CN203939470U - A kind of down-hole frock pneumatic unit - Google Patents
A kind of down-hole frock pneumatic unit Download PDFInfo
- Publication number
- CN203939470U CN203939470U CN201420286492.0U CN201420286492U CN203939470U CN 203939470 U CN203939470 U CN 203939470U CN 201420286492 U CN201420286492 U CN 201420286492U CN 203939470 U CN203939470 U CN 203939470U
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- cavity
- piston body
- housing
- pneumatic unit
- utility
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Abstract
The utility model provides a kind of down-hole frock pneumatic unit, comprise housing, be arranged at plunger shaft, piston body in housing, piston body is divided into the first cavity and the second cavity by plunger shaft, housing has and is communicated with the first cavity and extraneous first passage, in the second cavity, be provided with elastic device, housing is also provided with crankshaft-and-connecting-rod, and one end of connecting rod is articulated with bent axle, and the other end of connecting rod is articulated with piston body.The utility model can connect by air pump the first passage of this down-hole frock pneumatic unit, regulates the rotation of bent axle.Can alleviate the weight of well dynamic mechanism, especially in the deep-well of thousands of meters, because the utility model employing is pneumatic, even if therefore the series connection of a plurality of down-holes frock pneumatic unit can not cause weight excessive yet, also having alleviated breaks down may produce the impact of consequence.
Description
Technical field
The utility model relates to a kind of downhole operations instrument, relates in particular to a kind of pneumatic downhole operations instrument.
Background technology
Downhole tool is operated under the environment of a very severe, must can bearing object corrosion, and high temperature and high pressure.For fear of the unnecessary accident producing oil and natural gas, downhole tool must be dependable performance, and is easy to take out from well when fault.
Downhole tool is arranged in the oil well of the degree of depth more than several kms conventionally, and during fault, taking out the instrument blocking is a very expensive and operation consuming time.Generally, downhole tool is the synthetic combination equipment of set of tools with difference in functionality, for carrying out various downhole operations.For example, combination equipment can comprise driver element, anchoring instrument, extract assembly etc.
Extreme condition, as in high pressure, high temperature and sour environment, includes extraction assembly and easily breaks down at interior combination equipment, and then block drilling well, has greatly affected production, even may cause unnecessary shutdown.
Current downhole tool weight ratio is larger, and especially in the degree of depth in the oil well more than several kms, overweight instrument has affected stability and the safety of device.In addition,, when breaking down, what remove the dangerous condition is costly.
Utility model content
The purpose of this utility model is to provide a kind of down-hole frock pneumatic unit, solves above-mentioned one or more problem of prior art problem.
According to an aspect of the present utility model, a kind of down-hole frock pneumatic unit is provided, comprise housing, be arranged at the plunger shaft in housing, the piston body in fitting piston chamber, piston body is divided into the first cavity and the second cavity by plunger shaft, housing has and is communicated with the first cavity and extraneous first passage, the second cavity has and is communicated with extraneous second channel, in the second cavity, be provided with elastic device, one end of elastic device props up piston body, the other end of elastic device props up the end wall of the second cavity, housing is also provided with crankshaft-and-connecting-rod, one end of connecting rod is articulated with bent axle, the other end of connecting rod is articulated with piston body.
The utility model provides a kind of down-hole frock pneumatic unit, can by air pump, connect the first passage of this down-hole frock pneumatic unit, by the size of adjustable pressure, regulates the rotation of bent axle.Of the present utility modelly can reach the weight that alleviates well dynamic mechanism, especially in the deep-well of thousands of meters, because the utility model employing is pneumatic, even if therefore the series connection of a plurality of down-holes frock pneumatic unit can not cause weight excessive yet, also having alleviated breaks down may produce the impact of consequence.
In some embodiments, elastic device is the spring in compressive state.Simple in structure, easily implement.
In some embodiments, piston body is arranged with sealing ring.Improve the sealing of device.
Accompanying drawing explanation
The structural representation of a kind of down-hole frock pneumatic unit of a kind of embodiment that Fig. 1 provides for the utility model.
The specific embodiment
Below in conjunction with Figure of description, the utility model is described in more detail.
As shown in Figure 1, a kind of down-hole frock pneumatic unit that the utility model provides, it comprises housing 1, is opened in the plunger shaft 2 in housing 1, the piston body 3 in fitting piston chamber 2, and piston body 3 is divided into the first cavity 21 and the second cavity 22 by plunger shaft 2.Housing 1 also has and is communicated with the first cavity 21 and extraneous first passage 41.The second cavity has and is communicated with extraneous second channel 42.In the second cavity 22, be provided with elastic device 5, in the present embodiment, elastic device 5 is the spring in compressive state.One end of elastic device 5 props up piston body 3, and the other end of elastic device 5 props up the end wall of the second cavity 22.
Housing 1 is also provided with bent axle 6 and connecting rod 7, and in those skilled in the art's conception, housing 1 is provided with axis hole, and bent axle 6 is integrally formed with the rotating shaft (not shown) that coordinates axis hole, and bent axle 6 is realized rotatable setting by rotating shaft and coordinating of axis hole and is housing 1.One end of connecting rod 7 is articulated with bent axle 6, and the other end of connecting rod 7 is articulated with piston body 3.In the above-mentioned conception that is hinged on people from this area, also can adopt general axis hole and rotating shaft to reach, repeat no more herein.
The utility model provides a kind of down-hole frock pneumatic unit, can connect by air pump the first passage 41 of this down-hole frock pneumatic unit, by regulating the size of the first cavity 21 internal gas pressures, second channel 42 is as the air-vent of the second cavity 22, guarantee the second cavity 22 internal gas pressure balances, and then reach the rotation that regulates bent axle.Specific works principle is as follows, and because an end face of piston body 3 is for promoted by air pressure, the other end of piston body 3 is that Compress Spring promotes, the size of adjustable pressure, just can make piston body 3 in plunger shaft 2, do piston movement back and forth, and then drivening rod 7, be further with dynamic crankshaft 6 to rotate.For downhole operations frock provides dynamic foundation.
The beneficial effects of the utility model are to reach the weight that alleviates well dynamic mechanism, especially in the deep-well of thousands of meters, because the utility model adopts pneumatic, even if therefore the series connection of a plurality of down-holes frock pneumatic unit can not cause weight excessive yet, also having alleviated breaks down may produce the impact of consequence.
Further, piston body 3 can be arranged with sealing ring 8.Can improve the tightness of device.
More than statement is only optimal way of the present utility model; it should be pointed out that to those skilled in the art, do not departing under the prerequisite of the utility model creation design; can also make some distortion and improvement, within these also should be considered as protection domain of the present utility model.
Claims (3)
1. a down-hole frock pneumatic unit, it is characterized in that, comprise housing (1), be arranged at the plunger shaft (2) in described housing (1), the piston body (3) that coordinates described plunger shaft (2), described piston body (3) is divided into the first cavity (21) and the second cavity (22) by described plunger shaft (2), described housing (1) has and is communicated with described the first cavity (21) and extraneous first passage (41), described the second cavity (22) has and is communicated with extraneous second channel (42), in described the second cavity (22), be provided with elastic device (5), one end of described elastic device (5) props up described piston body (3), the other end of described elastic device (5) props up the end wall of described the second cavity (22), described housing (1) is also provided with bent axle (6) and connecting rod (7), one end of described connecting rod (7) is articulated with described bent axle (6), the other end of described connecting rod (7) is articulated with described piston body (3).
2. a kind of down-hole according to claim 1 frock pneumatic unit, is characterized in that, described elastic device (5) is the spring in compressive state.
3. a kind of down-hole according to claim 1 frock pneumatic unit, is characterized in that, described piston body (3) is arranged with sealing ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286492.0U CN203939470U (en) | 2014-05-30 | 2014-05-30 | A kind of down-hole frock pneumatic unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420286492.0U CN203939470U (en) | 2014-05-30 | 2014-05-30 | A kind of down-hole frock pneumatic unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939470U true CN203939470U (en) | 2014-11-12 |
Family
ID=51858793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420286492.0U Expired - Fee Related CN203939470U (en) | 2014-05-30 | 2014-05-30 | A kind of down-hole frock pneumatic unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075382A (en) * | 2019-12-11 | 2020-04-28 | 中煤科工集团西安研究院有限公司 | Coal mine underground horizontal deep hole array type detector arrangement device and construction method thereof |
-
2014
- 2014-05-30 CN CN201420286492.0U patent/CN203939470U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075382A (en) * | 2019-12-11 | 2020-04-28 | 中煤科工集团西安研究院有限公司 | Coal mine underground horizontal deep hole array type detector arrangement device and construction method thereof |
| CN111075382B (en) * | 2019-12-11 | 2022-02-01 | 中煤科工集团西安研究院有限公司 | Coal mine underground horizontal deep hole array type detector arrangement device and construction method thereof |
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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: 20141112 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |