CN203640655U - Disassembling tool for anti-theft plug mounted in mouth of well - Google Patents
Disassembling tool for anti-theft plug mounted in mouth of well Download PDFInfo
- Publication number
- CN203640655U CN203640655U CN201320656294.4U CN201320656294U CN203640655U CN 203640655 U CN203640655 U CN 203640655U CN 201320656294 U CN201320656294 U CN 201320656294U CN 203640655 U CN203640655 U CN 203640655U
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- plug
- expanding
- pawl
- expansion
- disassembling tool
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Abstract
The utility model discloses a disassembling tool for an anti-theft plug mounted in the mouth of a well. The disassembling tool is suitable for plugging a bushing valve and a nozzle sleeve in the mouth of a producing well. The plug comprises a body; external threads and a blind hole are formed in the body; the blind hole is a round hole; the plug can only be disassembled with a special disassembling tool. The disassembling tool for the plug comprises an expanding body and an expanding sleeve; the expanding body is provided with a cone-shaped body; the expanding sleeve is provided with a cone-shaped expanding claw; an expanding main body of the expanding sleeve and an expanding sleeve body are in threaded connection; the disassembling tool can enter into the round hole of the anti-theft plug to unscrew the anti-theft plug. The plug is of a built-in type and has no part exposed, the blind hole is a round hole, and the plug only can be disassembled with a special tool, so that the phenomena of destroying and stealing oil can be reduced; the disassembling tool is suitable for plugging the bushing valve and the nozzle sleeve in the mouth of the producing well. The disassembling tool has the advantages that the mounting is simple, the operation is convenient, the plugging effect is good, the working intensity of workers is reduced, the working efficiency is improved, and the oil production rate and the production safety of crude oil are ensured.
Description
Technical field
The utility model belongs to the shutoff parts of petroleum industry producing well, the particularly dismantling device of well head built-in type anti-theft plug, is applicable to sleeve valve and the resistance oil nozzle sleeve of shutoff well head.
Background technology
In oil field development, some oil wells crude oil, because of stratum energy abundance, can be opened sleeve valve at the sleeve valve place of well head and just the crude oil in sleeve pipe can be emitted.Be all to use plug shutoff for the resistance oil nozzle sleeve of general well head production tree, this plug is the cylinder with external screw thread and Nei Fang blind hole, can utilize common interior square head wrench just can dismantle.Under current production environment, stolen molecule can, easily in plug, the sleeve valve place stolen of production tree, not only cause the loss of crude output, has also polluted environment simultaneously, increase post workman's labour intensity, produced and hide some dangers for and cause economic loss to oilfield safety.
Summary of the invention
The purpose of this utility model is to provide the dismantling device of well head built-in type anti-theft plug, can change by the present situation of sleeve valve and resistance oil nozzle sleeve stolen, increases stolen difficulty, reduces the generation of stolen event.Guarantee safety in production, rate while improving oil well production, reduces post workman's labour intensity.
This technical solution can reach above-mentioned purpose:
Well head built-in type anti-theft plug comprises body, and body is provided with external screw thread and blind hole, and blind hole is circular port, must use special dismantling device just can dismantle.
The dismantling device of well head built-in type anti-theft plug comprises expansion body and expanding sheath, and expansion body is provided with bullet, and expanding sheath is provided with cone expansion pawl, and the expansion body of expanding sheath is threaded with expanding sheath body; Expansion body one end is bullet, and the other end is provided with expansion body spanner side, and the expansion body at its middle part is provided with external screw thread, can probe in the circular port of well head built-in type anti-theft plug and be back-outed.
Compared with prior art, the beneficial effects of the utility model are: plug is built-in, and without exposed parts, blind hole is circular port, and dismounting needs special tool, have reduced the generation that destroys stolen phenomenon, are applicable to the shutoff of oil well casing gate and resistance oil nozzle sleeve.Blind hole rear end has been set up the anti-boring of anti-pricked and has been strengthened head, has not only improved the ability of plug opposing liquid stream erosion, has extended application life, and for having increased difficulty in this place's boring stolen.The utility model uses to be installed simply, and easy to operate, plugging effect is good, has alleviated workman's labour intensity, has improved operating efficiency, rate and crude oil production safety while guaranteeing to recover the oil.
Accompanying drawing explanation
Fig. 1 is the structural representation of well head built-in type anti-theft plug.
Fig. 2 is the structural representation of the expansion body of dismantling device.
Fig. 3 is the structural representation of the expanding sheath of dismantling device.
Fig. 4 is use state diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, well head built-in type anti-theft plug comprises body 1, and body 1 is provided with external screw thread and blind hole 2, and blind hole 2 is circular ports.The rear end of blind hole 2 is that head is strengthened in the anti-boring of anti-pricked, has the function of anti-pricked, anti-boring.
Referring to Fig. 2, Fig. 3 and Fig. 4:
The dismantling device of well head built-in type anti-theft plug comprises expansion body and expanding sheath, and expansion body is provided with bullet 3, and expanding sheath is provided with expansion pawl 6, and the expansion body 4 of expansion body is threaded with the expanding sheath body 7 of expanding sheath.Expansion body one end is bullet 3, and the other end is provided with expansion body spanner side 5, and the expansion body 4 at its middle part is provided with external screw thread.The front end external diameter of bullet 3 is greater than rear end external diameter, and its front end external diameter is less than or equal to the internal diameter of well head built-in type anti-theft plug blind hole 2.Expanding sheath body 7 one end are provided with expansion pawl 6, and the other end is provided with internal thread and expanding sheath spanner side 8, and this internal thread is connected with the external screw thread of expansion body 4.Expansion pawl 6 comprises taper pawl and extension pawl, and its taper pawl is connected with extension pawl, and taper pawl front inner diameter is large, back end inside diameter is little.The external diameter that expanding sheath body 7 is provided with expansion pawl 6 one end is less than the internal diameter of well head built-in type anti-theft plug blind hole 2, and the expansion pawl 6 on it is at least provided with three.Outside the extension pawl of expansion pawl 6 can make anterior taper pawl visit to coordinate with the bullet 3 of expansion body to the blind hole 2 of built-in type anti-theft plug, rise, tensioner, in the body 1 of built-in type anti-theft plug, is back-outed built-in type anti-theft plug.
When use, first well head built-in type anti-theft plug is packed in the clip of sleeve valve or in resistance oil nozzle sleeve, its concrete assembly and disassembly methods is as follows:
1, the expansion body of dismantling device is connected with expanding sheath;
2, bullet 3 and expansion pawl 6 are packed in the blind hole 2 of well head built-in type anti-theft plug;
3, the expansion body spanner side 5 that rotates expansion body, moves backward bullet 3, thereby makes the expansion pawl 6 of expanding sheath produce radial deformation, produces frictional force and makes dismantling device tensioner in blind hole 2 with the blind hole 2 of well head built-in type anti-theft plug; Rotation expanding sheath spanner side 8 can be connected the external screw thread of well head built-in type anti-theft plug body 1 with sleeve valve clip internal thread or resistance oil nozzle sleeve internal thread, shutoff sleeve valve or resistance oil nozzle sleeve;
4, expansion body spanner side 5, with expanding sheath spanner side 8 by rotating backward, can make the bullet 3 of expansion body produce axial displacement, thereby the radial deformation of the pawl 6 of recovering and expanding can shift out bullet 3 and expansion pawl 6 from the blind hole 2 of well head built-in type anti-theft plug.
Claims (5)
1. the dismantling device of well head built-in type anti-theft plug, is characterized in that, comprises expansion body and expanding sheath, and expansion body is provided with bullet, and expanding sheath is provided with expansion pawl, and the expansion body of expansion body is threaded with the expanding sheath body of expanding sheath; Expansion body one end is bullet, and the other end is provided with expansion body spanner side, and the expansion body at its middle part is provided with external screw thread.
2. the dismantling device of well head built-in type anti-theft plug according to claim 1, is characterized in that, the front end external diameter of described bullet is greater than rear end external diameter, and its front end external diameter is less than or equal to the internal diameter of well head built-in type anti-theft plug blind hole.
3. the dismantling device of well head built-in type anti-theft plug according to claim 1, is characterized in that, described expanding sheath body one end is provided with expansion pawl, and the other end is provided with internal thread and expanding sheath spanner side, and this internal thread is connected with the external screw thread of expansion body.
4. the dismantling device of well head built-in type anti-theft plug according to claim 3, is characterized in that, described expansion pawl comprises taper pawl and extension pawl, and its taper pawl is connected with extension pawl, and taper pawl front inner diameter is large, back end inside diameter is little.
5. the dismantling device of well head built-in type anti-theft plug according to claim 4, is characterized in that, the external diameter that described expanding sheath body is provided with expansion pawl one end is less than or equal to the internal diameter of well head built-in type anti-theft plug blind hole, and the expansion pawl on it is at least provided with three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656294.4U CN203640655U (en) | 2013-10-24 | 2013-10-24 | Disassembling tool for anti-theft plug mounted in mouth of well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320656294.4U CN203640655U (en) | 2013-10-24 | 2013-10-24 | Disassembling tool for anti-theft plug mounted in mouth of well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640655U true CN203640655U (en) | 2014-06-11 |
Family
ID=50871910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320656294.4U Expired - Fee Related CN203640655U (en) | 2013-10-24 | 2013-10-24 | Disassembling tool for anti-theft plug mounted in mouth of well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215919A (en) * | 2014-07-01 | 2016-01-06 | 中核核电运行管理有限公司 | Leakage ring outer shroud withdrawing device and installation method thereof are drawn in a kind of outer support formula valve stem packing |
| CN114986441A (en) * | 2022-07-13 | 2022-09-02 | 重庆蓝黛传动机械有限公司 | Blind hole shaft sleeve dismounting tool |
-
2013
- 2013-10-24 CN CN201320656294.4U patent/CN203640655U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215919A (en) * | 2014-07-01 | 2016-01-06 | 中核核电运行管理有限公司 | Leakage ring outer shroud withdrawing device and installation method thereof are drawn in a kind of outer support formula valve stem packing |
| CN105215919B (en) * | 2014-07-01 | 2018-06-22 | 中核核电运行管理有限公司 | Leakage ring outer shroud withdrawing device and its installation method are drawn in a kind of outer support formula valve stem packing |
| CN114986441A (en) * | 2022-07-13 | 2022-09-02 | 重庆蓝黛传动机械有限公司 | Blind hole shaft sleeve dismounting tool |
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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: 20140611 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |