CN101413382A - Blowout prevention on-off connector - Google Patents
Blowout prevention on-off connector Download PDFInfo
- Publication number
- CN101413382A CN101413382A CNA2007101574959A CN200710157495A CN101413382A CN 101413382 A CN101413382 A CN 101413382A CN A2007101574959 A CNA2007101574959 A CN A2007101574959A CN 200710157495 A CN200710157495 A CN 200710157495A CN 101413382 A CN101413382 A CN 101413382A
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- CN
- China
- Prior art keywords
- hermetical
- fixture block
- main body
- blowout
- lug boss
- 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.)
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Abstract
The invention relates to a blowout preventing uncoupling device, which comprises a main body, an outer sleeve, an uncoupling device center rod, large compression springs and a hermetical lock tube, and is characterized in that both ends of an inner circle of the outer sleeve are provided with a positioning lug boss and a hermetical lug boss respectively; the end face of the hermetical lug boss is a conical surface; the hermetical lock tube is provided with a hermetical conical surface which contacts the hermetical lug boss; a plurality of clamping blocks are arranged on the periphery of the main body; both ends of the main body positioned on inner surfaces of the clamping blocks are provided with axial oil through grooves; the middle of each clamping block is provided with a radial oil through hole; the compression springs are arranged at the bottoms of various clamping blocks; and end faces of the clamping blocks which contact the positioning lug boss of the outer sleeve are conical surfaces. The blowout preventing uncoupling device has the advantages of being capable of effectively preventing blowout of crude oil from a wellhead under the condition of well workover operation and avoiding floor pollution and waterhead pollution.
Description
Technical field
Lamp of the present invention belongs to a kind of oil field well workover instrument, particularly a kind of blowout-prevention connecting-tripping device.
Background technology
At present during oil well repairing operation, after sucker rod thrown off,,, cause environment pollution, therefore demand urgently providing a kind of device to solve this problem so the crude oil in the pumpingh well can spray well head because well head does not have sealing device.
Invention lamp content
The purpose of lamp of the present invention provides a kind of blowout-prevention connecting-tripping device, effectively prevents crude oil ejection well head when workover treatment, avoids ground and pollution of waterhead, can guarantee its logical oil mass simultaneously.
The purpose of lamp of the present invention is achieved by the following technical solution: it comprises main body, overcoat, the disjointed device center-pole, the sealing lock tube, big compression spring, it is characterized in that: the interior circle of overcoat is provided with seal boss, the end face of seal boss is the conical surface, the a plurality of fan type fixture blocks of assembling on the periphery of main body, the two ends that main body is positioned at fan type fixture block inner surface are provided with axially logical oil groove, the middle part of each fan type fixture block is provided with radially oil through, four jiaos of designs of each fan type fixture block have the camber breach, fan type fixture block is cross, each fan type fixture block bottom assemble compressible spring, the end face that fan type fixture block contacts with the overcoat seal boss is the conical surface.
Periphery at above-mentioned fixture block is provided with sheath.
On above-mentioned disjointed device center-pole, have the draining groove.
The advantage of lamp of the present invention is: can effectively prevent crude oil ejection well head when workover treatment, and can prevent that the oil well pump piston from dropping, and avoids ground and pollution of waterhead.
Description of drawings
Fig. 1 is the structural representation of lamp of the present invention.
Fig. 2 is A-A sectional view of Fig. 1.
Fig. 3 is the local enlarged diagram (end face structure that fan type fixture block contacts with overcoat one end positioning boss) of Fig. 1.
Fig. 4 is single fan type fixture block vertical view.
Fig. 5 is B-B sectional view of Fig. 1.
The specific embodiment
See Fig. 1-5, concrete structure is as follows: the interior round two ends of overcoat 2 are provided with positioning boss and seal boss respectively, and the end face of seal boss is the conical surface.Assembling main body 1 in overcoat 2, main body 1 connects disjointed device center-pole 9, has draining groove 13 on disjointed device center-pole 9.Assembling nut 6 and sealing lock tube 8 on the disjointed device center-pole 9, the big compression of assembling spring 7 between nut 6 and sealing lock tube 8.Sealing lock tube 8 is provided with the sealing cone that contacts with overcoat 2 one end seal bosses.Assemble 4--6 fan type fixture block 3 on the periphery of main body 1, the two ends that main body 1 is positioned at fan type fixture block 3 inner surfaces are provided with axially logical oil groove 10, the middle part of each fan type fixture block 3 is provided with radially oil through 11, and four jiaos of designs of each fan type fixture block 3 have camber breach 12, thereby fixture block 3 is cross (see figure 4).The two ends periphery of each fan type fixture block 3 is provided with sheath 5.The bottom assemble compressible spring 4 of each fixture block 3, fan type fixture block 3 is the orientational cone-shaped surface (see figure 3) with the end face that overcoat 2 one end positioning boss contact.
Operating principle: main body 1 one ends are connected with the oil well pump piston thread, and overcoat 2 is connected with the oil well pump overcoat, during workover treatment, will carry the disengagement sucker rod on the disjointed device center-pole 9 earlier, and sealing lock tube 8 is realized sealing under big compression spring 7 effects.After operation was finished, the sucker rod lower end connected pawl and is connected with disjointed device center-pole 9, at sucker rod deadweight situation lower compression sealing lock tube 8, made the oil well pump descent of piston, made fixture block be retracted to the operating position.The two end axles that main body 1 is positioned at fan type fixture block 3 inner surfaces has draining groove 13 on the camber breach 12 of the radially oil through 11 at logical oil groove 10, fan type fixture block 3 middle parts and four jiaos, disjointed device center-pole 9 all be in order to strengthen logical oil mass.
Claims (3)
1, a kind of blowout-prevention connecting-tripping device, it comprises main body, overcoat, disjointed device center-pole, compresses spring and sealing lock tube greatly, it is characterized in that: the interior round two ends of overcoat are provided with positioning boss and seal boss respectively, the end face of seal boss is the conical surface, dense block is arranged with the sealing cone that contacts with seal boss, the a plurality of fixture blocks of assembling on the periphery of main body, the two ends that main body is positioned at the fixture block inner surface are provided with axially logical oil groove, the middle part of each fixture block is provided with radially oil through, each fixture block bottom assemble compressible spring, the end face that fixture block contacts with the overcoat positioning boss is the conical surface.
2, blowout-prevention connecting-tripping device according to claim 1 is characterized in that: the periphery at fixture block is provided with sheath.
3, blowout-prevention connecting-tripping device according to claim 1 is characterized in that: have the draining groove on the disjointed device center-pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101574959A CN101413382A (en) | 2007-10-17 | 2007-10-17 | Blowout prevention on-off connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101574959A CN101413382A (en) | 2007-10-17 | 2007-10-17 | Blowout prevention on-off connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101413382A true CN101413382A (en) | 2009-04-22 |
Family
ID=40594091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101574959A Pending CN101413382A (en) | 2007-10-17 | 2007-10-17 | Blowout prevention on-off connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101413382A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709631B (en) * | 2009-11-10 | 2013-11-20 | 梁伟成 | Blowout-prevention connecting-tripping device |
| CN106677753A (en) * | 2017-02-28 | 2017-05-17 | 曾海江 | Downhole pipe type under-pressure oil extraction device |
-
2007
- 2007-10-17 CN CNA2007101574959A patent/CN101413382A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709631B (en) * | 2009-11-10 | 2013-11-20 | 梁伟成 | Blowout-prevention connecting-tripping device |
| CN106677753A (en) * | 2017-02-28 | 2017-05-17 | 曾海江 | Downhole pipe type under-pressure oil extraction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090422 |