride and modified plastics thereof and is a microporous or mesoporous material. The perforating bullet is sleeved outside the perforating bullet shell during assembly, the inner space of the perforating gun can be fully utilized, the structure is simple, the raw material source is rich, the production and manufacturing process is safe, and the environment is not polluted. The utility model discloses solve the underground junk and eliminate the interference and play important role between perforating bullet to the oil gas well.
The technical scheme of the utility model is that: the utility model provides a constraint bullet shell for perforation bullet fragmentation, the shell cover is established outside the perforating bullet shell, and the internal face is laminated with the shell case outer wall department of putting.
The utility model discloses further technical scheme is: the elastic sleeve is a first elastic sleeve, two ends of the first elastic sleeve are opened, the outer wall of the first elastic sleeve is circumferentially opened with a ring groove, and the lower end opening part of the first elastic sleeve is chamfered; the inner wall is an inverted frustum.
The utility model discloses further technical scheme is: the first elastic sleeve has a cone angle alpha of a circular table 1 Is 1-7 degrees.
The utility model discloses further technical scheme is: the excircle diameter D of the first elastic sleeve 1 20 mm-70 mm; inner circle diameter D 2 Is 18 mm-60 mm.
The utility model discloses further technical scheme is: the bullet cover is the second bullet cover, and both ends opening, the outer wall is whole to be the conical surface, and the inner chamber is the toper, and big footpath end bottom is equipped with the downward arch of axial.
The utility model discloses further technical scheme is: the diameter D of the excircle of the large-diameter end of the second elastic sleeve 3 20 mm-70 mm, inner circle diameter D 4 18 mm-60 mm, and an external cone angle alpha 2 And the taper angle alpha of the inner cavity circular truncated cone 3 Is 50-120 degrees.
The utility model discloses further technical scheme is: the elastic sleeve is made of one of polypropylene, polycarbonate, polyamide, polyvinyl chloride and modified plastics thereof.
The utility model discloses further technical scheme is: the charge sleeves are independently or combined and sleeved outside the perforating charge shell, wherein the first charge sleeve is sleeved on the charge head of the perforating charge, the second charge sleeve is sleeved on the charge tail of the perforating charge, and the inner wall of the second charge sleeve is tightly attached to the charge wall of the perforating charge.
The utility model discloses further technical scheme is: when the second charge sleeve is sleeved at the tail of the perforating charge, the bulge is positioned on the step surface of the perforating charge for matching and limiting.
The utility model discloses further technical scheme is: after the first bullet sleeve and the second bullet sleeve are exploded in the inner perforating bullet, the bullet sleeve torn outside the shell is softened to form viscous substances under the action of high temperature and high pressure, the shell fragments and the shell frame fragments are bonded together, and then the shell fragments of the perforating bullet are wound and bound.
Effects of the invention
The technical effects of the utility model reside in that: the technical effects of the utility model specifically do:
(1) The utility model discloses the bullet cover is outside at the perforating bullet shell, and the space is bigger, and structural design presents the variety, has increased the volume and the thickness of bullet cover, and behind the perforating bullet explosion, under the effect of high temperature high pressure, the outside tearing bullet cover of casing easily forms more stickies after softening, bonds shell case fragment and bullet frame piece together, forms viscidity aggregate structure, and the bonding effect is better. The effect of no falling objects under the well can be realized.
(2) The utility model discloses choose for use 1nm ~ 5 nm's micropore or mesoporous material, not only can improve viscidity reunion effect, interference between the elimination perforating bullet that moreover can be better, especially to the dense perforator of high hole, improve the perforating level of perforating bullet.
(3) The utility model discloses the temperature resistant is the highest can reach 250 ℃/170h, after high temperature test, the utility model discloses the outward appearance does not have any deformation, and assembles perforating bullet target practice test, and performance index also does not change. The utility model discloses can match the various model perforators of 73mm ~ 178mm, satisfy the user demand in most high temperature oil gas well and ultra-high temperature oil gas well.
Drawings
FIG. 1 is a schematic view of a first elastic sleeve structure
FIG. 2 is a schematic view of the assembly of the first charge jacket and the perforating charge
FIG. 3 is a schematic view of the second elastic sleeve
FIG. 4 is a schematic view of the second charge jacket assembled with a perforating charge
FIG. 5 is a schematic view of the assembly of the first and second charge jacket assemblies with the perforating charge
Description of reference numerals: 1-a first shot sleeve; 2-a second shot sleeve; 3-perforating charge.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are used in the orientations and positional relationships indicated in the drawings, which are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
A bullet sleeve for binding fragments of a perforating bullet comprises a first bullet sleeve 1 and a second bullet sleeve 2 which are made of high polymer materials. Typically one of polypropylene, polycarbonate, polyamide, polyvinyl chloride and modified plastics thereof. Separately or in combination, outside the housing of the charge 3.
The first elastic sleeve 1 and the second elastic sleeve 2 are made of 1-5 nm micropore and mesoporous materials generally.
The first elastic sleeve 1 is a cylinder with a ring groove in the outer shape, and the lower end opening part is chamfered. The inner cavity is an inverted circular truncated cone body, and the cone angle alpha of the circular truncated cone body 1 Is 1-7 degrees. Outside diameter D 1 20mm to 70mm; inner circle diameter D 2 Is 18 mm-60 mm.
The outer shape of the second elastic sleeve 2 is a circular truncated cone and a cylinder which are connected up and down, and the inner cavity of the second elastic sleeve is a circular truncated cone and a cylinder which are connected up and down. Outside diameter D 3 20mm to 70mm; inner circle diameter D 4 Is 18 mm-60 mm. External truncated cone angle alpha 2 And the taper angle alpha of the inner cavity circular truncated cone 3 Generally 50-120 degrees.
After the first bullet sleeve 1 and the second bullet sleeve 2 explode in the inner perforating bullet, under the action of high temperature and high pressure, the bullet sleeves torn outside the shell are softened to form viscous substances, the shell fragments and the bullet rack fragments are bonded together to form a plurality of viscous aggregation structures, and the shell fragments of the perforating bullet are wound and bound.
The first charge sleeve 1 and the second charge sleeve 2 can eliminate the charge-to-charge interference generated when the perforating charge explodes.
The temperature resistance of the first elastic sleeve 1 and the second elastic sleeve 2 is up to 250 ℃/170h.
Referring to fig. 1-2, when the perforating gun is used on site, the first charge sleeve is installed outside the perforating charge from the direction of the opening of the perforating charge, and after the first charge sleeve is installed in place, the first charge sleeve is placed into a charge carrier tube of the perforating gun for fixing, and after the assembly is completed, the first charge sleeve is placed into the perforating gun and is placed into an oil-gas well for use.
Referring to fig. 3-4, when the perforating gun is used on site, the second charge sleeve is installed outside the perforating charge from the direction of the detonating cord groove of the perforating charge, and after the second charge sleeve is installed in place, the second charge sleeve is placed into a charge frame tube of the perforating gun for fixing, and after the second charge sleeve is assembled, the second charge sleeve is placed into the perforating gun and is put into an oil-gas well for use.
Referring to fig. 5, when the perforating gun is used on site, the first bullet sleeve and the second bullet sleeve are respectively installed outside the perforating bullet from the direction of the opening part of the perforating bullet and from the direction of the detonating cord groove, and after the first bullet sleeve and the second bullet sleeve are installed in place, the first bullet sleeve and the second bullet sleeve are placed into a perforating gun carrier tube for fixing, and after the assembly is completed, the first bullet sleeve and the second bullet sleeve are placed into an oil-gas well for use.
Claims (10)
1. The fragmentation bullet sleeve for the bound perforating bullet is characterized in that the bullet sleeve is sleeved outside a bullet shell of the perforating bullet, and the inner wall surface of the bullet sleeve is attached to the outer wall of the bullet shell.
2. The bound perforating charge fragment casing as claimed in claim 1, characterized in that the casing is a first casing (1), the first casing (1) is open at both ends, the outer wall is circumferentially open with a ring groove, and the lower end opening part is chamfered; the inner wall is an inverted frustum.
3. The bound charge fragmentation sleeve of claim 2, wherein the first sleeve (1) has a frustoconical angle α 1 Is 1-7 degrees.
4. The bound charge fragmentation sleeve of claim 2 wherein the first sleeve (1) has an outer diameter D 1 20 mm-70 mm; inner circle diameter D 2 Is 18 mm-60 mm.
5. The bound charge fragmentation sleeve of claim 2 wherein the sleeve is a second sleeve (2) open at both ends, the outer wall is generally conical, the inner cavity is conical, and the bottom of the larger diameter end is provided with an axially downward projection.
6. The bound charge fragmentation sleeve of claim 5, wherein said second sleeve (2) has a major diameter end outside diameter D 3 20 mm-70 mm, and the diameter D of the inner circle 4 18 mm-60 mm, and an external cone angle alpha 2 And the taper angle alpha of the inner cavity circular truncated cone 3 Is 50-120 degrees.
7. The bound charge fragment case of claim 1 wherein the case is made from one of polypropylene, polycarbonate, polyamide, polyvinyl chloride, and modified plastics thereof.
8. The bound charge fragmentation sleeve of claim 1 or 2 or 3 or 4 or 5 or 6, wherein the sleeve is separately or jointly sleeved outside the casing of the charge (3), wherein the first sleeve (1) is sleeved on the head of the charge (3), the second sleeve (2) is sleeved on the tail of the charge (3), and the inner wall is tightly attached to the wall of the charge.
9. The bound charge fragmentation sleeve of claim 5, wherein the projections are positioned to engage against the stepped surface of the charge (3) to limit the distance between the projections when the second sleeve (2) is fitted over the tail of the charge (3).
10. The bound charge rupture sleeve as claimed in claim 5, wherein the first (1) and second (2) sleeves soften under high pressure and temperature conditions after detonation of the inner charge to form a viscous mass which bonds the rupture and carrier fragments together and subsequently entangles and binds the rupture of the casing of the charge (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220067575.5U CN218759834U (en) | 2022-01-12 | 2022-01-12 | Bound perforating bullet fragment sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220067575.5U CN218759834U (en) | 2022-01-12 | 2022-01-12 | Bound perforating bullet fragment sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218759834U true CN218759834U (en) | 2023-03-28 |
Family
ID=85644043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220067575.5U Active CN218759834U (en) | 2022-01-12 | 2022-01-12 | Bound perforating bullet fragment sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218759834U (en) |
-
2022
- 2022-01-12 CN CN202220067575.5U patent/CN218759834U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Bihong Inventor after: Meng Chunxue Inventor after: Zhao Wenjie Inventor after: Lin Liming Inventor after: Yang Jiale Inventor after: Zhang Yikui Inventor after: Sheng Yanqiang Inventor after: Lu Kun Inventor after: Li Shangjie Inventor after: Wei Ling Inventor after: Wang Xi Inventor after: Wang Hao Inventor after: Yang Xizhi Inventor after: Cui Shujuan Inventor before: Li Bihong Inventor before: Cui Shujuan Inventor before: Meng Chunxue Inventor before: Zhao Wenjie Inventor before: Lin Liming Inventor before: Yang Jiale Inventor before: Zhang Yikui Inventor before: Sheng Yanqiang Inventor before: Long Haifeng Inventor before: Lu Kun Inventor before: Li Shangjie Inventor before: Wei Ling Inventor before: Wang Xi Inventor before: Wang Hao Inventor before: Yang Xizhi |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240117 Address after: NO.213, Zhuque street, Xi'an, Shaanxi 710061 Patentee after: Wuhua Energy Technology Co.,Ltd. Address before: NO.213, Zhuque street, Xi'an, Shaanxi 710061 Patentee before: Wuhua Energy Technology Co.,Ltd. Patentee before: CNOOC (China) Limited,Tianjin Branch |
|
| TR01 | Transfer of patent right |