CN208168867U - Heavy caliber test well is layered bailing test device and layering pumping device - Google Patents
Heavy caliber test well is layered bailing test device and layering pumping device Download PDFInfo
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- CN208168867U CN208168867U CN201820501507.9U CN201820501507U CN208168867U CN 208168867 U CN208168867 U CN 208168867U CN 201820501507 U CN201820501507 U CN 201820501507U CN 208168867 U CN208168867 U CN 208168867U
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Abstract
The utility model discloses heavy caliber test well layering bailing test device and layering pumping devices,Device includes the wall casing being lowered into pumped well,The inner tube being lowered into wall casing,At least contain two layers of water-bearing layer in pumped well,Water-bearing layer is sealing material layer between any two,Annular space is formed between said inner tube outer wall and borehole wall inside pipe wall,Said inner tube upper port is opened wide,Lower port blocks,Said inner tube outer wall is set with aerated capsule,The aerated capsule includes upper aerated capsule,Lower aerated capsule,The upper aerated capsule,Radial through hole is uniformly opened up in this section of inner tube between lower aerated capsule,Form floral tube,The wall casing connects at least two filter pipes,The quantity of filter pipe and the number of plies in water-bearing layer are equal,Filter pipe and water-bearing layer correspond,The position height of the floral tube corresponds to the position height of one of filter pipe,Tripping in suction pump in said inner tube.The utility model may be implemented to be layered in same pumped well and draw water, and obtain the permeability parameters of different water cut layer.
Description
Technical field
The utility model relates to Hydrogeologic Survey bailing test, specifically heavy caliber test well is layered bailing test
Device and layering pumping device.
Background technique
Bailing test method is layered for huge thick aquifer at present, there are mainly two types of：
First method, be same place from top to bottom use variable diameter method be sequentially completed each water-bearing layer at well and pumping
Water test is first completed the Cheng Jing in the top water-bearing layer with heavy caliber, and carries out this layer of bailing test；Continue in the well later
Deepen the Cheng Jing in the next water-bearing layer of completion, and carries out the bailing test in the second water-bearing layer；It repeats the above process downwards, completes the
Three, the bailing test in the water-bearing layers such as 4th.Between each water-bearing layer（I.e. between well casing）It needs to carry out good sealing, i.e., does not allow
The water in portion water-bearing layer leaks into lower part and draws water in water-bearing layer and influence bailing test achievement.This kind of well drilling technology often water-stagnating effect
It is bad, it is easy to appear disused well situation.It is reported that because sealing it is bad caused by the failure of second and third layer of bailing test the case where it is more.This
Kind well drilling technology is complicated, and difficulty of construction is big, and variable diameter sealing is difficult in well, wastes tubing, and bailing test process lasts length, efficiency
It is low.
Second method is to beat a well to each water-bearing layer in different parts respectively at well for each water-bearing layer, single
Well is alone become, carries out bailing test respectively, every well will carry out sealing for water-bearing layer other than the target zone that draws water certainly.This side
Method needs more well-diggings, and big at well casing material requirement, more at well quantity, construction cost is larger, and simple process is long in time limit.
Summary of the invention
The purpose of this utility model is to provide heavy caliber test well layering bailing test device and layering pumping devices, can be with
Realization is layered in same pumped well draws water, and obtains the permeability parameters of different water cut layer, simple at well, saves tubing, sealing effect
Fruit is ideal, determines that parameter is accurate, high-efficient, substantially reduces construction cost.
In order to achieve the above objectives, the utility model uses following technical solution, and heavy caliber test well is layered examination of drawing water
Experiment device and layering pumping device, including the wall casing being lowered into pumped well, the inner tube being lowered into wall casing, in pumped well extremely
Contain two layers of water-bearing layer less, water-bearing layer is sealing material layer between any two, is formed between said inner tube outer wall and borehole wall inside pipe wall
Annular space, said inner tube upper port are opened wide, and lower port blocks, and said inner tube outer wall is set with aerated capsule, and the aerated capsule includes
Upper aerated capsule, lower aerated capsule uniformly open up radial direction in this section of inner tube between the upper aerated capsule, lower aerated capsule
Through hole forms floral tube, or directlys adopt the position that preset floral tube is welded between aerated capsule, lower aerated capsule,
The wall casing connects at least two filter pipes, and the quantity of filter pipe and the number of plies in water-bearing layer are equal, filter pipe and water-bearing layer one
One is corresponding, and the position height of the floral tube corresponds to the position height of one of filter pipe, tripping in suction pump in said inner tube.
Said inner tube outer wall also sets up two pairs of capsule protection rings, and one pair of them distinguish axial limiting in the two of upper aerated capsule
End, another pair distinguish axial limiting in the both ends of lower aerated capsule.
The upper aerated capsule or lower aerated capsule include capsule ontology, and air inflation nozzle is arranged in capsule ontology, and air inflation nozzle passes through
Gas tube connects the outer inflator pump of well.
In order to achieve the above objectives, the utility model uses following technical solution, and heavy caliber test well is layered pumping device,
Including inner tube, said inner tube upper port is opened wide, and lower port blocks, and said inner tube outer wall is set with aerated capsule, the aerated capsule
Including upper aerated capsule, lower aerated capsule, uniformly opened up in this section of inner tube between the upper aerated capsule, lower aerated capsule
Radial through hole forms floral tube, or directlys adopt the position that preset floral tube is welded between aerated capsule, lower aerated capsule
It sets, said inner tube outer wall also sets up two pairs of capsule protection rings, and one pair of them distinguish axial limiting in the both ends of upper aerated capsule, separately
For axial limiting in the both ends of lower aerated capsule, the upper aerated capsule or lower aerated capsule include capsule ontology, glue to a pair respectively
Air inflation nozzle is arranged in capsule ontology.
The utility model has the advantages that compared with prior art：
The device manufacturing is simple, and installation behaviour does conveniently, and equipment may be reused, simplify into well process, not only save
Largely at well casing material, a large amount of filtrates and sealing material are also saved, the entire bailing test duration is especially shortened, improves effect
Rate greatlys save construction investment and cost.The present apparatus is applied in the sub- reservoir bailing test of Inner Mongol East Platform, and effect is very
It is ideal.
Detailed description of the invention
Fig. 1 is that structure of the heavy caliber test well layering bailing test device of the utility model in corresponding first water-bearing layer is shown
It is intended to；
Fig. 2 is that structure of the heavy caliber test well layering bailing test device of the utility model in corresponding second water-bearing layer is shown
It is intended to；
Fig. 3 is that structure of the heavy caliber test well layering bailing test device of the utility model in corresponding third water-bearing layer is shown
It is intended to；
Fig. 4 is that the heavy caliber test well layering bailing test device of the utility model shows in the structure of corresponding the Fourth Aquifer
It is intended to；
Vertical section structure schematic diagram when Fig. 5 is aerated capsule unaerated；
Cross-sectional structure schematic diagram when Fig. 6 is aerated capsule unaerated；
Fig. 7 is vertical section structure schematic diagram when aerated capsule is inflated；
Fig. 8 is cross-sectional structure schematic diagram when aerated capsule is inflated.
In figure：Upper aerated capsule 1, lower aerated capsule 2, floral tube 3, inner tube 4, the first water-bearing layer 5, the second water-bearing layer 6, third
Water-bearing layer 7, the Fourth Aquifer 8, sealing material layer 9, wall casing 10, filter pipe 11, capsule protection ring 12, capsule protection ring 13,
Aerated capsule ontology 101, capsule inner cavity 102.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
According to Fig. 1 to Fig. 8, heavy caliber test well is layered bailing test device, including the well being lowered into pumped well
Wall pipe 10, the inner tube 4 being lowered into wall casing at least contain two layers of water-bearing layer in pumped well, and the embodiment in drawing uses 4
Layer water-bearing layer, respectively the first water-bearing layer 5, the second water-bearing layer 6, third water-bearing layer 7, the Fourth Aquifer 8, water-bearing layer is between any two
For sealing material layer 9, annular space is formed between said inner tube outer wall and borehole wall inside pipe wall, said inner tube upper port is opened wide, lower port
Block, said inner tube outer wall is set with aerated capsule, and the aerated capsule includes upper aerated capsule 1, lower aerated capsule 2, it is described on
Radial through hole is uniformly opened up in this section of inner tube between aerated capsule, lower aerated capsule, forms floral tube 3, or directly adopt
It is welded on the position between upper aerated capsule, lower aerated capsule with preset floral tube, the wall casing connects at least two drainages
Pipe 11, the quantity of filter pipe and the number of plies in water-bearing layer are equal, and filter pipe and water-bearing layer correspond, the position height of the floral tube
Correspond to the position height of one of filter pipe, tripping in suction pump in said inner tube.Said inner tube outer wall also sets up two pairs of capsules
Protection ring, one pair of them distinguish axial limiting in the both ends of upper aerated capsule, and another pair distinguishes axial limiting in lower aerated capsule
Both ends.For example capsule protection ring 12, capsule protection ring 13 constitute one pair of them, the upper aerated capsule or lower aerated capsule packet
Capsule ontology 101 is included, air inflation nozzle is arranged in capsule ontology, and air inflation nozzle connects the outer inflator pump of well by gas tube, to capsule inner cavity 102
Middle inflation.
According to Fig. 1 to Fig. 8, heavy caliber test well is layered pumping device, including inner tube, and said inner tube upper port is opened wide,
Lower port blocks, and said inner tube outer wall is set with aerated capsule, and the aerated capsule includes upper aerated capsule 1, lower aerated capsule 2,
Radial through hole is uniformly opened up in this section of inner tube between the upper aerated capsule, lower aerated capsule, forms floral tube 3, or
The position that preset floral tube is welded between aerated capsule, lower aerated capsule is directlyed adopt, said inner tube outer wall also sets up two
To capsule protection ring, one pair of them distinguish axial limiting in the both ends of upper aerated capsule, and axial limiting fills another pair under respectively
The both ends of gas capsule.For example capsule protection ring 12, capsule protection ring 13 constitute one pair of them, the upper aerated capsule or lower inflation
Capsule includes capsule ontology 101, and air inflation nozzle is arranged in capsule ontology.
It realizes at a glance with completion layering bailing test in hole diameter well.Main device：Pumped well inner tube, sealing capsule, height
Press inflator pump.The pumping in each water-bearing layer can be completed in the tripping in suction pump in pumped well inner tube, adjustment pumped well inner tube installation site
Water test.
Using same hole diameter Cheng Jing.The well at a glance with hole diameter is completed in multiple water-bearing layers, and is layered feelings by water-bearing layer
Condition design is drawn water layer position and length, and layering sealing position and length are designed, later by drawing water under layer and the installation of sealing position
Filter pipe and wall casing are put, filtrate is successively put into（Drainage pipeline section）And sealing material.This process only at well process, with routine at
Well technique is identical, only increases filtrate, sealing material gradation impressions, and monitored placement position accuracy.
Pumped well inner tube is designed, for being layered（Or segmentation）Extract target water-bearing layer underground water.Inner tube diameter will be according to pumping
Well and bailing test water pump outer diameter are designed.Caliber is less than into well well casing internal diameter, and certain interval is reserved between well casing,
Convenient for being sealed between well casing and inner tube.Inner tube uses seamless steel pipe, a length of non-perforated pipe of 70 ~ 100cm of bottom end（I.e. tube wall without
Hole）, and pipe end is blocked into welding tightly with iron plate.According to pumped well drainage length of tube and sealing fragment position, design in inner tube
Floral tube length drills out circular hole in interior tube bottom end 80cm with upper section（3 ~ 4cm of aperture, 5 ~ 8cm of spacing）, floral tube length should reach filter
The 40 ~ 60% of length of pipe（It need to specifically be determined according to water yield, drainage length of tube, barrel hole size is estimated）, the above are non-porous for floral tube
Pipe, 4 ~ 6m of every section pipe range（It is determined according to boring tower height）, screwed connection is used between pipe, guarantees that junction is sealed without water leakage.In addition,
It is also designed to screwed connection between floral tube and non-perforated pipe, is easily installed.
Design specialized aerated capsule, for the hermetic seal between pumped well inner tube and well casing.Aerated capsule cross section is
Round, internal diameter is slightly larger than pumped well inner tube outside diameter, is easily installed.Capsule outer diameter is less than into well well casing 7 ~ 8cm of internal diameter, and capsule is non-to be filled
General 1.5 ~ the 2.0cm of thickness under the conditions of gas, 60 ~ 80cm of length inflate 1.0 ~ 1.5MPa of differential pressure requirements.
According to target water-bearing interval drainage length of tube and sealing position, water-stop glue is installed at the floral tube both ends of pumped well inner tube
Capsule, it is therefore an objective to the floral tube section of the pumped well inner tube of tripping in is corresponding with pumped well filter pipe, and separate floral tube and other water-bearing layers
Between connection, make the water pump being installed in pumped well inner tube be only capable of extract target water-bearing layer in underground water, complete this layer take out
Water test.
It can be sequentially completed from top to bottom or from bottom to top and draw water according to the thickness in each water-bearing layer and filter pipe, sealing fragment position
Test, such as each water-bearing layer filter pipe differ larger with sealing section interval, need to adjust aerated capsule position.Pumped well inner tube, inflation
Capsule is reusable.High-pressure inflating pump is mainly used for the inflation of sealing capsule.
According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, bailing test implementation process：
1, at well process：
1）Selected wells for pumping test well location carries out drilling well using Φ 600mm hole diameter drilling machine, disposably completes drilling well, well depth
118m.Same hole diameter completes pumped well, installs well casing by each water-bearing layer position and sealing section position, and launch each section of filter respectively
Material, carries out each section of sealing.The well is essentially conventional well drilling technology, and journey is launched in the segmentation for only increasing filtrate and sealing material
Sequence.
2）By draw water layer position and the length, relative water resisting layer and sealing position of design, tripping in wall casing and drainage are installed
Pipe（Wall casing and drainage bore are Φ 300mm）, filter pipe is more, respectively corresponds respective water-bearing layer.It is adopted between each section pipe
It is attached with welding procedure.
3）By wall casing and drainage length of tube, sealing material and filter are successively put into outside wall casing and outside filter pipe
Material, carries out the sealing between relative water resisting layer and wall casing, prevents the connection between adjacent aquifers.
4）Using air compressor machine well-flushing, bailing test can be carried out after water quality is limpid.
2, bailing test process：
1）Extract the first water-bearing layer underground water：Lower aerated capsule is inserted in pumped well inner tube lower end（Bore is Φ
220mm）, this section of non-porous pipe range 12m.Upper end connects floral tube（Long 14m）, 6m non-perforated pipe is connected later, and is inserted in and is filled at 27m
Gas capsule, two capsules spacing about 26m, between with high-pressure plastic tubule connect, can simultaneously give two capsules inflation.Well head is reserved
0.5m, and fix pumped well inner tube with pipe clamp and prevent from falling into well.At this point, aerated capsule is located at the first water-bearing layer and the under lower end
Relative water resisting layer i.e. sealing material layer position between two water-bearing layers.Then capsule is filled using high-pressure inflating pump
Gas, control glue intraluminal pressure are greater than 0.3 ~ 0.5MPa of capsule external pressure（Consider the pressure of water）, guarantee pumped well inner tube and well
It is sealed without water leakage between wall pipe.Installation and tripping in deep well submerged pump carry out bailing test, completion first in pumped well inner tube later
The bailing test in water-bearing layer works.See Fig. 1.It indicates pumped well inner tube first water-bearing layer of floral tube section tripping in position, it will be upper and lower
Aerated capsule corresponds to sealing section gas-flow closure, later can in inner tube tripping in water pump complete first water-bearing layer examination of drawing water
It tests.
2）Extract the second water-bearing layer underground water：Water pump is proposed first, aerated capsule is deflated release, and capsule retracts.It is taking out
Well upper end of inner tube connects the non-porous pumped well inner tube of 30m long successively, and G.I.H, well head reserve 0.5m, fixes pumping with pipe clamp
Well inner tube prevents from falling into well.At this point, water barrier portion of the lower aerated capsule between the second water-bearing layer and third water-bearing layer
Position, water barrier position of the upper aerated capsule between the second water-bearing layer and the first water-bearing layer.Then high-pressure inflating pump pair is used
Capsule is inflated, and control glue intraluminal pressure is greater than 0.3 ~ 0.5MPa of capsule external pressure（Consider the pressure of water）, guarantee to draw water
It is sealed without water leakage between well inner tube and wall casing.Simultaneously tripping in deep well submerged pump carries out examination of drawing water for installation in pumped well inner tube later
It tests, completes the bailing test work in the second water-bearing layer.See Fig. 2.It indicates second water-bearing layer of pumped well inner tube floral tube section tripping in
Upper and lower aerated capsule is corresponded to sealing section gas-flow closure by position, later can in inner tube tripping in water pump complete second it is aqueous
The bailing test of layer.
3）Extract third water-bearing layer underground water：Water pump is proposed first, aerated capsule is deflated release, and capsule retracts.It is taking out
Well upper end of inner tube connects the non-porous pumped well inner tube of 26m long successively, and G.I.H, well head reserve 0.5m, fixes pumping with pipe clamp
Well inner tube prevents from falling into well.At this point, water barrier portion of the lower aerated capsule between third water-bearing layer and the Fourth Aquifer
Position, water barrier position of the upper aerated capsule between third water-bearing layer and the second water-bearing layer.Then high-pressure inflating pump pair is used
Capsule is inflated, and control glue intraluminal pressure is greater than 0.3 ~ 0.5MPa of capsule external pressure（Consider the pressure of water）, guarantee to draw water
It is sealed without water leakage between well inner tube and wall casing.Simultaneously tripping in deep well submerged pump carries out examination of drawing water for installation in pumped well inner tube later
It tests, completes the bailing test work in third water-bearing layer.See Fig. 3.It indicates pumped well inner tube floral tube section tripping in third water-bearing layer
Upper and lower aerated capsule is corresponded to sealing section gas-flow closure by position, later can to complete third aqueous for tripping in water pump in inner tube
The bailing test of layer.
4）Extract the Fourth Aquifer underground water：If the thickness degree and top pervious bed consistency of thickness, repeat above-mentioned mistake
This layer of bailing test can be completed in journey.See Fig. 4.It indicates the 4th water-bearing layer position of pumped well inner tube floral tube section tripping in, it will be upper
Lower aerated capsule corresponds to sealing section gas-flow closure, can complete the examination of drawing water in the 4th water-bearing layer by tripping in water pump in inner tube later
It tests.But if the Fourth Aquifer pervious bed thickness is smaller, do not had if aerated capsule in continuation tripping in pumped well inner tube in this way
Impermeable role.Therefore, it need to propose pumped well inner tube, go to fall down aerated capsule section, stay certain length flower by the Fourth Aquifer thickness
Pipe, upper aerated capsule is inserted in the pumped well inner tube of floral tube top, is sequentially connected pumped well inner tube and G.I.H, by design position
It sets and capsule is mounted on water barrier position between third water-bearing layer and the Fourth Aquifer, later fix inner tube.Tripping in is installed
The bailing test work of the Fourth Aquifer can be completed in water pump.
5）Explanation：Pumped well inner tube 4 ~ 6m of every section length can be combined connection according to each segment length.Aerated capsule according to
The independent design customization of this equipment, effect are very good.
In the description of the present invention, it should be understood that temporald eixis or positional relationship are based on the figure
Orientation or positional relationship is merely for convenience of description the utility model, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. heavy caliber test well be layered bailing test device, including be lowered into pumped well wall casing, be lowered into wall casing
Inner tube, two layers of water-bearing layer is at least contained in pumped well, water-bearing layer is sealing material layer between any two, which is characterized in that described
Annular space is formed between outer wall of inner tube and borehole wall inside pipe wall, said inner tube upper port is opened wide, and lower port blocks, said inner tube outer wall set
Fill aerated capsule, the aerated capsule includes upper aerated capsule, lower aerated capsule, the upper aerated capsule, lower aerated capsule it
Between this section of inner tube on uniformly open up radial through hole, form floral tube, or directly adopt preset floral tube and be welded on and fill
Position between gas capsule, lower aerated capsule, the wall casing connect at least two filter pipes, the quantity of filter pipe and water-bearing layer
The number of plies it is equal, filter pipe and water-bearing layer correspond, and the position height of the floral tube corresponds to the position of one of filter pipe
Highly, tripping in suction pump in said inner tube.
2. heavy caliber test well according to claim 1 is layered bailing test device, which is characterized in that said inner tube outer wall
Two pairs of capsule protection rings are also set up, one pair of them distinguish axial limiting in the both ends of upper aerated capsule, and another pair is axial respectively to be limited
Positioned at the both ends of lower aerated capsule.
3. heavy caliber test well according to claim 1 or 2 is layered bailing test device, which is characterized in that filled on described
Gas capsule or lower aerated capsule include capsule ontology, and air inflation nozzle is arranged in capsule ontology, and air inflation nozzle is connected by gas tube to be filled outside well
Air pump.
4. heavy caliber test well is layered pumping device, which is characterized in that including inner tube, said inner tube upper port is opened wide, lower port envelope
Stifled, said inner tube outer wall is set with aerated capsule, and the aerated capsule includes upper aerated capsule, lower aerated capsule, the upper inflation
Radial through hole is uniformly opened up in this section of inner tube between capsule, lower aerated capsule, forms floral tube, or directly adopt preset
Floral tube be welded on the position between aerated capsule, lower aerated capsule, said inner tube outer wall also sets up two pairs of capsule protection rings,
One pair of them distinguish axial limiting in the both ends of upper aerated capsule, and another pair distinguishes axial limiting in the both ends of lower aerated capsule,
The upper aerated capsule or lower aerated capsule include capsule ontology, and air inflation nozzle is arranged in capsule ontology.
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| CN201820501507.9U CN208168867U (en) | 2018-04-10 | 2018-04-10 | Heavy caliber test well is layered bailing test device and layering pumping device |
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| CN201820501507.9U CN208168867U (en) | 2018-04-10 | 2018-04-10 | Heavy caliber test well is layered bailing test device and layering pumping device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590644A (en) * | 2018-04-10 | 2018-09-28 | 辽宁省水利水电勘测设计研究院有限责任公司（原名称为辽宁省水利水电勘测设计研究院） | Heavy caliber test well is layered bailing test device and layering pumping device |
| CN110984965A (en) * | 2019-11-19 | 2020-04-10 | 四川省蜀通岩土工程公司 | Air bag type layered water pumping test system and method for drilling holes in same diameter |
-
2018
- 2018-04-10 CN CN201820501507.9U patent/CN208168867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590644A (en) * | 2018-04-10 | 2018-09-28 | 辽宁省水利水电勘测设计研究院有限责任公司（原名称为辽宁省水利水电勘测设计研究院） | Heavy caliber test well is layered bailing test device and layering pumping device |
| CN110984965A (en) * | 2019-11-19 | 2020-04-10 | 四川省蜀通岩土工程公司 | Air bag type layered water pumping test system and method for drilling holes in same diameter |
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