CN205477507U - Dabber style third grade hangs super high -tension bushing head - Google Patents
Dabber style third grade hangs super high -tension bushing head Download PDFInfo
- Publication number
- CN205477507U CN205477507U CN201620175994.5U CN201620175994U CN205477507U CN 205477507 U CN205477507 U CN 205477507U CN 201620175994 U CN201620175994 U CN 201620175994U CN 205477507 U CN205477507 U CN 205477507U
- Authority
- CN
- China
- Prior art keywords
- casing head
- level
- head spool
- spool
- mandrel
- Prior art date
- 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.)
- Active
Links
Abstract
The utility model discloses a dabber style third grade hangs super high -tension bushing head, including the bracket, from the bottom up has set gradually first order casing head spool, second level casing head spool and third level casing head spool on the bracket, and every grade of casing head spool inner chamber is provided with one -level mandrel hanger, every grade of casing head spool all has a jackscrew passageway along radially opening in going up the flange, installs a set of jackscrew subassembly in this three jackscrew passageway respectively, have two to annotate fat pressure testing holes along radially opening in the casing head spool lower flange of the second level, it has to annotate a fat pressure testing hole to follow radial division in the third level casing head spool lower flange, and a set of notes fat pressure testing valve is installed respectively to the port outside this three notes fat pressure testing hole. The utility model has the advantages of simple structure, the reliable operation.
Description
Technical field
This utility model belongs to oil drilling and extracting equipment technical field, relates to a kind of mandrel type three grades and hangs superelevation
Gland tube head.
Background technology
Oil recovery (gas) wellhead assembly of complete set is mainly set three by casing head, tubing head and oil recovery (gas)
Major part composition, is arranged on casing head composition wellhead for drilling by preventer during drilling well.Wherein, set
The effect of tube head is to connect surface pipe, and hangs the multilayer sleeve in well, sleeve pipe by casing hanger
The primary seal of hanger and secondary sealing, flange gasket ring one airtight annular space of composition, filled by well head
The pressure testing hole put is to detect primary seal, secondary sealing and the sealing property of flange gasket ring, to ensureing well head
Equipment safety uses most important.But, existing high pressure, high sour gas well casing head rubber seal longevity
Order short, safety coefficient is low so that service life of equipment is long, maintenance workload big, have impact on work effect
Rate.
Utility model content
The purpose of this utility model is to provide a kind of mandrel type three grades and hangs superhigh pressure drivepipe head, solves existing
Have high pressure, the high sour gas well casing head rubber seal life-span is short, safety coefficient is low problem.
This utility model be employed technical scheme comprise that, a kind of mandrel type three grades hangs superhigh pressure drivepipe head,
Including bracket, bracket is disposed with first order casing head spool, second level casing head from top to bottom
Four-way and third level casing head spool, pass through between first order casing head spool and second level casing head spool
One circle bolt assembly is fixing to be connected, by another between second level casing head spool and third level casing head spool
An outer circle bolt assembly is fixing to be connected；First order casing head spool inner chamber is provided with first order mandrel and hangs
Device, second level casing head spool inner chamber is provided with second level mandrel hanger, in third level casing head spool
Chamber is provided with third level mandrel hanger；
In first order casing head spool, second level casing head spool and third level casing head spool upper flange all
Radially have a jackscrew passage, these three jackscrew passages are separately installed with one group of jackscrew assembly；The
Two grades of casing head spool lower flanges radially have two greasing pressure testing holes, under third level casing head spool
Radially having a greasing pressure testing hole in flange, these three greasing pressure testing outer end of hole mouths are separately installed with one
Group greasing pressure-testing valve.
Mandrel type of the present utility model three grades hangs superhigh pressure drivepipe head, is further characterized in that:
The bypass of casing head spools at different levels is separately installed with manual platform gate valve one or the hands of band effort-saving mechanism
Dynamic flat gate valve two, the straight-through termination of casing head spools at different levels connects instrument flange, and instrument flange is radially
Being connected with high-pressure manometer by high-pressure stop valve, pressure ga(u)ge damper, instrument flange outer face connects to be had
Screwed flange, in screwed flange outer face, axle center hole is provided with plug.
Gasket ring groove between first order casing head spool and second level casing head spool contact surface is provided with
One group of gasket ring, the gasket ring groove between second level casing head spool and third level casing head spool contact surface
In be provided with another group gasket ring；
One group of X-type gold is installed between mandrel hangers at different levels and this grade of corresponding casing head spool inwall
Belong to and sealing and one group of FS rubber seal；
Install between second level casing head spool lower flange surface of internal cavity and second level mandrel hanger simultaneously
There are BT rubber seal and X+U bimetallic (spring cone) seal assembly；Third level casing head spool lower flange inner chamber table
Another group BT rubber seal and X+U bimetallic it is simultaneously installed with between face and third level mandrel hanger
Black box.
The beneficial effects of the utility model are, outside the employing of skim-coat sleeve pipe is threaded, sleeve pipes at different levels hang
Employing mandrel type hangs.Every grade of casing head spool uses Flange joint with upper level casing head spool.Mandrel
Formula casing hanger seat is hung and among casing head spool inner chamber, primary seal is X-type metal sealing, secondary sealing
For FS type rubber seal, sleeve pipe deadweight and jackscrew extruding is utilized to excite metal sealing.In order to increase further
Add safety coefficient, the mandrel type casing hanger neck seal will installed at casing head spool lower flanges at different levels
Part version is designed as X+U type bimetallic (spring cone) seal and adds BT type rubber sealing structure.Meanwhile, casing head
Four-way lower flange is designed with twice pressure testing mouth, lay respectively at hanger neck seal and hanger primary seal it
Between and between hanger cervical region metal sealing and BT seal, lower flange another side is provided with injection hole.
By improving casing hanger major and minor sealing structure, use metal sealing and rubber ring combination sealing form,
Rely on sleeve pipe deadweight and the common effect of jackscrew extruding, make the conical surface and this body cone of casing head of metal o-ring
Fit tightly, thus excite sealing, overcome high pressure, high temperature operating mode under rubber seal the oldest
Change, there is the shortcomings such as gas leakage, the life-span is short, safety coefficient is low, meet the Production requirement of high-pressure gas well.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model；
Fig. 2 is sealed structural representation of the present utility model.
In figure, 1. third level mandrel hanger, 2. jackscrew assembly, 3. third level casing head spool, the most manual
Flat gate valve one, 5. high-pressure manometer, 6. instrument flange, 7. screwed flange, 8. plug, 9. bolt assembly,
10. pressure ga(u)ge damper, 11. high-pressure stop valves, 12. second level mandrel hangers, 13. second level casing heads
Four-way, 14. first order mandrel hangers, 15. first order casing head spools, 16. brackets, 17. greasing pressure testings
Valve, 18. manual platform gate valves two, 19.X+U bimetallic (spring cone) seal assembly, 20.FS rubber seal, 21.X
Type metal sealing, 22. gasket rings, 23.BT rubber seal.
Detailed description of the invention
With detailed description of the invention, this utility model is described in detail below in conjunction with the accompanying drawings.
With reference to Fig. 1, structure of the present utility model is, including bearing all tubing strings and the torr of casing head weight
Frame 16, is disposed with first order casing head spool 15, second level sleeve pipe on bracket 16 from top to bottom
Head four-way 13 and third level casing head spool 3, first order casing head spool 15 and second level casing head four
Connect by a circle bolt assembly 9 is fixing between logical 13, second level casing head spool 13 and third level set
By an other fixing connection of circle bolt assembly 9 between tube head four-way 3；First order casing head spool 15
Inner chamber is provided with first order mandrel hanger 14, and second level casing head spool 13 inner chamber is provided with the second level
Mandrel hanger 12, third level casing head spool 3 inner chamber is provided with third level mandrel hanger 1；
On first order casing head spool 15, second level casing head spool 13 and third level casing head spool 3
Flange the most radially has a jackscrew passage, these three jackscrew passages are separately installed with one group of jackscrew
Assembly 2；Second level casing head spool 13 lower flange radially has two greasing pressure testing holes, the third level
Casing head spool 3 lower flange radially has a greasing pressure testing hole, these three greasing pressure testing outer end of hole
Mouth is separately installed with one group of greasing pressure-testing valve 17；
The bypass of above-mentioned casing head spools at different levels is separately installed with the manual platform gate valve of band effort-saving mechanism
The manual platform gate valve 2 18 of one 4 or common, the straight-through termination of casing head spools at different levels connects instrument method
Blue 6, instrument flange 6 is radial through high-pressure stop valve 11, pressure ga(u)ge damper 10 and high-pressure manometer 5
Connection, instrument flange 6 outer face connects screwed flange 7, pacifies at screwed flange 7 outer face axle center hole
Equipped with plug 8.
With reference to Fig. 2, between first order casing head spool 15 and second level casing head spool 13 contact surface
Gasket ring groove is provided with one group of gasket ring 22, second level casing head spool 13 and third level casing head four
Gasket ring groove between logical 3 contact surfaces is provided with another group gasket ring 22；
One group of X-type gold is installed between mandrel hangers at different levels and this grade of corresponding casing head spool inwall
Belong to sealing 21 and one group of FS rubber seal 20；
Between second level casing head spool 13 lower flange surface of internal cavity and second level mandrel hanger 12 simultaneously
BT rubber seal 23 and X+U bimetallic (spring cone) seal assembly 19 is installed；Third level casing head spool 3
Another group BT rubber seal it is simultaneously installed with between lower flange surface of internal cavity and third level mandrel hanger 1
Circle 23 and X+U bimetallic (spring cone) seal assemblies 19.
Operation principle of the present utility model is, gas well surface pipe is by screw thread and first order casing head assembly
Connecting, first order mandrel hanger 14 is arranged among first order casing head assembly inner chamber, utilizes sleeve pipe
Deadweight and jackscrew assembly 2 extruding excite X-type metal sealing 21 to work with the casing head bore seal conical surface.
Meanwhile, first order mandrel type casing hanger 14 cervical region X+U bimetallic (spring cone) seal assembly 19 and BT rubber
Sealing ring 23 is arranged among the pullover assembly lower lumen of the second level, utilizes two-stage casing head assembly to connect
The pretightning force that applies when installing of bolt assembly 9 excite metal sealing.After installation, utilize greasing mouth
To BT type rubber seal greasing, then by the twice greasing pressure testing hole pair of second level casing head assembly
First order mandrel type hanger 14 and gasket ring 22 and hanger cervical region X+U metal sealing assembly 19
The closing annulus test formed, detection seals the most effective.Second level casing head assembly and third level sleeve pipe
Head component mounting step is identical.
This utility model, by improving casing hanger major and minor sealing structure, significantly increases this device
Safety coefficient.Casing hanger uses metal sealing and rubber ring combination sealing form, relies on sleeve pipe deadweight
Effect common with jackscrew extruding, makes the conical surface of metal o-ring closely paste with this body cone of casing head spool
Close, thus excite sealing, overcome high pressure, high temperature operating mode under rubber seal the most aging, deposit
In gas leakage, the shortcoming such as the life-span is short, safety coefficient is low, thus meet the Production requirement of high-pressure gas well, it is achieved
Corrosion resistance is strong, it is reliable, high pressure resistant to seal, service life is long, improve the safety of oil-gas mining.
Claims (3)
1. three grades of suspension superhigh pressure drivepipe heads of a mandrel type, it is characterised in that: include bracket (16),
First order casing head spool (15), second level casing head it is disposed with from top to bottom on bracket (16)
Four-way (13) and third level casing head spool (3), first order casing head spool (15) overlaps with the second level
Connect by circle bolt assembly (9) is fixing between tube head four-way (13), second level casing head spool
(13) and fixed even by other circle bolt assembly (9) between third level casing head spool (3)
Connect；First order casing head spool (15) inner chamber is provided with first order mandrel hanger (14), the second level
Casing head spool (13) inner chamber is provided with second level mandrel hanger (12), third level casing head spool
(3) inner chamber is provided with third level mandrel hanger (1)；
First order casing head spool (15), second level casing head spool (13) and third level casing head four
Logical (3) upper flange the most radially has a jackscrew passage, these three jackscrew passages are respectively mounted
There is one group of jackscrew assembly (2)；Second level casing head spool (13) lower flange radially has two notes
Fat pressure testing hole, radially has a greasing pressure testing hole in third level casing head spool (3) lower flange,
These three greasing pressure testing outer end of hole mouths are separately installed with one group of greasing pressure-testing valve (17).
Mandrel type the most according to claim 1 three grades hangs superhigh pressure drivepipe head, it is characterised in that:
The bypass of described casing head spools at different levels is separately installed with the manual platform gate valve one (4) of band effort-saving mechanism
Or manual platform gate valve two (18), the straight-through termination of casing head spools at different levels connects instrument flange (6),
Instrument flange (6) is radial through high-pressure stop valve (11), pressure ga(u)ge damper (10) and high-pressure
Table (5) connects, and instrument flange (6) outer face connects has screwed flange (7), in screwed flange (7)
Outer face axle center hole is provided with plug (8).
Mandrel type the most according to claim 1 three grades hangs superhigh pressure drivepipe head, it is characterised in that:
Pad between described first order casing head spool (15) and second level casing head spool (13) contact surface
Annular groove is provided with one group of gasket ring (22), second level casing head spool (13) and third level sleeve pipe
Gasket ring groove between head four-way (3) contact surface is provided with another group gasket ring (22)；
One group of X-type gold is installed between mandrel hangers at different levels and this grade of corresponding casing head spool inwall
Belong to and seal (21) and one group of FS rubber seal (20)；
Second level casing head spool (13) lower flange surface of internal cavity and second level mandrel hanger (12) it
Between be simultaneously installed with BT rubber seal (23) and X+U bimetallic (spring cone) seal assembly (19)；The third level
It is simultaneously installed with between casing head spool (3) lower flange surface of internal cavity and third level mandrel hanger (1)
Another group BT rubber seal (23) and X+U bimetallic (spring cone) seal assembly (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620175994.5U CN205477507U (en) | 2016-03-08 | 2016-03-08 | Dabber style third grade hangs super high -tension bushing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620175994.5U CN205477507U (en) | 2016-03-08 | 2016-03-08 | Dabber style third grade hangs super high -tension bushing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477507U true CN205477507U (en) | 2016-08-17 |
Family
ID=56655947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620175994.5U Active CN205477507U (en) | 2016-03-08 | 2016-03-08 | Dabber style third grade hangs super high -tension bushing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477507U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533206A (en) * | 2018-05-14 | 2018-09-14 | 中国石油集团西部钻探工程有限公司 | Two-stage casing-joint |
| CN112878942A (en) * | 2021-02-01 | 2021-06-01 | 德州联合石油科技股份有限公司 | Self-excitation all-metal sealing high-pressure wellhead device |
| CN114112235A (en) * | 2020-08-31 | 2022-03-01 | 中国石油天然气股份有限公司 | Mandrel type casing hanger testing device |
| CN115263227A (en) * | 2022-08-26 | 2022-11-01 | 江苏腾龙石化机械有限公司 | Mandrel type three-stage suspension ultrahigh-pressure casing head and assembling device thereof |
-
2016
- 2016-03-08 CN CN201620175994.5U patent/CN205477507U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533206A (en) * | 2018-05-14 | 2018-09-14 | 中国石油集团西部钻探工程有限公司 | Two-stage casing-joint |
| CN108533206B (en) * | 2018-05-14 | 2023-07-07 | 中国石油天然气集团有限公司 | Double-stage casing head |
| CN114112235A (en) * | 2020-08-31 | 2022-03-01 | 中国石油天然气股份有限公司 | Mandrel type casing hanger testing device |
| CN112878942A (en) * | 2021-02-01 | 2021-06-01 | 德州联合石油科技股份有限公司 | Self-excitation all-metal sealing high-pressure wellhead device |
| CN112878942B (en) * | 2021-02-01 | 2021-09-21 | 德州联合石油科技股份有限公司 | Self-excitation all-metal sealing high-pressure wellhead device |
| CN115263227A (en) * | 2022-08-26 | 2022-11-01 | 江苏腾龙石化机械有限公司 | Mandrel type three-stage suspension ultrahigh-pressure casing head and assembling device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205477507U (en) | Dabber style third grade hangs super high -tension bushing head | |
| CN101644149B (en) | Integral type level oil extraction wellhead equipment | |
| CN202788725U (en) | Metal hard sealing oil tube head | |
| CN204060602U (en) | A kind of bimetallic (spring cone) seal formula casing head | |
| CN104499993B (en) | Dual-flap-valve type downhole safety valve | |
| CN107489394B (en) | Open hole packer three-ellipse experimental device and method | |
| CN207686653U (en) | All-metal sealing mandrel type casing hanger | |
| CN202745789U (en) | Wellhead dual-seal coiled tubing hanging device | |
| CN111827897A (en) | Oil pipe lowering device suitable for high-pressure gas well | |
| CN103216209B (en) | Packer in tubing and casing sealing propertytest pipe | |
| CN203891837U (en) | Large-diameter high-pressure oil and gas recovery wellhead device | |
| CN201486503U (en) | Integrated type horizontal oil extraction wellhead device | |
| CN208749323U (en) | A kind of super-pressure anti-pricked anti-corrosion Integral type well-mouth device | |
| CN208473761U (en) | A kind of surface pipe suspension arrangement | |
| CN203188963U (en) | In-pipe packer for oil drivepipe leakproofness detection | |
| CN206429231U (en) | Fireflood igniting wellhead assembly | |
| CN108019179A (en) | A kind of metal sealing component and boll-weevil hanger | |
| CN205477497U (en) | Well head open type sealing ring seat circle | |
| CN212428689U (en) | Speed tubular column sealing and hanging device with auxiliary sealing function | |
| CN111520099A (en) | Split type large-traffic casing head of oil gas well | |
| CN201991476U (en) | Double-tubular-column suspension wellhead device | |
| CN205778689U (en) | The casing head of a kind of band VR screwed plug, it is provided with the lower oil tube equipment of casing head | |
| CN106014323B (en) | Lower oil tube equipment equipped with hanger | |
| CN206785345U (en) | A kind of testing pressure of well head oil pipe blocking device | |
| CN201778733U (en) | Hydraulic penetration device between subsea production tree and tubing hanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |