CN201802344U - High-temperature-resistant double-pipe operation blowout preventer - Google Patents
High-temperature-resistant double-pipe operation blowout preventer Download PDFInfo
- Publication number
- CN201802344U CN201802344U CN2010205004063U CN201020500406U CN201802344U CN 201802344 U CN201802344 U CN 201802344U CN 2010205004063 U CN2010205004063 U CN 2010205004063U CN 201020500406 U CN201020500406 U CN 201020500406U CN 201802344 U CN201802344 U CN 201802344U
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- China
- Prior art keywords
- flashboard
- oil
- oil pipe
- housing
- high temperature
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 210000000664 rectum Anatomy 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000003870 refractory metal Substances 0.000 claims description 2
- 239000003129 oil well Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 4
- 238000010793 Steam injection (oil industry) Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Abstract
The utility model relates to a well accuse device, especially a high temperature resistant double-barrelled operation preventer that is used for oil development and borehole operation in-process, include: the locking device comprises a locking screw rod 1, a pressing cap 2, an inner core 3, a side door 4, a bolt 5, a shell 6, a gate plate 7 with a centralizing wedge block, rubber 8, a main drift diameter 9 and a concave gate plate 10; the utility model adopts the concave structure designed by the flashboard on one side, and two semicircular oil pipe grooves are respectively arranged at the front end of the concave structure of the flashboard; the flashboard at the other side is designed into an upper flashboard and a lower flashboard which are occluded with the concave flashboard, when the flashboards at the two sides are closed, the two oil pipes are separated by the wedge-shaped structure of the flashboards and respectively enter the two oil pipe grooves, and the two semicircular oil pipe grooves at the front ends of the flashboards at the two sides are embraced into two circles, so that the two oil pipes can be embraced at the same time, and the sealing of an oil well mouth is realized. The utility model has the advantages of reasonable design, easily make, the operation of being convenient for, prevent spouting the problem when having solved the operation of two oil pipe high temperature steam injection well effectively.
Description
Technical field:
The utility model relates to a kind of well control device that oil exploitation and underground work process are used, particularly a kind of high temperature resistant two-tube working preventer of being used for.
Background technology:
For preventing the generation of blowout, well kick accident, guarantee to recover the oil and the safety of underground work is carried out, in the oil field operation process, must use preventer to seal well head, with the safety of assurance operating personnel and equipment.The preventer that adopt in present oil field is generally single ram type perventer, it mainly comprises compositions such as housing and flashboard, and the two side of housing offers the flashboard chamber symmetrically, and two shoe brake plates are placed in the flashboard chamber, flashboard is by the control of manual rotating threaded shaft, the closure that realizes flashboard with separate; But have only an oil pipe through hole on its flashboard, only be suitable for the capping operation of single oil pipe oil well.Continuous development along with two-tube steam injection technology, it is more and more that double tube is annotated the vapour well, be to adopt two oil pipes to annotate vapour in the well head simultaneously, existing like this single ram type perventer just can not satisfy the blowout prevention needs that double tube is annotated the underground work of vapour well, in case notes vapour well accident occurs and will be difficult to control, thereby causes enormous economic loss.
Summary of the invention:
The purpose of this utility model is to provide a kind of high temperature resistant two-tube working preventer.It can solve the underground work safety requirements of two-tube notes vapour well effectively, guarantees the safety of operation process.Execute-in-place is simple, has guaranteed the ordinary production of oil well.
The utility model mainly comprises housing, flashboard and leading screw; The middle part of housing offers the main channel, and two shoe brake plates are installed in respectively in the flashboard chamber of housing both sides, control the open and close of flashboard by leading screw; Sealing and top sealing before the front end of flashboard and upper surface are arranged with, it is characterized in that: a side flashboard is designed to " recessed " shape structure, so just make this preventer have double containment, offer two semicircular oil pipe grooves respectively at the front end of flashboard " recessed " shape structure; The opposite side flashboard is designed to three up and down, with the interlock of " recessed " shape flashboard, front end at these three flashboards also offers two semicircle oil pipe grooves respectively, protrude forward two middle coupling parts of oil pipe groove on first flashboard, form wedge shape, this structure in the middle of can inserting two oil pipes when flashboard is closed is separated it.What this design both can realize oil pipe partly seals function, can realize not having the full envelope function of oil pipe again.When the both sides flashboard is closed, the wedge structure of flashboard makes two oil pipes separately, enter respectively in two oil pipe grooves, the flashboard of " recessed " shape structure embeds in the opposite side flashboard, two semicircle oil pipe groove obvolvents of both sides flashboard front end become two circles, can embrace two oil pipes simultaneously, realize the sealing of well mouth of oil well.When in oil well, not having oil pipe, rotation both sides leading screw, the flashboard of " recessed " shape structure can embed fully in the opposite side flashboard and seal well head.
The utility model is owing to adopt a side flashboard to be designed to " recessed " shape structure, offers two semicircular oil pipe grooves respectively at the front end of flashboard " recessed " shape structure; The opposite side flashboard is designed to three up and down, with the interlock of " recessed " shape flashboard, when the both sides flashboard is closed, the wedge structure of flashboard makes two oil pipes separately, enter respectively in two oil pipe grooves, the flashboard of " recessed " shape structure embeds in the opposite side flashboard, and two semicircle oil pipe groove obvolvents of both sides flashboard front end become two circles, can embrace two oil pipes simultaneously, realize the sealing of well mouth of oil well.Compact conformation of the present utility model, simple, reasonable in design, be easy to make, be convenient to operation, solved the blowout prevention problem when double tube high temperature is annotated the vapour well operations effectively, and the sealing performance height, long service life has improved operating efficiency and economic benefit.
Description of drawings:
Accompanying drawing 1 is an agent structure schematic diagram of the present utility model.
Accompanying drawing 2 is figure of the present utility model.
Specific embodiment
As Fig. 1, shown in Figure 2, the utility model comprises: locking leading screw 1, pressure cap 2, inner core 3, side door 4, bolt 5, housing 6, band are set upright flashboard 7, rubber 8, main latus rectum 9, " recessed " shape flashboard 10 of voussoir; The middle part of housing 6 offers main latus rectum 9, band is set upright the flashboard 7 of voussoir and " recessed " shape flashboard 10 and is processed by refractory metal material, be installed in respectively in the flashboard chamber of housing 6 both sides, be with the flashboard 7 of setting upright voussoir to see from the side and be " recessed " shape with " recessed " shape flashboard 10, Front-end Design in echelon, and the high temperature resistant fluorubber glue core 8 that contains is housed respectively, " recessed " shape interlock fully of two shoe brake plates, rubber 8 sealings by trapezium structure and front end, two side doors 4 are sub-packed in the both sides of housing 6 by side door bolt 5, are equipped with sealing ring between side door 4 and the housing 6.Locking leading screw 1 is in inner core 3, and pressure cap 2 is connected with side door 4.
During use, at first the last lower flange by the utility model housing 6 is installed in it on well head of oil well.When in needs sealing oil well and the well head oil pipe being arranged, the locking leading screw 1 driving flashboard 7 that elder generation's rotating band is set upright voussoir one side travels forward, set upright wedge separately with two oil pipes, enter into respectively in two semicircle oil pipe grooves, when this side ram movement arrives main latus rectum 9 centers, rotate opposite side locking leading screw again, drive " recessed " shape flashboard 10 to main latus rectum 9 central motions, contact and push until the both sides flashboard, make the preceding sealing of flashboard front end produce slight deformation, thereby hold oil pipe tightly, realize semitight.In oil well, there is not oil pipe, in the time of need be with its complete closed, then rotate both sides locking leading screw 1, make both sides flashboard 7 and 10 whiles central motion to main latus rectum 9, until the complete interlock of the concave portions of both sides flashboard, closely conflict, this moment, flashboard 7 and 10 was blocked main latus rectum 9 fully, thereby realized hermetically sealed.
Claims (2)
1. high temperature resistant two-tube working preventer, comprise: locking leading screw (1), pressure cap (2), inner core (3), side door (4), bolt (5), housing (6), band is set upright the flashboard (7) of voussoir, rubber (8), main latus rectum (9), " recessed " shape flashboard (10), it is characterized in that: the middle part of housing (6) offers main latus rectum (9), band is set upright the flashboard (7) of voussoir and " recessed " shape flashboard (10) respectively in the flashboard chamber of housing (6) both sides, the high temperature resistant fluorubber glue core (8) that contains is housed on it, two side doors (4) are sub-packed in the both sides of housing (6) by side door bolt (5), be equipped with sealing ring between side door (4) and the housing (6), locking leading screw (1) is in inner core (3), and pressure cap (2) is connected with side door (4).
2. a kind of high temperature resistant two-tube working preventer according to claim 1 is characterized in that: flashboard (7) and " recessed " shape flashboard (10) Front-end Design that band is set upright voussoir are processed by refractory metal material in echelon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205004063U CN201802344U (en) | 2010-08-20 | 2010-08-20 | High-temperature-resistant double-pipe operation blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205004063U CN201802344U (en) | 2010-08-20 | 2010-08-20 | High-temperature-resistant double-pipe operation blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802344U true CN201802344U (en) | 2011-04-20 |
Family
ID=43871849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205004063U Expired - Lifetime CN201802344U (en) | 2010-08-20 | 2010-08-20 | High-temperature-resistant double-pipe operation blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400656A (en) * | 2011-10-31 | 2012-04-04 | 盐城市大冈石油工具厂有限责任公司 | Double-seal integrated blowout preventer |
| CN105422038A (en) * | 2015-12-16 | 2016-03-23 | 常熟市虹桥铸钢有限公司 | Wedge disc body |
-
2010
- 2010-08-20 CN CN2010205004063U patent/CN201802344U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400656A (en) * | 2011-10-31 | 2012-04-04 | 盐城市大冈石油工具厂有限责任公司 | Double-seal integrated blowout preventer |
| CN105422038A (en) * | 2015-12-16 | 2016-03-23 | 常熟市虹桥铸钢有限公司 | Wedge disc body |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |