CN203230363U - Anti-overflow telescopic nipple - Google Patents
Anti-overflow telescopic nipple Download PDFInfo
- Publication number
- CN203230363U CN203230363U CN 201320256554 CN201320256554U CN203230363U CN 203230363 U CN203230363 U CN 203230363U CN 201320256554 CN201320256554 CN 201320256554 CN 201320256554 U CN201320256554 U CN 201320256554U CN 203230363 U CN203230363 U CN 203230363U
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- casing
- overflow
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- chamber
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Abstract
The utility model relates to an anti-overflow telescopic nipple, which solves the technical problem that the efficiency of lifting a long tool is low and the environment is polluted. The technical scheme is that the anti-overflow telescopic nipple structurally comprises an inner casing with a sucker rod inside, a middle casing and an outer casing, the bottom of the middle casing is fixedly communicated with a lower blowout preventer assembly, the top ends of the inner casing and the outer casing are fixedly connected with an upper blowout preventer assembly through an upper cover and a matched connecting assembly, the middle casing is limited in a chamber formed between the inner casing and the outer casing respectively through an upper fixed sealing sleeve and a lower slidable sealing sleeve, the middle casing divides the chamber into a liquid storage chamber and a diversion chamber which is communicated with the inner chamber of the inner casing, the liquid storage chamber is communicated with the diversion chamber through a diversion hole which is formed in the middle casing, the outer casing and the inner casing are fit through a lifting slidable seal, and the outer casing, the inner casing and the middle casing form a telescopic-cylinder-type anti-overflow nipple. The anti-overflow telescopic nipple has the advantages that the high-pressure liquid is effectively prevented from overflowing and the construction efficiency is improved.
Description
Technical field
The utility model relates to the well-control equipment of petroleum industry underground work, particularly a kind of anti-overflow Telescopic short piece.
Background technology
When playing farm labourer's tool in the oil water well working with pressure process, generally take two kinds of methods at present, a kind of is to have lubricator in the Operating Pressure equipment, and using this lubricator is the salable farm labourer's of tripping out tool, such device height height, entire belt pressure job execution efficient is low and then construction cost is high; There is not lubricator in the another kind of Operating Pressure equipment, must draining overflow when using such equipment to play long tool string, so just there is the problem of the following aspects, (1) draining overflow influences operating efficiency, there is liquid in well, to spray when (2) constructing, causes environment pollution easily.
Summary of the invention
The utility model will solve the technical problem of the low and contaminated environment of in playing the process of farm labourer's tool efficient, designed a kind of anti-overflow Telescopic short piece, adopt the sealing stretching structure, realization can trip out farm labourer's tool in the well or transfer smoothly, make the sealing of Operating Pressure equipment remove farm labourer's tool, realize the overall process Operating Pressure.
The technical solution adopted in the utility model is: a kind of anti-overflow Telescopic short piece, comprise in the structure that inner chamber is equipped with the inner sleeve of sucker rod, and intermediate casing and outer tube, its key is: described intermediate casing bottom is communicated with fixing with following preventer assembly, inner sleeve is fixedlyed connected with last preventer assembly by loam cake and supporting coupling assembling with the top of outer tube, intermediate casing is respectively by in last fixing seal cover and the spacing tube chamber that forms between inner sleeve and outer tube of lower slider sealing shroud, and tube chamber is separated to form liquid storage cylinder and the diversion cavity that is communicated with the inner sleeve inner chamber, liquid storage cylinder is communicated with diversion cavity by the pod apertures that is arranged on the intermediate casing, and outer tube and inner sleeve form telescopic cylinder type anti-overflow pipe nipple by lifting slipper seal cooperation and intermediate casing.
The beneficial effects of the utility model are: this product is compared with existing product has following advantage: 1. the anti-overflow Telescopic short piece is easy for installation, and easy construction has improved efficiency of construction; 2. making does not have the Operating Pressure of lubricator equipment to seal to remove farm labourer's tool; 3. abutted flange makes the anti-overflow Telescopic short piece be connected with Operating Pressure equipment, forms the integral body of a sealing, and the instrument coupling part can make the anti-overflow Telescopic short piece be connected with instrument in the well quickly and easily, bears tubing string weight in the well simultaneously.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is the structural representation of the utility model contraction state.
Fig. 2 is the structural representation that the utility model stretches out state.
In the accompanying drawing, the 1st, inner sleeve, the 2nd, loam cake, the 3rd, outer tube, the 4th, intermediate casing, the 5th, last fixing seal cover, the 6th, the lower slider sealing shroud, the 7th, sucker rod, the 8th, liquid storage cylinder, the 9th, diversion cavity, the 10th, inner sleeve inner chamber, A are pod apertures.
The specific embodiment
A kind of anti-overflow Telescopic short piece, comprise in the structure that inner chamber is equipped with the inner sleeve 1 of sucker rod 7, and intermediate casing 4 and outer tube 3, key is: described intermediate casing 4 bottoms are communicated with fixing with following preventer assembly, inner sleeve 1 is fixedlyed connected with last preventer assembly by loam cake 2 and supporting coupling assembling with the top of outer tube 3, intermediate casing 4 is respectively by in last fixing seal cover 5 and the lower slider sealing shroud 6 spacing tube chambers that form between inner sleeve 1 and outer tube 3, and the diversion cavity 9 that tube chamber is separated to form liquid storage cylinder 8 and is communicated with inner sleeve inner chamber 10, liquid storage cylinder 8 is communicated with diversion cavity 9 by the pod apertures A that is arranged on the intermediate casing 4, and outer tube 3 and inner sleeve 1 form telescopic cylinder type anti-overflow pipe nipple by lifting slipper seal cooperation and intermediate casing 4.
The described limiting stand that comprises O type circle in the fixing seal cover 5 and have seal groove of going up, last fixing seal overlap 5 fixedlys connected with intermediate casing 4 by limiting stand.
Comprise O type circle in the described lower slider sealing shroud 6 and have the limiting stand of seal groove, lower slider sealing shroud 6 is fixedlyed connected with outer tube 3 by limiting stand.
Described pod apertures A is positioned at fixing seal and overlaps 5 belows, is provided with 4, on intermediate casing 4 tube walls that are distributed on.
Be specific embodiment of the utility model below:
During installation, loam cake 2 and outer tube 3 are connected by bolton, inner sleeve 1 is connected with bolton by collar, gland with loam cake 2, lower slider sealing shroud 6 is connected with bolton by collar, gland with outer tube 3, and last fixing seal cover 5 is connected with bolton by collar, gland with intermediate casing 4.
During use, the lower end of intermediate casing 4 is connected by flange and following preventer assembly, inner sleeve 1 is connected by flange and last preventer assembly with outer tube 3.
When in high-pressure well, tripping out in the well sucker rod 7, last preventer cuts out, following preventer is opened, the elongation of anti-overflow Telescopic short piece, the former highly pressurised liquid that is stored in the liquid storage cylinder 8 is extruded in the diversion cavity 9 of intermediate casing 4 inboards, at this moment by pod apertures A when the anti-overflow Telescopic short piece extends, because last preventer sealing, following preventer is opened, and the partially liq in the diversion cavity 9 is under the high pressure compressed of the telescopic cylinder type anti-overflow pipe nipple that forms, under the inflow place, gap between sucker rod 7 and the intermediate casing 4; Otherwise, when closing down preventer, open preventer, the anti-overflow Telescopic short piece shortens, formerly be stored in highly pressurised liquid in diversion cavity 9 and the inner sleeve inner chamber 10 and when the anti-overflow Telescopic short piece shortens, be extruded in the liquid storage cylinder 8 between outer tube 3 and the intermediate casing 4 by pod apertures A, high pressure liquid cognition temporarily is kept between outer tube 3 and the intermediate casing 4, thereby makes highly pressurised liquid that excessive phenomenon not take place.The anti-overflow Telescopic short piece repeats to stretch, and no matter repeats how many times, and underground highly pressurised liquid all can not overflow, and, not needing to discharge highly pressurised liquid yet, this device can be pressed into the highly pressurised liquid that stores in the pipe underground under Operating Pressure again.
Claims (4)
1. anti-overflow Telescopic short piece, comprise in the structure that inner chamber is equipped with the inner sleeve of sucker rod (7) (1), and intermediate casing (4) and outer tube (3), it is characterized in that: described intermediate casing (4) bottom is communicated with fixing with following preventer assembly, inner sleeve (1) is communicated with fixing by loam cake (2) and supporting coupling assembling with last preventer composition with the top of outer tube (3), intermediate casing (4) is respectively by in last fixing seal cover (5) and the spacing tube chamber that forms between inner sleeve (1) and outer tube (3) of lower slider sealing shroud (6), and tube chamber is separated to form liquid storage cylinder (8) and the diversion cavity (9) that is communicated with inner sleeve inner chamber (10), liquid storage cylinder (8) is communicated with diversion cavity (9) by the pod apertures (A) that is arranged on the intermediate casing (4), and outer tube (3) and inner sleeve (1) form telescopic cylinder type anti-overflow pipe nipple by lifting slipper seal cooperation and intermediate casing (4).
2. a kind of anti-overflow Telescopic short piece according to claim 1 is characterized in that: the described limiting stand that comprises O type circle in the fixing seal cover (5) and have seal groove of going up, last fixing seal cover (5) is fixedlyed connected with intermediate casing (4) by limiting stand.
3. a kind of anti-overflow Telescopic short piece according to claim 1 is characterized in that: comprise O type circle in the described lower slider sealing shroud (6) and have the limiting stand of seal groove, lower slider sealing shroud (6) is fixedlyed connected with outer tube (3) by limiting stand.
4. a kind of anti-overflow Telescopic short piece according to claim 1 is characterized in that: described pod apertures (A) is positioned at fixing seal cover (5) below, is provided with 4, on the intermediate casing that is distributed on (4) tube wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320256554 CN203230363U (en) | 2013-05-13 | 2013-05-13 | Anti-overflow telescopic nipple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320256554 CN203230363U (en) | 2013-05-13 | 2013-05-13 | Anti-overflow telescopic nipple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230363U true CN203230363U (en) | 2013-10-09 |
Family
ID=49286496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320256554 Expired - Lifetime CN203230363U (en) | 2013-05-13 | 2013-05-13 | Anti-overflow telescopic nipple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282660A (en) * | 2020-11-09 | 2021-01-29 | 孟庆余 | Assembled drilling device capable of automatically injecting water |
-
2013
- 2013-05-13 CN CN 201320256554 patent/CN203230363U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282660A (en) * | 2020-11-09 | 2021-01-29 | 孟庆余 | Assembled drilling device capable of automatically injecting water |
| CN112282660B (en) * | 2020-11-09 | 2022-09-23 | 山东巨匠机械集团有限公司 | Assembled drilling device capable of automatically injecting water |
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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: 20131009 |
|
| CX01 | Expiry of patent term |