CN202125283U - High-pressure filling type rotary sliding well head - Google Patents
High-pressure filling type rotary sliding well head Download PDFInfo
- Publication number
- CN202125283U CN202125283U CN2011202049688U CN201120204968U CN202125283U CN 202125283 U CN202125283 U CN 202125283U CN 2011202049688 U CN2011202049688 U CN 2011202049688U CN 201120204968 U CN201120204968 U CN 201120204968U CN 202125283 U CN202125283 U CN 202125283U
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- joint
- center tube
- plug valve
- break
- union interface
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Abstract
The utility model relates to a high-pressure filling type rotary sliding well head. The technical scheme is as follows: a turning joint is arranged at the lower end of a lifting short section; a union interface is connected to an elbow pipe of the turning joint; the lower end of the turning joint is connected with a rotary joint in which a thrust bearing is positioned; the lower end of the rotary joint is connected with a plug valve by an upper central pipe; the plug valve is connected with an oil string by a lower central pipe, wherein the union interface, the turning joint, the rotary joint, the upper central pipe, the plug valve and the lower central tube form a high-pressure sealing system; a pumper is connected with the union interface by a high-pressure hose; and high-pressure fluid enters the oil string via the high-pressure sealing system; therefore, filling construction is implemented. The beneficial effects are as follows: in the utility model, a rotation mechanism is combined with a sliding mechanism; the height of a sand-proof operating tool string can be regulated and the oil string can be rotated during construction; therefore, the high-pressure filling type rotary sliding well head is simple and easy to use, safe, reliable, capable of effectively reducing the construction cost, and is easy to be promoted and applied.
Description
Technical field:
The utility model relates to a kind of oil and gas wells in oil fields sand control and uses wellhead assembly, the rotatable slip wellhead assembly of particularly a kind of high pressure packing.
Background technology:
Along with the exploitation of oilfield, technological measures such as filling anti-sand are increasing.At present, the supporting well head of field by using is fixed, when installation, dismounting, movable tubing string inconvenience is arranged more, and workload is big, and construction cost is high, is unfavorable for The field.Need a kind of rotatable slip wellhead assembly that use the high pressure packing job site of being convenient at present, still do not have this type of wellhead assembly at present.
Summary of the invention:
The purpose of the utility model is exactly the above-mentioned defective that exists to prior art; Provide a kind of high pressure packing rotatable slip wellhead assembly; Can be applicable to the high pressure packing job site; Be simple and easy to usefulness, safe and reliable, the sand control operating tool string can carry out height and regulate and can be rotated the tubing string operation in work progress.
Its technical scheme is: mainly be made up of lifting sub, break-in joint, union interface, swivel joint, thrust bearing, upper center tube, plug valve, lower center tube, tubing string; Described lifting sub lower end is provided with the break-in joint; Break-in joint bend connects the union interface; Break-in joint lower end connects swivel joint, the built-in thrust bearing of swivel joint, and the swivel joint lower end connects plug valve through upper center tube; Described plug valve is connected with tubing string through lower center tube; Described union interface, break-in joint, swivel joint, upper center tube, plug valve, lower center tube form a high pressure sealing system; Pump truck links to each other with the union interface through high-pressure hose; High-pressure fluid gets into tubing string through the high pressure sealing system, carries out the filling construction.
The lower end of above-mentioned lower center tube has a step protruding, and the step convexity is provided with flange, and described flange and said lower center tube are through " O " RunddichtringO (14) sealing.
Wherein, lower center tube, plug valve and upper center tube can be realized rotating along axis direction through the built-in thrust bearing of said swivel joint; In addition, flange and lower center tube are through the sealing of " O " RunddichtringO, and flange does not form a fixed connection with lower center tube, and lower center tube, plug valve and upper center tube can rotate along axis direction, move vertically.
The beneficial effect of the utility model is: the utility model adopts rotating mechanism to combine slide mechanism; The sand control operating tool string can carry out height and regulate and can be rotated the tubing string operation in work progress, be simple and easy to usefulness, and is safe and reliable; Effectively reduce construction cost, be easy to apply.
Description of drawings:
Accompanying drawing 1 is the structural representation of the utility model;
Among the last figure: lifting sub 1, break-in joint 2, union interface 3, swivel joint 4, " O " RunddichtringO 5, thrust bearing 6, baffle plate 7, upper center tube 8, plug valve 9, lower center tube 10, flange 11, casing flange 12, tubing string 13, " O " RunddichtringO 14.
The specific embodiment:
In conjunction with accompanying drawing 1, the utility model is done further to describe:
The utility model mainly is made up of lifting sub 1, break-in joint 2, union interface 3, swivel joint 4, thrust bearing 6, upper center tube 8, plug valve 9, lower center tube 10, tubing string 13; Described lifting sub 1 lower end is provided with break-in joint 2; Break-in joint 2 bend connect union interface 3, and break-in joint 2 lower ends connect swivel joint 4, swivel joint 4 built-in thrust bearings 6; Swivel joint 4 lower ends connect baffle plate 7; Described swivel joint 4 endoporus are through being provided with " O " RunddichtringO 5 and upper center tube 8 sealings, and there is a step disk said upper center tube 8 upper ends, are positioned at the upper end of said thrust bearing 6; The lower end of upper center tube 8 connects plug valve 9; Described plug valve 9 is connected with tubing string 13 through lower center tube 10; Described union interface 3, break-in joint 2, swivel joint 4, upper center tube 8, plug valve 9, lower center tube 10 form a high pressure sealing system; Pump truck links to each other with union interface 3 through high-pressure hose; High-pressure fluid gets into tubing string 13 through the high pressure sealing system, carries out the filling construction.
The lower end of above-mentioned lower center tube 10 has a step protruding, and the step convexity is provided with flange 11, and described flange 11 seals through " O " RunddichtringO 14 with said lower center tube 10.
In oil gas field high pressure packing field operation, the rotatable slip wellhead assembly of high pressure packing is connected flange 11 earlier before construction with casing flange 12, and lower center tube 10 is connected with tubing string 13, and union interface 3 is connected with pump truck through high-pressure hose.Union interface 3, break-in joint 2, swivel joint 4, upper center tube 8, plug valve 9, lower center tube 10, high pressure sealing system of formation, high-pressure fluid gets into tubing string 13 through this system, carries out the filling construction, the switch of this system of plug valve control.In the work progress; Because lower center tube 10 does not form a fixed connection with flange 11; Can pass through this device of lifting sub put-on and delegated and tubing string; Simultaneously can realize that tubing string rotate along axis direction, use convenient laborsavingly that it is more safe and reliable to work through the built-in thrust bearing of swivel joint.
The foregoing description of the utility model, only be for explain clearly that the utility model does for example, and be not to be restriction to the embodiment of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, obviously can make other multi-form variation or change, need not here also can't give exhaustive to all embodiments.And these conspicuous variations or change still are among the protection domain of the utility model.
Claims (2)
1. rotatable slip wellhead assembly of high pressure packing; It is characterized in that: mainly form by lifting sub (1), break-in joint (2), union interface (3), swivel joint (4), thrust bearing (6), upper center tube (8), plug valve (9), lower center tube (10), tubing string (13); Described lifting sub (1) lower end is provided with break-in joint (2); Break-in joint (2) bend connects union interface (3); Break-in joint (2) lower end connects swivel joint (4), the built-in thrust bearing of swivel joint (4) (6), and swivel joint (4) lower end connects plug valve (9) through upper center tube (8); Described plug valve (9) is connected with tubing string (13) through lower center tube (10); Described union interface (3), break-in joint (2), swivel joint (4), upper center tube (8), plug valve (9), lower center tube (10) form a high pressure sealing system; Pump truck links to each other with union interface (3) through high-pressure hose; High-pressure fluid gets into tubing string (13) through the high pressure sealing system, carries out the filling construction.
2. the rotatable slip wellhead assembly of high pressure packing according to claim 1; It is characterized in that: the lower end of said lower center tube (10) has a step protruding; The step convexity is provided with flange (11), and described flange (11) seals through " O " RunddichtringO (14) with said lower center tube (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202049688U CN202125283U (en) | 2011-06-17 | 2011-06-17 | High-pressure filling type rotary sliding well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202049688U CN202125283U (en) | 2011-06-17 | 2011-06-17 | High-pressure filling type rotary sliding well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202125283U true CN202125283U (en) | 2012-01-25 |
Family
ID=45488354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202049688U Expired - Lifetime CN202125283U (en) | 2011-06-17 | 2011-06-17 | High-pressure filling type rotary sliding well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202125283U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050218A (en) * | 2016-07-15 | 2016-10-26 | 中国石油天然气集团公司 | Annulus testing well head device for operation under pressure |
| CN108691566A (en) * | 2017-04-11 | 2018-10-23 | 中国石油化工股份有限公司 | Sand control pack integrated well head device and operational method |
| CN111236886A (en) * | 2020-02-10 | 2020-06-05 | 山东博赛特石油技术有限公司 | Floating type rotary sliding sand prevention wellhead device and method |
-
2011
- 2011-06-17 CN CN2011202049688U patent/CN202125283U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050218A (en) * | 2016-07-15 | 2016-10-26 | 中国石油天然气集团公司 | Annulus testing well head device for operation under pressure |
| CN106050218B (en) * | 2016-07-15 | 2023-04-07 | 中国石油天然气集团公司 | Annulus testing wellhead device for operation under pressure |
| CN108691566A (en) * | 2017-04-11 | 2018-10-23 | 中国石油化工股份有限公司 | Sand control pack integrated well head device and operational method |
| CN111236886A (en) * | 2020-02-10 | 2020-06-05 | 山东博赛特石油技术有限公司 | Floating type rotary sliding sand prevention wellhead device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120125 |
|
| CX01 | Expiry of patent term |