CN111350501A - Geothermal well full-flow sampling system - Google Patents
Geothermal well full-flow sampling system Download PDFInfo
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- CN111350501A CN111350501A CN202010226511.0A CN202010226511A CN111350501A CN 111350501 A CN111350501 A CN 111350501A CN 202010226511 A CN202010226511 A CN 202010226511A CN 111350501 A CN111350501 A CN 111350501A
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- 239000002253 acid Substances 0.000 claims abstract description 52
- 238000001816 cooling Methods 0.000 claims abstract description 46
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 239000003463 adsorbent Substances 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
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- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
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- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a geothermal well full-flow sampling system, which comprises: a water-vapor separator; a cooling device; a condensing tank; and/or an acid gas removal unit; and the geothermal well full-flow sampling system is formed by connecting a fluid outlet of one device to a fluid inlet of another device and communicating the water-vapor separator, the cooling device, the condensing tank and/or the acid gas removing device through a PVC plastic pipe. The geothermal well full-flow sampling system provided by the invention realizes the collection of geothermal fluid samples of geothermal water, condensed water, non-condensed gas, acid component-removed gas and other series in the geothermal well of medium and high temperature aiming at the classification collection of the geothermal well fluid samples, has simple and safe operation process, and can efficiently finish the collection of the geothermal fluid samples suitable for various target components.
Description
Technical Field
The invention relates to the technical field of geochemistry, in particular to a geothermal well full-flow sampling system.
Background
The development and utilization of geothermal energy are of great significance to the realization of energy conservation and emission reduction and the adjustment of energy consumption structure. The heat source property, the heat storage temperature, the supply source, the water circulation time and other information reflected by the geothermal fluid are important bases for scientifically guiding the development and utilization of the geothermal energy. Therefore, the safe, efficient and convenient sampling device is used for collecting a complete geothermal fluid sample on the ground surface, and the loss of components and air pollution are reduced to the maximum extent, so that the method is the basis for obtaining reliable physical and chemical parameters of the geothermal fluid.
Fluid samples from geothermal recovery wells can be divided into water vapor, geothermal water, and non-condensable gases. The current method for collecting fluid samples in geothermal wells comprises the following steps: in the blowout process of the geothermal well, hot water is directly collected at the well mouth; a water-vapor separator is arranged to collect geothermal water and gas samples. However, the above method suffers from the following technical problems or drawbacks:
when the wellhead directly collects the fluid sample, the gas phase sample is greatly dissipated, and the collection difficulty is high. The fluid flow in the geothermal exploitation well is large, the temperature is high, the pressure is strong, and strong degassing occurs under the conditions of rapid temperature reduction and pressure reduction of the well mouth. The degassing action turns a large amount of hot water into water vapor with rapid loss of dissolved non-condensable gases in the water. When the natural open flow is carried out, only geothermal water with steam loss can be collected, and the higher the fluid temperature is, the larger the steam loss proportion is, and the fewer collected fluid samples are; the extraction of the solution gas is carried out on the geothermal water after the steam is dissipated, so that the obvious air pollution exists, and the data quality is seriously distorted. More importantly, the sampling personnel are in danger of scalding due to the strongly dissipated high-temperature steam;
when a gas and liquid sample is collected by installing a water-vapor separator, the technical problem of low separation efficiency of water vapor and non-condensed gas and the technical requirement of enriching non-acid gas components exist. Because the volume (5L-10L) of the sampling steam separator is small, the flow velocity of the fluid in the geothermal well is fast, and the separation efficiency in a limited space is very low: on one hand, the high-temperature fluid is still mostly in a gas phase, and very few geothermal water samples can be collected; on the other hand, water vapor in the gas phase fluid is discharged together with non-condensed gas through the gas outlet, and a large amount of condensed water can appear after the collected high-temperature gaseous sample is cooled to the ambient temperature, so that the accuracy of the gas sample test can be influenced by the high water content and the low gaseous sample amount. In addition, the rare gas, methane, hydrogen and other non-acidic gas components and isotopes thereof in the geothermal gas can indicate the regional heat source properties, the deep temperature, the geothermal water age and other information, and are important scientific bases for researching geothermal origin and evaluating geothermal resources. However, the gas components of the high-temperature geothermal system are mainly carbon dioxide, and the volume percentage content of the gas components is as high as 90%, so that the non-acid gas components cannot be tested due to the relatively low content of the non-acid gas components, or the testing precision and the accuracy are greatly reduced. In this case, it is necessary to achieve enrichment of the minor components by removing acidic components such as carbon dioxide on site.
Disclosure of Invention
Technical problem to be solved
The invention provides a geothermal well full-flow sampling system, which at least partially solves the technical problem.
(II) technical scheme
In order to achieve the above object, the technical solution of the present invention is to provide a geothermal well full-flow sampling system, including:
the water-vapor separator is provided with a first fluid inlet, a first fluid outlet and a baffle pipe communicated with the inner space and the outer space of the water-vapor separator, the first fluid inlet is higher than the first fluid outlet, the upper port of the baffle pipe positioned in the inner space of the water-vapor separator is higher than the first fluid inlet, and the lower port of the baffle pipe positioned in the outer space forms an air outlet;
a cooling device comprising a cooling coil and a cooling water tank, the cooling coil having a second fluid inlet and a second fluid outlet, and the cooling coil being fully immersed in the cooling water tank filled with cold water;
the condensation tank is provided with a third fluid inlet and a third fluid outlet, the third fluid inlet is a long pipe which is communicated to the inside of the condensation tank, the bottom or the side wall of the condensation tank is also provided with a ball valve outlet, and the ball valve outlet is lower than the third fluid outlet;
and/or the acid gas removal device comprises a fourth fluid inlet and a fourth fluid outlet, the fourth fluid inlet and the fourth fluid outlet are respectively arranged at two ends of the acid gas removal device, and the interior of the acid gas removal device is filled with the acid gas adsorbent; and a PVC plastic pipe is used for communicating the water-vapor separator, the cooling device, the condensing tank and/or the acid gas removing device through the connection mode that the fluid outlet of one device is connected to the fluid inlet of the other device, so that the geothermal well full-flow sampling system is formed.
Further, wherein:
in some embodiments, the top end of the water-vapor separator is also provided with a thermometer and a pressure gauge.
In some embodiments, the water-vapor separator is made of carbon steel or stainless steel.
In some embodiments, the cooling coil is made of red copper.
In some embodiments, the cooling water tank further has a water inlet and a water outlet.
In some embodiments, the material of the condensation tank is red copper, carbon steel or stainless steel.
In some embodiments, the distance from the bottom end of the long pipe to the bottom of the condensation tank is 1/3-1/5 of the height of the condensation tank.
In some embodiments, the acid gas removing device is made of transparent tempered glass.
In some embodiments, the cooling coil and/or acid gas removal device is one or more in series.
(III) advantageous effects
Compared with the prior art, the geothermal well full-flow sampling system provided by the invention has the following beneficial effects:
(1) the invention uses the copper cooling coil to be immersed in the water tank filled with cold water, and can improve the cooling efficiency of fluid by increasing the length of the cooling coil and adding ice to reduce the temperature of cooling water;
(2) the invention is provided with a ball valve on the bottom side wall of the copper (carbon steel or stainless steel) condensation tank, which is directly used for collecting condensed water samples. When the condensate volume in the condensate tank exceeds the volume 1/2, the condensate is drained through the sidewall ball valve. When the temperature of the fluid is too high, the temperature is reduced by rinsing the tank with cold water. The measures can ensure the separation efficiency of the condensed water and the non-condensed gas;
(3) the acid gas removing device is made of transparent toughened glass, and the discoloration progress of the adsorbent can be directly observed. In the initial sampling stage, the device is connected firstly, and if the gas quantity of a fluid outlet of the device is constant after a long time and the color change of the adsorbent is not obvious, the content of acid gas components such as carbon dioxide in non-condensed gas is low, and the device can be omitted according to the test requirement; if the color change is faster, the content of the acid gas component is higher, and a plurality of devices can be connected in series until the quality of the sample meets the test requirement;
(4) the device is safe to operate, simple to assemble and efficient to work, is suitable for geothermal exploitation wells in all temperature ranges, can safely, efficiently and conveniently collect samples which can practically reflect the physical and chemical properties of geothermal fluid, such as geothermal water, condensed water, non-condensed gas, gas enriched with non-acidic components and the like in the geothermal wells in a classified manner by connecting a plurality of devices in series, provides reliable initial data for the research of the hydrological geochemical process of the geothermal area, and further lays a theoretical foundation for the sustainable development and utilization of geothermal energy.
Drawings
FIG. 1 is a schematic structural view of a water-vapor separator according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a cooling coil according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a cooling water tank according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a configuration of a condensing tank according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an acid gas removal unit according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the connection of one embodiment of the present invention to an assembled geothermal well total flow sampling system;
FIG. 7 is a flow chart of a method of performing acquisition using a geothermal well full flow sampling system in accordance with an embodiment of the present invention.
In the figure:
water-steam separator 1
First fluid inlet 11 first fluid outlet 12 baffle 13
Second fluid inlet 21 and second fluid outlet 22
Acid gas removal device 5
Geothermal water sample a
Condensed Water sample b
Non-condensing gas sample c
Non-acidic component gas enriched sample d
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention aims to make up the defects of the prior art, provides a safe, efficient and convenient geothermal well full-flow sampling system for classifying and collecting geothermal fluid samples aiming at a geothermal well, and effectively realizes the classified collection of geothermal water, condensed water, non-condensed gas, gas enriched with non-acidic components and other samples. The collection system can be used for ensuring that the original components of the geothermal fluid are not lost to the greatest extent, and avoiding air pollution in the sampling process so as to obtain a sample capable of practically reflecting the physical and chemical properties of the geothermal fluid.
In view of the above, a first embodiment of the present invention discloses various components of a geothermal well full-flow sampling system, referring to fig. 1 to 5, including:
the water-vapor separator 1 is provided with a first fluid inlet 11, a first fluid outlet 12 and a baffle pipe 13 communicated with the inner space and the outer space of the water-vapor separator, wherein the first fluid inlet 11 is higher than the first fluid outlet 12, the upper port 131 of the baffle pipe in the inner space of the water-vapor separator is higher than the first fluid inlet 11, and the lower port 132 of the baffle pipe in the outer space forms an air outlet 14;
in some embodiments, the water vapor separator is made of carbon steel or stainless steel, and a thermometer 15 and a pressure gauge 16 are further installed on the top end of the water vapor separator 1.
In this embodiment, as shown in fig. 1, the water-vapor separator 1 needs to have the characteristics of convenient transportation and convenient loading and unloading, the volume is preferably about 10L, and the material is high-temperature and high-pressure resistant carbon steel or stainless steel. In order to facilitate the control of the flow rate of the fluid flowing into the water-steam separator and to adjust its work load for optimum separation efficiency, the water inlet of the water-steam separator, i.e. said first fluid inlet 11, is provided with a ball valve; similarly, in order to meet the requirements of different sample storage methods on the collection flow and pressure, the water outlet (i.e. the first fluid outlet 12) and the air outlet 14 of the water-vapor separator are also regulated by ball valves. Preferably, the top of the water-vapor separator shown in this embodiment is further provided with a thermometer 15 and a pressure gauge 16 for real-time monitoring of temperature and pressure conditions during the separation of the gas-liquid two-phase fluid, so as to calculate enthalpy change and heat energy loss during the phase change of the fluid.
It should be noted that the structure of the water-vapor separator 1 is preferably the structure shown in fig. 1, but not limited to the structure shown in fig. 1, and in other embodiments, it is sufficient if the positional relationship of the respective inlet and outlet (the fluid inlet 11, the fluid outlet 12, the upper port 131, and the air outlet 14) satisfies the condition defined in the claims.
A cooling device comprising a cooling coil 2 and a cooling water tank 3, the cooling coil 2 having a second fluid inlet 21 and a second fluid outlet 22, and the cooling coil 3 being completely immersed in the cooling water tank 3 filled with cold water;
in some embodiments, the material of the cooling coil 2 is red copper, and the cooling coils 2 are one or more in series.
In the embodiment, as shown in fig. 2, the length of the copper pipe for preparing the cooling coil 2 is about 10 meters, the overall shape of the coil needs to follow the principle of convenient transportation, the coil is bent to be spiral in order to save the volume, and the spiral copper cooling coil has strong corrosion resistance and good thermal conductivity; 2-3 same models can be prepared for standby, and when the fluid temperature is higher, a plurality of the models are connected in series to improve the cooling effect.
Referring to fig. 3 again, the volume of the cooling water tank 3 is sufficient to submerge the cooling coil 2, and the cooling water tank is made of a firm material and is convenient to transport; in this embodiment, the cooling water tank 3 is further provided with a water inlet 31 and a water outlet 32 for cooling water to flow through, which are controlled by a ball valve, on the side wall near the top, and the size of the water inlet and the water outlet should not be too large (as the diameter is preferably 6mm-8 mm), so that the cooling water tank is convenient for connecting a common water pipe. This cooling water tank with advance, delivery port can realize the control to cooling water temperature through water injection, the drainage rate of control water tank, guarantees the cooling effect to the cooling coil. Meanwhile, the cooling water tank needs to have certain compressive strength, is convenient to transport and can bear water injection pressure, and the purpose of quickly cooling can be achieved by adding ice blocks into the water tank when necessary.
It should be noted that the structure of the cooling water tank 3 is preferably as shown in fig. 3, but not limited to the structure shown in fig. 3, and in other embodiments, various structures are applicable to the present invention as long as the structure can keep the inside of the cooling water tank always having the cold water flow.
A condensation tank 4 having a third fluid inlet 41 and a third fluid outlet 42, wherein the third fluid inlet 41 is a long pipe which is communicated to the inside of the condensation tank, a ball valve outlet 43 is arranged at the bottom or the side wall of the condensation tank 4, and the ball valve outlet 43 is lower than the third fluid outlet 42;
in some embodiments, the material of the condensation tank 4 is red copper, carbon steel or stainless steel, and the distance from the bottom end 411 of the long tube to the bottom of the condensation tank is 1/3-1/5 of the height of the condensation tank.
In this embodiment, as shown in fig. 4, the condensing tank 4 is made of copper or other metal alloy with good heat conductivity, the sealing performance is high, the shape is preferably cylindrical, the height of the tank body is increased as much as possible on the premise of convenient transportation, and the separation efficiency of condensed water and non-condensed gas is improved; and the design of the copper tank body can enhance the separation effect of condensed water and non-condensed gas by rinsing cold water in the tank body to reduce the temperature, and simultaneously can prevent component loss or air pollution. The top of the condensing tank 4 is provided with a sample inlet port (namely, the third fluid inlet 41) and a sample outlet port (namely, the third fluid outlet 42), and the sample inlet port 41 extends inwards to the bottom of the device (taking the height of the tank body as reference, the height of the tank body which extends into the inner part of the device and is left about 1/5 from the inner bottom surface) so that condensed water with heavier density directly falls on the bottom of the tank body to prevent steam from being emitted when the liquid falls; the sample outlet port 42 is flush with the inner top where a non-condensable gas sample is collected. The side wall of the bottom of the condensing tank 4 is provided with an outlet 43 with a ball valve, so that condensed water samples can be collected at any time or condensed water can be discharged when the amount of the condensed water in the tank is too high (here, exceeds the height 1/2 of the tank body), and the space in the tank is released. The fluid inlet 41 and the fluid outlet 42 on the top of the tank body should be marked obviously to prevent errors in pipeline connection.
It should be noted that the structure of the condensation tank 4 is preferably as shown in fig. 4, but not limited to the structure shown in fig. 4, in other embodiments, the fluid outlet 42 may not be disposed on the top of the condensation tank 4 or the top of the sidewall thereof, and the ball valve outlet 43 may also be disposed on the bottom of the condensation tank 4 or the bottom of the sidewall thereof, all without limitation, as long as the positional relationship between the fluid outlet 42 and the ball valve outlet 43 satisfies the conditions defined in the claims.
And/or the acid gas removal device 5 comprises a fourth fluid inlet 51 and a fourth fluid outlet 52, wherein the fourth fluid inlet 51 and the fourth fluid outlet 52 are respectively arranged at two ends of the acid gas removal device 5, and the interior of the acid gas removal device 5 is filled with the acid gas adsorbent;
in some embodiments, the acid gas removal device is made of transparent tempered glass, and the acid gas removal device is one or a plurality of acid gas removal devices connected in series.
In this embodiment, as shown in fig. 5, the acid gas removing device 5 is made of a transparent tempered glass plate or other transparent material with good sealing performance, and at least one side of the bottom plate is detachable and is used for filling acid gas adsorbents such as soda lime, barium lime, calcium lime, and the like. During the sampling, the cylinder is inside to be filled with soda lime as the acid gas adsorbent, chooses for use the aim at of transparent material conveniently to observe the adsorbent and discolours the progress, becomes grey when pink soda lime and instructs it to lose its adsorption efficiency to acid gas, needs to change the adsorbent. A gas sample enriched in non-acid gas components is collected at the end of the apparatus. The device can be prepared in a plurality of series connection according to the characteristics of gas components, and the removal efficiency is improved.
It is noted that acid gas removal unit 5 is preferably, but not limited to, a structure as shown in fig. 4.
In combination with the above components, the second embodiment of the invention discloses a geothermal well full-flow sampling system formed by connecting the components, and specifically, a water-vapor separator 1, a cooling device (comprising a cooling coil 2 and a cooling water tank 3), a condensing tank 4 and/or an acid gas removal device 5 are connected by connecting a fluid outlet of any one device to a fluid inlet of another device, and are communicated by using a PVC plastic pipe, so that a practically usable geothermal well full-flow sampling system is formed.
In this embodiment, the interfaces of the water-vapor separator, the cooling device, the condensing tank and the acid gas removing device are external wire interfaces with uniform sizes, and are connected and assembled by PVC plastic pipes with corresponding sizes to form the geothermal well full-flow sampling system. Specifically, as shown in fig. 6, a water-vapor separator connector is welded right in the middle of the side surface of the water outlet pipe at 1.5 to 2 meters of the geothermal well head, and the water-vapor separator 1, the cooling coil 2, the condensation tank 4 and the acid gas removal device 5 are connected in sequence, specifically, the air outlet 14 of the water-vapor separator 1 is connected to the fluid inlet 21 of the cooling coil 2, the fluid outlet 22 of the cooling coil 2 is connected to the fluid inlet 41 of the condensation tank 4, the fluid outlet 42 of the condensation tank 4 is connected to the fluid inlet 51 of the acid gas removal device 5, and all ball valves are kept in a closed state in the connection process; placing the cooling coil 2 in a cooling water tank 3, connecting a cold water pipe through a cold water inlet 31 of the tank body, filling cold water in the tank, and immersing the cooling coil 2; the acid gas removal device 5 is filled with soda lime particles, and a layer of cotton is padded at the fluid inlet 51 and the fluid outlet 52 respectively to prevent the adsorbent particles from being pushed to block a connecting pipeline when high-pressure gas flows through the adsorbent particles.
It should be noted that, the geothermal well full-flow sampling system is not limited to the connection manner shown in fig. 6, and in the actual use process, the various components (including the water-vapor separator, the cooling device, the condensation tank and the acid gas removal device) in the collecting device can select a proper assembly sequence and whether to assemble according to the actual conditions of the geothermal fluid temperature, the test target components, and the like.
In view of the geothermal well full-flow sampling system mentioned in the second embodiment, a third embodiment of the present invention provides a collecting method based on the collecting device shown in embodiment 2, please refer to fig. 7, which includes:
the liquid mixed phase geothermal fluid discharged from the geothermal well flows through a water-vapor separator and is separated into liquid phase and gas phase fluid, wherein the liquid phase fluid is a geothermal water sample a; the gas phase fluid flows through a cooling device and is separated into condensed water and non-condensed gas; the condensed water and the non-condensed gas again flow through the condensing tank to collect condensed water and discharge the non-condensed gas. Wherein the condensed water is a condensed water sample b; the non-condensed gas flows through the acid gas removing device, so that the on-site removal of acid components such as carbon dioxide, hydrogen sulfide and the like is realized, and a non-acid component gas enriched sample d is collected.
Referring to fig. 6 again, the working process is as follows:
before sampling, the ball valves of the cold water outlet 32 of the cooling water tank 3 and the ball valve outlet 43 on the side wall of the condensing tank 4 are kept closed, all the ball valves (including the fluid inlet 11, the fluid outlet 12 and the air outlet 14) on the water-vapor separator 1 are opened to the maximum, the geothermal well control flange and the ball valve 10 are opened slowly, geothermal fluid enters the device, the tightness of each connection part is checked, the temperature change of cold water in the cooling water tank 3 is tested, and the color change condition of the adsorbent in the acid gas removing device 5 is observed. If the temperature of the cooling water rises faster, the circulation rate of the cooling water can be increased or ice blocks can be continuously added into the cooling water tank; if the color change speed is high, a plurality of acid gas removal devices 5 can be connected in series. The flow of the fluid in the device is finely adjusted by using the geothermal well flange and the ball valve 10 in front of the water-vapor separator 1, so that the fluid smoothly circulates in the whole device for 10 to 20 minutes.
When the values of the thermometer 15 and the pressure gauge 16 on the water-vapor separator 1 are stable and the continuous and stable hot water flows out from the fluid outlet 12, the sampling can be performed. The geothermal water sample a of steam loss is collected at the fluid outlet 12 of the water-steam separator 1, the values of the thermometer 15 and the pressure gauge 16 during the sampling period are recorded, and the attention is paid to prevent high-temperature scald. When the non-condensed gas sample c is collected, the fluid outlet 42 of the condensing tank 4 is disconnected from the subsequent devices, and then the fluid outlet 42 is directly connected to a gas collecting device, in this embodiment, the gas is collected by using an aluminum bag. After sampling of the non-condensable gas sample c is completed, the fluid outlet 42 is reconnected to the acid gas removal unit 5 and the air within the acid gas removal unit 5 is exhausted for 5 minutes, and then the non-acidic component gas enriched sample d may be collected at the end of the acid gas removal unit 5. In the sample collection process, the amount of condensed water in the condensing tank 4 is checked, when the volume exceeds 1/2, the condensed water is discharged through the ball valve outlet 43 on the side wall of the bottom, and at the moment, a condensed water sample b can be collected; if the condensate water generation amount is less, the water sample in the condenser pipe can be collected to obtain a condensate water sample b after the sampling is finished.
The geothermal well full-flow sampling system and the introduction of the geothermal well fluid sample collection method based on the geothermal well full-flow sampling system are completed. The collecting system disclosed by the invention can realize the classified collection of geothermal water, condensed water, non-condensed gas and/or gas samples enriched with non-acidic components in a geothermal well through links of water-vapor separation, cooling, condensed water removal and/or acidic gas removal and the like. The device and the related technical method realized by the invention and the corresponding embodiment can be used for geothermal wells (such as wells for producing geothermal fluid including medium and high temperature geothermal fluids) in all temperature ranges, and the operation process is safe, simple and efficient.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A geothermal well full-flow sampling system, comprising:
the water-vapor separator is provided with a first fluid inlet, a first fluid outlet and a baffle pipe communicated with the inner space and the outer space of the water-vapor separator, the first fluid inlet is higher than the first fluid outlet, the upper port of the baffle pipe positioned in the inner space of the water-vapor separator is higher than the first fluid inlet, and the lower port of the baffle pipe positioned in the outer space forms an air outlet;
a cooling device comprising a cooling coil and a cooling water tank, the cooling coil having a second fluid inlet and a second fluid outlet, and the cooling coil being fully immersed in the cooling water tank filled with cold water;
the condensation tank is provided with a third fluid inlet and a third fluid outlet, the third fluid inlet is a long pipe which is communicated to the interior of the condensation tank, a ball valve outlet is further arranged at the bottom or on the side wall of the condensation tank, and the ball valve outlet is lower than the third fluid outlet;
and the geothermal well full-flow sampling system is formed by connecting a fluid outlet of one device to a fluid inlet of the other device and communicating the water-vapor separator, the cooling device and the condensing tank by using a PVC (polyvinyl chloride) plastic pipe.
2. The geothermal well full-flow sampling system of claim 1, further comprising:
the acid gas removal device comprises a fourth fluid inlet and a fourth fluid outlet, the fourth fluid inlet and the fourth fluid outlet are respectively arranged at two ends of the acid gas removal device, and the acid gas removal device is filled with an acid gas adsorbent;
and the geothermal well full-flow sampling system is formed by connecting a fluid outlet of one device to a fluid inlet of another device and communicating the water-vapor separator, the cooling device, the condensing tank and the acid gas removing device through PVC plastic pipes.
3. The geothermal well full-flow sampling system according to claim 1 or 2, wherein the top end of the water-vapor separator is also provided with a thermometer and a pressure gauge.
4. The geothermal well full-flow sampling system according to claim 3, wherein the water-vapor separator is made of carbon steel or stainless steel.
5. The geothermal well full-flow sampling system according to claim 1 or 2, wherein the cooling coil is made of red copper.
6. The geothermal well full-flow sampling system according to claim 1 or 2, wherein the cooling water tank further has a water inlet and a water outlet.
7. The geothermal well full-flow sampling system according to claim 1 or 2, wherein the material of the condensation tank is red copper, carbon steel or stainless steel.
8. The geothermal well full-flow sampling system according to claim 1 or 2, wherein the distance from the bottom end of the long tube to the bottom of the condensate tank is 1/3-1/5 of condensate tank height.
9. The geothermal well full-flow sampling system according to claim 2, wherein the acid gas removal device is made of transparent tempered glass.
10. The geothermal well full-flow sampling system according to claim 1 or 2, wherein the cooling coil and/or the acid gas removal device is one or more in series.
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