CN103924964B - A kind of No. 1 main valve pressure test plug of production tree - Google Patents
A kind of No. 1 main valve pressure test plug of production tree Download PDFInfo
- Publication number
- CN103924964B CN103924964B CN201410189354.5A CN201410189354A CN103924964B CN 103924964 B CN103924964 B CN 103924964B CN 201410189354 A CN201410189354 A CN 201410189354A CN 103924964 B CN103924964 B CN 103924964B
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- test plug
- pressure test
- production tree
- pressure
- plug body
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Abstract
The present invention relates to a kind of No. 1 main valve pressure test plug of production tree, it, which solves pressure test plug present in prior art, can not carry out the problem of No. 1 main valve (6) of production tree is with bottom flange (5) junction sealing detection.Its technical scheme is：Pressure test plug body (4) hypomere periphery is provided with and cap (1), it is respectively arranged with one group of axle p-type sealing ring (2) at two radial direction through hole of pressure test plug body (4) hypomere, two groups of axles are with being provided with spacer ring (3) between p-type sealing ring (2)；P-type sealing ring (2) and bottom flange (5) latus rectum position fitted seal；No. 1 valve (6) of bottom flange (5) and production tree is coordinated using gasket ring.Apparatus of the present invention realize the pressure testing test problems to whole production tree, and efficiently solve the sealing of production tree bottom flange connections can not test problems；Pressure test plug sealed using axle with p-type sealing ring (2) to bottom flange (5) latus rectum position, it is to avoid conventional O-ring seal is easily by cutting problem；And then the pressure testing of each connecting portion of production tree is realized, and easy to operate, simple in construction, dependable performance.
Description
Technical field
The invention belongs to technical field of petroleum machinery, it is related to a kind of No. 1 main valve pressure test plug of production tree.
Background technology
Production tree needs to carry out pressure testing after installing at the scene, to ensure the safety of production tree in process of production.Once go out
Existing production tree is partly or wholly leaked, and whole Oil/gas Well will be caused out of hand, greatly well control safety problem is caused.
Each connecting portion sealed reliable of detection oil and gas extraction wellhead is to ensure that whole wellhead assembly safe handling is most important
The step of.At present, the most frequently used pressure test plug seal member of the on-site voltage-measuring of production tree is to be located at tubing head four-way (or casing head four
It is logical) at step, i.e., it is consistent with hanger sealing station；This pressure testing mode can complete No. 1 main valve above valve and each connects
The pressure testing at place is connect, whether design experiment requirement is reached with the bearing capacity for examining No. 1 main valve above section of production tree；But exist
Problem is can not to use the sealing property of conventional pressure test plug detection No. 1 main valve of production tree and production tree bottom flange connections, it is impossible to
The pressure testing to No. 1 main valve and production tree bottom flange link position is realized, this is that safety in production in the future and well control leave one
Great potential safety hazard.
The content of the invention
The purpose of the present invention is：In order to solve pressure test plug present in prior art can not carry out No. 1 main valve of production tree with
The problem of production tree bottom flange connections sealing detection, spy provides a kind of No. 1 main valve pressure test plug of production tree, it is possible to achieve to whole
The sealing detection at each position of production tree.
To achieve these goals, the present invention uses following technical scheme：A kind of No. 1 main valve pressure test plug of production tree, it is special
Levy and be：Pressure test plug body hypomere periphery is provided with and cap, is respectively arranged with two radial direction through hole of pressure test plug body hypomere
One group of axle p-type sealing ring, two groups of axles are provided with spacer ring between p-type sealing ring；Pressure test plug body is connected with connecting rod, armrest
The sealing station of wheel regulation pressure test plug body；Pressure testing sealing position is in axle p-type sealing ring and bottom flange latus rectum matching part；
Gasket ring is installed and coordinated with bottom flange in No. 1 valve lower end of production tree.
The beneficial effects of the invention are as follows：(1) the pressure test plug convenient disassembly, simple in construction, easy to operate, dependable performance；(2)
The pressure test plug fundamentally solves the problem of live oil and gas wellhead device has pressure testing blind area, realizes non-blind area pressure testing.
Brief description of the drawings
Fig. 1 is the structural representation of No. 1 main valve pressure test plug of production tree of the present invention.
Fig. 2 is No. 1 main valve pressure test plug of production tree and No. 1 valve of production tree and production tree bottom flange assembling schematic diagram.
Fig. 3 is No. 1 main valve pressure test plug sealing enlarged drawing of production tree.
Fig. 4 is paraffin valve upper end sealing structure enlarged drawing.
In figure：1. and cap, 2. axles p-type sealing ring, 3. spacer rings, 4. pressure test plug bodies, 5. bottom flanges, 6. production trees No. 1
Main valve, 7. paraffin valves, 8.O type sealing rings, 9. connecting rods, 10. blind flanges, 11. connecting bolts, 12. seal assemblies, 13. pressure caps,
14. bearing, 15. bearing blocks, 16. copper nuts, 17. greasing joints, 18. handwheels, 19. pressure-testing valves.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the architectural feature of No. 1 main valve pressure test plug of production tree is in the present invention：Pressure testing
Plug body 4 hypomere periphery is provided with and cap 1, and one group of axle P is respectively arranged with pressure test plug body 4 hypomere, two radial direction through hole
Type sealing ring 2, two groups of axles are with being provided with spacer ring 3 between p-type sealing ring 2；P-type sealing ring 2 coordinates close with the latus rectum position of bottom flange 5
Envelope；No. 1 main valve lower end of production tree is coordinated using gasket ring with bottom flange 5, and cap 1 is used to support and block axis is sealed with p-type
Circle 2 and spacer ring 3 come off.
Connected between pressure test plug body 4 and connecting rod 9 using trapezoidal thread, and set O-ring seal 8 to seal；Paraffin valve 7
It is connected with blind flange 10 with bolt 11, pressure-testing valve 19 is provided with blind flange 10.
Connecting rod 9 has seal assembly 12 by cylindrical, and the pressured compression seal of cap 13 of seal assembly 12, the upper end of pressure cap 13 is installed
Having be provided with bearing block 15 outside bearing 14, bearing 14；Copper nut 16 is installed, copper nut 16 is used with connecting rod 9 in bearing 14
Ladder lock is connected, and the upper end of connecting rod 9 is connected with handwheel 18, and the regulation of handwheel 18 connecting rod 9 makes its pressure test plug body 4 reach sealing position
Put, the top of connecting rod 18 is connected with greasing joint 17.
From the greasing of greasing joint 17, when reaching pressure test plug 4 inner chamber of body by passage, twice axle P is excited using fat pressure
Type sealing ring 2 is realized to be sealed with the latus rectum of bottom flange 5.When injecting hydraulic fluid from pressure-testing valve 19, full of the top of pressure test plug body 4
With by test specimen space when, just can carry out No. 1 main valve of production tree and production tree bottom flange connections sealing detection.When pressure testing terminates
Afterwards, pressure test plug inner chamber pressure release, you can release the sealing of p-type sealing ring 2 of twice axle, be easily removed the pressure test plug body 4.
The operation principle of apparatus of the present invention is：In pressure testing operation, pressure test plug body 4 and sealing device seat are first hung over into bottom
The latus rectum position of flange 5, can adjust the axial location of pressure test plug p-type sealing ring 2, it is ensured that p-type sealing ring 2 is located at bottom by handwheel 18
The upper end latus rectum position of flange 5.Then, from the greasing into the cavity of pressure test plug body 4 of greasing joint 17, two in sealing device are excited
Road axle p-type sealing ring 2 is radially expanded, and is sealed with being formed at the latus rectum of bottom flange 5, so as to realize pressure test plug body 4 and production tree
Bottom flange 5 is effectively sealed.Finally, when being full of 4 upper annulus volume of pressure test plug body from the injection hydraulic fluid of pressure-testing valve 19, just can
No. 1 main valve 6 of production tree and the junction sealing detection of bottom flange 5 is carried out in accordance with regulations.
Apparatus of the present invention, solve the sealing property test problems of No. 1 main valve 6 of production tree and the junction of bottom flange 5, from root
The problem of live wellhead assembly has pressure testing blind area is solved on this, and then ensure that the safe handling of wellhead assembly；Try simultaneously
The structure of p-type sealing ring 2 is used in tamponade design, the problem of O-ring seal is easily cut is solved；It is simple to operate, dependable performance,
It is practical.
Claims (2)
1. a kind of No. 1 main valve pressure test plug of production tree, it is characterised in that：Including pressure test plug body（4）, pressure test plug body（4）Under
One group of axle p-type sealing ring is respectively arranged with two radial direction through hole of section（2）, axle p-type sealing ring（2）Between be provided with spacer ring
（3）, pressure test plug body（4）Hypomere periphery be provided with and cap（1）, and cap（1）For supporting simultaneously block axis p-type sealing ring
（2）And spacer ring（3）From pressure test plug body（4）On come off；Pressure test plug body（4）Upper end be connected with connecting rod（9）, the connection
Bar（9）Upper end pass blind flange（10）And it is connected with handwheel（18）, connecting rod（9）The top be connected with greasing joint
（17）, handwheel（18）Adjust connecting rod（9）So that pressure test plug body（4）On axle p-type sealing ring（2）Move to be connected to and adopt
Oil No. 1 main valve of tree（6）The bottom flange of lower end（5）Upper end latus rectum position, and by greasing joint（17）The fat pressure of greasing swashs
Send out twice axle p-type sealing ring（2）Realize and bottom flange（5）Latus rectum sealing；The blind flange（10）On be connected with pressure-testing valve
（19）, pressure-testing valve（19）Inject hydraulic fluid and be full of pressure test plug body（4）Upper, annular volume when production tree 1 is carried out in accordance with regulations
Number main valve（6）With bottom flange（5）Junction sealing detection.
2. No. 1 main valve pressure test plug of a kind of production tree according to claim 1, it is characterised in that：Pressure test plug body（4）With connecting
Extension bar（9）Between using trapezoidal thread connection, and O-ring seal is set（8）Realize sealing, blind flange（10）Pass through connecting bolt
（11）It is connected with paraffin valve（7）, connecting rod（9）There is seal assembly by cylindrical（12）, seal assembly（12）Pressured cap（13）Pressure
Contracting sealing, pressure cap（13）Upper end is provided with bearing（14）, bearing（14）Bearing block is installed outside（15）；Bearing（14）Inside it is provided with
Copper nut（16）, copper nut（16）With connecting rod（9）Connected using ladder lock, handwheel（18）Installed in copper nut（16）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189354.5A CN103924964B (en) | 2014-05-07 | 2014-05-07 | A kind of No. 1 main valve pressure test plug of production tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189354.5A CN103924964B (en) | 2014-05-07 | 2014-05-07 | A kind of No. 1 main valve pressure test plug of production tree |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103924964A CN103924964A (en) | 2014-07-16 |
| CN103924964B true CN103924964B (en) | 2017-07-14 |
Family
ID=51143330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410189354.5A Expired - Fee Related CN103924964B (en) | 2014-05-07 | 2014-05-07 | A kind of No. 1 main valve pressure test plug of production tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103924964B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB855053A (en) * | 1958-08-18 | 1960-11-30 | Oil Ct Tool Company | Integral well head unit and method of fabricating the same |
| CN202866733U (en) * | 2012-11-09 | 2013-04-10 | 王希和 | Novel well repair seal device for oil field |
| CN203272793U (en) * | 2013-05-07 | 2013-11-06 | 宝鸡石油机械有限责任公司 | P-type seal ring for hydraulic shaft |
| CN203296738U (en) * | 2013-05-21 | 2013-11-20 | 宝鸡石油机械有限责任公司 | Wellhead pressure test plug |
| CN203403852U (en) * | 2013-08-12 | 2014-01-22 | 中国石油化工股份有限公司 | Integrated type first main valve Christmas tree |
-
2014
- 2014-05-07 CN CN201410189354.5A patent/CN103924964B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB855053A (en) * | 1958-08-18 | 1960-11-30 | Oil Ct Tool Company | Integral well head unit and method of fabricating the same |
| CN202866733U (en) * | 2012-11-09 | 2013-04-10 | 王希和 | Novel well repair seal device for oil field |
| CN203272793U (en) * | 2013-05-07 | 2013-11-06 | 宝鸡石油机械有限责任公司 | P-type seal ring for hydraulic shaft |
| CN203296738U (en) * | 2013-05-21 | 2013-11-20 | 宝鸡石油机械有限责任公司 | Wellhead pressure test plug |
| CN203403852U (en) * | 2013-08-12 | 2014-01-22 | 中国石油化工股份有限公司 | Integrated type first main valve Christmas tree |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103924964A (en) | 2014-07-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee |