CN216214394U - Novel quick connecting joint of rotary perforating gun - Google Patents
Novel quick connecting joint of rotary perforating gun Download PDFInfo
- Publication number
- CN216214394U CN216214394U CN202122538622.8U CN202122538622U CN216214394U CN 216214394 U CN216214394 U CN 216214394U CN 202122538622 U CN202122538622 U CN 202122538622U CN 216214394 U CN216214394 U CN 216214394U
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- China
- Prior art keywords
- assembly
- joint assembly
- perforating gun
- sealing plug
- joint
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000012212 insulator Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 208000035389 Ring chromosome 6 syndrome Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Abstract
The utility model provides a novel rotary perforating gun quick connecting joint which comprises an upper joint assembly and a lower joint assembly, wherein the joint ends of the upper joint assembly and the lower joint assembly are used for being connected with a perforating gun screw thread, one end of the upper joint assembly, which is connected with the lower joint assembly, forms a sealing structure, the sealing structure comprises sealing structures on two sides of a conductive column of the upper joint assembly and the lower joint assembly and sealing structures on two sides of a high-pressure sealing plug of the upper joint assembly and the lower joint assembly, the quick connecting joint can realize quick assembly and disassembly among various perforating guns, and the operation is convenient.
Description
Technical Field
The utility model relates to a perforating gun for oil pipe conveying perforation, in particular to a novel quick connecting joint of a rotary perforating gun.
Background
In the petroleum industry, perforation completion is the most widely used completion method at home and abroad at present. At present, the perforation modes commonly adopted at home and abroad comprise cable conveying perforation and oil pipe conveying perforation. The cable conveying perforation can complete single-layer or small well section perforation, the oil pipe conveying perforation can complete simultaneous perforation of a long well section and multiple layers, and the mode is also a perforation mode commonly adopted at home and abroad at present.
The connection between the existing perforating guns is realized by screwing the threads of the male joint and the female joint together, and most thread connection modes have the defects of inconvenient operation, incapability of quick disassembly and assembly, time and labor consumption and incapability of disassembly and replacement due to corrosion after long-term use due to the rotation of a thread ring.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quick connecting joint of a rotary perforating gun, which can realize quick assembly and disassembly among various perforating guns and is convenient to operate.
The novel quick connecting joint for the rotary perforating gun comprises an upper joint assembly and a lower joint assembly, wherein the joint ends of the upper joint assembly and the lower joint assembly are used for being connected with a thread of the perforating gun, the upper joint assembly comprises an upper joint and an insulator, one end of the insulator is provided with a conductive column, the other end of the insulator is provided with a high-voltage sealing plug, one end of the high-voltage sealing plug is provided with the insulator, and the other end of the high-voltage sealing plug is provided with a pressing screw;
the lower connector assembly comprises a lower connector and a pressing screw, wherein one end of the pressing screw is sequentially provided with a conductive block, a spring, an insulating seat and a clamp spring from right to left, the other end of the pressing screw is provided with a high-pressure sealing plug, one end of the high-pressure sealing plug is provided with the pressing screw, and the other end of the high-pressure sealing plug is sequentially provided with a conductive column and an insulator from left to right;
the one end that the lower clutch assembly was connected to the top connection assembly forms seal structure, seal structure includes the seal structure of top connection assembly and lower clutch assembly conductive pillar both sides and the seal structure of top connection assembly and lower clutch assembly high pressure sealing plug both sides.
The sealing structure is a sealing ring.
The quick joint structure is simple, convenient to operate, safe and reliable, greatly improves the working efficiency, reduces the labor intensity, and can be directly connected with various existing perforating gun products to realize quick assembly and disassembly on the premise of not changing the existing perforating gun system.
Drawings
FIG. 1 is a cross-sectional view of a top sub assembly according to the present invention;
FIG. 2 is a cross-sectional view of a lower joint assembly of the present invention;
reference numerals: the device comprises an upper joint-1, an insulator-2, a high-voltage sealing plug-3, a pressing screw-4, a conductive column-5, a sealing ring-6, a lower joint-7, a snap spring-8, a conductive block-9, a spring-10 and an insulating seat-11.
Detailed Description
The structure of the quick connector of the tubing-conveyed perforating gun is described in detail with reference to the specific embodiment.
Referring to fig. 1-2, the novel quick connector for the rotary perforating gun of the utility model comprises an upper connector assembly and a lower connector assembly, wherein the connector ends of the upper connector assembly and the lower connector assembly are respectively connected with a thread of the perforating gun; and one end of the upper joint assembly connected with the lower joint assembly forms a sealing structure;
the upper joint assembly comprises an upper joint 1 and an insulator 2, wherein one end of the insulator is provided with a conductive column 5, the other end of the insulator is provided with a high-voltage sealing plug 3, one end of the high-voltage sealing plug is provided with the insulator 2, and the other end of the high-voltage sealing plug is provided with a pressing screw 4;
the lower connector assembly comprises a lower connector 7 and a pressing screw 4, wherein one end of the pressing screw is sequentially provided with a conductive block 9, a spring 10, an insulating seat 11 and a clamp spring 8 from right to left, the other end of the pressing screw is provided with a high-voltage sealing plug 3, one end of the high-voltage sealing plug 3 is provided with the pressing screw 4, and the other end of the high-voltage sealing plug is sequentially provided with a conductive column 5 and an insulator 2 from left to right;
the sealing structure comprises sealing structures on two sides of a conductive column of the upper joint assembly and the lower joint assembly and sealing structures on two sides of a high-pressure sealing plug of the upper joint assembly and the lower joint assembly.
The sealing structure is a sealing ring 6.
The use method of the quick connector comprises the following steps:
and (3) respectively connecting the upper joint assembly and the lower joint assembly with an oil pipe conveying perforating gun through the screw thread ends, and finishing the operation indoors. Then inserting the upper joint assembly into the lower joint assembly, wherein the connection structure can ensure that the upper joint assembly is inserted into the lower joint assembly along the axial direction and relatively rotates along the axial direction to be interlocked in a half-rotating mode;
when the disassembly is needed, the upper joint assembly and the lower joint assembly are rotated to the position relatively, and the upper joint assembly and the lower joint assembly are separated.
When the oil pipe is used for conveying and perforating, the perforating gun is connected at a well head by adopting a perforating gun quick joint, and the quick joint and the perforating gun are pulled out of the well to complete perforating construction. When special conditions are met, the perforating device is very simple, convenient and safe when the perforating function is not completed and the perforating device needs to be disassembled, and the wellhead only needs to rotate the upper joint assembly and the lower joint assembly relatively to the position and separate the upper joint assembly and the lower joint assembly.
The technical indexes related to the joint are as follows: the pressure resistance is 140 MPa, the temperature resistance is 175 ℃, the anti-rotation pin shearing force is 20 tons, the lead L =31, and the pitch F = 3.175.
This structure adopts two sealed design philosophies (the seal structure of top connection assembly and lower clutch assembly conductive pillar both sides and the seal structure of top connection assembly and lower clutch assembly high pressure sealing plug both sides) in order to reduce the dismouting maintenance, ensures to bring unnecessary work load for the site operation, also influences the construction progress next time, and this product is in order to strengthen life, and overall structure takes the nitrogenize processing.
Claims (2)
1. A novel quick connecting joint of a rotary perforating gun comprises an upper joint assembly and a lower joint assembly, wherein the joint ends of the upper joint assembly and the lower joint assembly are used for being connected with a thread of the perforating gun;
the lower connector assembly comprises a lower connector and a pressing screw, wherein one end of the pressing screw is sequentially provided with a conductive block, a spring, an insulating seat and a clamp spring from right to left, the other end of the pressing screw is provided with a high-pressure sealing plug, one end of the high-pressure sealing plug is provided with the pressing screw, and the other end of the high-pressure sealing plug is sequentially provided with a conductive column and an insulator from left to right;
the one end that the lower clutch assembly was connected to the top connection assembly forms seal structure, seal structure includes the seal structure of top connection assembly and lower clutch assembly conductive pillar both sides and the seal structure of top connection assembly and lower clutch assembly high pressure sealing plug both sides.
2. The novel rotary perforating gun quick connect coupling of claim 1 wherein the sealing structure is a gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122538622.8U CN216214394U (en) | 2021-10-21 | 2021-10-21 | Novel quick connecting joint of rotary perforating gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122538622.8U CN216214394U (en) | 2021-10-21 | 2021-10-21 | Novel quick connecting joint of rotary perforating gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216214394U true CN216214394U (en) | 2022-04-05 |
Family
ID=80886235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122538622.8U Expired - Fee Related CN216214394U (en) | 2021-10-21 | 2021-10-21 | Novel quick connecting joint of rotary perforating gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216214394U (en) |
-
2021
- 2021-10-21 CN CN202122538622.8U patent/CN216214394U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220405 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |