CN201848658U - Plugging device of casing collar - Google Patents
Plugging device of casing collar Download PDFInfo
- Publication number
- CN201848658U CN201848658U CN2010205824749U CN201020582474U CN201848658U CN 201848658 U CN201848658 U CN 201848658U CN 2010205824749 U CN2010205824749 U CN 2010205824749U CN 201020582474 U CN201020582474 U CN 201020582474U CN 201848658 U CN201848658 U CN 201848658U
- Authority
- CN
- China
- Prior art keywords
- central tube
- plugging device
- outside
- casing collar
- bearing
- 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 provides a plugging device of a casing collar, belonging to a device for the production in an oil field. The plugging device is provided with a central tube with external threads, wherein one end of the central tube is a spindle-shaped expansion head, the other end of the central tube is provided with a handle through threads, a bearing is sheathed outside the middle of the central tube, a locking ring with a slot is arranged outside the bearing, a plurality of bosses are arranged on the surface of the excircle of the locking ring, a jacket is arranged outside the locking ring, a plurality of bayonet locks are radially arranged on the jacket, a baffle ring which is sheathed on the central tube is arranged in the front of the jacket, and a rubber barrel is sheathed outside the central tube between the baffle ring and the expansion head. The plugging device has simple and reasonable structure, is convenient to operate, and has high plugging working efficiency. When the casing collar is welded, the plugging device can plug the casing collar and lead out the oil and gas in an oil well to release pressure so that the safety of the construction can be ensured.
Description
Technical field
The utility model provides a kind of field produces device, especially a kind of plugging device of casing coupling.
Background technology
At present, in oil field oil recovery production process, stop the gate of the four-way junction of casing both sides of the well mouth of oil well adopted for a long time, can be close to the sleeve gate place by the lawless person and carry out sawing and steal.Like this, when needs drive a well when recovering the oil again, need be in the four-way junction of casing both sides by the soldering sleeve box cupling so that gate to be installed, but can't safe construction because of oil well internal leakage oil gas, can only change a whole set of four-way junction of casing at last, increased production cost and maintenance load.
Summary of the invention
Technical problem to be solved in the utility model is, provided a kind of casing coupling plugging device, and it can be when the soldering sleeve box cupling, and the shutoff casing coupling is also drawn pressure release with the oil gas in the oil well, thereby guarantees safety of construction.
The utility model is to realize like this, the casing coupling plugging device, it is with externally threaded central tube, one end of central tube is that rise head, the other end of fusoid support is equipped with handle, middle part outside by screw thread and is set with bearing, the bearing outside is equipped with the retaining ring of band slot, the outer round surface of retaining ring has a plurality of boss, the outside of retaining ring is equipped with overcoat, put outward a plurality of bayonet locks radially are installed, the overcoat front has on the baffle ring suit central tube, and baffle ring and support are risen and had packing element to be sleeved on the outside of central tube between the head.
Adopt the plugging device of said structure, simple and reasonable, easy to operate, shutoff operation efficiency height.Can when the soldering sleeve box cupling, block casing coupling and the oil gas in the oil well is drawn pressure release, guaranteed safety of construction.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the A-A profile of Fig. 1.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model.
As shown in drawings, the casing coupling plugging device of the utility model, it is with externally threaded central tube 3, one end of central tube is that fusoid support rises 1, the other end by screw thread handle 8 is installed, the outside, middle part is set with bearing 9, the bearing outside is equipped with the retaining ring 7 of band slot 71, the outer round surface of retaining ring has a plurality of boss 72, the outside of retaining ring is equipped with overcoat 6, put outward a plurality of bayonet locks 5 radially are installed, the overcoat front has on the baffle ring 4 suit central tubes, and baffle ring and support are risen and had packing element 2 to be sleeved on the outside of central tube between the head.
During use, this plugging device is placed on by in the casing coupling inner chamber of sawing.At first use the special spanner rotational lock ring of being with the plug in the slot 71 that can insert on the retaining ring, the boss of retaining ring outer round surface ejects bayonet lock, makes on its inwall that tightly is fixed on box cupling, thereby realizes this plugging device fixing in box cupling.By handle center of rotation pipe, it is moved to the box cupling outside then, outwards the support of the moving head that rises struts packing element, and it is tightly contacted with the box cupling inwall, and the interior oil gas of oil well this moment will discharge along a central tube and support inner chamber that rises.Oil gas can be guided to home at central tube handle end connecting line, realize the pressure release of oil well away from well head.After the pressure release, handle is laid down, with the clip head of needs welding from the outside of central tube with weld after the box cupling that is cut docks, special spanner counter-rotation retaining ring is used in the welding back, the boss of retaining ring outer round surface no longer heads on bayonet lock, this plugging device is taken out, get final product the mounting sleeve gate, fulfil assignment.
On the outer face of bayonet lock a plurality of latches can be arranged, to improve this plugging device reliability of fixation in box cupling.
Claims (1)
1. casing coupling plugging device, it is characterized in that, it is with externally threaded central tube (3), one end of central tube be fusoid support rise the head (1), the other end is equipped with handle (8) by screw thread, the outside, middle part is set with bearing (9), the bearing outside is equipped with the retaining ring (7) of band slot (71), the outer round surface of retaining ring has a plurality of boss (72), the outside of retaining ring is equipped with overcoat (6), put outward a plurality of bayonet locks (5) radially are installed, the overcoat front has on baffle ring (4) the suit central tube, and baffle ring and support are risen has packing element (2) to be sleeved on the outside of central tube between the head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205824749U CN201848658U (en) | 2010-10-19 | 2010-10-19 | Plugging device of casing collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205824749U CN201848658U (en) | 2010-10-19 | 2010-10-19 | Plugging device of casing collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201848658U true CN201848658U (en) | 2011-06-01 |
Family
ID=44091071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205824749U Expired - Fee Related CN201848658U (en) | 2010-10-19 | 2010-10-19 | Plugging device of casing collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201848658U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615006A (en) * | 2013-11-29 | 2014-03-05 | 中国建筑第四工程局有限公司 | Plugging tool for high-pressure jet grouting method pile bottom slag discharging construction |
| CN103645068A (en) * | 2013-11-29 | 2014-03-19 | 兖矿鲁南化肥厂 | Portable sampling device of double-screw polyformaldehyde polymerization extruder |
-
2010
- 2010-10-19 CN CN2010205824749U patent/CN201848658U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615006A (en) * | 2013-11-29 | 2014-03-05 | 中国建筑第四工程局有限公司 | Plugging tool for high-pressure jet grouting method pile bottom slag discharging construction |
| CN103645068A (en) * | 2013-11-29 | 2014-03-19 | 兖矿鲁南化肥厂 | Portable sampling device of double-screw polyformaldehyde polymerization extruder |
| CN103615006B (en) * | 2013-11-29 | 2016-04-20 | 中国建筑第四工程局有限公司 | The working capping tools of deslagging at the bottom of a kind of high-pressure rotary spraying method stake |
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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: 20110601 Termination date: 20111019 |