CN201635114U - Negative-pressure sand bailing pipe - Google Patents
Negative-pressure sand bailing pipe Download PDFInfo
- Publication number
- CN201635114U CN201635114U CN2010201030406U CN201020103040U CN201635114U CN 201635114 U CN201635114 U CN 201635114U CN 2010201030406 U CN2010201030406 U CN 2010201030406U CN 201020103040 U CN201020103040 U CN 201020103040U CN 201635114 U CN201635114 U CN 201635114U
- Authority
- CN
- China
- Prior art keywords
- sand
- sand tube
- piston rod
- bailing pipe
- tube 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
Links
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a negative-pressure sand bailing pipe, which comprises a sand bailing pipe body. A hollow piston rod extends from an upper opening of the sand bailing pipe body to an inner cavity of the same, a piston with the inner diameter matching with that of the sand bailing pipe body is sleeved on the lower portion of the piston rod, an overflow opening disposed at the bottom of the piston rod is communicated with an inner cavity of the piston rod via a one-way valve, a water drainage opening is arranged on the upper portion of the sand bailing pipe body, and a hinge-type sand stop plate is disposed in an inner cavity of a joint movably connected to the bottom of the sand bailing pipe body. The negative-pressure sand bailing pipe has the advantages of changing conventional treatment method that sand bailing depends on water flushing and sediment and then sand accretion enters the sand bailing pipe, utilizing negative pressure to suck sand accretion into the sand bailing pipe, quickening speed of the sand accretion entering the sand bailing pipe, changing sand bailing frequency into 0.25 hour at a time from 4 hours at a time in the prior art, and increasing production efficiency by sixteen times.
Description
Technical field
The utility model relates to and drags for sand tube, especially relates to a kind of sand tube that drags for of handling the well silt.
Background technology
Well is through after using for many years, and the silt of piling up gradually in the well can cause water yield to reduce, and does not satisfy demand.The method of the well of geology industry processing now silt is to use drilling tool to carry and drags for sand tube, and water carries out punching by drilling rod, and the sand that rolls up is deposited in and drags in the sand tube, like this, dragging for once huskyly just needs about four hours, if when running into insufficient water sources, rig can not continuous operation, consuming time and effort.
The utility model content
The purpose of this utility model is to provide a kind of negative pressure simple in structure, high efficiency to drag for sand tube.
For achieving the above object, the utility model can be taked following technical proposals:
Negative pressure described in the utility model is dragged for sand tube, comprise and drag for the sand tube body, from the described sand tube body piston rod that is provided with hollow-core construction that in its inner chamber, extends suitable for reading that drags for, be set with described at described underpart of the piston rod and drag for the piston that sand tube body internal diameter adapts, the overfall gap of offering in described piston rod bottom is connected with described piston rod cavity by one way valve; Offer outfall on the described sand tube body top of dragging for, be movably connected in the described joint inner chamber that drags for sand tube body bottom and be provided with the hinge type sandboard.
Described piston rod upper end is provided with suspension ring.
The described place suitable for reading that drags for the sand tube body is connected with end cap, and described piston rod extends out in end cap central bore.
Describedly drag for the top of sand tube body end cap and the lower, outer perimeter face of bottom fitting is a chamfering structure.。
Advantage of the present utility model has been to change tradition and has dragged for the husky processing mode that silt is entered drag for sand tube by water flushing precipitation, with negative pressure sand tube is dragged in the silt suction, accelerate silt and entered the speed of dragging for sand tube, become 0.25 hour and drag for once husky by dragging for once sand in original 4 hours, enhance productivity 16 times.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in the figure, negative pressure described in the utility model is dragged for sand tube, comprise and drag for sand tube body 1, from described sand tube body 1 piston rod 2 that is provided with hollow-core construction that in its inner chamber, extends suitable for reading that drags for, be set with in described piston rod 2 bottoms with described and drag for the piston 3 that sand tube body 1 internal diameter adapts, the overfall gap of offering in described piston rod 2 bottoms is by one way valve 4 and described piston rod 2 intracavity inter-connections; Offer outfall 5 on described sand tube body 1 top of dragging for, be movably connected in described joint 6 inner chambers that drag for sand tube body 1 bottom and be provided with hinge type sandboard 7.Described piston rod 2 upper ends are provided with suspension ring 8, conveniently are connected with the hoist engine wire rope.The described place suitable for reading that drags for sand tube body 1 is connected with end cap 9, and described piston rod 2 extends out in end cap 9 centre bores, plays guide effect when piston rod is outwards extracted out or inwardly advanced.Describedly drag for the top of sand tube body end cap 9 and the lower, outer perimeter face of bottom fitting 6 is a chamfering structure, the resistance when reducing to drag for the sand tube body and going into well or wet well.
Operating principle of the present utility model is:
Hoist engine work is fixed on steel wire tow line on the suspension ring and will drags for sand tube body 1 and put into the down-hole, and steel wire tow line pulling piston rod 2 upwards, make the rodless cavity chamber of dragging for sand tube body 1 bottom form vacuum, hinge type sandboard 7 is opened, and silt enters the rodless cavity that drags for sand tube body 1 from the below indoor, moves to upper end cover 9 places on piston rod 2 continues, silt is full of the inner chamber that drags for sand tube body 1, hinge type sandboard 7 closures will be dragged for sand tube body 1 and be pulled out outside the well, unload bottom fitting 6, remove silt, drag for sand next time.
Claims (4)
1. a negative pressure is dragged for sand tube, comprise and drag for sand tube body (1), it is characterized in that: from described sand tube body (1) piston rod (2) that is provided with hollow-core construction that in its inner chamber, extends suitable for reading that drags for, be set with in described piston rod (2) bottom with described and drag for the piston (3) that sand tube body (1) internal diameter adapts, the overfall gap of offering in described piston rod (2) bottom is by one way valve (4) and described piston rod (2) intracavity inter-connection; Offer outfall (5) on described sand tube body (1) top of dragging for, be movably connected in described joint (6) inner chamber that drags for sand tube body (1) bottom and be provided with hinge type sandboard (7).
2. negative pressure according to claim 1 is dragged for sand tube, it is characterized in that: described piston rod (2) upper end is provided with suspension ring (8).
3. negative pressure according to claim 1 and 2 is dragged for sand tube, it is characterized in that: the described place suitable for reading that drags for sand tube body (1) is connected with end cap (9), and described piston rod (2) extends out in end cap (9) centre bore.
4. negative pressure according to claim 3 is dragged for sand tube, it is characterized in that: describedly drag for the top of sand tube body end cap (9) and the lower, outer perimeter face of bottom fitting (6) is a chamfering structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201030406U CN201635114U (en) | 2010-01-28 | 2010-01-28 | Negative-pressure sand bailing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201030406U CN201635114U (en) | 2010-01-28 | 2010-01-28 | Negative-pressure sand bailing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635114U true CN201635114U (en) | 2010-11-17 |
Family
ID=43079600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201030406U Expired - Fee Related CN201635114U (en) | 2010-01-28 | 2010-01-28 | Negative-pressure sand bailing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635114U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544653A (en) * | 2016-03-01 | 2016-05-04 | 绥棱县淼源井业科技有限公司 | Downhole silt removal device |
| CN114011140A (en) * | 2021-11-24 | 2022-02-08 | 河北盛世天成信息技术有限公司 | Efficient solid-liquid separation portable sand bailing process |
-
2010
- 2010-01-28 CN CN2010201030406U patent/CN201635114U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544653A (en) * | 2016-03-01 | 2016-05-04 | 绥棱县淼源井业科技有限公司 | Downhole silt removal device |
| CN114011140A (en) * | 2021-11-24 | 2022-02-08 | 河北盛世天成信息技术有限公司 | Efficient solid-liquid separation portable sand bailing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20140128 |