CN208981954U - Side air hose gas-lift reverses circulation device - Google Patents
Side air hose gas-lift reverses circulation device Download PDFInfo
- Publication number
- CN208981954U CN208981954U CN201821724286.8U CN201821724286U CN208981954U CN 208981954 U CN208981954 U CN 208981954U CN 201821724286 U CN201821724286 U CN 201821724286U CN 208981954 U CN208981954 U CN 208981954U
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- CN
- China
- Prior art keywords
- air hose
- drilling
- drilling rod
- suction tube
- mud
- 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
The utility model belongs to drilling rig technical field, discloses a kind of side air hose gas-lift reverses circulation device.It is mainly characterized in that including drilling rod, drilling rod bottom is provided with the drill bit of submersible motor drive, it is connected at the top of drilling rod with mud sump, mud sump is provided with mud reflux groove, and air hose is provided on the outside of the drilling rod, and the top of air hose is connected with air compressed pneumatic pump, the bottom of air hose is protruded into drilling rod, drilling-rod external wall below air hose is provided with suction tube, and the top of suction tube is connected with drilling rod, and there are gaps with drill bit for the bottom of suction tube.Side air hose gas-lift reverses circulation device provided by the utility model, structure is simple, and easy to use, drilling rod is not easy to plug, and air hose is not easy gas leakage.There are Lost circulation problems to be easy to find, handle.Reverse circulation drilling, bottom hole is clean, drilling efficiency is high, and especially drilling depth effect is obvious in the drilling for solving large-diameter pile foundation drilling.
Description
Technical field
The utility model belongs to drilling rig technical field more particularly to a kind of side air hose gas-lift reverses circulation dress
It sets.
Background technique
Submarine engineering drilling machine is submersible type motoring drilling machine, is the ideal boring machine of cast-in-situ bored pile, is suitable for becoming silted up
A variety of earth-borings such as mud, clay, sandy gravel stratum, weathered shale.
The working principle of drilling machine: power is reached output shaft by retarder by submersible motor by diving power device, is driven
Bit cutting ground, power device slips into bottom hole and directly drives drill bit revolution cutting when work, and drilling rod does not turn only to play connection transmitting
The effect of antitorque conveying mud bores disk and does not turn to be solely subjected to the reaction torque that drill bit rotation generates.
It in reverse circulation drilling, common are: carrying out gas lift reverse circulation and Pump Suction Reverse Circulation using double-wall drill pipe.All
There is advantage and disadvantage, such as: double-wall drill pipe is easily " stifled " " leakage "；Pump Suction Reverse Circulation, since suction only has 5-6 meters, drilling compared with
The outer mud balance of the big drilling rod of mud balance is small in deep, drilling rod and pressure loss in piping is excessive etc. causes extraction difficult.
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 stifled
Leak the side air hose gas-lift reverses circulation device of phenomenon.
In order to solve the above technical problems, the technical solution adopted by the utility model is: including drilling rod, drilling rod bottom is provided with
The drill bit that submersible motor drives is connected at the top of drilling rod with mud sump, and mud sump is provided with mud reflux groove, the drilling rod outside
Side is provided with air hose, and the top of air hose is connected with air compressed pneumatic pump, and the bottom of air hose is protruded into drilling rod, the brill below air hose
Bar outer wall is provided with suction tube, and the top of suction tube is connected with drilling rod, and there are gaps with drill bit for the bottom of suction tube.
Its additional technical feature are as follows: the suction tube is one or more；
The diameter of the drilling rod is 168-219mm, and the diameter of air hose is 60-73mm, and the diameter of suction tube is 73-89mm.
When side air hose gas-lift reverses circulation device provided by the utility model works, submersible motor passes through retarder
Bit cutting ground is driven, drilling rod does not turn only to play the antitorque conveying mud of connection transmitting.Air compressed pneumatic pump passes through air hose
Compressed air to be sent into drilling rod, the mud outside drilling rod enters suction tube by the gap location between the bottom and drill bit of suction tube, then
Entered in drilling rod by suction tube, compressed air drives and backflows on the mud in drilling rod into mud sump.The premium mud of mud sump is logical
Mud reflux groove is crossed to flow freely into drilling well.Since drill bit rotation drilling rod does not rotate, ground is led on the cable of motor and is suitably controlled
System is not in cable winding problem.Side air hose gas-lift reverses circulation device provided by the utility model, structure
Simply, easy to use, drilling rod is not easy to plug, and air hose is not easy gas leakage.There are Lost circulation problems to be easy to find, handle.Reverse circulation drilling,
Bottom hole is clean, drilling efficiency is high, and especially drilling depth effect is obvious in the drilling for solving large-diameter pile foundation drilling.As needed,
Suction tube is one or more.The diameter of drilling rod is 168-219mm, and the diameter of air hose is 60-73mm, is not influence air output
Principle.The diameter of suction tube is 73-89mm, and maximum also obtain is less than drilling rod internal diameter, because excessive, easily blocks drilling rod, too small, is influenced
Suction effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model side air hose gas-lift reverses circulation device.
Specific embodiment
The specific structure of the utility model side air hose gas-lift reverses circulation device is done further with reference to the accompanying drawing
It is described in detail.
As shown in Figure 1, the utility model side air hose gas-lift reverses circulation device includes drilling rod 1, the setting of 1 bottom of drilling rod
The drill bit 3 for having submersible motor 2 to drive, 1, drilling rod top are connected with mud sump 4, and mud sump 4 is provided with mud reflux groove 5, drilling rod
1 outside is provided with air hose 6, and the top of air hose 6 is connected with air compressed pneumatic pump 7, and the bottom of air hose 6 is protruded into drilling rod 1, wind
1 outer wall of drilling rod below pipe 6 is provided with suction tube 8, and the top of suction tube 8 is connected with drilling rod 1, the bottom of suction tube 8 and brill
First 3 there are gaps.
When side air hose gas-lift reverses circulation device provided by the utility model works, submersible motor 2 passes through deceleration
Device drives drill bit 3 to cut ground, and drilling rod 1 does not turn only to play the antitorque conveying mud of connection transmitting.Air compressed pneumatic pump 7 passes through
Air hose 6 is sent into compressed air in drilling rod 1, and the mud outside drilling rod 1 is entered by the gap location between the bottom and drill bit 3 of suction tube 8
Suction tube 8, then entered in drilling rod 1 by suction tube 8, compressed air drives and backflows on the mud in drilling rod 1 into mud sump 4.Mud
The premium mud in hole 4 is flowed freely into drilling well 9 by mud reflux groove.It is not rotated since drill bit 3 rotates drilling rod 1, submersible motor 2
Cable on lead to ground suitable control, be not in cable winding problem.As needed, suction tube 8 is one or more
Root.The diameter of drilling rod 1 is 168-219mm, and the diameter of air hose 6 is 60-73mm, not influence air output as principle.Suction tube 8
Diameter is 73-89mm, and maximum also obtain is less than 1 internal diameter of drilling rod, because excessive, easily blocks drilling rod 1, too small, influences suction effect.
Side air hose gas-lift reverses circulation device provided by the utility model is not limited only to above-described embodiment, but regardless of
It is which kind of form, all any modifications, equivalent replacements, and improvements made on the basis of the utility model etc. should be included in this reality
Within novel protection scope.
Claims (3)
1. side air hose gas-lift reverses circulation device, including drilling rod, drilling rod bottom is provided with the drill bit of submersible motor drive, bores
It is connected at the top of bar with mud sump, mud sump is provided with mud reflux groove, it is characterised in that: is provided with wind on the outside of the drilling rod
Pipe, the top of air hose are connected with air compressed pneumatic pump, and the bottom of air hose is protruded into drilling rod, the drilling-rod external wall setting below air hose
There is suction tube, the top of suction tube is connected with drilling rod, and there are gaps with drill bit for the bottom of suction tube.
2. side air hose gas-lift reverses circulation device according to claim 1, it is characterised in that: the suction tube is
One or more.
3. side air hose gas-lift reverses circulation device according to claim 1 or 2, it is characterised in that: the drilling rod
Diameter is 168-219mm, and the diameter of air hose is 60-73mm, and the diameter of suction tube is 73-89mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821724286.8U CN208981954U (en) | 2018-10-24 | 2018-10-24 | Side air hose gas-lift reverses circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821724286.8U CN208981954U (en) | 2018-10-24 | 2018-10-24 | Side air hose gas-lift reverses circulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208981954U true CN208981954U (en) | 2019-06-14 |
Family
ID=66788716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821724286.8U Expired - Fee Related CN208981954U (en) | 2018-10-24 | 2018-10-24 | Side air hose gas-lift reverses circulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208981954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627753A (en) * | 2020-12-23 | 2021-04-09 | 中煤水文局集团有限公司 | Method for maintaining mud circulation in lost-return stratum |
| CN113338796A (en) * | 2021-05-30 | 2021-09-03 | 江苏金亚益重工科技有限公司 | Ultra-large torque pump suction and gas lift reverse circulation drilling machine |
-
2018
- 2018-10-24 CN CN201821724286.8U patent/CN208981954U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627753A (en) * | 2020-12-23 | 2021-04-09 | 中煤水文局集团有限公司 | Method for maintaining mud circulation in lost-return stratum |
| CN112627753B (en) * | 2020-12-23 | 2022-05-31 | 中煤水文局集团有限公司 | Method for maintaining mud circulation in lost-return stratum |
| CN113338796A (en) * | 2021-05-30 | 2021-09-03 | 江苏金亚益重工科技有限公司 | Ultra-large torque pump suction and gas lift reverse circulation drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190614 Termination date: 20201024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |