CN220955547U - Fracturing head of fracturing engineering - Google Patents
Fracturing head of fracturing engineering Download PDFInfo
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- CN220955547U CN220955547U CN202322404614.3U CN202322404614U CN220955547U CN 220955547 U CN220955547 U CN 220955547U CN 202322404614 U CN202322404614 U CN 202322404614U CN 220955547 U CN220955547 U CN 220955547U
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- butt joint
- ring
- fracturing
- sealing ring
- embedded
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- 210000001503 joint Anatomy 0.000 claims abstract description 113
- 238000007789 sealing Methods 0.000 claims abstract description 83
- 238000002347 injection Methods 0.000 claims abstract description 27
- 239000007924 injection Substances 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 15
- 238000003032 molecular docking Methods 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of petroleum exploitation, in particular to a fracturing head of fracturing engineering, which comprises a main body, a vertical injection cavity, a lateral injection cavity and a communication pipeline, wherein the vertical injection cavity and the lateral injection cavity are respectively positioned in the main body and at two sides, and the communication pipeline is communicated with the lateral injection cavity, and is characterized in that: the outer end of the lateral injection cavity is provided with a first butt joint structure and a second butt joint structure. Through the different first butt joint ring of diameter and second butt joint inner ring, form the support space in both junction, reach the locating pin embedding its position that is convenient for the inner setting of second butt joint ring for two sets of butt joint structures gomphosis each other keep the effect of wholeness, and this kind of gomphosis supports simultaneously and is favorable to keeping the stability of sealing position, reaches the effect that is convenient for two sets of butt joint structures carry out threaded connection through screw layer cooperation locating pin.
Description
Technical Field
The utility model relates to the technical field of petroleum exploitation, in particular to a fracturing head of a fracturing engineering.
Background
In the petroleum field, fracturing refers to a method for forming cracks in an oil and gas layer by utilizing the hydraulic action in the oil extraction or gas extraction process, and is also called hydraulic fracturing; fracturing artificially causes cracks to be generated in a stratum, improves the flowing environment of oil in the underground, increases the yield of an oil well, and plays an important role in improving the flowing condition of the bottom of the oil well, slowing down the interlayer and improving the oil layer utilization condition; the ground tool equipment for fracturing mainly comprises a blowout preventer, a wellhead ball valve, a ball throwing device, a movable elbow, an oil union, a wax ball manifold, a fracturing manifold and the like, and is a ground control tool above a wellhead.
In the prior art, the fracturing head is in order to place the condition of leaking liquid because injection hole sealing connection effect is not ideal, thereby lead to taking place, thereby the sealed effect of reinforcing through setting up ring seal in sealing connection position, the problem that exists is, this kind of ring seal is usually the size unanimous, and there is certain pressure to ring seal's spacing treatment, either do not set up corresponding limit structure, or through setting up the annular groove at the inner wall, and common inner wall annular groove is to receiving the annular seal ring under the extrusion state unable formation effectual spacing effect, therefore when setting up multiunit ring seal simultaneously, fracturing head and outside communication pipeline are connected through connection structure, make multiunit ring seal excessively extrude the stack under unlimited position or spacing unstable condition and produce excessive deformation, thereby not fully laminate the inner wall and form sealedly, make leak appear in sealing connection position, fracturing head and pipeline inside have certain pressure in the use simultaneously, ordinary fracturing head sealing connection position is ordinary threaded connection, the connection position structure is comparatively weak, be unfavorable for the long-term use of fracturing head.
Disclosure of utility model
Aiming at the defects in the prior art, the fracturing head for the fracturing engineering provided by the utility model has the advantages that the sleeving state is formed at the connecting position on the premise that the plurality of groups of sealing ring structures are limited, the extrusion stress state is vertical stress along with the sealing connection with the pipeline, the tightness and the stability of the connecting position can be effectively ensured, the butt joint inner ring and the limiting groove are arranged at the connecting position, the structural stability of the connecting position is enhanced when the state between the sealing ring structures is stable, and the service life of the fracturing head is prolonged.
In order to solve the technical problems, the utility model provides the following technical scheme:
The utility model provides a fracturing head of fracturing engineering, including the main part, the vertical injection chamber, side direction injection chamber and communication pipeline, vertical injection chamber and side direction injection chamber are located the main part inside and both sides position respectively, communication pipeline and side direction injection chamber communicate with each other and are connected, the outer end in side direction injection chamber is provided with first butt joint structure and second butt joint structure, first butt joint structure and the supporting setting of second butt joint structure, the outside of second butt joint structure is provided with fixed knot constructs, first butt joint structure is including first butt joint ring, the stabilizer blade, first butt joint inner ring, first spacing seat and embedding sealing ring, the stabilizer blade sets up two sets of outstanding outer end both sides that set up at first butt joint ring, the while embedding main part is inside, first butt joint inner ring and first butt joint ring fixed connection, first spacing seat of embedding sealing ring embedding, the fixed surface connection spiral shell line layer of first butt joint inner ring.
The second butt joint structure is including second butt joint ring, supplementary sealing ring, second butt joint inner ring, the spacing seat of second and surround the sealing ring, second butt joint ring and the spacing inner ring fixed connection of second butt joint, supplementary sealing ring embedding second butt joint inner ring in, the spacing seat of second and the spacing seat of second butt joint inner ring fixed connection, surround the spacing seat of sealing ring embedding second, fixed knot constructs including fixed outer frame, first fixed head and second fixed head fixed connection are at the both ends of fixed outer frame, the surface of second butt joint ring is provided with the spacing groove, the inner fixedly connected with locating pin of second butt joint ring.
Further, the diameter of the first butt joint ring is larger than that of the first butt joint inner ring, the first butt joint ring and the first butt joint inner ring are arranged in a welding matching mode, and the thread layer is located at the inner side of the surface of the first butt joint inner ring and close to the joint of the first butt joint ring.
Further, the first limiting seat is horizontally arranged in a protruding mode along two sides of the surface of the first butt joint inner ring, the whole is a trapezoid seat body, and one half of the whole embedded sealing ring is embedded in the trapezoid seat body.
Further, the embedded sealing ring is integrally arranged as a soft rubber ring, the two sides of the embedded sealing ring are arranged in an arc-shaped protruding mode, the inner ring is arranged in a circular mode, and the outer ring is arranged in an oval mode.
Further, the whole locating feet are located at two sides of the inner end of the second butt joint ring, horizontally protrude, and the inner side surface is provided with corresponding threads corresponding to the thread layer.
Further, the whole soft rubber ring that sets up of surrounding seal ring, and both sides position are the protruding setting of arc, and the inner circle is circular setting, and the outer lane is oval setting, and surrounding seal ring inner circle size is greater than embedded seal ring simultaneously, and surrounding seal ring and embedded seal ring are the cup joint setting.
Further, the auxiliary sealing ring is integrally attached to the inner wall of the second butt joint inner ring and is in a sleeved state and located on the outer side of the surrounding sealing ring.
Further, the second limiting seat is horizontally arranged in a protruding mode along two sides of the surface of the second butt joint inner ring, the whole body is a trapezoid seat body, and one third of the whole enclosing sealing ring is embedded in the trapezoid seat body.
Further, the fixed outer frame, the first fixed head and the second fixed head are arranged in a matched mode, the second fixed head is simultaneously embedded into the limiting groove and located at the outer side of the second butt joint ring, the surface of the first fixed head is provided with a screw hole, and the screw hole is located at the horizontal position of two sides of the main body in a horizontal state.
According to the technical scheme, the beneficial effects of the utility model are as follows:
According to the utility model, the first butting ring and the second butting inner ring with different diameters form a supporting space at the joint of the first butting ring and the second butting inner ring, so that the effect of enabling the positioning pins arranged at the inner end of the second butting ring to be embedded into the positions of the first butting ring and enabling the two groups of butting structures to be mutually embedded and keep integrity is achieved, meanwhile, the embedded support is favorable for keeping stability of the sealing position, and the effect of enabling the two groups of butting structures to be in threaded connection is achieved through matching the positioning pins by the threaded layer.
According to the utility model, the effect of limiting and fixing the embedded sealing ring is achieved through the first limiting seat.
According to the utility model, when the embedded sealing ring with the oval outer ring is embedded into the first limiting seat, the limiting stability of the embedded sealing ring can be effectively maintained, and the situation of excessive deformation and falling of extrusion is avoided.
According to the utility model, when the two groups of butt joint structures are mutually embedded, the effect of connecting the two groups of butt joint structures in a threaded manner is achieved by matching the positioning pins with the threaded layers through the threads arranged on the inner sides, and meanwhile, the contact positions of the positioning pins and the threaded layers are positioned at the height difference positions between the first butt joint inner ring and the first butt joint ring, so that the high-stability butt joint structure has good stability.
According to the utility model, the effect of limiting and fixing the surrounding sealing ring is achieved through the second limiting seat, when two groups of abutting structures are abutted, the sleeving and overlapping of the embedded sealing ring is achieved through the surrounding sealing ring, meanwhile, the outer side of the surrounding sealing ring is sleeved through the auxiliary sealing ring serving as the outermost sealing structure, and at the moment, the three groups of sealing ring structures form the sleeving structure, so that the sealing performance of the connecting position can be well maintained, and meanwhile, the sealing structure has good compression stability.
According to the utility model, the second fixing head is matched with the limiting groove and the second butt joint structure for limiting and fixing, and the second butt joint structure and the main body are connected and fixed by being matched with the first fixing head.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a front elevational view of the overall structure of the present utility model;
FIG. 2 is an enlarged view of the structure A in FIG. 1 according to the present utility model;
FIG. 3 is a schematic view of a docking structure according to the present utility model;
FIG. 4 is an enlarged view of the structure of FIG. 3B according to the present utility model;
Reference numerals:
The device comprises a main body, a 2-vertical injection cavity, a 3-lateral injection hole, a 4-communication pipeline, a 5-first butt joint structure, a 6-second butt joint structure, a 7-fixed structure, an 8-first butt joint ring, 9-supporting legs, a 10-first butt joint inner ring, an 11-thread layer, a 12-first limit seat, a 13-embedded sealing ring, a 14-second butt joint ring, a 15-auxiliary sealing ring, a 16-second butt joint inner ring, a 17-second limit seat, a 18-surrounding sealing ring, a 19-fixed outer frame, a 20-first fixed head, a 21-second fixed head, a 22-limit groove and a 23-fixed leg.
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.
Referring to fig. 1-4, a fracturing head for fracturing engineering comprises a main body 1, a vertical injection cavity 2, a lateral injection cavity 3 and a communicating pipeline 4, wherein the vertical injection cavity 2 and the lateral injection cavity 3 are respectively positioned in the main body 1 and at two sides, the communicating pipeline 4 is communicated with the lateral injection cavity 3, the outer end of the lateral injection cavity 3 is provided with a first butt joint structure 5 and a second butt joint structure 6, the first butt joint structure 5 and the second butt joint structure 6 are arranged in a matched manner, the outer side of the second butt joint structure 6 is provided with a fixing structure 7, the first butt joint structure 5 comprises a first butt joint ring 8, supporting legs 9, a first butt joint inner ring 10, a first limit seat 12 and an embedded sealing ring 13, the supporting legs 9 are fixedly connected to the outer side of the first butt joint ring 8, the first butt joint inner ring 10 is fixedly connected with the first butt joint ring 8, the first limit seat 12 is fixedly connected with the first butt joint inner ring 10, the embedded sealing ring 13 is embedded into the first limiting seat 12, the surface of the first butting inner ring 10 is fixedly connected with the threaded layer 11, the second butting structure 6 comprises a second butting ring 14, an auxiliary sealing ring 15, a second butting inner ring 16, a second limiting seat 17 and a surrounding sealing ring 18, the second butting ring 14 is fixedly connected with the second butting inner ring 16, the auxiliary sealing ring 15 is embedded into the second butting inner ring 16, the second limiting seat 17 is fixedly connected with the second butting inner ring 16, the surrounding sealing ring 18 is embedded into the second limiting seat 17, the fixed structure 7 comprises a fixed outer frame 19, a first fixed head 20 and a second fixed head 21, the first fixed head 20 and the second fixed head 21 are fixedly connected with two ends of the fixed outer frame 19, a limiting groove 22 is formed in the surface of the second butting ring 14, and the inner end of the second butting ring 14 is fixedly connected with a positioning foot 23.
In the embodiment, two groups of supporting legs 9 are arranged on two sides of the outer end of the first butting ring 8 in a protruding mode, meanwhile, the supporting legs are embedded into the main body 1, the diameter of the first butting ring 8 is larger than that of the first butting inner ring 10, the first butting ring 8 and the first butting inner ring 10 are arranged in a welding matching mode, and a thread layer 11 is located at the inner side of the surface of the first butting inner ring 10 and close to the joint of the first butting ring 8;
Through the different first docking ring 8 of diameter and second docking inner ring 10, form the support space in both junction, reach the locating pin 23 embedding its position that is convenient for the inner setting of second docking ring 14 for two sets of mutual gomphosis of docking structure keep the effect of wholeness, this kind of gomphosis supports simultaneously and is favorable to keeping the stability of sealing position, reaches the effect of being convenient for two sets of docking structures and carries out threaded connection through thread layer 11 cooperation locating pin 23.
The first limiting seat 12 horizontally protrudes along two sides of the surface of the first butt joint inner ring 10, the whole is a trapezoid seat body, and one half of the whole embedded sealing ring 13 is embedded in the trapezoid seat body;
The effect of limiting and fixing the embedded sealing ring 13 is achieved through the first limiting seat 12.
The embedded sealing ring 13 is integrally arranged as a soft rubber ring, the two sides of the embedded sealing ring are arranged in an arc-shaped bulge manner, the inner ring is circularly arranged, and the outer ring is elliptically arranged;
The embedded sealing ring 13 that the oval setting of outer lane is in the inside time of embedding first spacing seat 12, can effectually keep its spacing stability, avoids appearing squeezing excessive deformation and the condition that drops.
The positioning feet 23 are integrally positioned at two sides of the inner end of the second butting ring 14 and horizontally protrude, and the inner side surface is provided with corresponding threads corresponding to the thread layer 11;
When two sets of butt joint structures are mutually embedded, the positioning pin 23 with the inner side provided with threads is matched with the thread layer 11, so that the effect of threaded connection of the two sets of butt joint structures is achieved, and meanwhile, the contact position of the positioning pin 23 and the thread layer 11 is located at the height difference position between the first butt joint inner ring 10 and the first butt joint ring 8, so that the butt joint inner ring has good stability.
The whole surrounding sealing ring 18 is a soft rubber ring, the two sides of the surrounding sealing ring 18 are provided with arc-shaped protrusions, the inner ring is circularly provided, the outer ring is elliptically provided, the inner ring of the surrounding sealing ring 18 is larger than the embedded sealing ring 13, and the surrounding sealing ring 18 and the embedded sealing ring 13 are sleeved;
The auxiliary sealing ring 15 is integrally attached to the inner wall of the second butt joint inner ring 16 and is positioned outside the surrounding sealing ring 18 in a sleeved state;
the second limiting seat 117 horizontally protrudes along two sides of the surface of the second butting inner ring 16, is integrally a trapezoid seat body, and is embedded into one third of the whole surrounding sealing ring 18;
firstly, the effect of limiting and fixing the surrounding sealing ring 18 is achieved through the second limiting seat 17, and when two groups of abutting structures are abutted, the sleeving and overlapping of the embedded sealing ring 13 is achieved through the surrounding sealing ring 18, meanwhile, the outer side of the surrounding sealing ring 18 is sleeved through the auxiliary sealing ring 15 serving as an outermost sealing structure, at the moment, the three groups of sealing ring structures form a sleeving structure, the sealing performance of the connecting position can be well kept, and meanwhile, the sealing structure has good compression stability.
The fixed outer frame 19, the first fixed head 20 and the second fixed head 21 are arranged in a matched mode, the second fixed head 21 is simultaneously embedded into the limit groove 22 and is positioned at the outer side of the second docking ring 14, screw holes are formed in the surface of the first fixed head 20, and the screw holes are horizontally positioned at two sides of the main body 1;
The second fixing head 21 is matched with the limiting groove 22 and the second butt joint structure 6 to carry out limiting fixation, and is matched with the first fixing head 20 to complete connection fixation of the second butt joint structure 6 and the main body 1.
Working principle: when the first butt joint structure 5 and the second butt joint structure 6 are in jogged butt joint, three groups of sealing rings at the connecting positions are in a mutually sleeved state, the connecting positions form a jogged whole through the first butt joint ring 8 and the second butt joint ring 14, stability and tightness of the fracturing head in use are effectively kept, the butt joint structure and the main body 1 structure are fixed through the fixing structure 7, limiting treatment is carried out between the second fixing head 21 and the first butt joint ring 14 through the limiting groove 22, and connection and fixation of the fracturing head and the main body 1 structure are completed through external screws and the first fixing head 20.
Finally, it should be noted that: 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 (9)
1. The utility model provides a fracturing head of fracturing engineering, includes main part (1), perpendicular injection chamber (2), side direction injection chamber (3) and communication pipeline (4), and perpendicular injection chamber (2) and side direction injection chamber (3) are located main part (1) inside and both sides position respectively, and communication pipeline (4) and side direction injection chamber (3) communicate with each other and are connected, its characterized in that: the outer end of the lateral injection cavity (3) is provided with a first butt joint structure (5) and a second butt joint structure (6), the first butt joint structure (5) and the second butt joint structure (6) are arranged in a matched mode, the outer side of the second butt joint structure (6) is provided with a fixing structure (7), the first butt joint structure (5) comprises a first butt joint ring (8), supporting legs (9), a first butt joint inner ring (10), a first limit seat (12) and an embedded seal ring (13), the supporting legs (9) are provided with two groups of protruding parts which are arranged on two sides of the outer end of the first butt joint ring (8) and are embedded into the main body (1), the first butt joint inner ring (10) is fixedly connected with the first butt joint ring (8), the embedded seal ring (13) is embedded into the first limit seat (12), and the surface of the first butt joint inner ring (10) is fixedly connected with a thread layer (11);
The second butt joint structure (6) is including second butt joint ring (14), supplementary sealing ring (15), second butt joint inner ring (16), second spacing seat (17) and surrounding sealing ring (18), second butt joint ring (14) and second butt joint inner ring (16) fixed connection, supplementary sealing ring (15) embedding second butt joint inner ring (16) in, second spacing seat (17) and second butt joint inner ring (16) fixed connection, surrounding sealing ring (18) embedding second spacing seat (17), fixed knot constructs (7) including fixed outer frame (19), first fixed head (20) and second fixed head (21) fixed connection are at the both ends of fixed outer frame (19), the surface of second butt joint ring (14) is provided with spacing groove (22), the inner fixedly connected with locating pin (23) of second butt joint ring (14).
2. The fracturing head of a fracturing engineering of claim 1, wherein: the diameter of the first butt joint ring (8) is larger than that of the first butt joint inner ring (10), the first butt joint ring (8) and the first butt joint inner ring (10) are arranged in a welding matching mode, and the thread layer (11) is located at the inner side of the surface of the first butt joint inner ring (10) and close to the joint of the first butt joint ring (8).
3. The fracturing head of a fracturing engineering of claim 1, wherein: the first limiting seat (12) horizontally protrudes along two sides of the surface of the first butt joint inner ring (10), the whole is a trapezoid seat body, and the embedded sealing ring (13) is embedded in one half of the whole.
4. The fracturing head of a fracturing engineering of claim 1, wherein: the embedded sealing ring (13) is integrally arranged as a soft rubber ring, the two sides of the embedded sealing ring are arranged in an arc-shaped bulge mode, the inner ring is arranged in a round mode, and the outer ring is arranged in an oval mode.
5. The fracturing head of a fracturing engineering of claim 1, wherein: the positioning pins (23) are integrally positioned at two sides of the inner end of the second butt joint ring (14), horizontally protrude, and the inner side surface is provided with corresponding threads corresponding to the thread layer (11).
6. The fracturing head of a fracturing engineering of claim 1, wherein: the surrounding sealing ring (18) is integrally arranged as a soft rubber ring, the two sides of the surrounding sealing ring are provided with arc-shaped protrusions, the inner ring is circularly arranged, the outer ring is elliptically arranged, the inner ring size of the surrounding sealing ring (18) is larger than that of the embedded sealing ring (13), and the surrounding sealing ring (18) and the embedded sealing ring (13) are sleeved.
7. The fracturing head of a fracturing engineering of claim 1, wherein: the auxiliary sealing ring (15) is integrally attached to the inner wall of the second butt joint inner ring (16) and is positioned outside the surrounding sealing ring (18) in a sleeved state.
8. The fracturing head of a fracturing engineering of claim 1, wherein: the second limiting seat (17) horizontally protrudes along two sides of the surface of the second butt joint inner ring (16), the whole body is a trapezoid seat body, and one third of the whole surrounding sealing ring (18) is embedded in the trapezoid seat body.
9. The fracturing head of a fracturing engineering of claim 1, wherein: the fixed outer frame (19), the first fixed head (20) and the second fixed head (21) are arranged in a matched mode, the second fixed head (21) is simultaneously embedded into the limiting groove (22) and located at the outer side of the second butt joint ring (14), screw holes are formed in the surface of the first fixed head (20), and the screw holes are located at two sides of the main body (1) in a horizontal state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322404614.3U CN220955547U (en) | 2023-09-05 | 2023-09-05 | Fracturing head of fracturing engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322404614.3U CN220955547U (en) | 2023-09-05 | 2023-09-05 | Fracturing head of fracturing engineering |
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| Publication Number | Publication Date |
|---|---|
| CN220955547U true CN220955547U (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322404614.3U Active CN220955547U (en) | 2023-09-05 | 2023-09-05 | Fracturing head of fracturing engineering |
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| Country | Link |
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| CN (1) | CN220955547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU229964U1 (en) * | 2024-08-05 | 2024-11-06 | Товарищество с ограниченной ответственностью "Темир Энерджи Централ Эйжа" | HIGH PRESSURE FRACTURING HEAD |
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2023
- 2023-09-05 CN CN202322404614.3U patent/CN220955547U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU229964U1 (en) * | 2024-08-05 | 2024-11-06 | Товарищество с ограниченной ответственностью "Темир Энерджи Централ Эйжа" | HIGH PRESSURE FRACTURING HEAD |
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