CN204989151U - Experimental device for simulation geothermol power tail water recharges chemistry and blocks up - Google Patents
Experimental device for simulation geothermol power tail water recharges chemistry and blocks up Download PDFInfo
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- CN204989151U CN204989151U CN201520785813.6U CN201520785813U CN204989151U CN 204989151 U CN204989151 U CN 204989151U CN 201520785813 U CN201520785813 U CN 201520785813U CN 204989151 U CN204989151 U CN 204989151U
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Abstract
The utility model discloses an experimental device for simulation geothermol power tail water recharges chemistry and blocks up, including the reagent bottle, the trace pump, the intermediate receptacle, a filte, the rock core holder, graduated flask and force (forcing) pump, the reagent bottle communicates with the water inlet of micro - pump, the delivery port of trace pump passes through the pipeline and is connected with the water inlet of intermediate receptacle, the delivery port of intermediate receptacle is connected with the water inlet of filter, the delivery port of filter is connected to the heater, the one end of rock core holder is connected to the delivery port of heater, the other end of rock core holder is connected to the graduated flask, the rock core holder is connected with and is used for the pressor force (forcing) pump of rock core holder, pipeline between heater and the rock core holder is equipped with first valve, pipeline between rock core holder and the graduated flask is equipped with the second valve, pipeline between rock core holder and the force (forcing) pump is equipped with the third valve. The utility model discloses can quantitative simulation analysis geothermol power tail water recharge the chemistry and block up, can also confirm to arouse the mineral of jam, it is simple reliable, appearing nature is strong.
Description
Technical field
The utility model relates to deep geothermal heat tail water and recharges electroless Ni-P-C-O plating field, particularly a kind ofly simulates the experimental provision that geothermal tail water recharges electroless Ni-P-C-O plating.
Background technology
GEOTHERMAL WATER can be widely used in the aspects such as heating, health care, industry, agricultural greenhouse plantation.The exploitation of terrestrial heat resources, to alleviation Pressure on Energy, Optimization of Energy Structure, environmental protect, has very outstanding meaning.In the exploitation of terrestrial heat resources, there are some problems at present, such as in line geothermal tail water can cause environmental pollution, and large area exploitation there will be underground heat water level decreasing, and threatens the ecologic equilibrium.Underground heat is valuable comprehensive mineral resources, has the features such as function is many, purposes is wide, pollution-free, renewable, and transforming the mode of development, Optimization of Energy Structure, propelling pollution treatment fall in haze etc. and play more and more important effect.
It is the measure that a kind of invariably thermal wastewater directly discharges thermal pollution and the chemical contamination caused that geothermal tail water recharges that especially deep geothermal heat tail water recharges, and to maintaining heat storage pressure, ensure that the Mining technology condition of geothermal field has important work but blocking of recharge well is but most of geothermal tail water that recharge all can produced problem.The generation of blocking can cause the reduction of inverted well surrounding aqueous layer perviousness, conveyance power of water weakens, and show as when the amount of recharging remains unchanged, inverted well water level continues to raise, and there occurs excessive well phenomenon when inverted well water level exceedes well.And wherein of paramount importance one blocking during electroless Ni-P-C-O plating.So-called electroless Ni-P-C-O plating refers to that heat storage mineral matter changes because of temperature and pressure, and cause the process of mineral deposits fouling to be called electroless Ni-P-C-O plating, the complicated mechanism of electroless Ni-P-C-O plating, its influence factor is numerous, the time span that electroless Ni-P-C-O plating develops is comparatively large, because affecting by the speed of mineral facies dissolving, settling velocity, theoretically evolutionary process will from course of reaction when recharge water enters water-bearing zone just can, but reach the equilibrium state of long response time, then course of reaction may continue tens thousand of year.But also do not have now effective method solve geothermal tail water recharge especially deep geothermal heat tail water recharge in electroless Ni-P-C-O plating problem.
Summary of the invention
The purpose of this utility model is the electroless Ni-P-C-O plating problem in will recharging to solve deep geothermal heat tail water, provides a kind of and simulates the experimental provision that geothermal tail water recharges electroless Ni-P-C-O plating.
For achieving the above object, the utility model is implemented according to following technical scheme:
A kind ofly simulate the experimental provision that geothermal tail water recharges electroless Ni-P-C-O plating, comprise the reagent bottle that the former water water sample of the heat reservori processed after filtration is housed, micro pump, intermediate receptacle, filtrator, be clamped with the core holding unit of rock core, graduated cylinder and force (forcing) pump, described reagent bottle is closed structure, the water inlet of reagent bottle and micro pump passes through pipeline communication, the water delivering orifice of micro pump is connected with the water inlet of intermediate receptacle by pipeline, the water delivering orifice of intermediate receptacle is connected by the water inlet of pipe-and-filter, the water delivering orifice of filtrator is connected to well heater, the water delivering orifice of well heater connects one end of core holding unit by pipeline, the other end of core holding unit is connected to graduated cylinder by pipeline, described core holding unit is connected with the force (forcing) pump for pressurizeing to core holding unit by pipeline, pipeline between described well heater and core holding unit is provided with the first valve, pipeline between core holding unit and graduated cylinder is provided with the second valve, pipeline between core holding unit and force (forcing) pump is provided with the 3rd valve.
Further, in order to increase pressure in whole device system, described intermediate receptacle is the perpendicular cylindrical shell put.
Preferably, for the sake of security, described well heater is provided with the first pressure gauge.
More preferably, carry out displacement test for the ease of controlling the pressure of force (forcing) pump to core holding unit, the pipeline between described core holding unit and force (forcing) pump is provided with the second pressure gauge.
Principle of work of the present utility model: concrete principle steps is infused in by tail water constant or different to recharge being filled with by actual heat storage former water saturated heat storage core holding unit under degree of depth heat-storage model and pressure Ti, Pi, and the original permeability K of the saturated original rock core of measurement and calculation
0; After flowing displacement time t, calculate and analyze core permeability K, plugging rate (K
0-K)/K
0and change of water quality before and after displacement flowing, store up mineral dissolution by contrast by heat and precipitate under the blocking prerequisite formed plugging rate and change of water quality before and after water filling, observe being described in different heat and storing up and cause chocking-up degree and deposit thereof by heat storage mineral dissolution precipitation factor under environment and this result and front two chemical simulation processes mutually verified.
Compared with prior art, the utility model can be analyzed geothermal tail water and recharge electroless Ni-P-C-O plating by quantitative simulation, and can also determine the mineral causing blocking, can determine that de-plugging increases and fill with, simple and reliable, showing property is strong, is convenient to apply in Practical Project.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the precipitation capacity change curve added under the utility model laboratory condition before and after antisludging agent under different proportion;
Fig. 3 is that Xianyang is recharged No. two wells and recharged in scene the SEA LEVEL VARIATION curve after adding variable concentrations antisludging agent.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, is used for explaining the utility model in the illustrative examples of this utility model and explanation, but not as to restriction of the present utility model.
As shown in Figure 1 a kind of simulates the experimental provision that geothermal tail water recharges electroless Ni-P-C-O plating, comprise the reagent bottle 1 that the former water water sample of the heat reservori processed after filtration is housed, micro pump 2, intermediate receptacle 3, filtrator 4, be clamped with the core holding unit 6 of rock core, graduated cylinder 8 and force (forcing) pump 9, described reagent bottle 1 is closed structure, reagent bottle 1 passes through pipeline communication with the water inlet of micro pump 2, the water delivering orifice of micro pump 2 is connected by the water inlet of pipeline with intermediate receptacle 3, the water delivering orifice of intermediate receptacle 3 is connected by the water inlet of pipe-and-filter 4, the water delivering orifice of filtrator 4 is connected to well heater 10, the water delivering orifice of well heater 10 connects one end of core holding unit 6 by pipeline, the other end of core holding unit 6 is connected to graduated cylinder 8 by pipeline, described core holding unit 6 is connected with the force (forcing) pump 9 for pressurizeing to core holding unit 6 by pipeline, intermediate receptacle 3 is the perpendicular cylindrical shell put, well heater 10 is provided with the first pressure gauge 5, pipeline between core holding unit 6 and force (forcing) pump 9 is provided with the second pressure gauge 7, pipeline between described well heater 10 and core holding unit 6 is provided with the first valve 11, pipeline between core holding unit 6 and graduated cylinder 8 is provided with the second valve 12, pipeline between core holding unit 6 and force (forcing) pump 9 is provided with the 3rd valve 13.
Tentatively draft cause Xianyang recharge No. two well tail water recharge blocking sediment may for carbonate mineral and aluminum silicate mineral mineral, in order to all kinds of influence factors causing stifled mineral that further proof theory is simulated, the electroless Ni-P-C-O plating factor that research Xianyang causes the amount of recharging to decline under recharging No. two well heat storage environment, carry out indoor electroless Ni-P-C-O plating simulated experiment, use this device to carry out the diagnostic method concrete steps of electroless Ni-P-C-O plating as follows:
Step 1: first to rock core hole, ooze parameter and demarcate;
Step 2: again original permeability K is surveyed to heat reservori former water water sample (the former water water sample of heat reservori is through filter 4 filtration treatment)
o;
Step 3: recharge the displacement of No. two well tail water with the Xianyang after fine filter filtration respectively at 30 DEG C, 50 DEG C, 70 DEG C three temperature and stop when the former water saturated rock core of heat reservori is little to permeability variation, survey permeability K
1; The rock core displacement test carried out at 30 DEG C, 50 DEG C, 70 DEG C three temperature, core plugging rate is respectively 12.5%, 44.9%, 15.3%, and (permeability refers to the size of rock permeability, under the condition of certain pressure reduction, the ability um that rock allows fluid to pass through
2);
Step 4: survey final permeability K with the former water of heat reservori
d, obtain core plugging rate C=(K
o-K
d)/K
o, its size represents the core plugging rate when only there being electroless Ni-P-C-O plating;
It is as follows that what it was concrete realize result:
30 DEG C of experimental results
30 DEG C of rock core displacement test results are as shown in table 1, the original permeability K of rock core
030 DEG C=4.285 × 10
-3μm
2, after with tail water displacement 39PV, the permeability of rock core is K
1(tail water)=3.751 × 10
-3μm
2, now survey core permeability K with heat reservori water
d=3.748 × 10
-3μm
2, it is 12.5% that essence filters tail water 30 DEG C of displacement core plugging rates.
A table 130 DEG C electroless Ni-P-C-O plating sample well oozes test result
50 DEG C of experimental results
50 DEG C of rock core displacement test results are as shown in table 2, the original permeability K of rock core
050 DEG C=7.542 × 10
-3μm
2, after being about 20PV with tail water displacement, the permeability of rock core is K
1(tail water)=6.536 × 10
-3μm
2, now survey core permeability K with local water
d=6.469 × 10
-3μm
2, filtering tail water 50 DEG C of displacements is 14.2% to core plugging rate.
A table 250 DEG C electroless Ni-P-C-O plating sample well oozes test result
70 DEG C of experimental results
70 DEG C of rock core displacement test results are as shown in table 3, the original permeability K of rock core
070 DEG C=0.0678 × 10
-3μm
2, after being about 70PV with tail water displacement, the permeability of rock core is K
1(tail water)=0.0596 × 10
-3μm
2, now survey core permeability K with local water
d=0.0573 × 10
-3μm
2, filtering tail water 70 DEG C of displacements is 15.3% to core plugging rate.
A table 370 DEG C electroless Ni-P-C-O plating sample well oozes test result
The rock core displacement test carried out at 30 DEG C in sum, 50 DEG C, 70 DEG C three temperature, core plugging rate is respectively 12.5%, 44.9%, 15.3%, as shown in table 4, shows the rising along with temperature, and electroless Ni-P-C-O plating degree increases.In conjunction with Hydrogeochemical Simulation and laboratory core displacement test result known, Xianyang is recharged No. two well tail water electroless Ni-P-C-O plating and is mainly the silicate scale such as carbonate scale and calcedony.
Table 4 electroless Ni-P-C-O plating simulated experiment result
Antisludging agent experimental result
According to the result that above Hydrogeochemical Simulation and simulating lab test draw, Xianyang is recharged No. two well tail water and is recharged scale forming matter and be mainly carbonate and silicates, easy blocking pipe or heat reservori, have a strong impact on tail water to recharge, so, select a kind of not only environmental protection, but also have good scale inhibitor poly epoxy succinate that is anti-, descale effect to carry out antisludging agent experiment to calcium carbonate, and scale inhibitor poly epoxy succinate once in Xi'an geothermal tail water experimental simulation and scene recharge scale inhibition effect good.
Fig. 2 is the precipitation capacity change curve added under above-mentioned laboratory condition before and after polyepoxysuccinic acid salt antisludging agent under different proportion, antisludging agent experimental result shows, do not adding in antisludging agent situation, when former water and tail water 2:8, precipitation capacity reaches maximum, after adding polyepoxysuccinic acid salt antisludging agent, total precipitation capacity obviously reduces, 36.28mg/L is reduced to by the 64.18mg/L of original maximum, slow resistance rate is 43.5%, former water and tail water mix ratio are after 4:6, sediment is close to and disappears, and reaches good scale inhibition effect.
By this antisludging agent can be joined again after this experiment Xianyang recharge No. two well tail water scenes carry out use test.Fig. 3 is that Xianyang is recharged after No. two well tail water recharge in scene and add variable concentrations scale inhibitor poly epoxy succinate, SEA LEVEL VARIATION curve.Before experimental result display does not add antisludging agent, dynamic water level is because blocking near surface, and when adding the polyepoxysuccinic acid salt of 33ml/m3 concentration after 8 hours, water level decreasing 0.3m, when the concentration adding antisludging agent is increased to 67ml/m
3time, water level decreasing 0.5m after 8 hours, and have continuation downward trend, illustrate that this antisludging agent is with strong points, scale effect is good, recharges in practice according to electroless Ni-P-C-O plating degree and financial position, can determine that antisludging agent the best throws in concentration from now on.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. simulate the experimental provision that geothermal tail water recharges electroless Ni-P-C-O plating for one kind, it is characterized in that, comprise the reagent bottle (1) that the former water water sample of the heat reservori processed after filtration is housed, micro pump (2), intermediate receptacle (3), filtrator (4), be clamped with the core holding unit (6) of rock core, graduated cylinder (8) and force (forcing) pump (9), described reagent bottle (1) is closed structure, reagent bottle (1) passes through pipeline communication with the water inlet of micro pump (2), the water delivering orifice of micro pump (2) is connected by the water inlet of pipeline with intermediate receptacle (3), the water delivering orifice of intermediate receptacle (3) is connected by the water inlet of pipe-and-filter (4), the water delivering orifice of filtrator (4) is connected to well heater (10), the water delivering orifice of well heater (10) connects one end of core holding unit (6) by pipeline, the other end of core holding unit (6) is connected to graduated cylinder (8) by pipeline, described core holding unit (6) is connected with the force (forcing) pump (9) for pressurizeing to core holding unit (6) by pipeline, pipeline between described well heater (10) and core holding unit (6) is provided with the first valve (11), pipeline between core holding unit (6) and graduated cylinder (8) is provided with the second valve (12), pipeline between core holding unit (6) and force (forcing) pump (9) is provided with the 3rd valve (13).
2. simulation geothermal tail water according to claim 1 recharges the experimental provision of electroless Ni-P-C-O plating, it is characterized in that: described intermediate receptacle (3) is the perpendicular cylindrical shell put.
3. simulation geothermal tail water according to claim 1 recharges the experimental provision of electroless Ni-P-C-O plating, it is characterized in that: described well heater (10) is provided with the first pressure gauge (5).
4. simulation geothermal tail water according to claim 1 recharges the experimental provision of electroless Ni-P-C-O plating, it is characterized in that: the pipeline between described core holding unit (6) and force (forcing) pump (9) is provided with the second pressure gauge (7).
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| CN106568726A (en) * | 2016-11-09 | 2017-04-19 | 北京师范大学 | Research system on riverside pumping chemical blocking phenomenon |
| CN106596368A (en) * | 2016-11-09 | 2017-04-26 | 北京师范大学 | Application method of research system of riverside pumping chemical obstruction phenomenon |
| CN108520101A (en) * | 2018-03-13 | 2018-09-11 | 中国科学院广州能源研究所 | Geothermal well well casing scaling prediction method |
| 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 |
| CN109326165A (en) * | 2018-11-01 | 2019-02-12 | 中国石油大学(华东) | Recharge simulator |
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| CN113216944A (en) * | 2021-04-27 | 2021-08-06 | 中国地质科学院水文地质环境地质研究所 | Device and method for researching influence factors of deep bed rock recharge |
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- 2015-10-10 CN CN201520785813.6U patent/CN204989151U/en not_active Expired - Fee Related
Cited By (13)
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| CN106568726B (en) * | 2016-11-09 | 2019-07-09 | 北京师范大学 | A kind of research system of by-pass rivers electroless Ni-P-C-O plating phenomenon |
| CN106596368A (en) * | 2016-11-09 | 2017-04-26 | 北京师范大学 | Application method of research system of riverside pumping chemical obstruction phenomenon |
| CN106568726A (en) * | 2016-11-09 | 2017-04-19 | 北京师范大学 | Research system on riverside pumping chemical blocking phenomenon |
| CN108520101A (en) * | 2018-03-13 | 2018-09-11 | 中国科学院广州能源研究所 | Geothermal well well casing scaling prediction method |
| CN108520101B (en) * | 2018-03-13 | 2021-11-16 | 中国科学院广州能源研究所 | Method for predicting scaling of geothermal well pipe |
| 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 |
| CN109064864B (en) * | 2018-08-01 | 2024-05-24 | 中国华能集团有限公司 | Device for simulating recharging path of geothermal tail water and application method of device |
| CN109326165B (en) * | 2018-11-01 | 2021-05-18 | 中国石油大学(华东) | Recharge simulator |
| CN109326165A (en) * | 2018-11-01 | 2019-02-12 | 中国石油大学(华东) | Recharge simulator |
| CN113203844A (en) * | 2021-04-13 | 2021-08-03 | 合肥工业大学 | Water source heat pump recharging process chemical blockage verification test device |
| CN113203844B (en) * | 2021-04-13 | 2022-02-25 | 合肥工业大学 | Water source heat pump recharging process chemical blockage verification test device |
| CN113216944A (en) * | 2021-04-27 | 2021-08-06 | 中国地质科学院水文地质环境地质研究所 | Device and method for researching influence factors of deep bed rock recharge |
| CN114575836A (en) * | 2022-01-27 | 2022-06-03 | 陕西煤田地质勘查研究院有限公司 | Method for improving mining and irrigating efficiency of hydrothermal geothermal well group |
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