CN108196019B - Three-dimensional injection-production device for testing quality index of reinjection water of underground water-sealed cave depot - Google Patents
Three-dimensional injection-production device for testing quality index of reinjection water of underground water-sealed cave depot Download PDFInfo
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- CN108196019B CN108196019B CN201711352279.XA CN201711352279A CN108196019B CN 108196019 B CN108196019 B CN 108196019B CN 201711352279 A CN201711352279 A CN 201711352279A CN 108196019 B CN108196019 B CN 108196019B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 238000012360 testing method Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 25
- 239000007924 injection Substances 0.000 claims abstract description 25
- 239000011435 rock Substances 0.000 claims abstract description 14
- 238000002474 experimental method Methods 0.000 claims description 16
- 238000013016 damping Methods 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 45
- 238000013461 design Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 230000005465 channeling Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1893—Water using flow cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
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Abstract
The invention discloses a three-dimensional injection and production device for testing the water quality index of reinjection water of an underground water-sealed cave depot, which comprises an experimental platform, an underground water-sealed cave depot three-dimensional model and a advection pump, wherein the underground water-sealed cave depot three-dimensional model comprises a device box body, artificial rocks are filled in the device box body, a water curtain tunnel and a main cave chamber are reserved between the device box body and the artificial rocks, the water curtain tunnel is positioned at the rear side of the main cave chamber, a water inlet pipe is arranged at the top of the water curtain tunnel, a water injection pipe is arranged at the bottom of the water curtain tunnel, the water injection pipe is connected with the advection pump through a conveying pipe, an oil inlet and an oil outlet are arranged on the rear end surface of the main cave chamber, an oil inlet pipe is arranged on the oil inlet, an oil outlet pipe is arranged on the oil outlet, and partition plates are uniformly arranged in the main cave chamber, the device of the invention obtains the influence rule of water quality, determining each index of water quality.
Description
Technical Field
The invention relates to the technical field of water seal cave depots, in particular to a three-dimensional injection and production device for testing the water quality index of reinjection water of an underground water seal cave depot.
Background
With the rapid development of Chinese economy, the demand of petroleum is increasing. For China, the storage of petroleum strategic reserves plays an important role in ensuring the national safety and the sustainable development of national economy. The underground water-sealed cave depot has the advantages of safety, economy, high efficiency, large storage capacity and the like, so the underground water-sealed cave depot is greatly developed in recent decades and is widely applied to the national petroleum strategic reserve. The underground water seal cave depot needs a large amount of stratum seepage water and manual water replenishing to maintain the leakproofness of the cave depot to crude oil, and a large amount of water is to be produced, and the water discharges everywhere and can cause pollution, and also causes waste, consequently adopts the produced water reinjection more, but whether reinjection water quality accords with the reinjection requirement, needs to study, the experimental apparatus in this aspect is urgently needed.
Disclosure of Invention
The invention aims to provide a three-dimensional injection and production device for testing the water quality index of reinjection water of an underground water sealed rock cavern, aiming at overcoming the defects in the prior art, and testing the influence of the reinjection water on the rock permeability of the cavern and the influence on a water replenishing stabilizing system of the cavern, so that the influence law of each index parameter of water quality on the spatial permeability of the water replenishing system and the influence law of the water replenishing stabilizing system is obtained, and each index of the water quality is determined.
In order to solve the technical problems, the invention adopts the following technical scheme: the three-dimensional injection and production device for testing the quality index of reinjection water of the underground water-sealed cave depot comprises an experiment platform, an underground water-sealed cave depot three-dimensional model and a advection pump, wherein the underground water-sealed cave depot three-dimensional model is positioned above the experiment platform and comprises a device box body, artificial rocks are filled in the device box body, a water curtain roadway and a main cave chamber are reserved between the device box body and the artificial rocks, the water curtain roadway is positioned at the rear side of the main cave chamber, a water inlet pipe is arranged at the top of the water curtain roadway, a water injection pipe is arranged at the bottom of the water curtain roadway, the water injection pipe is connected with the advection pump through a conveying pipe, an oil inlet and an oil outlet are arranged on the rear end surface of the main cave chamber, an oil inlet pipe is arranged on the oil inlet, an oil outlet pipe is arranged on the oil outlet, and partition plates are uniformly arranged in the main, the main cavern is divided into at least sub-caverns by the partition plate, a through hole is formed between every two adjacent sub-caverns, water outlets are formed in the bottoms of the sub-caverns, and water drainage hoses are arranged on the water outlets.
The invention is further arranged that the oil inlet pipe and the oil outlet pipe are both provided with flow control valves, and the design of the flow control valves can control the flow of oil products in the oil inlet pipe and the oil outlet pipe, thereby accurately and effectively controlling the height of the oil products in the main chamber, facilitating the subsequent experiment operation, improving the accuracy of experiment values and simultaneously improving the operation safety performance of the whole device.
The invention is further set that the side wall of the device box body is a stone enclosing wall, the design of the stone enclosing wall is more reasonable, the device box body is more in line with the terrain design of the actual underground water seal cave depot, and the reliability of the experiment is improved.
The invention is further set that a damping plate is arranged below the advection pump and fixedly connected with the experiment platform through a support frame, the damping plate is designed to facilitate the installation of the advection pump, simultaneously reduce the mechanical noise of the advection pump during working and improve the operation safety performance, the support frame is designed to facilitate the installation and fixation between the damping plate and the experiment platform, and the advection pump is ingenious in design and convenient and fast to install and disassemble.
The invention is further set that the four side walls of the device box body are provided with guide pipes, the guide pipes are designed to facilitate the laying of the drainage hoses, the specific drainage hose is laid on the bottom drainage port of each branch chamber, the laying of the drainage hose at the bottom of each branch chamber is carried out successively according to the sequence from left to right, from front to back and from top to bottom, the drainage hose with the label tape 1 is laid at the bottom of the first branch chamber, the drainage hose with the label tape 2 is laid at the bottom of the second branch chamber, the drainage hoses are laid in sequence until all the drainage hoses in all the branch chambers are completely laid, and the drainage hose is pulled out from the guide pipe closest to the specific position of each drainage hose, so that the subsequent measurement of the drainage amount in each branch chamber is facilitated, and the structural design is more ingenious and reasonable.
According to the device, through a produced water reinjection seepage experiment, the influence of the reinjected produced water on rock permeability of the cavern and the influence of the reinjected produced water on a water replenishing stabilizing system of the cavern are tested, the influence rule of water quality index parameters on the spatial permeability of the water replenishing system and the influence rule of the water replenishing stabilizing system are obtained, and each index of the water quality is determined.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural diagram of a three-dimensional injection and production device for testing the water quality index of reinjection water of an underground water-sealed cave depot;
FIG. 2 is a schematic structural diagram of a case of the apparatus of the present invention;
FIG. 3 is a schematic view of the installation structure of the partition plate according to the present invention;
fig. 4 is a schematic diagram of the internal structure of the device case in the invention.
In the figure: 1. an experimental platform; 2. an underground water seal cave depot three-dimensional model; 3. a advection pump; 4. a device case; 5. artificial rock; 6. a water curtain roadway; 7. a main chamber; 8. a water inlet pipe; 9. a water injection pipe; 10. a delivery pipe; 11. an oil inlet; 12. an oil outlet; 13. an oil inlet pipe; 14. an oil outlet pipe; 15. a partition plate; 16. perforating; 17. a water outlet; 18. a drain hose; 19. a flow control valve; 20. a damper plate; 21. a support frame; 22. a conduit; 23. and (5) a stone enclosing wall.
Detailed Description
As shown in fig. 1 to 4, the three-dimensional injection and production device for testing the quality index of the reinjection water of the underground water-sealed cave depot comprises an experimental platform 1, an underground water-sealed cave depot three-dimensional model 2 and a advection pump 3, wherein the underground water-sealed cave depot three-dimensional model 2 is positioned above the experimental platform 1, the underground water-sealed cave depot three-dimensional model 2 comprises a device box body 4, the side wall of the device box body 4 is a stone enclosing wall 23, the stone enclosing wall 23 is more reasonably designed to better conform to the actual topographic design of the underground water-sealed cave depot, the experimental reliability is improved, the device box body 4 is filled with artificial rocks 5, a water curtain roadway 6 and a main cave chamber 7 are reserved between the device box body 4 and the artificial rocks 5, the water curtain roadway 6 is positioned at the rear side of the main cave chamber 7, a water inlet pipe 8 is arranged at the top of the water curtain roadway 6, a water injection pipe 9 is arranged at the bottom of the water curtain roadway, the lower part of the advection pump 3 is provided with a damping plate 20, the damping plate 20 is fixedly connected with the experiment platform 1 through a support frame 21, the damping plate 20 is designed to facilitate the installation of the advection pump 3, simultaneously reduce the mechanical noise of the advection pump 3 during working and improve the operation safety performance, the support frame 21 is designed to facilitate the installation and fixation between the damping plate 20 and the experiment platform 1, the design is ingenious, the installation and the disassembly are convenient, the rear end face of the main chamber 7 is provided with an oil inlet 11 and an oil outlet 12, the oil inlet 11 is provided with an oil inlet pipe 13, the oil outlet 12 is provided with an oil outlet pipe 14, the oil inlet pipe 13 and the oil outlet pipe 14 are both provided with flow control valves 19, the flow control valves 19 are designed to control the flow of oil in the oil inlet pipe 13 and the oil outlet pipe 14, thereby accurately and effectively controlling the height of the oil in the main chamber 7, facilitating the subsequent experiment operation and improving, and simultaneously, the operation safety performance of the whole device is also improved.
The main cavern 7 is uniformly provided with the partition plates 15, the partition plates 15 divide the main cavern 7 into at least 54 branch caverns, and the perforations 16 are arranged between the adjacent branch caverns, so that the communication of each branch cavern can be ensured, and the oil in the main cavern 7 can be communicated with each other due to the fact that the density of the oil is less than that of the water; the bottom of the branch cavern is provided with a water outlet 17, a water discharge hose 18 is arranged on the water outlet 17, an operator collects the water through the device, specific measurement is carried out outside, and the design is more compact and reasonable. The four side walls of the device box body 4 are provided with guide pipes 22, the design of the guide pipes 22 can facilitate the laying of the drainage hoses 18, the specific drainage hoses 18 are laid on the bottom water outlets 17 of each branch cavern, the laying of the drainage hoses 18 at the bottom of each branch cavern is carried out successively according to the sequence from left to right, from front to back and from top to bottom, the drainage hoses 18 with the reference number belt 1 are laid at the bottom of the first branch cavern, the drainage hoses 18 with the reference number belt 2 are laid at the bottom of the second branch cavern, and the laying is carried out sequentially until all the drainage hoses 18 in all the branch caverns are laid, and the drainage hoses 18 are pulled out from the guide pipes 22 closest to each other according to the specific position of each drainage hose 18, so that the subsequent measurement of the drainage quantity in each branch cavern is facilitated, and the structural design is more ingenious and reasonable.
During actual work, the whole device can be ensured to be operated and then an actual experiment is carried out, firstly, water with measured water quality components is injected into the water curtain roadway 6 through the water inlet pipe 8 and then injected into the three-dimensional model 2 of the underground water-sealed cave depot through the water curtain roadway 6, then oil is conveyed to the oil inlet 11 through the oil inlet pipe 13, meanwhile, the input quantity of the oil is controlled through the flow control valve 19, so that the height of the oil in the main cave chamber 7 is controlled, then the oil is injected into the main cave chamber 7 of the three-dimensional model 2 of the underground water-sealed cave depot through the oil inlet 11, and the pressure of the injected water is adjusted until the oil surface in the main cave chamber 7 keeps a certain liquid level height, so that the flow of the injected water is controlled within a specified numerical range, and the water discharge quantity of each branch cave chamber is measured through the water discharge port 17; then, the discharged water is conveyed into a water injection pipe 9 through a conveying pipe 10 by a constant flow pump 3 and then is injected into a water curtain roadway 6 through the water injection pipe 9, so that the circulating injection of the water is realized, the water is repeatedly injected in the way, the water discharge of each branch cavern at each time is measured, the uniform water-supplementing performance of a water curtain system and the uniform water-supplementing stability are judged by observing the change of the water discharge of each branch cavern, when the water discharge of the branch cavern is detected to be increased and reduced at the same time, the phenomena of blockage and channeling appear in the branch cavern, the phenomena of channeling appear in the water-supplementing process when the water discharge is increased, the phenomena of blockage and channeling appear in the water-supplementing process when the water discharge is reduced or even is not discharged, and the stability of the water-supplementing system of the water seal cavern is changed when the two conditions appear;
according to the invention, the oil quantity of the oil inlet 11 and the oil outlet 12 is controlled, so that the height of an oil product in the main chamber 7 is effectively controlled, water with the same water quality is adopted for replenishing water at different oil product heights, the influence of the liquid level height of the oil product on the stability of a water replenishing system is obtained through specific experimental measurement, water is replenished through controlling the oil product at a specified height by adopting different water quality water, and the influence of different water quality parameters on the stability of the water replenishing system is obtained through specific experimental measurement. The device can simulate a three-dimensional large simulation device of a water curtain system of a large crude oil water seal cave depot, and test the influence of produced water reinjection on the rock permeability of the cave depot and the influence on a water supplementing stabilizing system of the cave depot through a produced water reinjection seepage experiment, so that the influence rule of water quality index parameters on the space permeability of the water supplementing system and the water supplementing stabilizing system is obtained, and each index of water quality is determined.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (5)
1. The utility model provides a test underground water seal rock cave storehouse reinjection water quality index's three-dimensional injection adopts device which characterized in that: the device comprises an experiment platform (1), an underground water seal cave depot three-dimensional model (2) and a advection pump (3), wherein the underground water seal cave depot three-dimensional model (2) is positioned above the experiment platform (1), the underground water seal cave depot three-dimensional model (2) comprises a device box body (4), the device box body (4) is filled with artificial rocks (5), a water curtain roadway (6) and a main cave (7) are reserved in the artificial rocks (5), the water curtain roadway (6) is positioned on the rear side of the main cave (7), a water inlet pipe (8) is arranged at the top of the water curtain roadway (6) and used for injecting water for measuring water quality components into the water curtain roadway (6), a water injection pipe (9) is arranged at the bottom of the water curtain roadway (6), the water injection pipe (9) is connected with the advection pump (3) through a conveying pipe (10), an oil inlet (11) and an oil outlet (12) are arranged on the rear end face of the main cave (7), be provided with into oil pipe (13) on oil inlet (11), be provided with oil outlet pipe (14) on oil outlet (12), evenly be provided with division board (15) in main hole room (7), division board (15) will main hole room (7) are cut apart into at least 54 branch hole rooms, are provided with perforation (16) between the adjacent branch hole room, the bottom of dividing the hole room all sets up outlet (17), be provided with drainage hose (18) on outlet (17), collect to externally measure, utilize advection pump (3) to carry discharged water through conveyer pipe (10) in water injection pipe (9) after that, pour into water curtain tunnel (6) through water injection pipe (9), realize the circulation injection of water.
2. The three-dimensional injection production device for testing the water quality index of the reinjection water of the underground water-sealed cave depot according to claim 1, which is characterized in that: the oil inlet pipe (13) and the oil outlet pipe (14) are both provided with flow control valves (19).
3. The three-dimensional injection and production device for testing the water quality index of the reinjection water of the underground water-sealed cave depot according to claim 1 or 2, is characterized in that: the side wall of the device box body (4) is a stone enclosing wall (23).
4. The three-dimensional injection production device for testing the water quality index of the reinjection water of the underground water-sealed cave depot according to claim 3, characterized in that: a damping plate (20) is arranged below the constant-current pump (3), and the damping plate (20) is fixedly connected with the experiment platform (1) through a support frame (21).
5. The three-dimensional injection production device for testing the water quality index of the reinjection water of the underground water-sealed cave depot according to claim 1, which is characterized in that: the four side walls of the device box body (4) are provided with guide pipes (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711352279.XA CN108196019B (en) | 2017-12-15 | 2017-12-15 | Three-dimensional injection-production device for testing quality index of reinjection water of underground water-sealed cave depot |
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| CN201711352279.XA CN108196019B (en) | 2017-12-15 | 2017-12-15 | Three-dimensional injection-production device for testing quality index of reinjection water of underground water-sealed cave depot |
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| CN108196019B true CN108196019B (en) | 2020-10-02 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109374504B (en) * | 2018-11-19 | 2020-11-13 | 浙江海洋大学 | Test method for dynamically monitoring water supplementing effect of water curtain of large-scale underground water-sealed stone cave depot |
| CN109444018B (en) * | 2018-11-19 | 2021-01-05 | 浙江海洋大学 | Water quality index measuring method for reinjection water of water-sealed petroleum cavern |
| CN109297883A (en) * | 2018-11-27 | 2019-02-01 | 浙江海洋大学 | Measure the circulation re-injection experimental provision of water seal petroleum cave depot reinjected water water quality indicator |
| CN109374506A (en) * | 2018-11-29 | 2019-02-22 | 浙江海洋大学 | A kind of device of dynamic monitoring Large Underground water seal pit hole library water curtain moisturizing effect |
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