CN118997690B - Hydrogeological exploration layering sealing device - Google Patents
Hydrogeological exploration layering sealing device Download PDFInfo
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- CN118997690B CN118997690B CN202411309038.7A CN202411309038A CN118997690B CN 118997690 B CN118997690 B CN 118997690B CN 202411309038 A CN202411309038 A CN 202411309038A CN 118997690 B CN118997690 B CN 118997690B
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- pipe section
- elastic ring
- elastic
- pipe
- hydrogeological exploration
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- 238000007789 sealing Methods 0.000 title description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 15
- 239000012266 salt solution Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 238000002955 isolation Methods 0.000 abstract description 14
- 239000000440 bentonite Substances 0.000 description 6
- 229910000278 bentonite Inorganic materials 0.000 description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 6
- 238000005553 drilling Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- RFFFKMOABOFIDF-UHFFFAOYSA-N Pentanenitrile Chemical compound CCCCC#N RFFFKMOABOFIDF-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
- Pipe Accessories (AREA)
Abstract
本发明涉及水文地质勘探技术领域，具体公开了一种水文地质勘探分层止水装置，包括弹性环和管体，管体由第一管段、喇叭形管段和第二管段组成，喇叭形管段内径小的一端和第二管段的一端固定连接，喇叭形管段内径大的一端和第一管段的一端固定连接，弹性环套设在喇叭形管段的外周侧，第二管段上设有沿第二管段长度方向移动的移动件，第二管段上安装有可对移动件限位的第二电磁锁，移动件和弹性环外边沿通过连接件连接，第一管段上设有可对弹性环限位的第一电磁锁，第一管段和弹性环通过弹性件连接，本水文地质勘探分层止水装置对相邻含水层的隔离不受水压影响，利用弹性环自身的弹力为动力源实现钻孔内的隔离，结构简单，操作方便。
The invention relates to the technical field of hydrogeological exploration, and specifically discloses a hydrogeological exploration stratified water-stopping device, comprising an elastic ring and a pipe body, wherein the pipe body consists of a first pipe section, a trumpet-shaped pipe section and a second pipe section, an end of the trumpet-shaped pipe section with a small inner diameter is fixedly connected to one end of the second pipe section, an end of the trumpet-shaped pipe section with a large inner diameter is fixedly connected to one end of the first pipe section, the elastic ring is sleeved on the outer peripheral side of the trumpet-shaped pipe section, a moving part that moves along the length direction of the second pipe section is provided on the second pipe section, a second electromagnetic lock that can limit the moving part is installed on the second pipe section, the moving part and the outer edge of the elastic ring are connected through a connecting part, a first electromagnetic lock that can limit the elastic ring is provided on the first pipe section, and the first pipe section and the elastic ring are connected through an elastic part. The isolation of adjacent aquifers by the hydrogeological exploration stratified water-stopping device is not affected by water pressure, and the isolation in the borehole is realized by using the elastic force of the elastic ring itself as a power source, and the structure is simple and the operation is convenient.
Description
Technical Field
The invention relates to the technical field of hydrogeological exploration, in particular to a layered water stop device for hydrogeological exploration.
Background
In the hydrogeological exploration process, in order to find out the hydrographic data such as the distribution, the permeability, the water burst flow and the like of each aquifer underground, hydrogeological drilling holes penetrating through a plurality of aquifers are often drilled, adjacent aquifers are often required to be isolated in the drilling holes in order to avoid mixing of water in different aquifers through the drilling holes, and then the hydrographic data of the aquifers are often collected by using a water pumping test.
In the prior art, an inflated air bag is often used for separating adjacent aquifers, but the air bag needs an additional inflation device, and when the hydraulic pressure of the environment where the air bag is positioned is too high, the air pressure requirement on the inflation device is high, and the air bag is difficult to expand.
Disclosure of Invention
The invention aims to overcome the existing defects, provides the hydrogeological exploration layered water stop device, is not influenced by water pressure on isolation of adjacent aquifers, improves the reliability of the hydrogeological exploration layered water stop device, and realizes isolation in a borehole by using the elasticity of the elastic ring as a power source, and has the advantages of simple structure and convenient operation.
The hydrogeological exploration layered water stop device comprises an elastic ring and a tube body, wherein the tube body consists of a first tube section, a horn-shaped tube section and a second tube section, one end of the horn-shaped tube section with a small inner diameter is fixedly connected with one end of the second tube section, one end of the horn-shaped tube section with a large inner diameter is fixedly connected with one end of the first tube section, the elastic ring is sleeved on the peripheral side of the horn-shaped tube section, a moving part which moves along the length direction of the second tube section is arranged on the second tube section, a second electromagnetic lock which can limit the moving part is arranged on the second tube section, the outer edge of the moving part is connected with the outer edge of the elastic ring through a connecting piece, a first electromagnetic lock which can limit the elastic ring is arranged on the first tube section, and the first tube section is connected with the elastic ring through the elastic part.
The second electromagnetic lock limits the moving part, the first electromagnetic lock limits the elastic ring, and the outer edge of the elastic ring inclines to the second pipe section.
And the second electromagnetic lock releases the moving part, and the outer edge of the elastic ring drives the moving part to move towards the trumpet-shaped pipe section through the connecting part.
The first electromagnetic lock releases the elastic ring, and the elastic piece pushes the elastic ring to move towards the direction where the second pipe section is located.
As a preferable technical scheme of the invention, the connecting piece is an annular soft belt, the moving piece is an annular ring, the annular ring is in sliding sealing fit with the periphery of the second pipe section, two ends of the annular soft belt are fixedly connected with the outer side of the annular ring and the outer edge of the elastic ring respectively, and the pipe body, the annular ring, the annular soft belt and the elastic ring form a closed cavity.
As a preferable technical scheme of the invention, the annular soft belt is provided with an electromagnetic valve communicated with the closed cavity.
As a preferable technical scheme of the invention, the pipe body is provided with two connecting pipes communicated with the closed cavity.
After the water stopping operation, the salt solution which flows circularly is injected into the closed cavity through the two connecting pipes, and the temperature of the salt solution is lower than-5 ℃.
As a preferable technical scheme of the invention, the inner circumference side of the elastic ring is provided with a plurality of concave grooves.
When the elastic ring is sleeved on the outer peripheral side of the trumpet-shaped pipe section, water is filled in the concave groove of the elastic ring.
As a preferable technical scheme of the invention, an electric shock gas generator is arranged in the closed cavity.
As a preferable technical scheme of the invention, the number of the elastic elements is not less than two, and the elastic elements are distributed around the first pipe section at equal angles.
As a preferable technical scheme of the invention, the elastic piece comprises a closed shell, a sliding block which slides in a sealing way is arranged in the inner cavity of the shell, one side of the sliding block is fixedly connected with one end of a sliding rod, the other end of the sliding rod penetrates through and extends to the outer side of the shell, a spring is arranged at the position, far away from the sliding rod, of the sliding block, the inner cavity of the shell is divided into a first cavity and a second cavity by the sliding block, a communication hole which is communicated with the first cavity and the second cavity is formed in the sliding block, and the shell is filled with liquid.
Wherein, the sliding block is in the sliding process of casing inner chamber, and the liquid in the casing flows through the intercommunicating pore.
As a preferable technical scheme of the invention, the invention further comprises a splicing pipe, one end of the splicing pipe is detachably connected with one end of the second pipe section, and the other end of the splicing pipe is detachably connected with one end of the first pipe section.
As a preferable embodiment of the present invention, a collar is fixed to an outer peripheral side of the first pipe section.
Compared with the prior art, the invention has the beneficial effects that:
1. The hydrogeological exploration layered water stop device disclosed by the invention is free from the influence of water pressure on the isolation of adjacent aquifers, the reliability of the hydrogeological exploration layered water stop device is improved, and the isolation in a borehole is realized by using the elasticity of the elastic ring as a power source, so that the hydrogeological exploration layered water stop device is simple in structure and convenient to operate.
2. According to the hydrogeological exploration layered water stop device, on one hand, the moving part is released by the second electromagnetic lock, the outer edge of the elastic ring drives the moving part to move towards the horn-shaped pipe section through the connecting part, the outer edge of the elastic ring is attached to the wall of the hole, the elastic ring achieves isolation of adjacent aquifers to achieve layered water stop of the hole, on the other hand, the connecting part is an annular soft belt, the moving part is an annular ring, the outer edge of the elastic ring drives the moving part to move towards the horn-shaped pipe section through the connecting part, the volume of the closed cavity changes to prevent the outer edge of the elastic ring from moving towards the wall of the hole, a worker adjusts the volume of the closed cavity by controlling the opening degree or opening time of the electromagnetic valve, so that the relative speed of the outer edge of the elastic ring and the wall of the hole are reduced when the outer edge of the elastic ring is scratched by rock of the wall of the hole, the isolation effect of the hydrogeological exploration layered water stop device on the adjacent aquifers is guaranteed, on the other hand, circulating salt solution is injected into the closed cavity through the two connecting pipes, the temperature of the salt solution is lower than-5 ℃, water between the annular soft belt and the wall is iced, the position of the annular soft belt corresponds to the annular soft belt, and the isolation effect on the adjacent aquifer is improved.
3. According to the hydrogeological exploration layered water stop device, when the elastic ring is sleeved on the peripheral side of the trumpet-shaped pipe section, water is filled in the concave groove of the elastic ring, the water in the concave groove is frozen, the position of the elastic ring corresponding to the freezing is jacked up, the elastic ring is released by the first electromagnetic lock, the elastic piece pushes the elastic ring to move towards the direction where the second pipe section is located, the elastic ring extrudes ice at the concave groove, the ice at the concave groove melts in the sliding process, and the resistance of the elastic ring in the sliding process along the trumpet-shaped pipe section is reduced.
4. According to the hydrogeological exploration layered water stop device, in the sliding process of the sliding block in the inner cavity of the shell, liquid in the shell flows through the communicating holes, and deformation of the elastic piece is prevented from being influenced by stone chips or bentonite in a drilled hole.
5. According to the hydrogeological exploration layered water stop device, the annular soft belt prevents bentonite or sediment from appearing on a sliding path of the circular ring, prevents the bentonite or sediment from affecting the circular ring to slide along the second pipe section, and improves the reliability of the hydrogeological exploration layered water stop device.
Drawings
FIG. 1 is a schematic view of a front-of-down tube state structure of the present invention;
FIG. 2 is a schematic view of the partial cross-sectional structure of FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of a water stop state structure according to the present invention;
FIG. 5 is a schematic view of a lifting tube structure according to the present invention;
FIG. 6 is a schematic view of the elastic member structure of the present invention;
FIG. 7 is a schematic view of the elastic ring structure of the present invention.
In the figure, a connecting pipe 1, a ferrule 2, a first electromagnetic lock 3, an elastic ring 4, a connecting piece 5, an electromagnetic valve 6, a second electromagnetic lock 7, a pipe body 8, a first pipe section 801, a horn-shaped pipe section 802, a second pipe section 803, a splicing pipe 9, an elastic piece 10, a sliding rod 101, a shell 102, a sliding block 103, a spring 104, a moving piece 11 and a shock gas generator 12 are arranged.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Embodiment one:
Referring to fig. 1-5 and 7, the embodiment discloses a layered water stop device for hydrogeological exploration, which comprises an elastic ring 4 and a pipe body 8, wherein the pipe body 8 is composed of a first pipe section 801, a trumpet-shaped pipe section 802 and a second pipe section 803, one end of the trumpet-shaped pipe section 802 with a small inner diameter is fixedly connected with one end of the second pipe section 803, one end of the trumpet-shaped pipe section 802 with a large inner diameter is fixedly connected with one end of the first pipe section 801, the elastic ring 4 is hooped on the periphery side of the trumpet-shaped pipe section 802, the elastic ring 4 can move on the periphery side of the trumpet-shaped pipe section 802, a moving part 11 which moves along the length direction of the second pipe section 803 is arranged on the second pipe section 803, a second electromagnetic lock 7 which can limit the moving part 11 is arranged on the second pipe section 803, the outer edges of the moving part 11 and the elastic ring 4 are connected through a connecting part 5, a first electromagnetic lock 3 which can limit the elastic ring 4 is arranged on the first pipe section 801, and the elastic ring 4 are connected through an elastic part 10.
The operation before pipe discharging is that the second electromagnetic lock 7 limits the moving piece 11, the first electromagnetic lock 3 limits the elastic ring 4, and the outer edge of the elastic ring 4 inclines to the second pipe section 803.
In the water stopping operation, the second electromagnetic lock 7 releases the moving part 11, and the outer edge of the elastic ring 4 drives the moving part 11 to move towards the trumpet-shaped pipe section 802 through the connecting part 5.
The first electromagnetic lock 3 releases the elastic ring 4, and the elastic piece 10 pushes the elastic ring 4 to move towards the direction of the second pipe section 803.
Further, the elastic ring 4 is made of elastic butyl cyanide rubber or elastic butadiene rubber, and the moving member 11 is a sliding block or sliding ring.
Further, the elastic member 10 is an elastic rod, a spring or a spring damper.
The first electromagnetic lock 3 and the second electromagnetic lock 7 are electrically connected with an external control switch group.
Further, the first electromagnetic lock 3 is an electric mortise lock or a magnetic lock in the prior art, the second electromagnetic lock 7 is an electric mortise lock or a magnetic lock in the prior art, the electric mortise lock enables a lock tongue to extend in or withdraw from through current control to achieve locking limit, the magnetic lock is composed of an electromagnet and a lock body, and when current passes through the electromagnet, the magnetic force generated by the electromagnet adsorbs the lock body together to achieve locking limit.
The first electromagnetic lock 3, the second electromagnetic lock 7, and the like used in the present invention are common electronic components in the prior art, and the installation method, the working mode, and the structure thereof are known techniques, and are not described herein.
The working process and principle of the embodiment are as follows:
Before the pipe is down, the second electromagnetic lock 7 limits the moving part 11, the first electromagnetic lock 3 limits the elastic ring 4, the outer edge of the elastic ring 4 inclines to the second pipe section 803, elastic potential energy is accumulated on the elastic ring 4, then the hydrogeological exploration layered water stop device is installed on an external drill pipe, and the external drill pipe drives the hydrogeological exploration layered water stop device to move to a preset depth.
And in the water stopping operation, a worker releases the moving part 11 from the second electromagnetic lock 7, the outer edge of the elastic ring 4 drives the moving part 11 to move towards the horn-shaped pipe section 802 through the connecting part 5, the outer edge of the elastic ring 4 is attached to the wall of the drilling hole, and the elastic ring 4 realizes the isolation of adjacent aquifers and realizes the layered water stopping of the drilling hole.
Before lifting the pipe, the staff makes the first electromagnetic lock 3 release the elastic ring 4, the elastic piece 10 pushes the elastic ring 4 to move towards the direction where the second pipe section 803 is located, the diameter of the outer edge of the elastic ring 4 is reduced, the elastic ring 4 is separated from the wall of the hole, and then the hydrogeological exploration layered water stop device is lifted out of the hole through the drill rod.
The hydrogeological exploration layered water stop device is free from the influence of water pressure on the isolation of adjacent aquifers, the reliability of the hydrogeological exploration layered water stop device is improved, and the isolation in a borehole is realized by using the elasticity of the elastic ring 4 as a power source, so that the hydrogeological exploration layered water stop device is simple in structure and convenient to operate.
Further, at least two hydrogeological exploration layered water stopping devices are arranged on the drill rod, so that the water-proof performance is improved.
Embodiment two:
as shown in fig. 1-5 and 7, the present embodiment discloses a hydrogeological exploration layered water stop device, and the structure of the hydrogeological exploration layered water stop device is substantially the same as that of the first embodiment, and is different in that the connecting piece 5 of the present embodiment is an annular soft belt, the moving piece 11 is an annular ring, the annular ring is in sliding sealing fit with the periphery of the second pipe section 803, two ends of the annular soft belt are fixedly connected with the outer side of the annular ring and the outer edge of the elastic ring 4 respectively, and the pipe body 8, the annular ring, the annular soft belt and the elastic ring 4 form a closed cavity.
Further, the annular soft belt is made of waterproof cloth, soft plastic or soft rubber.
The working process and principle of the embodiment are as follows:
the annular soft belt avoids bentonite or sediment on the sliding path of the annular, avoids the bentonite or sediment from affecting the sliding of the annular along the second pipe section 803, and improves the reliability of the hydrogeological exploration layered water stop device.
Further, a water intake is provided on the second pipe section 803.
Embodiment III:
as shown in fig. 1-5, this embodiment discloses a layered water stop device for hydrogeological exploration, which has a structure substantially the same as that of the second embodiment, and is different in that an electromagnetic valve 6 communicating with a closed cavity is installed on an annular flexible belt of this embodiment, and the electromagnetic valve 6 is electrically connected with an external control switch group.
The electromagnetic valve 6 is a common electronic component in the prior art, and its working mode and structure are well known and will not be described herein.
The working process and principle of the embodiment are as follows:
The second electromagnetic lock 7 releases the moving part 11, and the outer edge of the elastic ring 4 drives the moving part 11 to move towards the trumpet-shaped pipe section 802 through the connecting piece 5, the volume change of the closed cavity hinders the outer edge of the elastic ring 4 to move towards the wall of a drilling hole, and a worker adjusts the volume of the closed cavity by controlling the opening degree or the opening time of the electromagnetic valve 6, so that the relative speed of the outer edge of the elastic ring 4 in contact with the wall of the hole is reduced, the risk that the outer edge of the elastic ring 4 is scratched by rocks of the wall of the hole is reduced, and the isolation effect of the hydrogeological exploration layered water stop device on adjacent aquifers is guaranteed.
Embodiment four:
As shown in fig. 1,2, 4 and 5, this embodiment discloses a hydrogeological exploration layered water stop device, the structure of which is substantially the same as that of the second embodiment or the third embodiment, except that two connecting pipes 1 communicating with a closed cavity are installed on a pipe body 8 of this embodiment.
Preferably, the salt solution includes, but is not limited to, sodium chloride solution, magnesium chloride solution, sodium sulfate solution, sodium carbonate solution.
The working process and principle of the embodiment are as follows:
after the water stopping operation, the salt solution which circularly flows is injected into the closed cavity through the two connecting pipes 1, the temperature of the salt solution is lower than-5 ℃, water between the annular soft belt and the hole wall is frozen, water in the crack of the hole wall corresponding to the position of the annular soft belt is frozen, and the isolation effect on the adjacent aquifer is improved.
Fifth embodiment:
As shown in fig. 7, this embodiment discloses a hydrogeological exploration layered water stop device, which has substantially the same structure as that of the fourth embodiment, except that a plurality of concave grooves are provided on the inner peripheral side of the elastic ring 4 of this embodiment.
When the elastic ring 4 is sleeved on the outer peripheral side of the trumpet-shaped pipe section 802, the concave groove of the elastic ring 4 is filled with water.
The working process and principle of the embodiment are as follows:
The staff injects the salt solution of circulation flow into the closed cavity through outside liquid pump and two connecting pipes 1, and the temperature of salt solution is less than-5 ℃, and the heat of recess inslot water is transmitted to salt solution through tubaeform pipe section 802, and the recess inslot water freezes, and elastic ring 4 corresponds the position of freezing and is jacked.
Before lifting the pipe, the worker releases the elastic ring 4 from the first electromagnetic lock 3, the elastic piece 10 pushes the elastic ring 4 to move towards the direction where the second pipe section 803 is located, the elastic ring 4 extrudes ice at the concave groove, the ice at the concave groove melts in the sliding process, and the resistance of the elastic ring 4 in the sliding process along the trumpet-shaped pipe section 802 is reduced.
Further, the pipe body 8 is made of metal.
Example six:
As shown in fig. 2,4 and 5, the present embodiment discloses a hydrogeological exploration layered water stop device, and the structure of the hydrogeological exploration layered water stop device is substantially the same as that of the third embodiment, except that an electric shock gas generator 12 is disposed in the closed cavity of the present embodiment, and the electric shock gas generator 12 is electrically connected with an external control switch group.
Preferably, the electric shock gas generator 12 is a component common in automotive airbags in the prior art.
The working process and principle of the embodiment are as follows:
Before lifting the pipe, the worker releases the elastic ring 4 by the first electromagnetic lock 3, the worker electrifies the electric shock gas generator 12 to generate gas, the pressure in the closed cavity is rapidly increased, and the annular soft belt bulges outwards to apply force to the second pipe section 803 by the elastic ring 4.
The acting force of the elastic member 10 on the elastic ring 4 and the acting force of the gas in the closed cavity on the elastic ring 4 overcome the static friction force of the elastic ring 4 and the trumpet-shaped pipe section 802, so that the elastic ring 4 slides along the peripheral side of the trumpet-shaped pipe section 802, and the elastic ring 4 is convenient to separate from the hole wall.
Then the staff controls the electromagnetic valve 6 to open so as to discharge the gas in the closed cavity.
Embodiment seven:
As shown in fig. 1,2, 4 and 5, the present embodiment discloses a hydrogeological exploration layered water stop device, and the structure is substantially the same as that of the first embodiment, except that the number of elastic members 10 in the present embodiment is not less than two, and the elastic members 10 are distributed around the first pipe section 801 at equal angles, and the elastic members 10 make the stress of the elastic ring 4 uniform.
Example eight:
As shown in fig. 6, this embodiment discloses a layered water stop device for hydrogeological exploration, the structure of which is substantially the same as that of the first embodiment, and is different in that the elastic member 10 of this embodiment includes a closed casing 102, a sliding block 103 that slides in a sealing manner is installed in an inner cavity of the casing 102, one side of the sliding block 103 is fixedly connected with one end of a sliding rod 101, the other end of the sliding rod 101 penetrates through and extends to an outer side of the casing 102, a spring 104 is provided at a position of the sliding block 103 away from the sliding rod 101, the inner cavity of the casing 102 is divided into a first cavity and a second cavity by the sliding block 103, a communication hole that communicates the first cavity and the second cavity is provided on the sliding block 103, and the casing 102 is filled with liquid.
In the sliding process of the inner cavity of the shell 102, the sliding block 103 allows the liquid in the shell 102 to flow through the communicating hole, so that stone chips or bentonite in the drilled holes are prevented from affecting the deformation of the elastic piece 10.
Example nine:
as shown in fig. 1,2, 4 and 5, the present embodiment discloses a layered water stop device for hydrogeological exploration, which has a structure substantially the same as that of the first embodiment, and is different in that the present embodiment further includes a splice pipe 9, one end of the splice pipe 9 is detachably connected to one end of the second pipe section 803, which is far from the trumpet-shaped pipe section 802, and the other end of the splice pipe 9 is detachably connected to one end of the first pipe section 801, which is far from the trumpet-shaped pipe section 802.
The splicing pipe 9 facilitates the assembly of a plurality of local hydrogeological exploration layered water stop devices.
Example ten:
As shown in fig. 1,2, 4 and 5, the present embodiment discloses a hydrogeological exploration layered water stop device, and the structure thereof is substantially the same as that of the first embodiment, except that a ferrule 2 is fixed on the outer peripheral side of the first pipe section 801 of the present embodiment, and the ferrule 2 prevents the first electromagnetic lock 3 or the elastic member 10 from colliding with the wall of the borehole, so as to improve the reliability of the hydrogeological exploration layered water stop device.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and principles of the present invention.
Claims (10)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208605179U (en) * | 2018-07-25 | 2019-03-15 | 湖北煤炭地质物探测量队 | The water-stop and antipriming that draw water are layered for Geology Drilling |
| CN212690023U (en) * | 2020-04-09 | 2021-03-12 | 赵安东 | Hydrology and geology exploration layering sealing up device |
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| US6131441A (en) * | 1996-12-02 | 2000-10-17 | Berube; Guy | Apparatus and method for isolating or testing a pipe segment |
| CN209494560U (en) * | 2018-12-25 | 2019-10-15 | 广东省地质建设工程勘察院 | A water stop device for pumping test in hydrogeological exploration |
| CN211950432U (en) * | 2020-04-09 | 2020-11-17 | 王立兵 | Water stopping device for hydrogeological exploration water pumping test |
| CN114086906B (en) * | 2021-12-13 | 2024-02-09 | 山东省地质测绘院 | Multilayer aquifer layering water stop structure in hydrogeology test |
| CN217421097U (en) * | 2022-04-02 | 2022-09-13 | 张健 | Water stopping device for water pumping of hydrogeological exploration drilling |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208605179U (en) * | 2018-07-25 | 2019-03-15 | 湖北煤炭地质物探测量队 | The water-stop and antipriming that draw water are layered for Geology Drilling |
| CN212690023U (en) * | 2020-04-09 | 2021-03-12 | 赵安东 | Hydrology and geology exploration layering sealing up device |
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