CN205225157U - Blowout preventer for long string - Google Patents
Blowout preventer for long string Download PDFInfo
- Publication number
- CN205225157U CN205225157U CN201521078889.1U CN201521078889U CN205225157U CN 205225157 U CN205225157 U CN 205225157U CN 201521078889 U CN201521078889 U CN 201521078889U CN 205225157 U CN205225157 U CN 205225157U
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- CN
- China
- Prior art keywords
- upper portion
- spring
- float
- packing
- joint ring
- 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 - Fee Related
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Abstract
The utility model relates to a blowout preventer for long string, its technical scheme is: the inside seal skeleton that is equipped with of sheathed tube, seal skeleton's inside be equipped with the spring holder, be equipped with the spring on the spring holder, the upper portion of spring be equipped with and push down the cap, the upper portion that pushes down the cap is equipped with the packing, the upper portion of packing is fixed through last pressures cap, seal skeleton's lateral wall on be equipped with the balancing hole, to pass through the sealing ring fixed the outside of balancing hole, the upper portion of sealing ring be equipped with the annular float, the bottom of annular float is equipped with the toper and wears spunlace, the toper wear spunlace be located the sealing ring upper portion and with the sealing ring contact, sheathed tube upper portion be equipped with the float spacing ring, the beneficial effects of the utility model are that: the device simple structure, with low costs has reduced downhole accident's emergence, has improved the oil field production benefit.
Description
Technical field
The utility model relates to a kind of producing well blowout control equipment, particularly a kind of long string blowout hookup.
Background technology
In oil extraction in oil field, sucker rod pumping is still main method, the drive unit on ground drives oil well pump to pump in oil pipe pump barrel by sucker rod, thus crude oil is pumped into ground, rod collar is widely used part in the sucker rod pumping system of oil field, the connection between sucker rod is realized by it, rod string is when down-hole normally works, oil pumper drives on rod string, lower reciprocating motion, due to hole deviation, crude oil resistance, the impact of the factors such as the frictional force of rod string and tube inner wall, sucker rod will constantly be stretched, compression, the fluctuating load that bending and additional torque etc. are complicated, thus generation sucker rod and screw threads of coupler loosen and thread off, sucker rod is made to fall in oil well, cause down-hole accident, oil well is forced to stop production, have a strong impact on the production efficiency in oil field, add the cost of production in oil field.Polished rod of pumping well is the key position of pumping unit, and it has two effects, and one is bear down-hole load by polished rod eye and square clamp; Two are and wellhead packing box fitted seal well head.Due to the impact of polished rod quality and various duty factor, its in working order under disconnected de-phenomenon happen occasionally, especially high at viscosity of crude, load is heavy or jig frequency is aboveground faster, the probability of light rod-broken is very high, break after taking off, if polished rod fracture drops below wellhead packing box, packing box will lose sealing function, OIH air-water mixture will spray well head, bring many difficulties to crude oil production and site safety management work.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and provide a kind of long string blowout hookup, structure is simple, cost is low, decreases the generation of down-hole accident, improves field produces benefit.
Its technical scheme is: comprise sleeve pipe, sealing framework, spring, lower pressing cap, annular float, joint ring, float spacing ring, packing, upper pressing cap and spring base, the inside of sleeve pipe is provided with sealing framework, the inside of described sealing framework is provided with spring base, spring base is provided with spring, the top of described spring is provided with lower pressing cap, the top of lower pressing cap is provided with packing, the top of packing is fixed by upper pressing cap, the sidewall of described sealing framework is provided with balance pipe, the outside of described balance pipe is fixed by joint ring, the top of described joint ring is provided with annular float, the bottom of annular float is provided with taper puncturing head, taper puncturing head is positioned at the top of joint ring and contacts with joint ring, the top of described sleeve pipe is provided with float spacing ring.
The tapered structure of above-mentioned joint ring, be conducive to pressure excessive time, realize opening of joint ring.
The beneficial effects of the utility model are: can avoid causing packing box place without the oil gas leaked water controlling to cause owing to falling into well after light rod-broken in rod-pumped well, improve the safety at crude oil production scene, reduce the potential safety hazard in oil extraction process; Whirligig solves the problem that sucker rod causes screw thread to loosen because of radial torsion and threads off, and this apparatus structure is simple, cost is low, decreases the generation of down-hole accident, improves field produces benefit.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure: sleeve pipe 1, sealing framework 2, spring 3, lower pressing cap 4, annular float 5, joint ring 6, float spacing ring 7, packing 8, upper pressing cap 9 and spring base 10; Balance pipe 2.1.
Detailed description of the invention
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises sleeve pipe 1, sealing framework 2, spring 3, lower pressing cap 4, annular float 5, joint ring 6, float spacing ring 7, packing 8, upper pressing cap 9 and spring base 10, the inside of sleeve pipe 1 is provided with sealing framework 2, the inside of described sealing framework 2 is provided with spring base 10, spring base 10 is provided with spring 3, the top of described spring 3 is provided with lower pressing cap 4, the top of lower pressing cap 4 is provided with packing 8, the top of packing 8 is fixed by upper pressing cap 9, the sidewall of described sealing framework 2 is provided with balance pipe 2.1, the outside of described balance pipe 2.1 is fixed by joint ring 6, the top of described joint ring 6 is provided with annular float 5, the bottom of annular float 5 is provided with taper puncturing head, taper puncturing head is positioned at the top of joint ring and contacts with joint ring, the top of described sleeve pipe 1 is provided with float spacing ring 7.
Wherein, the tapered structure of joint ring 6, be conducive to pressure excessive time, realize opening of joint ring.
Operating principle:
When pressure is excessive, sealing framework 2 moves on the whole, the annular float 5 on the top of joint ring moves up and realizes the contact of annular float and float spacing ring 7, joint ring is promoted downwards by the taper puncturing head bottom annular float by float spacing ring 7, realize opening of balance pipe 2.1, realize balance draining, prevent blowout.
The above is only preferred embodiment of the present utility model, and any those of ordinary skill in the art all may utilize the technical scheme of above-mentioned elaboration to the utility model correct or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to the technical solution of the utility model or substitute equivalents, belong to the greatest extent the scope that the utility model is claimed.
Claims (2)
1. a long string blowout hookup, it is characterized in that: comprise sleeve pipe, sealing framework, spring, lower pressing cap, annular float, joint ring, float spacing ring, packing, upper pressing cap and spring base, the inside of sleeve pipe is provided with sealing framework, the inside of described sealing framework is provided with spring base, spring base is provided with spring, the top of described spring is provided with lower pressing cap, the top of lower pressing cap is provided with packing, the top of packing is fixed by upper pressing cap, the sidewall of described sealing framework is provided with balance pipe, the outside of described balance pipe is fixed by joint ring, the top of described joint ring is provided with annular float, the bottom of annular float is provided with taper puncturing head, taper puncturing head is positioned at the top of joint ring and contacts with joint ring, the top of described sleeve pipe is provided with float spacing ring.
2. a kind of long string blowout hookup according to claim 1, is characterized in that: the tapered structure of described joint ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521078889.1U CN205225157U (en) | 2015-12-23 | 2015-12-23 | Blowout preventer for long string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521078889.1U CN205225157U (en) | 2015-12-23 | 2015-12-23 | Blowout preventer for long string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225157U true CN205225157U (en) | 2016-05-11 |
Family
ID=55900231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521078889.1U Expired - Fee Related CN205225157U (en) | 2015-12-23 | 2015-12-23 | Blowout preventer for long string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225157U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503713A (en) * | 2017-08-15 | 2017-12-22 | 陶奇 | A kind of efficient oil production equipment |
-
2015
- 2015-12-23 CN CN201521078889.1U patent/CN205225157U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503713A (en) * | 2017-08-15 | 2017-12-22 | 陶奇 | A kind of efficient oil production equipment |
| CN107503713B (en) * | 2017-08-15 | 2019-11-26 | 俞广初 | A kind of efficient oil production equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20161223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |