CN105544653A - Downhole silt removal device - Google Patents
Downhole silt removal device Download PDFInfo
- Publication number
- CN105544653A CN105544653A CN201610115936.8A CN201610115936A CN105544653A CN 105544653 A CN105544653 A CN 105544653A CN 201610115936 A CN201610115936 A CN 201610115936A CN 105544653 A CN105544653 A CN 105544653A
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- CN
- China
- Prior art keywords
- silt
- urceolus
- cleaning plant
- inner core
- baffle plate
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
- E03B3/08—Obtaining and confining water by means of wells
- E03B3/15—Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers
Abstract
The invention provides a downhole silt removal device and relates to the technical field of water well maintenance in order to solve the technical problem that due to downhole silt accumulation, a water well is scrapped. The downhole silt removal device comprises an outer cylinder, an inner cylinder is arranged in the outer cylinder, a baffle is disposed at the bottom end of the outer cylinder and connected with the outer cylinder, a silt inlet is formed in the baffle, the diameter of the silt inlet is smaller than or equal to that of the inner cylinder, the silt inlet is communicated with a feed inlet in the bottom of the inner cylinder, a plurality of silt outlets are formed in the side face of the inner cylinder, a rotary shaft is arranged in the inner cylinder, a spiral blade is arranged on the side face of the rotary shaft, one end of the rotary shaft is connected with a driver, and the driver drives the rotary shaft to rotate. The downhole silt removal device is used for removing downhole silt, and is high in efficiency, good in effect, firm and durable.
Description
Technical field
The present invention relates to well maintenance technology field, especially relate to a kind of down-hole silt cleaning plant.
Background technology
At present, in Water Well, Sediment Siltation is one of main reason causing well to scrap, the well caused due to Sediment Siltation in well scrap that quantity accounts for that sum scrapped by well about 80%, and due to well diameter less, and well is comparatively dark, therefore in well, silt is drawn clearly is the problem that well maintenance insider comparatively has a headache always.
Summary of the invention
The object of the present invention is to provide a kind of down-hole silt cleaning plant, to solve the technical problem that the down-hole Sediment Siltation that exists in prior art causes well to be scrapped.
For achieving the above object, technical scheme of the present invention is achieved in that
Down-hole provided by the invention silt cleaning plant, comprise: urceolus, inner core is provided with in described urceolus, the bottom of described urceolus is provided with baffle plate, described baffle plate is connected with described urceolus, described baffle plate is provided with sand inlet, the diameter of described sand inlet is less than or equal to the diameter of described inner core, and be connected with the charging aperture of the bottom of described inner core, the side of described inner core is provided with multiple sand outlet, axis of rotation is provided with in described inner core, the side of described axis of rotation is provided with screw blade, one end of described axis of rotation is connected with driver, axis of rotation described in described driver drives rotates.
Preferably, region corresponding with described sand outlet outside the barrel of described inner core is provided with training for sediment pipe, and described training for sediment pipe is tilted to lower setting, and the bottom of described training for sediment pipe is connected with self-styled flexible pipe.
Preferably, also comprise the stabilizing base of at least two tapers, down, the other end of described stabilizing base is connected with the bottom of described urceolus at the tip of described stabilizing base.
Preferably, also comprise two lift rings, the two ends of each described lift ring are all connected with the top of described urceolus, and two described lift rings are arranged in a crossed manner.
Preferably, described lift ring is connected with lifting appliance by rope, and the described lift Ring current distribution region being positioned at the top is provided with the connecting ring passed for confession rope.
Preferably, the edge of described baffle plate is provided with multiple clamp, each described clamp is all positioned at same plane with described baffle plate, described clamp is provided with the pin-and-hole running through described clamp thickness, on the barrel of described urceolus, corresponding multiple described clamp offers multiple bayonet socket, described clamp stretches out described bayonet socket, and described baffle plate is connected with described urceolus by the latch through described pin-and-hole.
Preferably, described bayonet socket comprises the longitudinal mouth being arranged at described barrel bottom and the horizontal installing port being arranged at described longitudinal mouth top, and described longitudinal mouth is communicated with described horizontal installing port.
Preferably, described stabilizing base is arranged on the bottom surface of described baffle plate, and described stabilizing base is connected with the bottom of described urceolus by described baffle plate.
Preferably, the top of described axis of rotation is set with bearing, and described bearing is connected with described urceolus by bearing support.
Preferably, described bearing comprises upper bearing (metal) and lower bearing, described bearing support comprises top chock and step, described upper bearing (metal) and described lower bearing are all set in the top of described axis of rotation and interval is arranged, described upper bearing (metal) is installed in described top chock, and described lower bearing is installed in described step.
Relative to prior art, down-hole of the present invention silt cleaning plant has following advantage:
When using down-hole silt cleaning plant provided by the invention, first, down-hole silt cleaning plant is vertically transferred to shaft bottom, then, open driver, driver drives axis of rotation rotates, axis of rotation drives screw blade to rotate, make to produce negative pressure in inner core, therefore outside silt enters into inner core from the sand inlet of baffle plate and the charging aperture of inner core, and move upward with along axis of rotation and screw blade, in the process moved upward in silt inner core, silt can enter the space between urceolus and inner core via the multiple sand outlets on inner core sidewall, the silt entered between urceolus and inner core stops the rotation and moves and fall on baffle plate, baffle plate can prevent silt from again falling in Hui Jing.After silt is filled in space in the middle of inner core and urceolus, finally, down-hole silt cleaning plant is promoted to ground, thus the silt of down-hole can be taken out of.Repeatedly repeat above-mentioned scale removal process, the silt of down-hole can be cleaned out, reduce the quantity that the well that causes because of Sediment Siltation is scrapped.
In addition, inner core due to above-mentioned down-hole silt cleaning plant is provided with training for sediment pipe, and one end of training for sediment pipe is connected with self-styled flexible pipe, therefore, after opening driver, silt, from inner core, enters into the region between inner core and urceolus via training for sediment pipe and self-styled flexible pipe, gets more and more when entering the silt in inner core and urceolus, little by little, silt between inner core and urceolus will cover self-styled flexible pipe, thus be pushed down by the opening of self-styled flexible pipe, thus close this self-styled flexible pipe.Design like this, in the process promoted away from well by down-hole silt cleaning plant, the silt between inner core and urceolus can not be got back in inner core again, also would not drop out from the charging aperture of inner core again.Thus add the quantity of sand and mud once cleaned out, and then improve the efficiency of cleaning silt.
In sum, down-hole provided by the invention silt cleaning plant lightweight, silt cleaning efficiency is high, can repeatedly use and application life longer.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in detailed description of the invention or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the down-hole silt cleaning plant that Fig. 1 provides for the embodiment of the present invention;
The structural representation of baffle plate in the down-hole silt cleaning plant that Fig. 2 provides for the embodiment of the present invention;
The structural representation of axis of rotation in the down-hole silt cleaning plant that Fig. 3 provides for the embodiment of the present invention.
Reference numeral:
1-urceolus; 2-inner core;
3-axis of rotation; 4-baffle plate;
5-sand inlet; 6-charging aperture;
7-screw blade; 8-training for sediment pipe;
The self-styled flexible pipe of 9-; 10-stabilizing base;
11-lifts ring; 12-connecting ring;
13-clamp; 14-pin-and-hole;
15-latch; 16-bearing bracket stand;
17-connecting rod.
Detailed description of the invention
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
The structural representation of the down-hole silt cleaning plant that Fig. 1 provides for the embodiment of the present invention; The structural representation of baffle plate 4 in the down-hole silt cleaning plant that Fig. 2 provides for the embodiment of the present invention; The structural representation of axis of rotation 3 in the down-hole silt cleaning plant that Fig. 3 provides for the embodiment of the present invention; As Figure 1-3, the down-hole silt cleaning plant that the embodiment of the present invention provides, comprise: urceolus 1, inner core 2 is provided with in urceolus 1, the bottom of urceolus 1 is provided with baffle plate 4, baffle plate 4 is connected with urceolus 1, baffle plate 4 is provided with sand inlet 5, the diameter of sand inlet 5 is less than or equal to the diameter of inner core 2, and is connected with the charging aperture 6 of the bottom of inner core 2, and the side of inner core 2 is provided with multiple sand outlet, axis of rotation 3 is provided with in inner core 2, the side of axis of rotation 3 is provided with screw blade 7, and one end of axis of rotation 3 is connected with driver, and driver drives axis of rotation 3 rotates.
When the down-hole silt cleaning plant using the embodiment of the present invention to provide, first, down-hole silt cleaning plant is vertically transferred to shaft bottom, then, open driver, driver drives axis of rotation 3 rotates, axis of rotation 3 drives screw blade 7 to rotate, make to produce negative pressure in inner core 2, therefore outside silt enters into inner core 2 from the sand inlet 5 of baffle plate 4 and the charging aperture 6 of inner core 2, and move upward with along axis of rotation 3 and screw blade 7, in the process moved upward in silt inner core 2, silt can enter the space between urceolus 1 and inner core 2 via the multiple sand outlets on inner core 2 sidewall, the silt entered between urceolus 1 and inner core 2 stops the rotation and moves and fall on baffle plate 4, baffle plate 4 can prevent silt from again falling in Hui Jing.After silt is filled in space in the middle of inner core 2 and urceolus 1, finally, down-hole silt cleaning plant is promoted to ground, thus the silt of down-hole can be taken out of.Repeatedly repeat above-mentioned scale removal process, the silt of down-hole can be cleaned out, reduce the quantity that the well that causes because of Sediment Siltation is scrapped.Due to drive screw blade 7 to rotate at axis of rotation 3 process in, silt mixes well water and enters into inner core 2 together, therefore, use above-mentioned down-hole silt cleaning plant, littlely all can together enter into inner core 2 with well water to sposh fine sand face, greatly to the brick of diameter about 3.5 centimeters or cobble etc., therefore, the scope of application of above-mentioned down-hole silt cleaning plant is wider.
It should be noted that, in order to improve the efficiency of cleaning silt, down-hole silt cleaning plant is connected with lifting appliance, by lifting appliance, down-hole silt cleaning plant is transferred to down-hole, and the down-hole silt cleaning plant having filled silt is enhanced from well, lifting means can be hoist engine, Chain block, electric block, trepan, crane or agricultural vehicle etc.The driver driving axis of rotation 3 can be water logging motor, and water logging motor has the advantages such as waterproof, burn-out-proof, square silt.
In order to improve the efficiency of above-mentioned down-hole silt cleaning plant cleaning silt further, while driver drives axis of rotation 3 and screw blade 7 are walked around, lifting means simultaneously also by down-hole silt cleaning plant slowly on carry a segment distance, then down-hole silt cleaning plant is slowly transferred a segment distance, while driver drives axis of rotation 3 and screw blade 7 rotate, lifting means constantly circulate above-mentioned by silt cleaning plant slowly on mention the action of slowly transferring, in the process of motion, impact force is produced to the silt in well to make down-hole silt cleaning plant, accelerate the mixing velocity of silt and water purification, thus raising silt enters the speed in inner core 2, and then improve the efficiency of cleaning silt.
In the present embodiment, region corresponding with sand outlet outside the barrel of inner core 2 is provided with training for sediment pipe 8, and training for sediment pipe 8 is tilted to lower setting, and the bottom of training for sediment pipe 8 is connected with self-styled flexible pipe 9.Self-styled flexible pipe 9 can be made up of canvas or rubber.Inner core 2 due to above-mentioned down-hole silt cleaning plant is provided with training for sediment pipe 8, one end of training for sediment pipe 8 is connected with self-styled flexible pipe 9, therefore, after opening driver, silt is from inner core 2, the region between inner core 2 and urceolus 1 is entered into via training for sediment pipe 8 and self-styled flexible pipe 9, get more and more when entering the silt in inner core 2 and urceolus 1, little by little, the silt between inner core 2 and urceolus 1 will cover self-styled flexible pipe 9, thus pushed down by the opening of self-styled flexible pipe 9, thus close this self-styled flexible pipe 9.Design like this, in the process promoted away from well by down-hole silt cleaning plant, the silt between inner core 2 and urceolus 1 can not be got back in inner core 2 again, also would not drop out from the charging aperture 6 of inner core 2 again.Thus add the quantity of sand and mud once cleaned out, and then improve the efficiency of cleaning silt.
Rotate to prevent urceolus 1, ensure that down-hole silt cleaning plant is in erectility in shaft bottom better simultaneously, in a kind of preferred embodiment of the present embodiment, down-hole silt cleaning plant also comprises the stabilizing base 10 of at least two tapers, down, the other end of stabilizing base 10 is connected with the bottom of urceolus 1 at the tip of stabilizing base 10.Design like this, when down-hole silt cleaning plant drops to shaft bottom time, in the silt at the bottom of most advanced and sophisticated fill-in well of the stabilizing base 10 of taper, thus urceolus 1 is avoided to rotate with axis of rotation 3, and down-hole silt cleaning plant angle excursion can be avoided excessive, and then improve the efficiency of cleaning silt.In FIG, the quantity of stabilizing base 10 is two, and is symmetrical arranged, thus the bottom of down-hole silt cleaning plant can be made more steady.When the quantity of stabilizing base 10 is two or more, multiple stabilizing base 10 evenly can be arranged along the bottom surface of down-hole silt cleaning plant.
In the present embodiment, down-hole silt cleaning plant also comprises two lift rings 11, two lift rings 11 are " n " type, and the arranged in a crossed manner and two ends that are each lift ring 11 of two lift rings 11 are all connected with the top of urceolus 1, and each lift ring 11 can be with the connected mode between urceolus 1 and welds.Lift ring 11 is connected with lifting appliance by rope, and the central area being positioned at the lift ring 11 of the top is provided with the connecting ring 12 passed for confession rope.Design like this, rope ties up on connecting ring 12, and promote or transfer down-hole silt cleaning plant by lift ring 11, because the quantity lifting ring 11 is two, and each lift ring 11 is two with the tie point of urceolus 1, therefore in the process risen or decline, the stress point of urceolus 1 is four, thus make the stressed more even of urceolus 1, make urceolus 1 more stable in the process risen or decline, and then make down-hole silt cleaning plant more stable in the process risen or decline, more easily erectility is in when down-hole silt cleaning plant drops to shaft bottom time.
For the ease of the silt entered between inner core 2 and urceolus 1 is poured out, baffle plate 4 and urceolus 1 are for removably connecting, connected mode between baffle plate 4 and urceolus 1 can be as under type: as shown in Figure 2, the edge of baffle plate 4 is provided with multiple clamp 13, each clamp 13 is all positioned at same plane with baffle plate 4, clamp 13 is provided with the pin-and-hole 14 running through clamp 13 thickness, on the barrel of urceolus 1, corresponding multiple clamp 13 offers multiple bayonet socket, clamp 13 stretches out bayonet socket, and baffle plate 4 is connected with urceolus 1 by the latch 15 through pin-and-hole 14.Further, bayonet socket comprises the longitudinal mouth being arranged at barrel bottom and the horizontal installing port being arranged at longitudinal mouth top, and longitudinal mouth is communicated with horizontal installing port.
In the process of installing, first each clamp 13 of baffle plate 4 is aimed at longitudinal mouth of each bayonet socket, then make clamp 13 longitudinally mouth move upward, after arriving the top of longitudinal mouth, horizontally rotate baffle plate 4, make each clamp 13 enter horizontal installing port, now each clamp 13 is not corresponding with longitudinal mouth, therefore can prevent clamp 13 from departing from away from longitudinal mouth, thus baffle plate 4 is engaged with urceolus 1.
