CN201354597Y - Crude oil anti-theft device in sleeve - Google Patents
Crude oil anti-theft device in sleeve Download PDFInfo
- Publication number
- CN201354597Y CN201354597Y CNU2009200992321U CN200920099232U CN201354597Y CN 201354597 Y CN201354597 Y CN 201354597Y CN U2009200992321 U CNU2009200992321 U CN U2009200992321U CN 200920099232 U CN200920099232 U CN 200920099232U CN 201354597 Y CN201354597 Y CN 201354597Y
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- platform
- main body
- sleeve
- hole
- sliding sleeve
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- Expired - Fee Related
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Abstract
A crude oil anti-theft device in a sleeve relates to petroleum machinery, including a main body (1), a sliding sleeve (2) and a spare cap (3). An annular fixed sealing platform (4) is mounted on the external wall of the front part of the main body (1). A through hole (5) of the fixed sealing platform is axially mounted on the fixed sealing platform (4). The external wall is equipped with a seal ring (6). The external wall of the main body (1) is provided with an inclined chute (7), and the two ends and the rear part of the external wall are provided with external screw threads. The front end of the sliding sleeve (2) is provided with an annular moving sealing platform (9). A through hole (10) of the moving sealing platform is axially mounted on the moving sealing platform (9). A limiting pin hole (11) and a limiting pin (12) are axially mounted on the moving sealing platform (9). The sliding sleeve (2) is sheathed on the main body (1). The spare cap (3) is slidably sheathed on the sliding sleeve (2) and screwed on the external screw threads at the rear part of the external wall of the main body (1). The utility model with simple structure is safe and reliable, and can effectively prevent the loss of the crude oil in the sleeve layer. The operations such as well measuring and well washing and the like can be conveniently operated without dismounting the device.
Description
Technical field
The utility model relates to petroleum machinery, is specifically related to be used for the anti-theft device of crude oil in oil well and the water injection well sleeve pipe.
Background technology
At present, in the petroleum machinery field, be used for crude oil antitheft device ubiquity or complex structure, or not good, the safe and reliable inadequately shortcoming of anti-theft effect.
The utility model content
Technical problem to be solved in the utility model is: crude oil anti-theft device in a kind of simple in structure, safe and reliable sleeve pipe is provided.
Technical solution of the present utility model is: it comprises main body, sliding sleeve and be equipped with cap, main body is that anterior outer wall is provided with the pipe body that annular is sealed platform surely, surely sealing platform is axially arranged with and decides envelope platform through hole, surely seal the platform outer wall and be provided with sealing ring, the outer wall of main body after sealing platform surely is provided with oblique chute, main body two ends and external rear wall are provided with external screw thread, sliding sleeve is the pipe body that front end is provided with the moving envelope of annular platform, the moving envelope platform of sliding sleeve is axially arranged with moving envelope platform through hole, the moving envelope platform of sliding sleeve radially is provided with limit pin hole and places the spacer pin that stretches out the sliding sleeve inwall in the limit pin hole, sliding sleeve is enclosed within on the main body, the external part of spacer pin is against in the main body chute, is equipped with cap and is screwed onto after sliding sleeve on the external screw thread of main body external rear wall.
Technique effect of the present utility model is: it has simple in structure, safe and reliable advantage, can prevent effectively that phenomenon takes place surreptitiously to lose crude oil in the casing layer, is logging well and during operation such as well-flushing, need not dismantle this device and can conveniently carry out.
Description of drawings
Fig. 1 is the structural representation that partly cuts open of the present utility model;
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1;
Fig. 3 is the B-B sectional structure schematic diagram of Fig. 1.
The specific embodiment
As Fig. 1, shown in 2 and 3, the crude oil anti-theft device comprises main body 1 in the sleeve pipe of present embodiment, sliding sleeve 2 and be equipped with cap 3, main body 1 is provided with the pipe body that annular is sealed platform 4 surely for anterior outer wall, surely sealing platform 4 is axially arranged with and decides envelope platform through hole 5, surely seal platform 4 outer walls and be provided with sealing ring 6, the outer wall of main body 1 after sealing platform 4 surely is provided with oblique chute 7, main body 1 two ends and external rear wall are provided with external screw thread, the external thread bolt connection at main body 1 two ends has box cupling 8, sliding sleeve 2 is provided with the pipe body of the moving envelope of annular platform 9 for front end, the moving envelope platform 9 of sliding sleeve 2 is axially arranged with moving envelope platform through hole 10, the moving envelope platform 9 of sliding sleeve 2 radially is provided with limit pin hole 11 and places the spacer pin 12 that stretches out sliding sleeve 2 inwalls in the limit pin hole 11, sliding sleeve 2 is enclosed within on the main body 1, and the external part of spacer pin 12 is against in main body 1 chute 7, is equipped with cap 3 and is screwed onto on the external screw thread of main body 1 external rear wall after sliding sleeve 2.
Described main body 1 is made up of central tube 13 and outer tube sleeve 14, outer tube sleeve 14 is enclosed within outside the central tube 13, main body 1 two ends external screw thread is located at central tube 13 two ends, the external screw thread of main body 1 external rear wall is located at outer tube sleeve 14 rear ends, surely seal platform 4 and be located at outer tube sleeve 14 front portions, 14 of central tube 13 and outer tube sleeve are provided with sealing ring 6 sealings.
The rear end of described sliding sleeve 2 is provided with down ring platform 15, and following ring platform 15 is axially arranged with and moving envelope platform through hole 10 positions corresponding ring platform down through hole 16, the oblique blade 17 that is provided with of following ring platform 15 rear end faces.Blade 17 can make in the sleeve pipe effect of well liquid, and it produces the circumferentially active force of rotation, enhanced leaktightness effect to sliding sleeve 2 when going up.
Described sliding sleeve 2 and be equipped with 3 on cap and be with back-up ring 18, back-up ring 18 is axially arranged with back-up ring through hole 19, and back-up ring through hole 19 diameters greater than under encircle platform through hole 16 diameters.
Described spacer pin 12 is provided with the resilient key of spring 20 for the rear portion.Spring 20 is enclosed within spacer pin 12 rear portions, and spring 20 rear portions are provided with plug 21, and plug 21 is screwed onto limit pin hole 11 collar extensions.
The crude oil anti-theft device is when assembling in the sleeve pipe of present embodiment, at first with back-up ring through hole 19 with to seal platform through hole 5 positions surely corresponding, axial float is adjusted back-up ring 18 again, when sliding sleeve 2 blades, 17 rear ends and back-up ring 18 front end faces are offseted, moving envelope platform through hole 10 and encircle platform through hole 16 down and to seal platform through hole 5 and back-up ring through hole 19 positions surely corresponding, the axial line that is them is on same the straight line, and is last, and back-up ring 18 is fixed on the main body 1 by modes such as positioning bolts.
During use, envelope platform 4 ends of deciding of main body 1 upwards are fixed on the interior oil pipe string of sleeve pipe.The pressure that returns well liquid on not in casing layer is done the time spent, and sliding sleeve 2 is positioned at the lower end, seals platform through hole 5, moving envelope platform through hole 10 surely, encircles platform through hole 16 and back-up ring through hole 19 down and be on the same axis, can log well normally and operation such as well-flushing; When the well action of hydraulic force was arranged in casing layer, under the promotion of pipe hydraulic coupling, sliding sleeve 2 was along moving on the chute 7 of oblique setting, make and decide envelope platform 4 lower surfaces and contact with moving envelope platform 9 upper surfaces, at this moment, moving envelope platform through hole 10 turns over certain angle and seals platform through hole 5 surely and staggers, thereby realizes the planar sealing.
Claims (5)
1, crude oil anti-theft device in the sleeve pipe, it is characterized in that, it comprises main body (1), sliding sleeve (2) and be equipped with cap (3), main body (1) is provided with the pipe body that annular is sealed platform (4) surely for anterior outer wall, surely sealing platform (4) is axially arranged with and decides envelope platform through hole (5), surely seal platform (4) outer wall and be provided with sealing ring (6), main body (1) is provided with oblique chute (7) in sealing platform (4) outer wall afterwards surely, main body (1) two ends and external rear wall are provided with external screw thread, sliding sleeve (2) is provided with the pipe body of annular moving envelope platform (9) for front end, the moving envelope platform (9) of sliding sleeve (2) is axially arranged with moving envelope platform through hole (10), the moving envelope platform (9) of sliding sleeve (2) radially is provided with limit pin hole (11) and places the spacer pin (12) that stretches out sliding sleeve (2) inwall in the limit pin hole (11), sliding sleeve (2) is enclosed within on the main body (1), the external part of spacer pin (12) is against in main body (1) chute (7), is equipped with cap (3) and is screwed onto afterwards on the external screw thread of main body (1) external rear wall in sliding sleeve (2).
2, crude oil anti-theft device in the sleeve pipe as claimed in claim 1, it is characterized in that, described main body (1) is made up of central tube (13) and outer tube sleeve (14), outer tube sleeve (14) is enclosed within outside the central tube (13), main body (1) two ends external screw thread is located at central tube (13) two ends, the external screw thread of main body (1) external rear wall is located at outer tube sleeve (14) rear end, seals platform (4) surely and is located at outer tube sleeve (14) front portion, is provided with sealing ring (6) sealing between central tube (13) and outer tube sleeve (14).
3, crude oil anti-theft device in the sleeve pipe as claimed in claim 1, it is characterized in that, the rear end of described sliding sleeve (2) is provided with down ring platform (15), under encircle platform (15) and be axially arranged with and moving envelope platform through hole (10) position corresponding ring down platform through hole (16), the oblique blade (17) that is provided with of following ring platform (15) rear end face.
4, crude oil anti-theft device in the sleeve pipe as claimed in claim 3, it is characterized in that, described sliding sleeve (2) and be equipped with between cap (3) and be with back-up ring (18), back-up ring (18) is axially arranged with back-up ring through hole (19), and back-up ring through hole (19) diameter greater than under encircle platform through hole (16) diameter.
5, crude oil anti-theft device in the sleeve pipe as claimed in claim 1 is characterized in that described spacer pin (12) is provided with the resilient key of spring (20) for the rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200992321U CN201354597Y (en) | 2009-02-26 | 2009-02-26 | Crude oil anti-theft device in sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200992321U CN201354597Y (en) | 2009-02-26 | 2009-02-26 | Crude oil anti-theft device in sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201354597Y true CN201354597Y (en) | 2009-12-02 |
Family
ID=41410937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200992321U Expired - Fee Related CN201354597Y (en) | 2009-02-26 | 2009-02-26 | Crude oil anti-theft device in sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201354597Y (en) |
-
2009
- 2009-02-26 CN CNU2009200992321U patent/CN201354597Y/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20110226 |