CN206035440U - Lower trapper and lubricator connection structure that possess quick pressure testing function - Google Patents
Lower trapper and lubricator connection structure that possess quick pressure testing function Download PDFInfo
- Publication number
- CN206035440U CN206035440U CN201620962624.6U CN201620962624U CN206035440U CN 206035440 U CN206035440 U CN 206035440U CN 201620962624 U CN201620962624 U CN 201620962624U CN 206035440 U CN206035440 U CN 206035440U
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- CN
- China
- Prior art keywords
- lubricator
- trapper
- pressure testing
- wall
- sealing washer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000002265 prevention Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 6
- 210000002445 nipple Anatomy 0.000 abstract description 5
- 101100293261 Mus musculus Naa15 gene Proteins 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a lower trapper and lubricator connection structure that possess quick pressure testing function, including lubricator and lower trapper, down the upper end of trapper is passed through the union nut and is connected with the lower extreme of lubricator, and the messenger the direct cover of trapper inner wall is located and is prevented on the outer wall of nozzle tube down, prevent being equipped with O shape sealing washer and the 2nd O shape sealing washer between outer wall of nozzle tube and the lubricator inner wall there is the pressure testing hole along radially boring on the lower trapper between O shape sealing washer and the 2nd O shape sealing washer, with it connects to install the pressure testing on the lower trapper outer wall that the pressure testing pore pair was answered. With lubricator and lower trapper lug connection, and possessing quick pressure testing function, directly cancelling quick pressure testing nipple joint part moreover, be two parts with the reduction of original three part, and functions of the equipments are unchangeable, consequently, this connection structure has not only reduced equipment cost, has reduced well head equipment fixing height moreover.
Description
Technical field
The utility model belongs to oil field wireline operation technical field, and in particular to it is a kind of possess catch under Quick-action pressure-testing function
Catch device and blowout prevention pipe connecting structure.
Background technology
During traditional oil field wireline operation, after operation completes one layer, need to dismantle lubricator string from well head,
It is installed to the next layer of shaft mouth operation again after replacing instrument again.Original operational method is to install fast between lubricator and lower catcher
Fast pressure testing pipe nipple come the sealing pressure testing after being dismantled every time, therefore, original operational method needs lubricator, Quick-action pressure-testing pipe nipple
And lower three parts of catcher, it is more that this operational method has a part of appliance, and setting height(from bottom) is big and equipment cost is high etc.
Shortcoming.
Utility model content
The utility model solves the deficiencies in the prior art, there is provided a kind of lower catcher for possessing Quick-action pressure-testing function with it is anti-
Jet pipe attachment structure, lubricator are directly connected to lower catcher, and possess Quick-action pressure-testing function.
The technical scheme adopted by the utility model is：A kind of lower catcher for possessing Quick-action pressure-testing function is connected with lubricator
Binding structure, including lubricator and lower catcher, the upper end of the lower catcher is connected with the lower end of lubricator by union nut,
And the lower catcher inwall is directly sleeved in blowout prevention pipe outer wall；It is provided between the blowout prevention pipe outer wall and blowout prevention inside pipe wall
First O-ring seals and the second O-ring seals, the lower catcher between first O-ring seals and the second O-ring seals
On be radially drilled with pressure testing hole, action pressure-testing joint is installed on lower catcher outer wall corresponding with the pressure testing hole.
Compared to prior art, the utility model has the advantage that：Lubricator is directly connected to lower catcher, and
Possess Quick-action pressure-testing function, and directly cancel Quick-action pressure-testing pipe nipple part, original three parts are reduced to into two parts, and
Functions of the equipments are constant；Therefore, the attachment structure not only reduces equipment cost, and reduces wellhead equipment setting height(from bottom).
Description of the drawings
Fig. 1 is the utility model structural representation.
Specific embodiment
With reference to the accompanying drawings and detailed description the utility model is described in detail.
A kind of lower catcher for possessing Quick-action pressure-testing function and blowout prevention pipe connecting structure, structure is as shown in figure 1, including blowout prevention
Pipe 1 and lower catcher 2, the upper end of the lower catcher 2 are connected with the lower end of lubricator 1 by union nut 7, and make it is described under
2 inwall of catcher is directly sleeved on 1 outer wall of lubricator；An O is provided between 1 inwall of 1 outer wall of the lubricator and lubricator
Shape sealing ring 4 and the second O-ring seals 5, the lower catcher 2 between first O-ring seals 4 and the second O-ring seals 5
On be radially drilled with pressure testing hole 6, action pressure-testing joint 3 is installed on 2 outer wall of lower catcher corresponding with the pressure testing hole 6.
Original Quick-action pressure-testing joint modular construction is referred to lubricator lower end by the structure, and lower catcher top is tied
Structure is redesigned, it is ensured that connection；Twice O-ring seals structure is arranged on lubricator, and in lubricator twice O-ring seals
Between position bore pressure testing hole and carry out pressure testing；Action pressure-testing joint is installed to into the twice O-ring seals position corresponding to lower catcher, is being made
Quick-action pressure-testing is capable of achieving during industry, therefore, Quick-action pressure-testing pipe nipple this part is eliminated, equipment connection structure is optimized.
The traditional wireline operation technique of the structural improvement, reduces number of devices, reduces equipment cost and improves
The operation amount of labour；
Above-described embodiment, simply preferred embodiment of the present utility model, not for limiting enforcement model of the present utility model
Enclose, therefore all equivalent variations done with content described in the utility model claim, all should be included in the utility model right will
Within the scope of asking.
Claims (1)
1. the lower catcher and blowout prevention pipe connecting structure of Quick-action pressure-testing function are possessed, including lubricator (1) and lower catcher (2),
It is characterized in that：The upper end of lower catcher (2) is connected with the lower end of lubricator (1) by union nut (7), and is made described
Lower catcher (2) inwall is directly sleeved on lubricator (1) outer wall；Between lubricator (1) outer wall and lubricator (1) inwall
The first O-ring seals (4) and the second O-ring seals (5) are provided with, in the first O-ring seals (4) and the second O-ring seals
(5) be radially drilled with pressure testing hole (6) on the lower catcher (2) between, lower catcher (2) corresponding with pressure testing hole (6) outward
Action pressure-testing joint (3) is installed on wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620962624.6U CN206035440U (en) | 2016-08-28 | 2016-08-28 | Lower trapper and lubricator connection structure that possess quick pressure testing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620962624.6U CN206035440U (en) | 2016-08-28 | 2016-08-28 | Lower trapper and lubricator connection structure that possess quick pressure testing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206035440U true CN206035440U (en) | 2017-03-22 |
Family
ID=58304770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620962624.6U Active CN206035440U (en) | 2016-08-28 | 2016-08-28 | Lower trapper and lubricator connection structure that possess quick pressure testing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206035440U (en) |
-
2016
- 2016-08-28 CN CN201620962624.6U patent/CN206035440U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 721306 Gaoxin 19 Road, Baoji high tech Development Zone, Shaanxi Province Patentee after: Baoji Saifu Petroleum Machinery Co.,Ltd. Country or region after: China Address before: 721013 Nineteenth High-tech Road, Baoji High-tech Zone, Shaanxi Province Patentee before: BAOJI SAFE PETROLEUM MACHINERY Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |