CN202273635U - Climbing type reducing blowout preventer - Google Patents
Climbing type reducing blowout preventer Download PDFInfo
- Publication number
- CN202273635U CN202273635U CN2011203735054U CN201120373505U CN202273635U CN 202273635 U CN202273635 U CN 202273635U CN 2011203735054 U CN2011203735054 U CN 2011203735054U CN 201120373505 U CN201120373505 U CN 201120373505U CN 202273635 U CN202273635 U CN 202273635U
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- CN
- China
- Prior art keywords
- latch
- gate plate
- intrados
- flashboard assembly
- plate assembly
- 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
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Abstract
The utility model provides a climbing type reducing blowout preventer, which comprises a body, a totally-enclosed gate plate assembly, a semi-enclosed gate plate assembly and a ratchet gate plate assembly, wherein the totally-enclosed gate plate assembly, the semi-enclosed gate plate assembly and the ratchet gate plate assembly are arranged in a main drift diameter of a body in upper, middle and lower layers; a slope-shaped ratchet cavity is formed on an arc-shaped inner end face of a gate plate of the ratchet gate plate assembly; a ratchet block is arranged in the ratchet cavity and is sleeved on a limit pin shaft, and a liming spring is sleeved on the limit pin shaft; a plurality of ratchets are arranged on the inner cambered surface of the ratchet block, and the inner cambered surface of the ratchet block consists of two arc sections with different radii; and the radius of the inner cambered surface of a semi-enclosed gate plate of the semi-enclosed gate plate assembly is the same as that of one of two arc sections of the inner cambered surface of the ratchet block of the ratchet gate plate assembly. The climbing type reducing blowout preventer has a reasonable structure, is easy to manufacture, convenient to operate, high in locking force, safe and reliable, has functions of the total enclosing, semi-enclosing and fixing of two kinds of oil pipelines, and improves the work efficiency effectively.
Description
Technical field
The utility model belongs to the petroleum machinery technical field, specifically, is a kind of slope climbing type reducing preventer.
Background technology
In the oil field operation process, well kick or gas blowout accident happen occasionally, particularly when Operating Pressure, in order to guarantee the well head handling safety, prevent oil pipe because of borehole pressure higher or fluctuation scurry up and down, need to be equipped with the slips preventer.And the slips preventer that uses at present, because coupling mechanism force is not strong, self-locking property is relatively poor, needs to strengthen hydraulic cylinder operating system usually, preventer is bulky, cost is higher thereby make, and is not easy to operation, uses inconvenient.For this reason; The applicant is 201020627807.5 latch formula preventer in having researched and developed the patent No.; It is on flashboard arc inner face, to offer the latch chamber; The latch piece places in the latch chamber and is placed on the spacing bearing pin, on the upper surface in latch chamber and the spacing bearing pin between the latch piece, is equipped with limit spring; And established latch on the intrados of latch piece, thereby constituted latch formula flashboard assembly, had characteristics such as coupling mechanism force is strong, self-locking property good, easy to operate.Yet, in actual mechanical process, because down-hole oil tube is generally the combination oil pipe of two kinds of specifications; Need adopt the slips flashboard of different size for the oil pipe of different tube diameters; Make very inconvenience of operation, even delay the optimum operation time, cause this controllable accident to take place.
The utility model content
For overcoming the weak point of prior art, the utility model provides a kind of oil pipe, coupling mechanism force rational in infrastructure, that be applicable to two kinds of specifications strong slope climbing type reducing preventer.
The utility model solves the technical scheme that its technical problem adopted: comprise body, full-enclosed type flashboard assembly, half-closed type flashboard assembly and latch formula flashboard assembly; The full-enclosed type flashboard is total, half-closed type flashboard assembly and latch formula flashboard assembly be in presenting in following three layers of main latus rectum that is placed in body; Offer the latch chamber of domatic on the arc inner face of the flashboard of latch formula flashboard assembly, the latch piece places in the above-mentioned latch chamber and is placed on the spacing bearing pin, on spacing bearing pin, is equipped with limit spring; The intrados of latch piece is provided with some roads latch, and the intrados of latch piece is made up of the segmental arc of two kinds of different radiis.
The intrados of the latch piece of above-mentioned latch formula flashboard assembly, the radius of center segmental arc are less than the radius of its both sides segmental arc, thereby segmental arc is locked the oil pipe of small radius in the middle part of making, and the both sides segmental arc is locked the oil pipe of long radius.
The intrados of the latch piece of above-mentioned latch formula flashboard assembly, the length of center segmental arc are intrados length overall half the of latch piece, the length of its both sides segmental arc be the latch piece the intrados length overall 1/4th.
The intrados of the latch piece of above-mentioned latch formula flashboard assembly is provided with the dewax groove of vertical setting.The radius of one of two segmental arcs of the radius of the intrados of the half-closed type flashboard of above-mentioned half-closed type flashboard assembly and the intrados of the latch piece of latch formula flashboard assembly is identical.
The beneficial effect of the utility model is: it is rational in infrastructure, be easy to make, and is easy to operate, have half envelope, seal and fix the function of two kinds of oil pipes entirely, and coupling mechanism force is strong, safe and reliable, has improved operating efficiency effectively.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the latch piece of latch formula flashboard assembly in the utility model;
Fig. 3 is the left view of Fig. 2.
Among the figure: 1 is that body, 2 is that main latus rectum, 3 is that full-enclosed type flashboard assembly, 4 is that half-closed type flashboard assembly, 4-1 are that half-closed type flashboard, 5 is that latch formula flashboard assembly, 5-1 are that latch piece, 5-11 are that latch, 5-12 are that dewax groove, 5-2 are that limit spring, 5-3 are spacing bearing pin.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further to detail.
The described slope climbing type reducing of the utility model preventer comprises body 1, full-enclosed type flashboard assembly 3, half-closed type flashboard assembly 4 and latch formula flashboard assembly 5; During full-enclosed type flashboard assembly 3, half-closed type flashboard assembly 4 and latch formula flashboard assembly 5 are presented in following three layers of main latus rectum 2 that is placed in body 1; Offer the latch chamber of domatic on the arc inner face of the flashboard of latch formula flashboard assembly 5, latch piece 5-1 places in the above-mentioned latch chamber and is placed on the spacing bearing pin 5-3, on spacing bearing pin 5-3, is equipped with limit spring 5-2; The intrados of latch piece 5-1 is provided with some road latch 5-11; And the intrados of latch piece 5-1 is made up of the segmental arc of two kinds of different radiis; Specifically; The radius R 1 of center segmental arc is less than the radius R 2 of its both sides segmental arc, and the length of middle part segmental arc is intrados length overall half the of latch piece 5-1, the length of its both sides segmental arc be latch piece 5-1 the intrados length overall 1/4th.The radius R 1 of one of two segmental arcs of the radius of the intrados of the half-closed type flashboard 4-1 of above-mentioned half-closed type flashboard assembly 4 and the intrados of the latch piece 5-1 of latch formula flashboard assembly 5 is identical.The intrados of the latch piece 5-1 of above-mentioned latch formula flashboard assembly 5 is provided with the dewax groove 5-12 of vertical setting.
In the course of the work, when needs seal the well head of no oil pipe in the well head, then adopt full-enclosed type flashboard assembly 3 to carry out capping operation.When having radius to be the well head of R1 oil pipe in the needs sealing well head, then adopt half-closed type flashboard assembly, well head is realized sealing; And when needing fixing this oil pipe this moment, then adopt latch formula flashboard assembly, by the middle part segmental arc of the intrados of latch piece 5-1 this oil pipe is fixed.The radius R 1 of one of segmental arc is identical.When needs when fixedly radius is the R2 oil pipe in the well head, then at first adopt latch formula flashboard assembly, by the both sides segmental arc of the intrados of latch piece 5-1 this oil pipe is fixed; If when needing to seal well head, then change the half-closed type flashboard 4-1 of the half-closed type flashboard assembly 4 that adapts with it rapidly this moment, operation is shunt in a well fast then.
Claims (5)
1. slope climbing type reducing preventer is characterized in that: comprise body, full-enclosed type flashboard assembly, half-closed type flashboard assembly and latch formula flashboard assembly; The full-enclosed type flashboard is total, half-closed type flashboard assembly and latch formula flashboard assembly be in presenting in following three layers of main latus rectum that is placed in body; Offer the latch chamber of domatic on the arc inner face of the flashboard of latch formula flashboard assembly, the latch piece places in the above-mentioned latch chamber and is placed on the spacing bearing pin, on spacing bearing pin, is equipped with limit spring; The intrados of latch piece is provided with some roads latch, and the intrados of latch piece is made up of the segmental arc of two kinds of different radiis.
2. slope climbing type reducing preventer according to claim 1 is characterized in that: the intrados of the latch piece of above-mentioned latch formula flashboard assembly, the radius of center segmental arc is less than the radius of its both sides segmental arc.
3. slope climbing type reducing preventer according to claim 1 and 2; It is characterized in that: the intrados of the latch piece of above-mentioned latch formula flashboard assembly; The length of center segmental arc is intrados length overall half the of latch piece, the length of its both sides segmental arc be the latch piece the intrados length overall 1/4th.
4. slope climbing type reducing preventer according to claim 1 and 2 is characterized in that: the intrados of the latch piece of above-mentioned latch formula flashboard assembly is provided with the dewax groove of vertical setting.
5. slope climbing type reducing preventer according to claim 1 is characterized in that: the radius of one of two segmental arcs of the radius of the intrados of the half-closed type flashboard of above-mentioned half-closed type flashboard assembly and the intrados of the latch piece of latch formula flashboard assembly is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203735054U CN202273635U (en) | 2011-09-30 | 2011-09-30 | Climbing type reducing blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203735054U CN202273635U (en) | 2011-09-30 | 2011-09-30 | Climbing type reducing blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273635U true CN202273635U (en) | 2012-06-13 |
Family
ID=46193999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203735054U Expired - Lifetime CN202273635U (en) | 2011-09-30 | 2011-09-30 | Climbing type reducing blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273635U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756604A (en) * | 2014-09-22 | 2016-07-13 | Zp因特莱茨有限责任公司 | Multi-stage Blowout Preventer And Method Of Using Same |
| CN109403906A (en) * | 2018-11-26 | 2019-03-01 | 秘天昊 | Four ram preventer of coiled tubing hangs diameter contracting autocompensation installation |
| CN109505553A (en) * | 2018-11-26 | 2019-03-22 | 秘天昊 | The application method of four ram preventer of coiled tubing suspension diameter contracting autocompensation installation |
-
2011
- 2011-09-30 CN CN2011203735054U patent/CN202273635U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756604A (en) * | 2014-09-22 | 2016-07-13 | Zp因特莱茨有限责任公司 | Multi-stage Blowout Preventer And Method Of Using Same |
| CN109403906A (en) * | 2018-11-26 | 2019-03-01 | 秘天昊 | Four ram preventer of coiled tubing hangs diameter contracting autocompensation installation |
| CN109505553A (en) * | 2018-11-26 | 2019-03-22 | 秘天昊 | The application method of four ram preventer of coiled tubing suspension diameter contracting autocompensation installation |
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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: 20120613 |
|
| CX01 | Expiry of patent term |