CN220267676U - Quick connector of perforator - Google Patents
Quick connector of perforator Download PDFInfo
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- CN220267676U CN220267676U CN202321093508.1U CN202321093508U CN220267676U CN 220267676 U CN220267676 U CN 220267676U CN 202321093508 U CN202321093508 U CN 202321093508U CN 220267676 U CN220267676 U CN 220267676U
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- 210000001503 joint Anatomy 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 18
- 230000008859 change Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 13
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of oil field perforation, and particularly relates to a quick connector of a perforator, which consists of an upper connector and a lower connector, wherein the upper connector is a male connector, the lower connector is a female connector, and an arc-shaped convex edge, an inserting plate groove and a clamping groove are arranged on a body of the upper connector; an arc-shaped boss is arranged on the body of the lower joint, and a safety locking block is arranged in a groove at the end part of the lower joint; when the upper joint is in butt joint with the lower joint, the cylindrical section of the arc-shaped convex edge of the upper joint is completely inserted into the lower joint, the arc-shaped convex edge is in butt joint with the arc-shaped boss of the inner hole of the lower joint after the cylindrical section is rotated by 90 degrees, and meanwhile, the safety locking block falls into the clamping groove to be locked. The connection mode of the quick connector can quickly complete the butt joint or the disassembly of the two perforating guns at the wellhead only through plugging, rotation and automatic locking. The quick connector only changes the connection process of the perforating gun pipe column at the wellhead when the pipe is conveyed to the perforation, but does not change the process parameters of the perforating gun middle connector in the pipe column, and does not influence the engineering process design of the oil and gas well pipe conveying perforation.
Description
Technical Field
The utility model belongs to the technical field of oilfield perforation, and particularly relates to a quick connector of a perforator.
Background
TCP oil pipe conveying perforation is the main well completion process of oil and gas wells of oil fields, and each oil field occupies more than half of perforation operation construction amount in China. The process has the advantage that perforation of all intervals of one oil-gas well can be completed by using a string of tubular columns. In the process tool, the middle joint of the perforator is a key component for connecting the perforator into a perforator string, and plays an important role in connecting the perforator. As a connecting piece, the middle joint of the perforator used in the current engineering is of an integrated double-thread structure, the middle joint is pre-assembled at the upper end of the perforator body before perforation, and when the perforating completion is performed, the perforator needs to be connected one by one through rotating threads at a wellhead, and a gun string of the perforator is assembled underground. And after perforation, the steps are operated in reverse order, and the gun is started to disassemble the perforating gun string. In these working steps, the following main process defects have been found. The connection between the perforator and the gun at the wellhead is screwed by threads, the length of the connecting threads is more than 40mm, and the self weight of the perforator is large, two operators are generally required to operate on a wellhead platform by using large pipe tongs, the perforator is connected and assembled by screwing the threads by using pipe tongs tools, and the connection and assembly process is time-consuming and labor-consuming. In addition, after perforation, the perforating gun is disassembled by screw threads, and the time and the labor are consumed. Therefore, the existing perforation process greatly influences the perforation operation aging due to the reason that threads are used for screwing and unscrewing, and the operation labor intensity is high. So that the overall process has lower work efficiency. Secondly, in the aspect of construction quality accidents, the phenomenon of the gun body and the middle joint sticking buckle or the grinding buckle happens occasionally due to product quality or illegal operation, so that construction is stopped in the middle, the construction period is influenced, and certain economic loss is caused. The perforating gun middle joint disclosed by the application number CN200820090254.7 is of an integrated double-thread structure, and the perforating gun middle joint is time-consuming and labor-consuming to disassemble, low in efficiency and potential safety hazard.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the quick connector of the perforator, which is time-saving, labor-saving, efficient and safe. The quick connector is a convenient intermediate connector used between the pipe-conveying perforators, and the connection mode can quickly complete the butt joint or the disassembly of the two perforators at the wellhead only through splicing, rotation and automatic locking. The quick connector only changes the connection process of the perforating gun pipe column at the wellhead when the pipe is conveyed to the perforation, but does not change the process parameters of the perforating gun middle connector in the pipe column, and does not influence the engineering process design of the oil and gas well pipe conveying perforation.
The utility model adopts the technical scheme that: the quick connector of the perforator consists of an upper connector and a lower connector, wherein the upper connector is a male connector, the lower connector is a female connector, and an arc-shaped convex edge, an inserting plate groove and a clamping groove are arranged on a body of the upper connector; an arc-shaped boss is arranged on the body of the lower connector, and a safety locking block is arranged in a groove at the end part of the lower connector; when the upper joint is in butt joint with the lower joint, the cylindrical section of the arc-shaped convex edge of the upper joint is completely inserted into the lower joint, the arc-shaped convex edge is in butt joint with the arc-shaped boss of the inner hole of the lower joint after the cylindrical section is rotated by 90 degrees, and meanwhile, the safety locking block falls into the clamping groove to be locked.
Further, the safety card locking block is arranged on the lower connector through a pin shaft, a spring is sleeved on the pin shaft, one end of the spring is inserted on the lower connector, and the other end of the spring is inserted on the safety card locking block.
Further, a sealing ring groove and connecting threads are arranged on the upper joint.
The utility model has the beneficial effects that: the quick connector of the perforator is time-saving, labor-saving, efficient and safe. The quick connector is a convenient intermediate connector used between the pipe-conveying perforators, and the connection mode can quickly complete the butt joint or the disassembly of the two perforators at the wellhead only through splicing, rotation and automatic locking. The quick connector only changes the connection process of the perforating gun pipe column at the wellhead when the pipe is conveyed to the perforation, but does not change the process parameters of the perforating gun middle connector in the pipe column, and does not influence the engineering process design of the oil and gas well pipe conveying perforation.
On the one hand, the quick connector of the perforator can be reused after being disassembled for cleaning, finishing and detection after perforation construction, so that the cost of engineering equipment can be reduced. The quick connector is of a plug-in structure, threads are not arranged at the connecting end, fu Yiwu is not easy to adhere, and the connecting end is not damaged by slight collision to influence plug-in. The thread ends of the upper connector and the lower connector are assembled in the port of the gun body of the perforator before construction, the threads are protected by the gun body, and the threads are assembled in a safe and clean environment, so that the grinding buckle caused by sticking foreign matters is avoided, the phenomenon that equipment is damaged due to the grinding buckle is thoroughly avoided, and the waste and the delay period caused by equipment damage are avoided.
On the other hand, the connection with the existing perforator is realized by screwing the thread, the connection can be realized by one plug and one screw, the technical condition of time and labor consumption in the prior construction is solved, the labor intensity of operators is greatly reduced, the perforation construction efficiency is improved in a multiple way, and the energy saving and efficiency increasing channel is opened up for enterprises due to the improvement of the working efficiency and the reduction of the labor intensity.
Drawings
Fig. 1 is a schematic cross-sectional structure of the first embodiment.
Fig. 2 is a schematic cross-sectional structure of the upper joint in the first embodiment.
Fig. 3 is a schematic view in the direction a in fig. 2.
Fig. 4 is a left side view of fig. 2.
Fig. 5 is a schematic cross-sectional structure of the lower joint in the first embodiment.
Fig. 6 is a left side view of fig. 5.
FIG. 7 is a schematic illustration of a continuous gun of a quick connector of a perforating gun in accordance with an embodiment I.
FIG. 8 is a schematic illustration of the application of a quick connector of a perforating gun of the first embodiment.
Description of the embodiments
Examples
Referring to the figures, the quick connector of the perforator consists of an upper connector 1 and a lower connector 2, wherein the upper connector is a male connector, the lower connector is a female connector, and an arc-shaped convex edge 12, an inserting plate groove 13 and a clamping groove 14 are arranged on a body 11 of the upper connector; an arc-shaped boss 23 is arranged on the body 21 of the lower joint, and a safety locking block 22 is arranged in a groove at the end part of the lower joint; when the upper joint is in butt joint with the lower joint, the cylindrical section of the arc-shaped convex edge of the upper joint is completely inserted into the lower joint, the arc-shaped convex edge is in butt joint with the arc-shaped boss of the inner hole of the lower joint after the cylindrical section is rotated by 90 degrees, and meanwhile, the safety locking block falls into the clamping groove to be locked; : the safety card locking block is arranged on the lower connector through a pin shaft 23, a spring 24 is sleeved on the pin shaft, one end of the spring is inserted on the lower connector, and the other end of the spring is inserted on the safety card locking block; and the lower joint and the upper joint are provided with a sealing ring groove and connecting threads.
The quick connector of the perforator adopts an upper-lower two-body structure in structural design, the upper connector is a male connector, the lower connector is a female connector, and the application of the quick connector of the perforator to the perforator is shown in fig. 7 and 8. The perforator body 36 comprises an upper perforating gun 3 and a lower perforating gun 6, and a lower centralizing pipe 4 and an upper centralizing pipe 5 are arranged in the gun body. The connection mode of the perforator during operation is shown in fig. 7, and the lower connector (female connector) of the upper column perforator and the upper connector (male connector) of the lower column perforator are inserted and rotated downwards until the safety lock is locked during connection, so that connection assembly is completed. The original threaded matching connection is replaced by a plugging and hanging connection mode. The male head and the female head of the quick connector of the perforating tool are provided with arc-shaped convex edges and arc-shaped bosses, the arc length is about 1/4 of the length of the circumference of the perforating tool, and the arc-shaped convex edges and the arc-shaped bosses are symmetrically distributed on the circumference. When in connection, the arc-shaped convex edge on the upper connector is inserted into the lower connector and rotated for 90 degrees, and is lapped with the two arc-shaped bosses on the lower connector, meanwhile, the two symmetrical safety locking blocks on the lower connector fall into the clamping grooves of the upper connector, lock and prevent the upper connector and the lower connector from continuing to rotate, and the connection of the two perforating guns is completed.
The threaded ends of the upper connector and the lower connector are arranged at the upper end and the lower end of the perforator in advance through screwing when TCP perforation is carried out, and the perforator is sequentially lowered into the well according to the descending sequence of the perforator when the wellhead is connected with the gun. In the process, the former column of perforator goes into the well, the perforator is fixed at the well head by inserting the plugboard slot of the upper connector through the plugboard card, then the next column of perforator is lifted, the lower connector is aligned with the upper connector on the well head at the well head, the upper connector and the lower connector are inserted and leaned against, the perforator above the well head is rotated by 90 degrees, at the moment, the safety card locking block arranged on the lower connector can automatically fall into the clamping slot to lock the axial rotation of the upper connector and the lower connector, the connected guns are prevented from being released from each other, the tools are not used for unlocking, and the upper connector and the lower connector cannot be released. And (3) circularly operating according to the step until all perforators finish the connection in the well according to the construction sequence.
The safety card locking piece is a special-shaped cuboid part, one end of the safety card locking piece is provided with a shaft hole, the safety card locking piece is fixed in the mounting groove of the lower joint body through a pin shaft, a spring is assembled on the pin shaft of the safety card locking piece, and the safety card locking piece protrudes out of the left end face of the lower joint body 1 in a natural state under the action of the spring. When the upper connector is inserted into the inner hole of the lower connector, the safety clamping locking block is pressed on the contact surface of the upper connector and retracted towards the right side of the lower connector, then when the upper connector and the lower connector relatively rotate by 90 degrees, the mounting groove on the left side of the lower connector body is aligned with the clamping groove of the upper connector, after the two locking key grooves are aligned, the safety clamping locking block leaves the contact surface pressing of the upper connector at the moment and resets under the action of the spring, and the reset safety clamping locking block just falls into the clamping groove of the upper connector. The safety locking block falling into the clamping groove is just like a key bar assembled to a key groove between two hole shafts, so that the axial rotation of the two shafts is locked, and unnecessary detachment caused by transitional rotation between the upper connector and the lower connector can be prevented, thereby causing construction safety accidents. When the lock is unlocked, a special tool is needed to be used, and meanwhile, the safety clamping locking block is pried upwards, so that the safety clamping locking block is separated from the clamping groove of the upper connector, and then the lower connector is rotated by 90 degrees to complete the unlocking and the disassembly of the upper connector and the lower connector.
Before TCP perforation construction, the perforator needs to be assembled in a initiating explosive device assembly workshop in advance. During assembly, the perforating bullet, the detonating cord, the bullet rack, the upper centralizing pipe and the lower centralizing pipe are assembled to form a bullet rack assembly, the assembled bullet rack assembly is assembled into the gun body of the perforating gun, the upper connector is arranged at the upper end of the perforating gun, and the lower connector is arranged at the lower end of the perforating gun to form the perforating gun.
When the TCP perforation is performed, the first column perforating tool is placed into a wellhead by using a special shortening tool, an inserting plate is inserted, the second column perforating tool is lifted, the upper joint of the first column perforating tool and the lower joint of the second column perforating tool are inserted in alignment and are abutted, and then the second column perforating tool is rotated by 90 degrees to complete the connection work of the two perforating tools. After perforation, the perforating gun is disassembled simply and quickly, the safety lock is unlocked only by a tool, the perforating gun is rotated by 90 degrees, and the two perforating guns are separated from each other by lifting the perforating gun.
After perforation, the perforating tool is disassembled simply and conveniently, when the upper first-column perforating tool is lifted out of the wellhead, a plugboard card is inserted into a plugboard groove of an upper joint of the next-column perforating tool, a perforating tool pipe column is fixed at the wellhead, a special tool is used for prying up a safety clamping block from the clamping groove, the axial locking of the upper and lower middle joints is released, the upper perforating tool is rotated by 90 degrees, the upper perforating tool is lifted, the two perforating tools are separated from the perforating tool to complete the disassembly, and when the TCP oil pipe is disassembled to complete the whole perforating tool pipe column to convey perforation, the butt joint of the two perforating tools at the wellhead can be completed rapidly only through the grafting of the upper joint and the lower joint, the rotation of 90 degrees and the automatic locking. When the perforating gun is disassembled after perforation, the two perforating guns can be separated only by unlocking and rotating by 90 degrees. The quick connector only changes the connection process of the perforating gun pipe column at the wellhead when the pipe is conveyed and perforated, but does not change the process parameters of the perforating gun middle connector in the pipe column, and does not influence the engineering process design of the TCP oil gas well pipe conveying and perforating.
Compared with a double-thread middle joint, the quick joint of the perforator changes the connection mode, the connection of the perforator and the perforator at the wellhead is not in threaded connection any more, and the butt connection of the perforator is completed by adopting a quick connection method of plugging, rotating and automatic locking. The connection process is changed, so that the connection of the perforator becomes quicker, simpler and more convenient when the oil pipe is used for conveying perforation. The quick connector can complete the operation of connecting the gun by one plug and one screw, greatly lightens the operation strength on the labor force, and improves the work efficiency by times compared with the original screw connection mode.
The automatic anti-loosening safety locking block is arranged at the joint of the upper connector and the lower connector for ensuring the safety of construction, and after the perforator is inserted and rotated for 90 degrees, the safety locking block can automatically lock the axial rotation of the upper connector and the lower connector, so that the perforator is prevented from loosening and falling off in the lifting process, and the construction can be ensured. After the oil pipe is conveyed and perforated, the perforating gun can be detached by only opening the safety lock by a tool and rotating the perforating gun by 90 degrees.
Claims (3)
1. A perforator quick connector, characterized in that: the perforating gun quick connector consists of an upper connector and a lower connector, wherein an arc-shaped convex edge, an inserting plate groove and a clamping groove are formed in the body of the upper connector; an arc-shaped boss is arranged on the body of the lower connector, and a safety locking block is arranged in a groove at the end part of the lower connector; when the upper joint is in butt joint with the lower joint, the cylindrical section of the arc-shaped convex edge of the upper joint is completely inserted into the lower joint, the arc-shaped convex edge is in butt joint with the arc-shaped boss of the inner hole of the lower joint after the cylindrical section is rotated by 90 degrees, and meanwhile, the safety locking block falls into the clamping groove to be locked.
2. A quick connector for a perforator according to claim 1, wherein: the safety card locking block is arranged on the lower connector through a pin shaft, a spring is sleeved on the pin shaft, one end of the spring is inserted on the lower connector, and the other end of the spring is inserted on the safety card locking block.
3. A quick connector for a perforator according to claim 1, wherein: and the upper joint is provided with a sealing ring groove and connecting threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321093508.1U CN220267676U (en) | 2023-05-09 | 2023-05-09 | Quick connector of perforator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321093508.1U CN220267676U (en) | 2023-05-09 | 2023-05-09 | Quick connector of perforator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220267676U true CN220267676U (en) | 2023-12-29 |
Family
ID=89316247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321093508.1U Active CN220267676U (en) | 2023-05-09 | 2023-05-09 | Quick connector of perforator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220267676U (en) |
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2023
- 2023-05-09 CN CN202321093508.1U patent/CN220267676U/en active Active
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