CN209729264U - A kind of device for simulating geothermal tail water recharge path - Google Patents
A kind of device for simulating geothermal tail water recharge path Download PDFInfo
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- CN209729264U CN209729264U CN201821226275.7U CN201821226275U CN209729264U CN 209729264 U CN209729264 U CN 209729264U CN 201821226275 U CN201821226275 U CN 201821226275U CN 209729264 U CN209729264 U CN 209729264U
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Abstract
A kind of simulation geothermal tail water backflow device, pass through the first valve respectively including the water injection tank equipped with clear water and the water injection tank equipped with coloring liquid, second valve connects the first of threeway conduit, second interface, the third interface of threeway conduit connects surge chamber, pump entrance, first mass flowmenter entrance, water-injection steel pipe, water-injection steel pipe passes through pressurizer side bottom plate, the pressurizer other side passes through water intaking steel pipe, steel pipe of fetching water passes through conduit the second mass flowmenter of connection, water intaking is pumped into, water intaking pump discharge is connected by conduit connection with the drainpipe of the 4th valve, drainpipe protrudes into inside beaker；Pressurizer is placed on inside simulating chamber, and the lower section of pressurizer is laid with suprasil pearl layer；Multiple rigid transparent nets are laid in suprasil pearl layer；In use, observation coloring liquid is simulating indoor transport conditions, the recharge path of geothermal tail water is simulated；The utility model has the advantages of geothermal tail water migration process being simulated in small range scale, the recharge path of indirect predictions geothermal tail water.
Description
Technical field
The utility model relates to geothermal exploration development technique field, in particular to a kind of simulation geothermal tail water recharge path
Device.
Background technique
Geothermal energy resources are the clean reproducible energies that a kind of reserves are big, high-efficient, stability is good, for energy-saving and emission-reduction, are answered
It is of great significance to global warming, improvement haze.However, continually developing with geothermal energy resources, have there is ground in some areas
The trend that lower water level is decreased obviously, has seriously affected the supply bond of local water resource, constrains further opening for hydrothermal resources
It adopts.In order to promote can be recycled for geothermal energy resources, geothermal tail water recharge work has been carried out in drug in some provinces, and is restoring underground
Positive, significant effect is played in terms of water level.
However, dust trajectory after tail water injection in underground is difficult to directly observe since subsurface sedimentary structural environment is complicated
With prediction, the reasonability and accuracy of design geothermal reinjection well early period are seriously constrained.At present be primarily present geothermal tail water tracer,
Several means such as numerical simulation predict tail water recharge.Geothermal tail water tracer means are mainly by injecting one to inverted well
Quantitative tracer, and by the way that geothermal well is sampled detection to around in some cycles, to achieve the purpose that recharge is predicted.
But tail water tracer means need to be established on the basis of having bored inverted well, and later stage evaluation is only belonged on stricti jurise；Tail water simultaneously
The tracer period usually up to the several months even the several years, cannot timely and effectively for next step inverted well design data supporting be provided.Benefit
Underground fluid dust trajectory can also be predicted with numerical simulation means, but parameters for numerical simulation setting by man's activity compared with
Greatly, and real fluid migration characteristics and theory of mechanics are there is also significant difference, therefore prediction result and actual conditions often gap
It is larger.
Due to subsurface geology complicated condition, suitable laboratory installation is not yet formed to practical geologic setting, underground water
Distribution is effectively simulated with Geothermal Characteristics, needless to say to the reasonable prediction in geothermal tail water recharge path.Although a small number of scholars
The primary prospect of experimental simulation device is had proposed, but not yet forms actual simulation system, is also not described in detail specific device
Combination.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of simulation geothermal tail waters to return
The device in path is filled, indoor transport conditions can simulated by observing and recording coloring liquid, to reach simulation geothermal tail water
The purpose in recharge path.
In order to achieve the above object, the technical solution of the present invention is:
A kind of simulation geothermal tail water backflow device, the water injection tank 5 including being equipped with the water injection tank 1 of clear water and equipped with coloring liquid,
Water injection tank 1 equipped with clear water and the water injection tank equipped with coloring liquid 5 connect threeway conduit by the first valve 3, the second valve 7 respectively
8 the first, second interface, the third interface of threeway conduit 8 connect 9 water inlet end of surge chamber, and 9 water outlet of surge chamber passes through with the
The conduit of three valves 11 connects 13 entrance of water injecting pump, and the outlet of water injecting pump 13 connects 15 entrance of the first mass flowmenter by conduit,
The outlet of mass flowmenter 15 connects water-injection steel pipe 18 by conduit, and water-injection steel pipe 18 passes through 34 side bottom plate of pressurizer, pressurization
34 other side of device passes through water intaking steel pipe 23；Water-injection steel pipe 18 and water intaking steel pipe 23 are symmetrically arranged at the left and right of pressurizer 34
Two sides, water-injection steel pipe 18 and water intaking steel pipe 23 are extend into 24 laid inside suprasil pearl layer 20 of simulating chamber；Water intaking steel pipe 23
The import of the second mass flowmenter 27 is connected by conduit, the outlet of the second mass flowmenter 27 connects water pump 29 by conduit
Entrance, the outlet of water pump 29 are connected by conduit connection with the drainpipe 32 of the 4th valve 31, and drainpipe 32 protrudes into beaker 33
It is internal；Pressurizer 34 is placed on inside simulating chamber 24, and the lower section of pressurizer 34 is laid with suprasil pearl layer 20；Suprasil pearl
Multiple rigid transparent nets 21 are laid in layer 20.
Further, the water injection tank 1 equipped with clear water and the water injection tank 5 equipped with coloring liquid are distinguished external first and are surveyed
The range of temperature meter 2 and the second thermo detector 6, first thermo detector 2 and the second thermo detector 6 is 0-100 DEG C, and measurement accuracy is
1℃。
Further, the 34 external dynamometer 35 in top of pressurizer.
Further, the flow rate test range of first mass flowmenter 15 and the second mass flowmenter 27 is 0-
1000ml/min, pressure-resistant 1.0MPa.
Further, the water injecting pump 13 and water pump 29 provide water filling/water intaking power within the scope of 0-1.0MPa, adjust
Section precision is 0.01MPa.
Further, 21 compressive resistance of rigid transparent net is 1.0MPa, and is not sent out under 1.0MPa pressure condition
Raw obvious rupture and deformation.
Further, in the described suprasil pearl layer 20 diameter of bright quartz ball be respectively from the bottom to top 1mm, 2mm,
5mm, 10mm and 20mm, compressive resistance 1.0MPa.
Further, camera device 36 is placed in 24 front of simulating chamber.
Further, the tube bottom of the water-injection steel pipe 18 and water intaking steel pipe 23 covers with plastic filter screen respectively.
The beneficial effects of the utility model are:
(1) it is capable of providing a kind of device in laboratory simulation geothermal tail water recharge path, is the design and construction of inverted well
Reliable laboratory data is provided.
(2) different deposition lithology combinations can be analyzed, condition is seeped in different holes, different fracture exhibitions using experiment simulation means
The influence to geothermal tail water recharge such as cloth situation.
(3) different recharges can be studied and take hot rate to underground heat by the size of adjusting water injecting pump and pump power of fetching water
The influence in tail water recharge path.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The embodiments of the present invention is described in detail below with reference to reference drawings and examples.
Referring to Fig.1, a kind of simulation geothermal tail water backflow device, including the water injection tank 1 equipped with clear water and equipped with coloring liquid
Water injection tank 5, the water injection tank 1 equipped with clear water and the water injection tank 5 equipped with coloring liquid distinguish external first thermo detector 2 and second
Thermo detector 6, the water injection tank 1 equipped with clear water and the water injection tank equipped with coloring liquid 5 are connected by the first valve 3, the second valve 7 respectively
The first, second interface of threeway conduit 8 is connect, the third interface of threeway conduit 8 connects 9 water inlet end of surge chamber, 9 water outlet of surge chamber
13 entrance of water injecting pump is connected by the conduit with third valve 11, the outlet of water injecting pump 13 connects the first mass flow by conduit
15 entrances are counted, the outlet of mass flowmenter 15 connects water-injection steel pipe 18 by conduit, and water-injection steel pipe 18 passes through 34 side of pressurizer
Bottom plate, 34 other side of pressurizer pass through water intaking steel pipe 23；Water-injection steel pipe 18 and water intaking steel pipe 23 are symmetrically arranged at pressurizer
34 left and right sides, water-injection steel pipe 18 and water intaking steel pipe 23 are extend into 24 laid inside suprasil pearl layer 20 of simulating chamber；It takes
Water steel pipe 23 connects the import of the second mass flowmenter 27 by conduit, and the outlet of the second mass flowmenter 27 is connected by conduit
29 entrance of water pump, the outlet of water pump 29 are connected by conduit connection with the drainpipe 32 of the 4th valve 31, and drainpipe 32 is stretched
Enter inside beaker 33；Pressurizer 34 is placed on inside simulating chamber 24, the 34 external dynamometer 35 in top of pressurizer, under pressurizer 34
Side is laid with suprasil pearl layer 20；Multiple rigid transparent nets 21 are laid in suprasil pearl layer 20；24 front of simulating chamber, which is placed, to be taken the photograph
Recording device 36.
Working principle of the utility model is:
In use, the water injection tank 1 equipped with clear water and 5 total capacity of water injection tank equipped with coloring liquid be at least respectively in 2L or more,
And guarantee there is enough clear water and coloring liquid for using.Water injection tank 1 and 5 heat insulating ability of water injection tank are good.First thermo detector 2 with
Second thermo detector, 6 range is 0-100 DEG C, and measurement accuracy is 1 DEG C.9 heat insulating ability of surge chamber is good.Water injecting pump 13 and water pump
29 can provide water filling/water intaking power within the scope of 0-1.0MPa, and water filling/water intaking power is adjustable, degree of regulation 0.01MPa.
First mass flowmenter 15 and 27 flow rate test range of the second mass flowmenter is 0-1000ml/min, pressure resistance
1.0MPa.1mm, 2mm, 5mm and 10mm different-diameter size is arranged according to simulation demand with water intaking steel pipe 23 in water-injection steel pipe 18,
And plastic filter screen is coverd at steel pipe bottom, prevent the suprasil pearl layer 20 during water filling/water intaking from falling in suction line.
Suprasil pearl 20 transparency of layer are good, clear view can be preferred in simulating chamber 24.Suprasil
1mm, 2mm, 5mm, 10mm and 20mm different-diameter size, compressive resistance 1.0MPa is arranged according to simulation demand in pearl.
21 compressive resistance of rigid transparent net is 1.0MPa, and does not occur obviously to rupture under 1.0MPa pressure condition
With deformation, according to simulation demand setting 5cm × 50cm, 10cm × 50cm, 20cm × 50cm, 30cm × 10cm, 40cm ×
The difference size such as 50cm, 50cm × 50cm is in case choose.
24 transparency of simulating chamber and heat insulating ability are good, do not occur in 0-100 DEG C of temperature range rupture with it is significant
Deformation, according to realistic simulation demand be arranged 20cm × 20cm × 20cm, 50cm × 50cm × 50cm and 100cm × 100cm ×
The difference size such as 100cm is for selection, and maximum pressure-bearing is respectively in 30kg, 500kg and 3000kg or more.
The drainpipe 32 protrudes into 33 bottom of beaker, prevents waste liquid from splashing out.
The pressurizer 34 compressive resistance under the conditions of 0-100 DEG C of temperature is 1.0MPa, and it is sealed between simulating chamber 24
Closing property is good.
35 range of dynamometer is 0-1.0MPa, measurement accuracy 0.01MPa.
The camera device 36 has automatic collection, saves data and clocking capability, front be placed in simulating chamber 24 it
Before, the migration process for coloring liquid in accurate surveying simulating chamber 24；Accuracy of timekeeping is 0.01s, timing range 0-24h.
All valves described in device, conduit, fixed valve leakproofness are good.
Practical geologic data is the basis for simulating geothermal tail water recharge path.Before running simulation device, research need to be collected
Area's formation lithology, rock stratum buried depth d and thickness t, rock porosity φ and permeability k, level of ground water height h, fracture spread
The geologic datas such as feature, fracture occurrence；Meanwhile main underground heat well drilling positions are also needed in collection plan simulation area to set, drilling depth
dw, bore diameter φw, recharge flow Qwo, water flow Qwi, temperature twAnd pressure PwEqual geothermal explorations parameter, and building ground accordingly
Hot geological model.
According to actual formation pressure PGround, apply vertical steady pressure, institute into simulating chamber 24 in proportion using pressurizer 34
Applying pressure size can be measured by dynamometer 35.
The first valve 3, third valve 11 and the 4th valve 31 are opened, the clear water after heating is passed through into thermo detector thermometric and is reached
To after estimating temperature, subsequent instrumentation is injected, starts water injecting pump 13 and water pump 29, and pump internally-powered is adjusted to low value, observation note
Enter whether clear water flows smooth, whether 35 registration of pressure gauge is stable normally in simulated formation 20, while observing simulating chamber 24, consolidating
Determine valve and whether other each junctions of simulator obvious leakage phenomenon occur.After simulator stable operation, gradually adjust
29 power of augmented injection water pump 13 and water pump, until the first mass flowmenter 15 and the second mass flowmenter 27 in data on flows and
Practical water filling/water draw rate after being scaled is consistent, and observes in simulator whether abnormal phenomenon occur at any time.To mould
In quasi- room 24 water level with convert in proportion after actual water level close to after consistent, close the first valve 3, start camera device 36.
After fresh residual water drains substantially in the third interface of threeway conduit 8,9 water inlet end of surge chamber, water injecting pump 13 and first flowmeter 15,
The second valve 7 is opened, keeps running power in water injecting pump 13 and water pump 29, observes migration of the coloring liquid in simulating chamber 24
Situation simulates the recharge path of geothermal tail water.
After simulating, the water injection tank 5 equipped with coloring liquid stops fluid injection, successively closes the second valve 7 and water injecting pump 13.
After liquid drains, stop water pump 29, closes third valve 11 and the 4th valve 31.Raffinate in beaker 33 is poured into special appearance
Device carries out subsequent processing, dismantles each instrument of simulator, and clean each component using clear water or detergent.Compile transparent stone
Ying Zhu, 21 instrument of rigid transparent net, in case next time uses.
Claims (9)
1. a kind of device for simulating geothermal tail water recharge path, which is characterized in that including the water injection tank (1) equipped with clear water and be equipped with
The water injection tank (5) of coloring liquid, the water injection tank (1) equipped with clear water and the water injection tank (5) equipped with coloring liquid pass through the first valve respectively
(3), the third interface of the first, second interface of the second valve (7) connection threeway conduit (8), threeway conduit (8) connects surge chamber
(9) water inlet end, surge chamber (9) water outlet connect water injecting pump (13) entrance, water injecting pump by the conduit with third valve (11)
(13) outlet connects the first mass flowmenter (15) entrance by conduit, and the outlet of mass flowmenter (15) is connected by conduit infuses
Water steel pipe (18), water-injection steel pipe (18) pass through pressurizer (34) side bottom plate, and pressurizer (34) other side passes through water intaking steel pipe
(23)；Water-injection steel pipe (18) and water intaking steel pipe (23) are symmetrically arranged at the left and right sides of pressurizer (34), water-injection steel pipe
(18) it is extend into simulating chamber (24) laid inside suprasil pearl layer (20) with water intaking steel pipe (23)；Water intaking steel pipe (23) passes through
Conduit connects the import of the second mass flowmenter (27), and the second mass flowmenter (27) outlet connects water pump (29) by conduit
Entrance, water pump (29) outlet are connected by conduit connection with the drainpipe (32) of the 4th valve (31), and drainpipe (32) is stretched
It is internal to enter beaker (33)；Pressurizer (34) is placed on simulating chamber (24) inside, and the lower section of pressurizer (34) is laid with suprasil pearl
Layer (20)；Multiple rigid transparent nets (21) are laid in suprasil pearl layer (20).
2. a kind of device for simulating geothermal tail water recharge path according to claim 1, which is characterized in that described is equipped with
The water injection tank (1) of clear water and water injection tank (5) equipped with coloring liquid external first thermo detector (2) and the second thermo detector (6) respectively, institute
The range of the first thermo detector (2) and the second thermo detector (6) stated is 0-100 DEG C, and measurement accuracy is 1 DEG C.
3. a kind of device for simulating geothermal tail water recharge path according to claim 1, which is characterized in that the pressurization
External dynamometer (35) at the top of device (34).
4. a kind of device for simulating geothermal tail water recharge path according to claim 1, which is characterized in that described first
The flow rate test range of mass flowmenter (15) and the second mass flowmenter (27) is 0-1000ml/min, pressure-resistant 1.0MPa.
5. a kind of device for simulating geothermal tail water recharge path according to claim 1, which is characterized in that the water filling
(13) and the water filling within the scope of water pump (29) offer 0-1.0MPa, water intaking power, degree of regulation 0.01MPa are provided.
6. a kind of device for simulating geothermal tail water recharge path according to claim 1, which is characterized in that the rigidity
Transparent network (21) compressive resistance is 1.0MPa, and does not occur obviously to rupture and deform under 1.0MPa pressure condition.
7. a kind of device for simulating geothermal tail water recharge path according to claim 1, which is characterized in that described is transparent
The diameter of bright quartz ball is respectively 1mm, 2mm, 5mm, 10mm and 20mm from the bottom to top in quartz ball layer (20), and compressive resistance is
1.0MPa。
8. a kind of device for simulating geothermal tail water recharge path according to claim 1, which is characterized in that the simulation
Place camera device (36) in room (24) front.
9. a kind of device for simulating geothermal tail water recharge path according to claim 1, which is characterized in that the water filling
Steel pipe (18) and the tube bottom of water intaking steel pipe (23) cover with plastic filter screen respectively.
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| CN201821226275.7U CN209729264U (en) | 2018-08-01 | 2018-08-01 | A kind of device for simulating geothermal tail water recharge path |
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| CN201821226275.7U CN209729264U (en) | 2018-08-01 | 2018-08-01 | A kind of device for simulating geothermal tail water recharge path |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109064864A (en) * | 2018-08-01 | 2018-12-21 | 中国华能集团有限公司 | A kind of device and its application method for simulating geothermal tail water recharge path |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109064864A (en) * | 2018-08-01 | 2018-12-21 | 中国华能集团有限公司 | A kind of device and its application method for simulating geothermal tail water recharge path |
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