Stabilizing base 10 can directly be connected with the bottom of urceolus 1, or stabilizing base 10 is arranged on the bottom surface of baffle plate 4, and stabilizing base 10 is connected with the bottom of urceolus 1 by baffle plate 4.
In the present embodiment, the top of axis of rotation 3 is set with bearing, and bearing is connected with urceolus 1 by bearing support.Design like this, can ensure that in the process of rotating at axis of rotation 3, urceolus 1 is not followed axis of rotation 3 and together rotated.
In order to fix axis of rotation 3 better, prevent vibration in the process of rotating at axis of rotation 3 from acutely striking the inwall of inner core 2, in one preferably embodiment, bearing comprises upper bearing (metal) and lower bearing, bearing support comprises top chock and step, upper bearing (metal) and lower bearing are all set in the top of axis of rotation 3 and interval is arranged, and upper bearing (metal) is installed in top chock, and lower bearing is installed in step.Design like this, axis of rotation 3 has two places be junction, thus makes the stability of axis of rotation 3 in the process of rotating stronger, prevents axis of rotation 3 from the process of rotating, striking the inwall of inner core 2, and then extends the application life of down-hole silt cleaning plant.
It is worth mentioning that, the size of each parts of above-mentioned down-hole silt cleaning plant can design according to specific needs, thus meets the different demands in work progress.
In a kind of detailed description of the invention of the present embodiment, inner core 2 and urceolus 1 are round iron cylinder, the length of urceolus 1 is 1.6 meters-2 meters, the diameter of inner core 2 is 1/3rd of urceolus 1 diameter, length is shorter than the length of urceolus 1 15 centimetres, the sidewall of inner core 2 cuts out four lines circular hole or square hole symmetrically as sand outlet, inner core 2 is connected with urceolus 1 by two groups of connecting rods 17, the quantity often organizing connecting rod 17 is two, two groups of connecting rods 17 lay respectively at the top of inner core 2 and the bottom of inner core 2, and two connecting rods 17 often in group are symmetrical arranged; Training for sediment pipe 8 is round iron pipe or square iron pipe, and length is 2 cm, can be made or the car rubber inner tube of a tyre is made from tube sealing by canvas; Driver is motor, and motor is arranged on the top of upper bearing (metal) frame 16, and is positioned at the inner side of lift ring 11 and is fixedly connected with lift ring 11, and the motor shaft on motor is connected with axis of rotation 3 by collar nut.Using above-mentioned down-hole silt cleaning plant to clear up a bite Sediment Siltation thickness is well between four meters to five meters time used be about 1.5 hours.And the weight of above-mentioned down-hole silt cleaning plant is about 170 jin, a traditional unit of weight, the work such as two workmans can complete carrying, entrucking, unload, convenient transportation and without danger.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a down-hole silt cleaning plant, it is characterized in that, comprise: urceolus, inner core is provided with in described urceolus, the bottom of described urceolus is provided with baffle plate, described baffle plate is connected with described urceolus, described baffle plate is provided with sand inlet, the diameter of described sand inlet is less than or equal to the diameter of described inner core, and be connected with the charging aperture of the bottom of described inner core, the side of described inner core is provided with multiple sand outlet, axis of rotation is provided with in described inner core, the side of described axis of rotation is provided with screw blade, one end of described axis of rotation is connected with driver, axis of rotation described in described driver drives rotates.
2. down-hole according to claim 1 silt cleaning plant, it is characterized in that, region corresponding with described sand outlet outside the barrel of described inner core is provided with training for sediment pipe, and described training for sediment pipe is tilted to lower setting, and the bottom of described training for sediment pipe is connected with self-styled flexible pipe.
3. down-hole according to claim 1 silt cleaning plant, is characterized in that, also comprise the stabilizing base of at least two tapers, and down, the other end of described stabilizing base is connected with the bottom of described urceolus at the tip of described stabilizing base.
4. down-hole according to claim 1 silt cleaning plant, is characterized in that, also comprise two lift rings, the two ends of each described lift ring are all connected with the top of described urceolus, and two described lift rings are arranged in a crossed manner.
5. down-hole according to claim 1 silt cleaning plant, is characterized in that, described lift ring is connected with lifting appliance by rope, and the described lift Ring current distribution region being positioned at the top is provided with the connecting ring passed for confession rope.
6. down-hole according to claim 1 silt cleaning plant, it is characterized in that, the edge of described baffle plate is provided with multiple clamp, each described clamp is all positioned at same plane with described baffle plate, described clamp is provided with the pin-and-hole running through described clamp thickness, on the barrel of described urceolus, corresponding multiple described clamp offers multiple bayonet socket, and described clamp stretches out described bayonet socket, and described baffle plate is connected with described urceolus by the latch through described pin-and-hole.
7. down-hole according to claim 6 silt cleaning plant, is characterized in that, described bayonet socket comprises the longitudinal mouth being arranged at described barrel bottom and the horizontal installing port being arranged at described longitudinal mouth top, and described longitudinal mouth is communicated with described horizontal installing port.
8. down-hole according to claim 3 silt cleaning plant, is characterized in that, described stabilizing base is arranged on the bottom surface of described baffle plate, and described stabilizing base is connected with the bottom of described urceolus by described baffle plate.
9. down-hole according to claim 1 silt cleaning plant, it is characterized in that, the top of described axis of rotation is set with bearing, and described bearing is connected with described urceolus by bearing support.
10. down-hole according to claim 9 silt cleaning plant, it is characterized in that, described bearing comprises upper bearing (metal) and lower bearing, described bearing support comprises top chock and step, described upper bearing (metal) and described lower bearing are all set in the top of described axis of rotation and interval is arranged, described upper bearing (metal) is installed in described top chock, and described lower bearing is installed in described step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610115936.8A CN105544653B (en) | 2016-03-01 | 2016-03-01 | A kind of underground silt cleaning plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610115936.8A CN105544653B (en) | 2016-03-01 | 2016-03-01 | A kind of underground silt cleaning plant |
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| Publication Number | Publication Date |
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| CN105544653A true CN105544653A (en) | 2016-05-04 |
| CN105544653B CN105544653B (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610115936.8A Active CN105544653B (en) | 2016-03-01 | 2016-03-01 | A kind of underground silt cleaning plant |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2001212C1 (en) * | 1991-03-29 | 1993-10-15 | Chebotarev Grigorij A | Device for cleaning shaft well |
| JP2009127343A (en) * | 2007-11-27 | 2009-06-11 | Nnc Engineering Inc | Bottom removal method of existing well casing pipe, and renovation method of existing well |
| CN201635114U (en) * | 2010-01-28 | 2010-11-17 | 郑州祥隆地质工程有限公司 | Negative-pressure sand bailing pipe |
| CN204492724U (en) * | 2015-03-16 | 2015-07-22 | 中国石油集团川庆钻探工程有限公司 | Sand-bailing equipment |
| CN205475438U (en) * | 2016-03-01 | 2016-08-17 | 绥棱县淼源井业科技有限公司 | Silt cleaning device in pit |
-
2016
- 2016-03-01 CN CN201610115936.8A patent/CN105544653B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2001212C1 (en) * | 1991-03-29 | 1993-10-15 | Chebotarev Grigorij A | Device for cleaning shaft well |
| JP2009127343A (en) * | 2007-11-27 | 2009-06-11 | Nnc Engineering Inc | Bottom removal method of existing well casing pipe, and renovation method of existing well |
| CN201635114U (en) * | 2010-01-28 | 2010-11-17 | 郑州祥隆地质工程有限公司 | Negative-pressure sand bailing pipe |
| CN204492724U (en) * | 2015-03-16 | 2015-07-22 | 中国石油集团川庆钻探工程有限公司 | Sand-bailing equipment |
| CN205475438U (en) * | 2016-03-01 | 2016-08-17 | 绥棱县淼源井业科技有限公司 | Silt cleaning device in pit |
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| CN105544653B (en) | 2017-10-27 |
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