CN2637713Y - Double-sided dual-purpose ram blowout preventer - Google Patents
Double-sided dual-purpose ram blowout preventer Download PDFInfo
- Publication number
- CN2637713Y CN2637713Y CN 03277527 CN03277527U CN2637713Y CN 2637713 Y CN2637713 Y CN 2637713Y CN 03277527 CN03277527 CN 03277527 CN 03277527 U CN03277527 U CN 03277527U CN 2637713 Y CN2637713 Y CN 2637713Y
- Authority
- CN
- China
- Prior art keywords
- flashboard
- well head
- housing
- double
- utility
- 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
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model provides a two-sided dual-purpose flashboard preventer that oil field well workover was used. The well head sealing device mainly comprises a shell, a flashboard, an operating screw rod, a sealing ring and the like, wherein a flange plate connected with a well head is arranged at the lower end of the shell, and the flange plate is symmetrically arranged at the upper end of the shell corresponding to the lower end. A hard alloy layer with the thickness of 1.0-0.5 mm is arranged on the contact surface of the flashboard and the sealing ring. The utility model has the advantages of simple and reasonable structure, can two-way two sides use, loading and unloading are convenient nimble, the suitability is strong, be convenient for maintain to can improve sealed, heat resistance and the life between flashboard and sealing ring.
Description
Affiliated technical field
The utility model relates to a kind of oil field well workover control appliance, particularly a kind of double-sided two-purpose ram preventer.
Background technology
In the workover treatment process, well kick or gas blowout accident happen occasionally, and must use preventer to seal well head, to guarantee the safety of operating personnel and equipment.At present, ram preventer commonly used, it mainly is made up of housing, flashboard, manipulation screw mandrel and joint ring etc., be provided with the studding blind hole that links to each other with last well head in the upper end of housing, its lower end then is provided with the flange that links to each other with following well head, a side is provided with the rubber seal between flashboard and the joint ring, realizes the sealing between flashboard and the sealing.Because the studding blind hole of housing upper end is easily stopped up by impurity such as sand grains, particularly winter, crude oil also can stop up blind hole, thereby operation is very inconvenient; In addition, set rubber seal poor heat resistance, easy to wear between flashboard and the joint ring, application life is short; And the syndeton difference of housing upper/lower terminal is that a side is provided with the rubber seal between flashboard and the joint ring, can only unidirectionally use.
Summary of the invention
Be the existing weak point of the ram preventer that overcomes prior art, the utility model provides a kind of simple and reasonable, double-sided two-purpose ram preventer that can two-way use, and can improve sealing, heat resistance and application life between flashboard and joint ring.
The technical scheme that its technical problem that solves the utility model adopts is: it mainly is made up of housing, flashboard, manipulation screw mandrel and joint ring etc., be provided with the flange that links to each other with well head in the lower end of housing, the upper end of housing also is provided with flange symmetrically corresponding to the lower end.
On the phase-contact surface of flashboard and joint ring, be provided with the hard alloy layer of 1.0-0.5mm,, prolong its application life to improve its sealing, heat-resisting and abrasion resistance.
The beneficial effects of the utility model are: simple and reasonable, can be two-way the two sides use, easy to loading and unloading flexibly, applicability is strong, be convenient to safeguard, and can improve sealing, heat resistance and application life between flashboard and joint ring.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
The utility model mainly is made up of housing 1, flashboard 4, manipulation screw mandrel 9 and joint ring 3 etc., be provided with the flange 6 that links to each other with following (or on) well head in the lower end of housing 1, and establish on the soffit of this flange 6 and the well head closure gasket groove 8 that matches, the periphery of flange 6 is provided with bolt connecting hole 7; Between housing 1 and joint ring 3, be provided with twice O shape rubber seal 2, between the end of flashboard 4 and joint ring 3 and housing 1 touching position, establish liner plate 5.Upper end at housing 1 also is provided with flange 6-1 symmetrically corresponding to its lower end, establishes on the upper surface of this flange 6-1 and last (or down) well head closure gasket groove 8-1 that matches, and the periphery of flange 6-1 is provided with bolt connecting hole 7-1.On the phase-contact surface of flashboard 4 and joint ring 3, all be provided with the Ni60TH of 0.8mm by built-up welding
2Hard alloy layer 10 to improve its sealing, heat-resisting and abrasion resistance, prolongs its application life.
During use, housing of the present utility model 1 is placed between upper and lower well head, and link to each other with upper and lower well head by bolt.During operate as normal, screw mandrel 9 drives flashboard 4 and withdraws from from joint ring 3, and housing 1 and upper and lower well head are connected; When contingencies such as blowout occurring, then will shake screw mandrel 9, flashboard 4 is entered in the joint ring 3, upper and lower well head is closed, and has guaranteed the safety of operating personnel and equipment.
Claims (2)
1, double-sided two-purpose ram preventer, it mainly is made up of housing, flashboard, manipulation screw mandrel and joint ring etc., is provided with the flange that links to each other with well head in the lower end of housing, and it is characterized in that: the upper end of housing also is provided with flange symmetrically corresponding to the lower end.
2, double-sided two-purpose ram preventer according to claim 1 is characterized in that: the hard alloy layer that is equipped with 1.0-0.5mm on the contact surface of flashboard and joint ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277527 CN2637713Y (en) | 2003-08-11 | 2003-08-11 | Double-sided dual-purpose ram blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277527 CN2637713Y (en) | 2003-08-11 | 2003-08-11 | Double-sided dual-purpose ram blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637713Y true CN2637713Y (en) | 2004-09-01 |
Family
ID=34302858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277527 Expired - Lifetime CN2637713Y (en) | 2003-08-11 | 2003-08-11 | Double-sided dual-purpose ram blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637713Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537526B (en) * | 2008-03-17 | 2012-04-25 | 江苏信得石油机械有限公司 | Technique for overlaying surface of inner cavity of advanced sulfur-resistant blowout preventer with alloy |
| CN102713136A (en) * | 2009-11-25 | 2012-10-03 | 海德里尔美国制造业有限责任公司 | Breech lock mechanisms for blowout preventer and method |
-
2003
- 2003-08-11 CN CN 03277527 patent/CN2637713Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537526B (en) * | 2008-03-17 | 2012-04-25 | 江苏信得石油机械有限公司 | Technique for overlaying surface of inner cavity of advanced sulfur-resistant blowout preventer with alloy |
| CN102713136A (en) * | 2009-11-25 | 2012-10-03 | 海德里尔美国制造业有限责任公司 | Breech lock mechanisms for blowout preventer and method |
| CN102713136B (en) * | 2009-11-25 | 2013-06-26 | 海德里尔美国制造业有限责任公司 | Breech lock mechanisms for blowout preventer and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130811 Granted publication date: 20040901 |