CN205778646U - Air lift counter circulation drill rod - Google Patents
Air lift counter circulation drill rod Download PDFInfo
- Publication number
- CN205778646U CN205778646U CN201620515118.2U CN201620515118U CN205778646U CN 205778646 U CN205778646 U CN 205778646U CN 201620515118 U CN201620515118 U CN 201620515118U CN 205778646 U CN205778646 U CN 205778646U
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- hole
- appendix
- top connection
- rod body
- 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
This utility model relates to a kind of air lift counter circulation drill rod, including drilling rod in the hole being connected and hole bottom drilling rod, drilling rod body and appendix in drilling rod includes top connection, lower contact, hole in hole；Appendix is positioned at the both sides of hole drilling rod body, and the two ends of appendix are welded as a whole with upper and lower joint sealing, and the end face of top connection is provided with O-ring seals；Hole bottom drilling rod includes top connection, lower contact, hole bottom drilling rod body, blender and appendix；Appendix is positioned at bottom drilling rod body both sides, hole；One end of appendix seals with top connection and is welded as a whole, and the other end of appendix connects blender, and blender connects with hole bottom drilling rod chamber body；The end face of top connection is provided with O-ring seals.Use technique scheme, making double-wall drill pipe structure simplify greatly, drilling rod weight is essentially identical with common drilling rod, low cost, lightweight, seal simple and reliable, the most simple to operate, labor intensity is low, subsidiary operation time is short, improves work efficiency.
Description
Technical field
This utility model belongs to drilling equipment manufacturing technology field, particularly relates to a kind of novel air lift counter circulation drill rod.
Background technology
At present, traditional counter circulation drill rod is that double-wall drill pipe is also known as double-layer drill rod.(claimed inner tube with outer by inside and outside two-layer drilling rod
Pipe) formed.Compressed air is by the annular gap constituted between inner and outer pipe, and arrives blender along annular gap,
Be mixed to form a kind of density less than the slurry gas mixture of mud with the mud in inner tube, slurry gas mixture because its proportion is little on
Rising, in conduit, blender bottom forms negative pressure, and mud below rises under the effect of negative pressure, and at air pressure momentum
Under synergy, constantly mending slurry, the mud rising to blender continues to rise after compressed air formation gas pulp mixture,
Thus form flowing, because the ring-type basal area that the basal area of inner tube is significantly smaller than between conduit outer wall and pile lining, just define
The great reacting cycle of flow velocity, flow, and cutting carring returns from inner tube, thus form gas lift reverse circulation, every double-wall drill pipe
Between be attached with the screw thread of outer tube, ensure transmission moment of torsion and pressure.Use inserting mode more between inner tube, play circulation and rinse
The effect of medium, splicing position has sealing device.Owing to counter circulation drill rod uses double-walled construction, therefore processing and manufacturing cost is significantly
Rising, price is about 2 times of common drilling rod, and double-walled construction causes drilling rod weight to increase simultaneously, reduces rig and promotes energy
Power, adds operator and loads and unloads the labor intensity of drilling rod, and additionally internal layer drilling rod easily causes compression owing to sealing structure problem
Air is revealed and is caused reverse circulation system to lose efficacy, and adds the time of less important work, reduces work efficiency.
Summary of the invention
This utility model provides a kind of and eliminates double-walled construction disadvantage, structure for solving technical problem present in known technology
Simply, lightweight, low cost, the reliable air lift counter circulation drill rod of sealing.
This utility model is adopted the technical scheme that by solving technical problem present in known technology:
A kind of air lift counter circulation drill rod, including drilling rod in the hole being connected and hole bottom drilling rod, in described hole, drilling rod includes connecing
Drilling rod body and appendix in head, lower contact, hole；Described appendix is positioned at the both sides of hole drilling rod body, gas transmission
The two ends of pipe are welded as a whole with upper and lower joint sealing, and the end face of described top connection is provided with O-ring seals；
Described hole bottom drilling rod includes top connection, lower contact, hole bottom drilling rod body, blender and appendix；Appendix position
In bottom drilling rod body both sides, hole；One end of appendix seals with top connection and is welded as a whole, and the other end of appendix connects mixed
Clutch, described blender connects with hole bottom drilling rod chamber body；Described blender is positioned at the centre position of hole bottom drilling rod body；
The end face of above-mentioned top connection is provided with O-ring seals.
This utility model has the advantage that with good effect: owing to this utility model uses technique scheme, make double-walled
Jackrod structure simplifies greatly, and drilling rod weight is essentially identical with common drilling rod, low cost, lightweight, seal simple and reliable,
The most simple to operate, labor intensity is low, subsidiary operation time is short, improves work efficiency.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
In figure: 100, drilling rod in hole；101, top connection；102, lower contact；103；Drilling rod body in hole；104, defeated
Trachea；105, O-ring seals；200, hole bottom drilling rod；201, top connection；202, lower contact；203；Hole bottom drilling rod
Body；204, blender；205, appendix；206, O-ring seals.
Detailed description of the invention
For summary of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following example, and coordinate
Accompanying drawing describes in detail as follows:
Referring to Fig. 1, a kind of air lift counter circulation drill rod, including drilling rod 100 in the hole being connected and hole bottom drilling rod 200, institute
In stating hole, drilling rod includes drilling rod body 103 and appendix 104 in top connection 101, lower contact 102, hole；Described is defeated
Trachea 104 is positioned at the both sides of hole drilling rod body 103, and the two ends of appendix 104 and upper and lower joint sealing are welded as one
Body, the end face of described top connection 101 is provided with O-ring seals 105；
Described hole bottom drilling rod 200 include top connection 201, lower contact 202, hole bottom drilling rod body 203, blender 204 with
And appendix 205；Appendix 205 is positioned at bottom drilling rod body 203 both sides, hole；One end of appendix 205 and top connection 201
Sealing is welded as a whole, and the other end of appendix 205 connects blender 204, described blender 204 and hole bottom drilling rod body
203 inner space, make compressed air can be input to inside drilling rod；Described blender 204 is positioned at hole bottom drilling rod body 203
Centre position；The end face of above-mentioned top connection 201 is provided with O-ring seals 206.
Operation principle of the present utility model is:
When needing construction, it is essentially identical that air lift counter circulation drill rod is connected to common drilling rod, simply adds 2 at drilling rod end face
Individual sealing ring, when using gas lift reverse circulation technique to creep into, the bottom drilling rod lower end, hole of band blender is connected with reverse circulation drill bit
(or being connected with common drilling rod), drilling rod in upper termination gas lift reverse circulation hole.This novel air lift counter circulation drill rod can root
According to different hole depths, the drilling rod of aperture coupling different size.
The above is only to preferred embodiment of the present utility model, not makees this utility model any pro forma
Limit, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modify, belong in the range of technical solutions of the utility model.
Claims (1)
1. an air lift counter circulation drill rod, it is characterised in that: include drilling rod (100) and hole bottom drilling rod in the hole being connected
(200) in, in described hole, drilling rod includes top connection (101), lower contact (102), hole drilling rod body (103) with
And appendix (104)；Described appendix (104) is positioned at the both sides in hole drilling rod body (103), appendix (104)
Two ends be welded as a whole with upper and lower joint sealing, the end face of described top connection (101) is provided with O-ring seals (105)；
Described hole bottom drilling rod (200) include top connection (201), lower contact (202), hole bottom drilling rod body (203),
Blender (204) and appendix (205)；Appendix (205) is positioned at bottom drilling rod body (203) both sides, hole；Defeated
One end of trachea (205) seals with top connection (201) and is welded as a whole, and the other end of appendix (205) connects mixing
Device (204), described blender (204) and hole bottom drilling rod body (203) inner space, make compressed air to input
Inside drilling rod；Described blender (204) is positioned at the centre position in hole bottom drilling rod body (203)；Above-mentioned top connection
(201) end face is provided with O-ring seals (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515118.2U CN205778646U (en) | 2016-05-30 | 2016-05-30 | Air lift counter circulation drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620515118.2U CN205778646U (en) | 2016-05-30 | 2016-05-30 | Air lift counter circulation drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778646U true CN205778646U (en) | 2016-12-07 |
Family
ID=58138847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620515118.2U Expired - Fee Related CN205778646U (en) | 2016-05-30 | 2016-05-30 | Air lift counter circulation drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863536A (en) * | 2016-05-30 | 2016-08-17 | 天津探矿机械有限公司 | Gas-lift reverse circulation drill rod |
-
2016
- 2016-05-30 CN CN201620515118.2U patent/CN205778646U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863536A (en) * | 2016-05-30 | 2016-08-17 | 天津探矿机械有限公司 | Gas-lift reverse circulation drill rod |
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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: 20161207 Termination date: 20200530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |