CN205025394U - Special compound tap of coal seam gas well - Google Patents
Special compound tap of coal seam gas well Download PDFInfo
- Publication number
- CN205025394U CN205025394U CN201520683265.6U CN201520683265U CN205025394U CN 205025394 U CN205025394 U CN 205025394U CN 201520683265 U CN201520683265 U CN 201520683265U CN 205025394 U CN205025394 U CN 205025394U
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- CN
- China
- Prior art keywords
- shell
- rotating cylinder
- central tube
- reducer union
- roller bearing
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Abstract
The utility model relates to a special compound tap of coal seam gas well, the inside of shell is equipped with center tube and center tube reducer union, the top of shell pass through thread connection owner and connect, the external connection sub -joint of center tube, the outside of center tube and center tube reducer union is equipped with the rotary drum, the sub -unit connection rotary drum reducer union of rotary drum, the upper and lower terminal surface of rotary drum is equipped with roller bearing, rotary drum and roller bearing pass through the bottom and seal inside the shell, the bottom pass through the screw and be connected with the shell, the beneficial effects of the utility model are that, brand -new tap to negative pressure efflux row buggy operation system design has played connection ground pipeline and working string to for the power fluid with return out the effect that liquid provided the runner, discharge extraction liquid that can be quick, compound faucet structure is simple, and it is convenient to connect, be convenient for dismouting and maintenance.
Description
Technical field
The utility model relates to a kind of Compound Water tap, particularly a kind of coal bed gas well specific complex water tap.
Background technology
At present, China's cbm development progressively marches toward the commercialized development stage, how to ensure that coal bed gas well stable high yield is key issue.Coal dust problem is one of principal element of commercially producing of puzzlement coal bed gas well, and the operation of row's coal dust is normally produced most important for recovery coal bed gas field.For meeting the needs of efficient thoroughly row coal dust, avoid kill-job and emptying to the infringement in coal seam, develop no killing well negative pressure jet rows pulverized coal system, make coal bed gas well can the row's of realization coal dust operation under the prerequisite of no killing well not emptying, there is the advantages such as efficiency is high, cost is low, row's coal dust is thorough, simple to operation, be adapted at coal bed gas field large-scale popularization.
For no killing well negative pressure jet rows pulverized coal system, the dewatering installation that design is applicable to this system is most important, Compound Water tap is the brand-new water tap for the design of negative pressure jet rows coal dust operating system, its Main Function: connect surface line and working string, and provide runner for power fluid and returning fluid.
Summary of the invention
The purpose of this utility model is the brand-new water tap for the design of negative pressure jet rows coal dust operating system, its Main Function: connect surface line and working string, and provides runner for power fluid and returning fluid, completes negative pressure row coal dust.
A kind of coal bed gas well specific complex water tap, comprise major joint, central tube, sealing ring, sub-joint, shell, rotating cylinder, roller bearing, screw, bottom, rotating cylinder reducer union and central tube reducer union, the inside of shell is provided with central tube and central tube reducer union, the top of described shell connects major joint by external screw thread, the outside auxiliary connection joint of described central tube, the outside of central tube and central tube reducer union is provided with rotating cylinder, the bottom of rotating cylinder connects rotating cylinder reducer union, the upper and lower end face of rotating cylinder is provided with roller bearing, described rotating cylinder and roller bearing are sealed in enclosure by bottom, described bottom is connected with shell by screw, sealing ring is provided with between described shell and rotating cylinder.
Wherein, the outside of rotating cylinder is provided with boss, the periphery of boss is sleeved on the inner headed face of shell, between the upper surface of boss and shell inner face, roller bearing is installed, between the lower surface of boss and the upper surface of bottom, roller bearing is installed, bearing makes rotating cylinder opposite shell flexible rotating, can regulate the pretightning force between bearing and shell additionally by screw.
Wherein, form annulus between central tube and shell, annulus is power fluid runner; Between central tube and shell and bottom, all sealing ring is installed, not only can realizes the sealing of power fluid, can also seal rolling bearing, effectively prevent extraneous dust from invading bearing, thus improve the working life of bearing.
The beneficial effects of the utility model are, for the brand-new water tap of negative pressure jet rows coal dust operating system design, serve and connect surface line and working string, and provide the effect of runner for power fluid and returning fluid, can discharge Produced Liquid fast; Compound Water tap structure is simple, easy to connect, is convenient to dismounting and maintenance.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In upper figure: major joint (1), central tube (2), sealing ring (3), sub-joint (4), shell (5), rotating cylinder (6), roller bearing (7), screw (8), bottom (9), rotating cylinder reducer union (10), central tube reducer union (11).
Detailed description of the invention
By reference to the accompanying drawings 1, a kind of coal bed gas well specific complex water tap that the utility model is mentioned is further described:
A kind of coal bed gas well specific complex water tap, it is characterized in that: comprise major joint 1, central tube 2, sealing ring 3, sub-joint 4, shell 5, rotating cylinder 6, roller bearing 7, screw 8, bottom 9, rotating cylinder reducer union 10 and central tube reducer union 11, the inside of shell 5 is provided with central tube 2 and central tube reducer union 11, the top of described shell 5 connects major joint 1 by external screw thread, the outside auxiliary connection joint 4 of described central tube 2, the outside of central tube 2 and central tube reducer union 11 is provided with rotating cylinder 6, the bottom of rotating cylinder 6 connects rotating cylinder reducer union 10, the upper and lower end face of rotating cylinder 6 is provided with roller bearing 7, described rotating cylinder 6 and roller bearing 7 are sealed in enclosure by bottom 9, described bottom 9 is connected with shell 5 by screw 8, sealing ring 3 is provided with between described shell 5 and rotating cylinder 6.
Wherein, the outside of rotating cylinder 6 is provided with boss, the periphery of boss is sleeved on the inner headed face of shell 5, between the upper surface of boss and shell 5 inner face, roller bearing 7 is installed, roller bearing 7 is installed between the lower surface of boss and the upper surface of bottom, bearing 7 makes rotating cylinder 6 opposite shell 5 flexible rotating, can regulate the pretightning force between bearing 7 and shell 5 additionally by screw 8.
Wherein, form annulus between central tube and shell 5, this duct provides runner for power fluid; Between central tube and shell and bottom, all sealing ring is installed, not only can realizes the sealing of power fluid, can also seal rolling bearing, effectively prevent extraneous dust from invading bearing, thus improve the working life of bearing.
Operating principle is: in the process of rushing coal dust operation, and major joint is connected with power fluid hose, and sub-joint is connected with the hose of returning fluid; Rotating cylinder lower end is connected with concentric tube box cupling by hydraulic tongs, and it is inner that sucker rod top connection is inserted in central tube reducer union, thus realizes the connection of Compound Water tap and concentric tube column.In the process connected, the tube connector of major joint outside can rotate relative to shell, thus can effectively prevent in the process be connected with concentric tube, there is wrapping phenomena in hose and Compound Water tap, in operation process, only have when Compound Water tap is with concentric tube column connection procedure, rotating cylinder 6 just rotates relative to shell 5, Compound Water tap is in the process be connected with concentric tube column, hydraulic tongs drives rotating cylinder 6 opposite shell 5 to rotate by rotating cylinder reducer union 10, but axial relative motion can't occur for rotating cylinder 6 and shell 5; Rushing in coal dust operation process, Compound Water tap inside is full of high voltage power liquid, now rotating cylinder 6 and shell 5 geo-stationary.
Claims (4)
1. a coal bed gas well specific complex water tap, it is characterized in that: comprise major joint (1), central tube (2), sealing ring (3), sub-joint (4), shell (5), rotating cylinder (6), roller bearing (7), screw (8), bottom (9), rotating cylinder reducer union (10) and central tube reducer union (11), the inside of shell (5) is provided with central tube (2) and central tube reducer union (11), the top of described shell (5) connects major joint (1) by external screw thread, the outside auxiliary connection joint (4) of described central tube (2), the outside of central tube (2) and central tube reducer union (11) is provided with rotating cylinder (6), the bottom of rotating cylinder (6) connects rotating cylinder reducer union (10), the upper and lower end face of rotating cylinder (6) is provided with roller bearing (7), described rotating cylinder (6) and roller bearing (7) are sealed in the inside of shell by bottom (9), described bottom (9) is connected with shell (5) by screw (8).
2. a kind of coal bed gas well specific complex water tap according to claim 1, it is characterized in that: the outside of described rotating cylinder (6) is provided with boss, the periphery of boss is sleeved on the inner headed face of shell (5), roller bearing (7) is installed between the upper surface of boss and shell (5) inner face, roller bearing (7) is installed between the lower surface of boss and the upper surface of bottom.
3. a kind of coal bed gas well specific complex water tap according to claim 1, is characterized in that: form annulus between described central tube (2) and shell (5), annulus is power fluid runner.
4. a kind of coal bed gas well specific complex water tap according to claim 1, is characterized in that: be provided with sealing ring between described shell (5) and rotating cylinder (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683265.6U CN205025394U (en) | 2015-09-07 | 2015-09-07 | Special compound tap of coal seam gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520683265.6U CN205025394U (en) | 2015-09-07 | 2015-09-07 | Special compound tap of coal seam gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205025394U true CN205025394U (en) | 2016-02-10 |
Family
ID=55257937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520683265.6U Expired - Fee Related CN205025394U (en) | 2015-09-07 | 2015-09-07 | Special compound tap of coal seam gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205025394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888588A (en) * | 2016-05-10 | 2016-08-24 | 刘明水 | Two-channel reverse circulation tap |
-
2015
- 2015-09-07 CN CN201520683265.6U patent/CN205025394U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888588A (en) * | 2016-05-10 | 2016-08-24 | 刘明水 | Two-channel reverse circulation tap |
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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: 20160210 Termination date: 20160907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |