CN218971164U - Self-cleaning perforating bullet targeting test device - Google Patents
Self-cleaning perforating bullet targeting test device Download PDFInfo
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- CN218971164U CN218971164U CN202222915110.3U CN202222915110U CN218971164U CN 218971164 U CN218971164 U CN 218971164U CN 202222915110 U CN202222915110 U CN 202222915110U CN 218971164 U CN218971164 U CN 218971164U
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Abstract
The utility model particularly relates to a self-cleaning perforating bullet targeting test device which is characterized in that a lower screw cap is arranged at the lower end of a screw barrel in a threaded manner, the lower end of a centralizing ring is arranged at the upper end face of the lower screw cap, a sandstone target is filled between the centralizing ring and a second locating body, the first locating body and the second locating body are of cylindrical structures with open upper ends and closed lower ends, inner cavities of the first locating body and the second locating body are of reducing structures with large upper ends and small lower ends, protruding parts of the first locating body are arranged in a large round cavity of the second locating body through threads, an upper screw cap is arranged at the upper end of the screw barrel in a threaded manner, a perforating bullet installation cavity is arranged between the upper screw cap and the first locating body, and a detonating cord hole penetrating the upper screw cap is arranged in the middle of the upper screw cap. The self-cleaning perforating bullet targeting test device has the advantages of reasonable structure, convenient assembly operation process and good safety, can improve the working efficiency of the self-cleaning perforating bullet targeting test, and can finish the verification of the self-cleaning perforating bullet targeting test.
Description
Technical Field
The utility model belongs to the technical field of oil and gas well perforation, and particularly relates to a self-cleaning perforating bullet targeting test device.
Background
Along with the oil field exploration and development, the types of oil and gas layers are complex, and the medium and low permeability oil layers and the tight sandstone oil layers occupy a larger proportion in the oil and gas reserves; in addition, each large oil field block in China is a normal pressure reservoir, and formation pressure is reduced to different degrees due to unbalanced injection and production, and reservoir pressure deficiency is serious; the conventional shaped perforation jet penetration process forms pore channels to crush and compact surrounding rocks, so that compaction damage zones are generated, the permeability is reduced, and part of rock fragments and metal powder are remained in the pore channels, so that the flow resistance of formation fluid to the pores is increased, the productivity of an oil-gas well is reduced, and the problems of improving the yield, the recovery ratio, the permeability and the like of the oil-gas well are needed to be solved.
In order to better realize smooth, clean and clean perforation tunnels, free of rocks and powder scraps and improve the flow efficiency of the perforation, a self-cleaning perforating bullet needs to be researched, the aims of generating high-pressure air flow to wash the tunnels in a very short time after the tunnels are formed, cleaning perforation compacting belts, effectively reflecting the rock scraps and jet residues in the tunnels to ensure that the tunnels are kept highly clean, and a targeting test device of the self-cleaning perforating bullet needs to be researched and developed for researching the self-cleaning perforating bullet.
Disclosure of Invention
The utility model aims to provide a self-cleaning perforating bullet targeting test device, which is characterized in that all parts are connected by threads, so that the self-cleaning perforating bullet targeting test device is convenient to install, maintain and implement, and can ensure that pressure is not released after detonation of the self-cleaning perforating bullet, and complete the targeting test of the self-cleaning perforating bullet.
The utility model solves the technical problems by adopting the scheme that:
the self-cleaning perforating bullet targeting test device is characterized by comprising a vertical hollow screw barrel, wherein a lower screw cap, a righting ring, a second positioning body, a first positioning body and an upper screw cap are sequentially arranged in the screw barrel from bottom to top, the lower screw cap is installed at the lower end of the screw barrel in a threaded manner, the lower end of the righting ring is placed on the upper end face of the lower screw cap, the outer diameter of the righting ring is matched with the inner diameter of the screw barrel, a sandstone target is filled between the righting ring and the second positioning body, the first positioning body and the second positioning body are of cylindrical structures with an opening at the upper end and a closed lower end, the outer diameters of the first positioning body and the second positioning body are matched with the inner diameter of the screw barrel, the inner cavities of the first positioning body and the second positioning body are of reducing structures with a big round cavity at the upper part and a small round cavity at the lower part, the bottom of the first positioning body is provided with a downward protruding part, the protruding part of the first positioning body is installed in the big round cavity of the second positioning body in a threaded manner, the upper screw cap is installed at the upper end of the screw barrel, a sandstone target is filled between the upper screw cap and the first positioning body is provided with a blasting hole penetrating through the upper screw cap.
The first positioning body and the second positioning body are both closed at one end face, the other end face is a stepped circular cavity with different diameters (the upper part is big and the lower part is small), the inner diameter of the large circular cavity of the first positioning body is consistent with the diameter of the self-cleaning perforating bullet, positioning and installation of the self-cleaning perforating bullet in a targeting test are facilitated, the inner diameter of the small circular cavity of the first positioning body is slightly smaller than the inner diameter of the self-cleaning perforating bullet and larger than the inner diameter of a shaped charge liner, jet flow after detonation of the self-cleaning perforating bullet is not interfered, penetrating depth of a target of the self-cleaning perforating bullet is guaranteed, safety is good, and detonation reliability is high.
The detonating cord hole in the middle of the upper nut is a small-diameter through hole, and the diameter of the detonating cord hole is slightly larger than that of the detonating cord, so that the detonating cord can extend out of the testing device to be connected with an external detonating circuit.
The screw barrel, the upper screw cap and the lower screw cap are connected through threads, and the first positioning body and the second positioning body are convenient to install, maintain and implement, so that the working efficiency can be effectively improved.
Further, the upper nut insertion screw barrel part comprises a front threaded section and a rear smooth section, wherein at least one circle of sealing groove is arranged on the smooth section, and a sealing ring is arranged in the sealing groove.
The number of the sealing grooves is preferably 2-3, namely the number of the sealing rings is preferably 2-3, so that the pressure is not released after the self-cleaning perforating bullet is detonated, and the targeting test of the self-cleaning perforating bullet is completed.
The utility model relates to a target shooting testing device based on self-cleaning perforating bullet research matching design, which has the advantages that: the self-cleaning perforating bullet targeting test device has the advantages of reasonable structure, convenience in assembly operation process and good safety, can improve the working efficiency of the self-cleaning perforating bullet targeting test, and can finish the verification of the self-cleaning perforating bullet targeting test.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a first positioning body according to the present utility model;
FIG. 3 is a schematic view of a second positioning body according to the present utility model;
fig. 4 is a schematic structural view of the upper nut of the present utility model.
As shown in the figure: 1. a lower nut; 2. centralizing the ring; 3. a sandstone target; 4. a second positioning body; 5. a first positioning body; 6. self-cleaning perforating charges; 7. detonating cord; 8. a screw cylinder; 9. a seal ring; 10. a nut is arranged; 11. a protruding portion; 12. detonating cord holes; 13. and (5) sealing the groove.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model. It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
As shown in fig. 1-4: the lower nut 1 is arranged at the lower end of a vertical hollow screw cylinder 8 in a threaded manner, the lower end of a righting ring 2 is arranged at the upper end face of the lower nut 1, the outer diameter of the righting ring is matched with the inner diameter of the screw cylinder 8, sandstone targets 3 are filled between the righting ring 2 and a second locating body 4, the first locating body 5 and the second locating body 4 are of cylindrical structures with open upper ends and closed lower ends, the outer diameters of the first locating body 5 and the second locating body 4 are matched with the inner diameter of the screw cylinder 8, the inner cavities of the first locating body 5 and the second locating body 4 are of reducing structures with large upper parts and small lower parts, the reducing structures comprise a large circular cavity at the upper part and a small circular cavity at the lower part, the bottom of the small circular cavity at the lower part, the protruding part 11 of the first locating body 5 is arranged in the large circular cavity of the second locating body 4 through threads, the upper nut 10 is arranged at the upper end of the screw cylinder, the upper nut 10 is arranged between the upper nut 10 and the first locating body 5 in a bomb installation cavity, the upper nut 10 is inserted into the screw cylinder 8, the smooth section of the upper nut 8 comprises a front threaded section and a rear part, two sealing grooves 13 are arranged on the smooth section, and sealing grooves 12 are arranged in the middle parts of the sealing grooves 13 are arranged, and sealing grooves 12 are arranged in the sealing grooves 12.
The utility model is assembled by the following steps:
1) Screwing the first positioning body 5 into the second positioning body 4, and then assembling the self-cleaning perforating bullet 6 into a large round cavity of the first positioning body 5 to form a positioning body assembly;
2) Then screwing the lower screw cap 1 into the screw cylinder 8, arranging the centralizing ring 2 in the screw cylinder 8, and assembling the sandstone target 3 into the centralizing ring 2;
3) Then the positioning body assembly is arranged on the upper end face of the sandstone target 3, one end of the detonating cord 7 is fixed in a groove of the self-cleaning perforating bullet 6, and the other end of the detonating cord is extended out through the detonating cord hole 12 of the upper screw cap 10 to be connected with an external detonating circuit;
4) Finally, the upper screw cap 10 is screwed into the screw cylinder 8 to complete the assembly.
When the self-cleaning perforating bullet 6 is used, the self-cleaning perforating bullet 6 extending out of the detonating cord 7 is communicated with the anode and the cathode of external emission through a lead, and thus the targeting test of the self-cleaning perforating bullet 6 can be realized.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (2)
1. The utility model provides a self-cleaning perforating bullet target testing arrangement, its characterized in that includes a vertical cavity spiral shell section of thick bamboo, is equipped with down nut, righting ring, second location body, first location body and last nut in proper order from bottom to top in the spiral shell section of thick bamboo, lower nut screw thread is installed in spiral shell section of thick bamboo lower extreme, righting ring lower extreme is placed in lower nut up end, its external diameter matches with the internal diameter of spiral shell section of thick bamboo, it has sandstone target to fill between righting ring and the second location body, first location body and second location body are upper end opening, lower extreme confined drum structure, both external diameters match with the internal diameter of spiral shell section of thick bamboo, the inside cavity of first location body and second location body is big circular cavity and the little circular cavity of lower part of big circular cavity of upper portion, the bottom of first location body is equipped with downward bulge, the bulge of first location body is installed in spiral shell section of thick bamboo upper end through the screw thread, is equipped with the blasting cap hole of perforating bullet on the top nut between the first location body.
2. The self-cleaning perforating bullet targeting test device of claim 1, wherein the upper nut inserting screw cylinder part comprises a front threaded section and a rear smooth section, at least one circle of sealing groove is arranged on the smooth section, and a sealing ring is arranged in the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222915110.3U CN218971164U (en) | 2022-10-31 | 2022-10-31 | Self-cleaning perforating bullet targeting test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222915110.3U CN218971164U (en) | 2022-10-31 | 2022-10-31 | Self-cleaning perforating bullet targeting test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218971164U true CN218971164U (en) | 2023-05-05 |
Family
ID=86155157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222915110.3U Active CN218971164U (en) | 2022-10-31 | 2022-10-31 | Self-cleaning perforating bullet targeting test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218971164U (en) |
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2022
- 2022-10-31 CN CN202222915110.3U patent/CN218971164U/en active Active
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