CN203879431U - Switching device applied to down-hole sampling tool - Google Patents
Switching device applied to down-hole sampling tool Download PDFInfo
- Publication number
- CN203879431U CN203879431U CN201420314295.5U CN201420314295U CN203879431U CN 203879431 U CN203879431 U CN 203879431U CN 201420314295 U CN201420314295 U CN 201420314295U CN 203879431 U CN203879431 U CN 203879431U
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- China
- Prior art keywords
- switching device
- push rod
- sampling instrument
- pressure
- bearing
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Abstract
The utility model discloses a switching device applied to a down-hole sampling tool. The switching device comprises a pup joint used for being connected with the down-hole sampling tool, and a telescopic push rod extending out of the center of the pup joint, wherein the telescopic push rod is connected with a control rod of the down-hole sampling tool. When the telescopic push rod stretches forwards or retracts backwards, the down-hole sampling tool is opened or closed. The switching device further comprises a pressure-bearing protective barrel and a connector, wherein the connector and the pup joint are arranged at the two ends of the pressure-bearing protective barrel respectively, and seal the two ends of the pressure-bearing protective barrel, and a driving device is arranged in the pressure-bearing protective barrel, connected with the telescopic push rod, and drives the telescopic push rod to stretch forwards or retract backwards. According to the switching device applied to the down-hole sampling tool, because the driving device is arranged in the pressure-bearing protective barrel, the down-hole sampling tool can be accurately opened or closed in time in a down-hole high-pressure complex environment through the driving device, and various defects in the process of closing an instrument sampling barrel in the prior art are solved.
Description
Technical field
The utility model relates to a kind of switching device, relates in particular to a kind of switching device that is applied to well sampling instrument.
Background technology
At present, in field produces, displacement of reservoir oil by filling water process application is extensive, and the general latus rectum 60mm of water injection well left and right, in depth descends hundreds of to several kms.
Using special sampling instrument to extract down-hole water sample and analyzing water quality is to understand the important means of water filling quality.Water injection well underground work environment is special, use be special downhole tool.Equipment external diameter requires to be less than 40mm, and withstand voltage 50MPa is corrosion-resistant, has certain mechanical strength.
Existing sampling instrument is closed employing mechanical system: paddle type mill, impacting type, wall-hanging etc., and exist and can only complete one-off, accuracy of action, reliability are low, and easily occur the fall accident of well of instrument.
Utility model content
The utility model, for the drawback of prior art, provides a kind of switching device that is applied to well sampling instrument.
The switching device that is applied to well sampling instrument described in the utility model, comprises the pipe nipple for connecting downhole sampling instrument, and the flexible push rod stretching out from described pipe nipple center, and described flexible push rod is connected with the control lever of described well sampling instrument; In the time that described flexible push rod protracts or bounces back, described well sampling TO or close; Also comprise pressure-bearing protection cylinder and connector, described connector and pipe nipple are divided into the two ends of pressure-bearing protection cylinder and described pressure-bearing are protected to the closed at both ends of cylinder;
In described pressure-bearing protection cylinder, be provided with drive unit, described drive unit is connected with described flexible push rod, and drives described flexible push rod protract or bounce back.
In the switching device that is applied to well sampling instrument described in the utility model, described pipe nipple center is provided with high-pressure sealing component, and described flexible push rod stretches out from the center of described high-pressure sealing component.Further, described high-pressure sealing component comprises joint ring, high pressure sealing bearing and bearing cover; Wherein, described joint ring is arranged at the perforate inside at pipe nipple center, and described high pressure sealing bearing is arranged at the perforate end at pipe nipple center, described bearing cover gland on high pressure sealing bearing.
In the switching device that is applied to well sampling instrument described in the utility model, in described pressure-bearing protection cylinder, be provided with fixing and mounting bracket, described drive unit is installed on this fixing and mounting bracket.
In the switching device that is applied to well sampling instrument described in the utility model, described drive unit comprises battery, drive motors and axial converter;
Wherein, described battery is drive motors power supply;
One end of described axial converter is connected in the output shaft of drive motors, and the other end is connected in flexible push rod.
In the switching device that is applied to well sampling instrument described in the utility model, described axial converter comprises that screw rod and one end arrange female slide block;
Wherein, one end of described screw rod is fixedly connected with the output shaft of drive motors, and the other end of this screw rod is connected with the screw-internal thread fit of slide block by its external screw thread;
The other end of described slide block is fixedly connected with flexible push rod.
In the switching device that is applied to well sampling instrument described in the utility model, also comprise deceleration device, described deceleration device is arranged between screw rod and the output shaft of drive motors; The input of this deceleration device is fixedly connected with the output shaft of drive motors, and the output of this deceleration device is fixedly connected with screw rod.
In the switching device that is applied to well sampling instrument described in the utility model, also comprise control circuit board, described control circuit board is battery-powered, and its output and drive motors are electrically connected.
In the switching device that is applied to well sampling instrument described in the utility model, described battery is lithium battery.
In the switching device that is applied to well sampling instrument described in the utility model; by drive unit being set in described pressure-bearing protection cylinder; thereby utilize drive unit complete under down-hole high pressure complex environment down-hole sampling instrument on time, open or close accurately, to solve many drawbacks of closing instrument sample bucket in prior art.
Brief description of the drawings
Fig. 1 is the structural representation of the switching device that is applied to well sampling instrument described in the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, to make those skilled in the art can implement according to this with reference to manual word.
As shown in Figure 1, the switching device that is applied to well sampling instrument described in the utility model, comprise the pipe nipple 1 for connecting downhole sampling instrument (not shown), and the flexible push rod 3 stretching out from the center 11 of described pipe nipple 1, described flexible push rod 3 is connected with the control lever of described well sampling instrument; In the time that described flexible push rod 3 protracts or bounces back, described well sampling TO or close.For convenience of opening or closing of described well sampling instrument controlled; in the utility model; also be provided with pressure-bearing protection cylinder 7 and connector 8, described pressure-bearing protection cylinder 7 is made up of corrosion-resistant stainless steel material, is not destroyed by high pressure for the protection of the equipment such as internal circuit board and motor.Described connector 8, for connecting steel wire ropes cap, makes steel wire reliably be connected with instrument, and described connector 8 is divided into the two ends of pressure-bearing protection cylinder 7 with pipe nipple 1 and described pressure-bearing is protected to the closed at both ends of cylinder 7.In described pressure-bearing protection cylinder 7, be provided with drive unit, described drive unit is connected with described flexible push rod 3, and drives described flexible push rod protract or bounce back.
In the utility model; by protect the cylinder 7 interior drive units that arrange in described pressure-bearing; thereby utilize drive unit complete under down-hole high pressure complex environment down-hole sampling instrument on time, open or close accurately, to solve many drawbacks of closing instrument sample bucket in prior art.
As shown in Figure 1, be provided with high-pressure sealing component at the center 11 of described pipe nipple 1, described flexible push rod 3 stretches out from the center of described high-pressure sealing component.Particularly, described high-pressure sealing component comprises joint ring 21, high pressure sealing bearing 22 and bearing cover 23. wherein, described joint ring 21 is arranged at the perforate inside at pipe nipple center 11, described high pressure sealing bearing 22 is arranged at the perforate end at pipe nipple center 11, and 23 glands of described bearing cover are on high pressure sealing bearing 22.Described joint ring 21 can guarantee in down-hole high pressure environment flexible push rod 3 slide or inactive state under can effective sealing; Described high pressure sealing bearing 22 can make described pressure-bearing protection cylinder 7 interior maintenance normal pressures, to guarantee that circuit board 6 and drive motors 92 normally work.23 of described bearing covers, for compressing high pressure sealing bearing 22, can not move axially it.
Still as shown in Figure 1, in described pressure-bearing protection cylinder 7, be provided with fixing and mounting bracket 5, described drive unit is installed on this fixing and mounting bracket 5.Particularly, described drive unit comprises battery 91, drive motors 92 and axial converter.Wherein, described battery 91 is powered for drive motors 92, and this battery 91 can adopt the lithium battery that volume is little; One end of described axial converter is connected in the output shaft of drive motors 92, and the other end is connected in flexible push rod 3, and the effect of this axial converter is rotatablely moving of the output shaft of drive motors 92 to be converted to the axial stretching motion of the flexible push rod 3 of traction.
As shown in Figure 1, described axial converter comprises that screw rod 42 and one end are provided with the slide block 41 of internal thread 411.Wherein, one end of described screw rod 42 is fixedly connected with the output shaft of drive motors 92, and the other end of this screw rod 42 is connected by its external screw thread 421 and the internal thread 411 of slide block 41; The other end of described slide block 41 is fixedly connected with flexible push rod 3.For example, in the time of the output shaft forward of drive motors 92, described screw rod 42, protracts thereby promote described flexible push rod 3 by slide block 41 by threaded engagement with slide block 41; In the time that the output shaft of drive motors 92 reverses, described screw rod 42, bounces back thereby draw described flexible push rod 3 by slide block 41 by threaded engagement with slide block 41.
In the utility model, be also provided with deceleration device 93, described deceleration device 93 is arranged between screw rod 42 and the output shaft of drive motors 92; The input of this deceleration device 93 is fixedly connected with the output shaft of drive motors 92, and the output of this deceleration device 93 is fixedly connected with screw rod 42.Described deceleration device 93 forms by organizing metal gear more, reduces drive motors 92 rotating speeds by the work of metal-toothed wheels, thereby increases driving torque, to meet flexible push rod 3 required thrusts or pulling force.
In the utility model, also can be at the described pressure-bearing protection cylinder 7 interior control circuit boards 6 that arrange, described control circuit board 6 is powered by battery 91, and its output and drive motors 92 are electrically connected.This control circuit board 6 can the preset program that drive motors 92 is controlled, and for example, adopts working time and the rotating manner of programmable controller to drive motors 92 to control, and, also can monitor moment of torsion meanwhile, and super torsion protection function is provided.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in manual and embodiment, it can be applied to the various fields of the present utility model that are applicable to completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend of describing.
Claims (9)
1. be applied to a switching device for well sampling instrument, comprise the pipe nipple for connecting downhole sampling instrument, and the flexible push rod stretching out from described pipe nipple center, described flexible push rod is connected with the control lever of described well sampling instrument; In the time that described flexible push rod protracts or bounces back, described well sampling TO or close; It is characterized in that, also comprise pressure-bearing protection cylinder and connector, described connector and pipe nipple are divided into the two ends of pressure-bearing protection cylinder and described pressure-bearing are protected to the closed at both ends of cylinder;
In described pressure-bearing protection cylinder, be provided with drive unit, described drive unit is connected with described flexible push rod, and drives described flexible push rod protract or bounce back.
2. the switching device that is applied to well sampling instrument as claimed in claim 1, is characterized in that, described pipe nipple center is provided with high-pressure sealing component, and described flexible push rod stretches out from the center of described high-pressure sealing component.
3. the switching device that is applied to well sampling instrument as claimed in claim 2, is characterized in that, described high-pressure sealing component comprises joint ring, high pressure sealing bearing and bearing cover; Wherein, described joint ring is arranged at the perforate inside at pipe nipple center, and described high pressure sealing bearing is arranged at the perforate end at pipe nipple center, described bearing cover gland on high pressure sealing bearing.
4. the switching device that is applied to well sampling instrument as claimed in claim 1, is characterized in that, in described pressure-bearing protection cylinder, is provided with fixing and mounting bracket, and described drive unit is installed on this fixing and mounting bracket.
5. the switching device that is applied to well sampling instrument as claimed in claim 4, is characterized in that, described drive unit comprises battery, drive motors and axial converter;
Wherein, described battery is drive motors power supply;
One end of described axial converter is connected in the output shaft of drive motors, and the other end is connected in flexible push rod.
6. the switching device that is applied to well sampling instrument as claimed in claim 5, is characterized in that, described axial converter comprises that screw rod and one end arrange female slide block;
Wherein, one end of described screw rod is fixedly connected with the output shaft of drive motors, and the other end of this screw rod is connected with the screw-internal thread fit of slide block by its external screw thread;
The other end of described slide block is fixedly connected with flexible push rod.
7. the switching device that is applied to well sampling instrument as claimed in claim 6, is characterized in that, also comprises deceleration device, and described deceleration device is arranged between screw rod and the output shaft of drive motors; The input of this deceleration device is fixedly connected with the output shaft of drive motors, and the output of this deceleration device is fixedly connected with screw rod.
8. the switching device that is applied to well sampling instrument as claimed in claim 7, is characterized in that, also comprises control circuit board, and described control circuit board is battery-powered, and its output and drive motors are electrically connected.
9. the switching device that is applied to well sampling instrument as claimed in claim 5, is characterized in that, described battery is lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314295.5U CN203879431U (en) | 2014-06-12 | 2014-06-12 | Switching device applied to down-hole sampling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314295.5U CN203879431U (en) | 2014-06-12 | 2014-06-12 | Switching device applied to down-hole sampling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879431U true CN203879431U (en) | 2014-10-15 |
Family
ID=51679943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314295.5U Expired - Fee Related CN203879431U (en) | 2014-06-12 | 2014-06-12 | Switching device applied to down-hole sampling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879431U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505563A (en) * | 2018-12-20 | 2019-03-22 | 中国石油集团川庆钻探工程有限公司 | Downhole electric drives mechanical interface and its working method |
| CN110412238A (en) * | 2019-08-30 | 2019-11-05 | 贵州大学 | A kind of gas cane of telescopic collection of coal mine mine gas |
-
2014
- 2014-06-12 CN CN201420314295.5U patent/CN203879431U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505563A (en) * | 2018-12-20 | 2019-03-22 | 中国石油集团川庆钻探工程有限公司 | Downhole electric drives mechanical interface and its working method |
| CN110412238A (en) * | 2019-08-30 | 2019-11-05 | 贵州大学 | A kind of gas cane of telescopic collection of coal mine mine gas |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20160612 |