CN208981989U - Gas-lift reverses circulation device - Google Patents
Gas-lift reverses circulation device Download PDFInfo
- Publication number
- CN208981989U CN208981989U CN201821722754.8U CN201821722754U CN208981989U CN 208981989 U CN208981989 U CN 208981989U CN 201821722754 U CN201821722754 U CN 201821722754U CN 208981989 U CN208981989 U CN 208981989U
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- China
- Prior art keywords
- air hose
- mud
- terminal pad
- kelly bar
- valve
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Abstract
The utility model belongs to drilling rig technical field, discloses a kind of gas-lift reverses circulation device.It is mainly characterized in that kelly bar and drilling rod including connecting by turntable, kelly bar is provided with tap, the tap is connected by the first mud tube, the second mud tube with the second valve and slush pump with the first valve with mud-settling pit, first mud tube and the second mud tube are connected, mud-settling pit is provided with the return pipe reached below turntable, air hose is provided in kelly bar and drilling rod, air hose bottom end is provided with mixing wastewater with air room, and air hose top is provided with third valve and air compressed pneumatic pump.Gas-lift reverses circulation device provided by the utility model, air hose is provided in kelly bar and drilling rod, change the reverse circulating flow direction of double-wall drill pipe, " stifled " " leakage " phenomenon in reverse circulation drilling is being carried out to reduce double-wall drill pipe, and be conducive to search " stifled " " leakage " point, its structure is simple, easy to operate.
Description
Technical field
The utility model belongs to drilling rig technical field more particularly to a kind of gas-lift reverses circulation device.
Background technique
In the drilling construction of big diameter borehole filling pile, the double-wall drill pipe that used originally in carrying out reverse circulation drilling,
It is easy to appear " stifled " " leakage " phenomenon, influences to construct.
Utility model content
It is simple that the technical problems to be solved in the utility model is just to provide a kind of structure, is less prone in reverse circulation drilling
The gas-lift reverses circulation device of " stifled " " leakage " phenomenon.
In order to solve the above technical problems, the technical solution adopted by the utility model is: including the drill with ferrule connected by turntable
Bar and drilling rod, kelly bar are provided with tap, and the tap is by having the first mud tube of the first valve, having second
Second mud tube of valve and slush pump is connected with mud-settling pit, and the first mud tube and the second mud tube are connected, mud
Sedimentation basin is provided with the return pipe reached below turntable, is provided with air hose in kelly bar and drilling rod, air hose bottom end is provided with air water
Mixing chamber, air hose top are provided with third valve and air compressed pneumatic pump.
Its additional technical feature are as follows:
The air hose is made of top air hose and lower part air hose, and top air hose is connected with lower part air hose by connector,
Top air hose is provided with terminal pad, and lower part air hose is provided with lower terminal pad, and upper terminal pad, lower terminal pad are arranged in connector
Interior, lower terminal pad is arranged with lower bearing, and upper bearing (metal) is provided between upper terminal pad and lower terminal pad, is provided with above upper terminal pad
Sealing ring is provided with gland above sealing ring；
The lower part air hose is more, and adjacent lower air hose is connected through a screw thread or ring flange connection, topmost one
The length of lower part air hose is greater than the length of kelly bar.
When gas-lift reverses circulation device provided by the utility model works, direct circulation drilling operation is first carried out, is closed
First valve, third valve open the second valve, start slush pump, and the mud in mud-settling pit is passed through second by slush pump
Mud tube, the first mud tube, tap, kelly bar, drilling rod enter drilling.When drilling reaches certain depth, close slush pump and
Second valve opens the first valve, third valve, starts air compressed pneumatic pump, compressed air enters air hose, in air hose bottom end gas
Water mixing chamber enters drilling rod, presses to the mud in drilling rod, and mud is made to pass through kelly bar, tap, the first mud tube by drilling rod
Mud-settling pit is reached, after the mud sediment in mud-settling pit, clear liquid flows back to drilling by return pipe.The utility model is provided
Gas-lift reverses circulation device, be provided with air hose in kelly bar and drilling rod, change the reverse circulating flowing side of double-wall drill pipe
To, so that reducing double-wall drill pipe is carrying out " stifled " " leakage " phenomenon in reverse circulation drilling, and be conducive to search " stifled " " leakage " point,
Its structure is simple, easy to operate.And air hose is made of top air hose and lower part air hose, top air hose and lower part air hose pass through connection
Device connection, top air hose are provided with terminal pad, and lower part air hose is provided with lower terminal pad, and upper terminal pad, the setting of lower terminal pad exist
In connector, lower terminal pad is arranged with lower bearing, is provided with upper bearing (metal) between upper terminal pad and lower terminal pad, above upper terminal pad
It is provided with sealing ring, is provided with gland above sealing ring.So that top air hose and lower part air hose while being completely embedded, meet
Rotating requires.Lower part air hose is more, and adjacent lower air hose is connected through a screw thread or ring flange connection, topmost a lower part wind
The length of pipe is greater than the length of kelly bar.Be conducive to the installing and dismounting of air hose.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model gas-lift reverses circulation device；
Fig. 2 is the structural schematic diagram of air hose.
Specific embodiment
The specific structure of the utility model gas-lift reverses circulation device is described in further details with reference to the accompanying drawing.
As shown in Figure 1, the utility model gas-lift reverses circulation device includes kelly bar 1 and drilling rod 2, kelly bar 1 and bore
Bar 2 is connected by turntable 3, and kelly bar 1 is provided with tap 4, tap 4 by the first mud tube 6 with the first valve 5,
The second mud tube 9 with the second valve 7 and slush pump 8 is connected with mud-settling pit 10, the first mud tube 6 and the second mud
Pipe 9 is connected, and mud-settling pit 10 is provided with the return pipe 11 for reaching 3 lower section of turntable, is provided with wind in kelly bar 1 and drilling rod 2
Pipe 12,12 bottom end of air hose are provided with mixing wastewater with air room 13, and 12 top of air hose is provided with third valve 14 and air compressed pneumatic pump 15.
As shown in Fig. 2, air hose 12 is made of top air hose 1201 and lower part air hose 1202, top air hose 1201 and lower part wind
Pipe 1202 is connected by connector 16, and top air hose 1201 is provided with terminal pad 17, and lower part air hose 1202 is provided with lower connection
Disk 18, upper terminal pad 17, lower terminal pad 18 are arranged in connector 16, and lower terminal pad 18 is arranged with lower bearing 19, upper connection
Upper bearing (metal) 20 is provided between disk 17 and lower terminal pad 18, upper terminal pad 17 is provided with sealing ring 21 above, and sealing ring 21 is set above
It is equipped with gland 22.
When gas-lift reverses circulation device provided by the utility model works, direct circulation drilling operation is first carried out, is closed
First valve 5, third valve 14 open the second valve 7, start slush pump 8, and slush pump 8 is by the mud in mud-settling pit 10
Enter drilling 23 by the second mud tube 9, the first mud tube 6, tap 4, kelly bar 1, drilling rod 2.When drilling 23 reaches certain
Depth closes slush pump 8 and the second valve 7, opens the first valve 5, third valve 14, starts air compressed pneumatic pump 15, compression
Air enters air hose 12,12 bottom end mixing wastewater with air room 13 of air hose enter drilling rod 2, in drilling rod 2 mud press, make mud by
Drilling rod 2 reaches mud-settling pit 10 by kelly bar 1, tap 4, the first mud tube 6, the mud sediment in mud-settling pit 10
Afterwards, clear liquid flows back to drilling 23 by return pipe 11.Gas-lift reverses circulation device provided by the utility model, in 1 He of kelly bar
It is provided with air hose 12 in drilling rod 2, changes the reverse circulating flow direction of double-wall drill pipe, is being carried out instead to reduce double-wall drill pipe
" stifled " " leakage " phenomenon in circulation drilling, and be conducive to search " stifled " " leakage " point, structure is simple, easy to operate.And air hose 12
It being made of top air hose 1201 and lower part air hose 1202, top air hose 1201 and lower part air hose 1202 are connected by connector 16,
Top air hose 1201 is provided with terminal pad 17, and lower part air hose 1202 is provided with lower terminal pad 18, upper terminal pad 17, lower terminal pad
18 are arranged in connector 16, and lower terminal pad 18 is arranged with lower bearing 19, is provided between upper terminal pad 17 and lower terminal pad 18
Upper bearing (metal) 20, upper terminal pad 17 are provided with sealing ring 21 above, and sealing ring 21 is provided with gland 22 above.So that top air hose
1201 and lower part air hose 1202 while being completely embedded, meet rotating requires.Lower part air hose 1202 is more, adjacent lower wind
Pipe 1202 is connected through a screw thread or ring flange connection, and topmost the length of a lower part air hose 1202 is greater than the length of kelly bar 1.
Be conducive to the installing and dismounting of air hose 12.
Gas-lift reverses circulation device provided by the utility model is not limited only to above-described embodiment, but either which kind of shape
Formula, all any modifications, equivalent replacements, and improvements made on the basis of the utility model etc., should be included in the utility model
Within protection scope.
Claims (3)
1. gas-lift reverses circulation device, including the kelly bar and drilling rod connected by turntable, kelly bar is provided with tap,
Be characterized in that: the tap by with the first valve the first mud tube, second with the second valve and slush pump
Mud tube is connected with mud-settling pit, and the first mud tube and the second mud tube are connected, and mud-settling pit is provided with arrival and turns
Air hose is provided in return pipe below disk, kelly bar and drilling rod, air hose bottom end is provided with mixing wastewater with air room, the setting of air hose top
There are third valve and air compressed pneumatic pump.
2. gas-lift reverses circulation device according to claim 1, it is characterised in that: the air hose by top air hose and
Lower part air hose is constituted, and top air hose is connected with lower part air hose by connector, and top air hose is provided with terminal pad, lower part air hose
It is provided with lower terminal pad, upper terminal pad, lower terminal pad are arranged in connector, and lower terminal pad is arranged with lower bearing, upper connection
It is provided with upper bearing (metal) between disk and lower terminal pad, sealing ring is provided with above upper terminal pad, is provided with gland above sealing ring.
3. gas-lift reverses circulation device according to claim 2, it is characterised in that: the lower part air hose is more,
Adjacent lower air hose is connected through a screw thread or ring flange connection, and topmost the length of a lower part air hose is greater than the length of kelly bar
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821722754.8U CN208981989U (en) | 2018-10-24 | 2018-10-24 | Gas-lift reverses circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821722754.8U CN208981989U (en) | 2018-10-24 | 2018-10-24 | Gas-lift reverses circulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208981989U true CN208981989U (en) | 2019-06-14 |
Family
ID=66788676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821722754.8U Active CN208981989U (en) | 2018-10-24 | 2018-10-24 | Gas-lift reverses circulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208981989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251050A (en) * | 2021-05-21 | 2022-03-29 | 徐州景安重工机械制造有限公司 | Gas lift reverse circulation drilling device |
-
2018
- 2018-10-24 CN CN201821722754.8U patent/CN208981989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251050A (en) * | 2021-05-21 | 2022-03-29 | 徐州景安重工机械制造有限公司 | Gas lift reverse circulation drilling device |
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