CN105863536A - Gas-lift reverse circulation drill rod - Google Patents
Gas-lift reverse circulation drill rod Download PDFInfo
- Publication number
- CN105863536A CN105863536A CN201610375728.1A CN201610375728A CN105863536A CN 105863536 A CN105863536 A CN 105863536A CN 201610375728 A CN201610375728 A CN 201610375728A CN 105863536 A CN105863536 A CN 105863536A
- Authority
- CN
- China
- Prior art keywords
- hole
- drill rod
- drilling rod
- rod body
- appendix
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims description 50
- 238000000034 method Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract 2
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a gas-lift reverse circulation drill rod which comprises an in-hole drill rod and a hole-bottom drill rod connected with each other. The in-hole drill rod comprises an upper joint, a lower joint, an in-hole drill rod body and gas pipes, wherein the gas pipes are positioned on the two sides of the in-hole drill rod body, the two ends of the gas pipe are in sealed welding with the upper and lower joints into a whole, and an O-shaped sealing ring is arranged on the end surface of the upper joint; and the hole-bottom drill rod comprises an upper joint, a lower joint, a hole-bottom drill rod body, a mixer and gas pipes, wherein the gas pipes are positioned on the two sides of the hole-bottom drill rod body, one end of the gas pipe is in sealed welding with the upper joint while the other end of the gas pipe is connected with the mixer, the mixer is communicated with the inner cavity of the hole-bottom drill rod body, and an O-shaped sealing ring is arranged on the end surface of the upper joint. By adopting the technical scheme, the structure of a double-wall drill rod is greatly simplified, the weight of the drill rod is basically equal to that of a common drill rod, the cost is low, the weight is light, and the sealing is simple and reliable; and therefore, in the using process, the operation is simple, the labor intensity is low, the auxiliary operation time is short, and the working efficiency is improved.
Description
Technical field
The invention belongs to drilling equipment manufacturing technology field, particularly relate 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 labour 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
The present invention solves that technical problem present in known technology provides a kind of double-walled construction disadvantage that eliminates, simple in construction,
Lightweight, low cost, the reliable air lift counter circulation drill rod of sealing.
The present invention solves that technical problem is adopted the technical scheme that 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.
The present invention has the advantage that with good effect: owing to the present invention uses technique scheme, makes double-wall drill pipe structure
Simplifying greatly, drilling rod weight is essentially identical with common drilling rod, low cost, lightweight, seal simple and reliable, therefore exist
During use simple to operate, labour intensity is low, subsidiary operation time is short, improves operating efficiency.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In figure: 100, drilling rod in hole；101, top connection；102, lower contact；103；Drilling rod body in hole；104, defeated
Tracheae；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 the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and coordinate accompanying drawing
Describe 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
Tracheae 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.
The operation principle of the present invention 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 presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, all
It is based on the technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, belongs to
In the range of technical solution of the present invention.
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 tracheae (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 |
|---|---|---|---|
| CN201610375728.1A CN105863536A (en) | 2016-05-30 | 2016-05-30 | Gas-lift reverse circulation drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610375728.1A CN105863536A (en) | 2016-05-30 | 2016-05-30 | Gas-lift reverse circulation drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105863536A true CN105863536A (en) | 2016-08-17 |
Family
ID=56641957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610375728.1A Pending CN105863536A (en) | 2016-05-30 | 2016-05-30 | Gas-lift reverse circulation drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105863536A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681995A (en) * | 2020-12-30 | 2021-04-20 | 中煤科工集团西安研究院有限公司 | Adjustable mixer, no-lifting drilling gas-lift reverse circulation drilling tool and drilling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6698976B1 (en) * | 1998-08-19 | 2004-03-02 | Songdo Technopark | Grouting pipe equipment and method of grouting using the same for an underground water well |
| CN102900357A (en) * | 2012-09-27 | 2013-01-30 | 三一重工股份有限公司 | Rotary drilling rig and brine collecting method |
| CN203905869U (en) * | 2014-05-31 | 2014-10-29 | 中交一公局第三工程有限公司 | High-pressure water-flushing air-lift reverse circulation hole cleaning device |
| CN105041255A (en) * | 2015-08-11 | 2015-11-11 | 中煤科工集团西安研究院有限公司 | Hole bottom combined drilling tool used for fishing broken falling objects in drilled hole and fishing method of hole bottom combined drilling tool |
| CN205778646U (en) * | 2016-05-30 | 2016-12-07 | 天津探矿机械有限公司 | Air lift counter circulation drill rod |
-
2016
- 2016-05-30 CN CN201610375728.1A patent/CN105863536A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6698976B1 (en) * | 1998-08-19 | 2004-03-02 | Songdo Technopark | Grouting pipe equipment and method of grouting using the same for an underground water well |
| CN102900357A (en) * | 2012-09-27 | 2013-01-30 | 三一重工股份有限公司 | Rotary drilling rig and brine collecting method |
| CN203905869U (en) * | 2014-05-31 | 2014-10-29 | 中交一公局第三工程有限公司 | High-pressure water-flushing air-lift reverse circulation hole cleaning device |
| CN105041255A (en) * | 2015-08-11 | 2015-11-11 | 中煤科工集团西安研究院有限公司 | Hole bottom combined drilling tool used for fishing broken falling objects in drilled hole and fishing method of hole bottom combined drilling tool |
| CN205778646U (en) * | 2016-05-30 | 2016-12-07 | 天津探矿机械有限公司 | Air lift counter circulation drill rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681995A (en) * | 2020-12-30 | 2021-04-20 | 中煤科工集团西安研究院有限公司 | Adjustable mixer, no-lifting drilling gas-lift reverse circulation drilling tool and drilling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160817 |