CN113931611B - Optical fiber vibration monitoring shaft flow state simulation experiment device and experiment method thereof - Google Patents
Optical fiber vibration monitoring shaft flow state simulation experiment device and experiment method thereof Download PDFInfo
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- CN113931611B CN113931611B CN202010662453.6A CN202010662453A CN113931611B CN 113931611 B CN113931611 B CN 113931611B CN 202010662453 A CN202010662453 A CN 202010662453A CN 113931611 B CN113931611 B CN 113931611B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 52
- 239000013307 optical fiber Substances 0.000 title claims abstract description 50
- 238000004088 simulation Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title abstract description 9
- 238000002474 experimental method Methods 0.000 title abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 138
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 72
- 230000003287 optical effect Effects 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 238000011161 development Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
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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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides an optical fiber vibration monitoring shaft flow state simulation experiment device and an experiment method thereof. The device adjusts the fluid discharge amount of different shaft positions through the optical fiber vibration shaft monitoring system so as to simulate the phenomenon of different liquid suction amounts of different shaft positions in a laboratory, and then follows the optical fiber vibration monitoring data to analyze and study the liquid suction profile.
Description
Technical Field
The invention relates to the technical field of optical fiber monitoring, in particular to an experimental device and an experimental method for monitoring a shaft flow state through optical fiber vibration.
Background
The optical fiber monitoring technology starts from the 90 th century of the 20 th century, gradually matures after more than 10 years of development, and has been widely applied to the aspects of fire alarming of electric power, tunnels and the like. The optical fiber monitoring technology is very suitable for the underground temperature and pressure real-time monitoring of the oil and gas well because of the characteristics of high temperature resistance, long service life, real-time continuous monitoring and the like.
At present, some domestic researches on optical fiber monitoring technology are carried out, but more researches on the optical fiber monitoring technology are carried out in the field of petroleum application, and less researches on the optical fiber vibration technology are carried out in the field of petroleum, in particular to the analysis and research on the influence of different well bore injection flow patterns on the optical fiber vibration monitoring.
Aiming at the needs of water injection development and thermal recovery heat injection throughput development modes in the oil and gas field development process, a set of optical fiber vibration monitoring simulation device for simulating different well bore injection state conditions is developed and the use method of the optical fiber vibration monitoring simulation device is analyzed. Under laboratory conditions, the method simulates the vibration condition of the optical fiber caused by different well bore injection states, and can effectively and intuitively simulate the liquid absorption profile condition of the well bore, particularly the horizontal section, in the operation of water injection development and thermal production injection thermal throughput development modes.
Disclosure of Invention
The invention overcomes the defects in the prior art, and provides an optical fiber vibration monitoring shaft flow state simulation experiment device and an experiment method thereof aiming at the needs of water injection development and thermal recovery heat injection huff-puff development modes.
The aim of the invention is achieved by the following technical scheme.
An optical fiber vibration monitoring shaft flow state simulation experiment device comprises a gas-liquid high-pressure injection system, an optical fiber vibration shaft monitoring system and a data acquisition system,
the gas-liquid high-pressure injection system comprises a nitrogen cylinder group, a gas booster pump, a high-pressure gas storage tank, a liquid booster pump, a liquid storage tank and a gas-liquid mixer, wherein the nitrogen cylinder group is connected with a gas inlet of the gas booster pump, a gas outlet of the gas booster pump is connected with a gas inlet of the high-pressure gas storage tank through a high-pressure gas conveying pipeline, a gas outlet of the high-pressure gas storage tank is connected with a gas inlet of the gas-liquid mixer, a liquid inlet of the liquid booster pump is connected with a liquid outlet of the liquid storage tank, and a liquid outlet of the liquid booster pump is connected with a liquid inlet of the gas-liquid mixer through a high-pressure liquid conveying pipeline;
the optical fiber vibration shaft monitoring system comprises an analog shaft, an external analog shaft, an adjustable supporting seat, a controllable electronic flowmeter, a fluid recovery pipe and a control cabinet, wherein 18 through holes are uniformly and spirally arranged in the axial direction of the analog shaft, a bypass structure is arranged at the left end of the analog shaft and is connected with a gas-liquid outlet of the gas-liquid mixer through a gas-liquid mixed conveying pipeline, the analog shaft is sleeved in the external analog shaft, the analog shaft and the external analog shaft are in sealing connection through flange buckles, two ends of the external analog shaft are arranged on the adjustable supporting seat, the height of the adjustable supporting seat is adjustable, so that indoor simulation of different inclined angle shaft sections is realized, 19 liquid draining holes are uniformly formed in the axial direction of the analog shaft, each liquid draining hole is respectively connected with a liquid inlet of the liquid recovery pipe through a high-pressure liquid draining pipeline, a liquid outlet of the liquid recovery pipe is connected with a liquid inlet of the liquid storage tank through a liquid return pipeline, the controllable electronic flowmeter and the liquid storage tank are respectively connected with the liquid inlet of the booster pump through a liquid return pipeline, and the liquid inlet of the booster pump are respectively connected with the liquid storage tank through the external pressure meter;
the data acquisition system comprises a terminal display, an optical cable and an optical fiber vibration monitoring demodulator, wherein the optical cable penetrates through the simulated shaft, the tail end of the optical cable penetrates out of the right end of the internal simulated shaft, the head end of the optical cable is connected with the optical fiber vibration monitoring demodulator, and the optical fiber vibration monitoring demodulator is connected with the terminal display.
The length of the external mold shaft is 1000mm, the outer diameter is 114.3mm, the inner diameter is 100.3mm, the interval between adjacent liquid discharge holes is 0.5m, the aperture of the liquid discharge holes is 6.35mm, and the liquid discharge holes are distributed in the radial cross symmetry of the external mold shaft.
The length of the simulated shaft is 1100mm, the outer diameter is 73mm, the inner diameter is 62mm, in the length range of 0-1000mm of the inner simulated shaft, a through hole is formed at intervals of 10mm, and the aperture of the through hole is 3mm.
The left end of the simulated well bore adopts a sealing structure with an optical cable penetrating hole, the right end of the simulated well bore adopts a plug for sealing, the plug is provided with an optical cable penetrating hole, and the optical cable penetrates into the simulated well bore through the optical cable penetrating hole.
And a needle valve is also arranged on the high-pressure liquid discharge pipeline between the liquid discharge hole and the controllable electronic flowmeter.
And a gas mass flowmeter is arranged on a pipeline between the exhaust port of the high-pressure gas storage tank and the gas inlet of the gas-liquid mixer.
A pressure gauge is arranged on the high-pressure air storage tank.
The high-pressure gas storage tank is made of 304 stainless steel and is used for storing high-pressure gas, so that the experimental effect is prevented from being influenced due to unstable gas output by the gas booster pump, and the pressure-resistant grade of the high-pressure gas storage tank is 3 times of the highest experimental pressure.
And an emptying pipeline is further arranged on the liquid storage tank.
The simulation experiment method for monitoring the flow state of the shaft through optical fiber vibration comprises the following steps:
step 1, connecting a gas-liquid high-pressure injection system, an optical fiber vibration shaft monitoring system and a data acquisition system, and then carrying out height adjustment on an adjustable supporting seat according to the inclination angle of an underground actual shaft section so that the overall inclination angle of an analog shaft and an external analog shaft is the same as the actual shaft section angle;
step 2, setting gas flow and liquid flow values according to the gas-liquid mixing proportion set by the experimental scheme, and then carrying out output control on the liquid booster pump and the gas booster pump by using a control cabinet;
and 3, adjusting the controllable electronic flowmeter by using a control cabinet according to experimental requirements so as to simulate different liquid absorption section phenomena, demodulating different vibration data by using an optical fiber vibration monitoring demodulator, and displaying on a terminal display.
The beneficial effects of the invention are as follows: the optical fiber vibration monitoring shaft flow state simulation experiment device provided by the invention can respectively perform indoor simulation according to different shaft injection flow states, and can effectively simulate and analyze the liquid absorption profile of a shaft section by analyzing optical fiber vibration monitoring data corresponding to different flow states; the experimental device adjusts inflow ratios of different gas phases and liquid phases by adopting a gas-liquid high-pressure injection system, and uniformly mixes the gas phases and the liquid phases by using a gas-liquid mixer, so that shaft flow states with different gas-liquid ratios are realized, and shaft states under different steam dryness conditions can be indirectly simulated; the experimental device utilizes the adjustable supporting seat to adjust the inclination angle of the simulated shaft, and can realize the shaft state with the inclination angle of 0-60 degrees.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
in the figure: 1 is a nitrogen cylinder group; 2 is a gas booster pump; 3 is a high-pressure air storage tank; 4 is a liquid booster pump; 5 is a liquid storage tank; 6 is a control cabinet; 7 is an instrument control line; 8 is a high-pressure gas delivery line; 9 is a high-pressure liquid conveying pipeline; 10 is a gas-liquid mixer; 11 is a gas mass flow meter; 12 is a pressure gauge; 13 is an evacuation line; 14 is a back pressure line; 15 is a fluid recovery tube; 16 is a controllable electronic flowmeter; 17 is needle valve; 18 is an external mold wellbore; 19 is an simulated wellbore; 20 is an adjustable support seat; 21 is an optical cable; 22 is an optical cable vibration monitoring demodulator; 23 is a gas-liquid mixing and conveying pipeline; 24 is a high-pressure liquid discharge pipeline; and 25 is a liquid return pipeline.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
The technical scheme of the invention is further described by specific examples.
Example 1
An optical fiber vibration monitoring shaft flow state simulation experiment device comprises a gas-liquid high-pressure injection system, an optical fiber vibration shaft monitoring system and a data acquisition system,
the gas-liquid high-pressure injection system comprises a nitrogen cylinder group 1, a gas booster pump 2, a high-pressure gas storage tank 3, a liquid booster pump 4, a liquid storage tank 5 and a gas-liquid mixer 10, wherein the nitrogen cylinder group 1 is connected with a gas inlet of the gas booster pump 2, a gas outlet of the gas booster pump 2 is connected with a gas inlet of the high-pressure gas storage tank 3 through a high-pressure gas conveying pipeline 8, a gas outlet of the high-pressure gas storage tank 3 is connected with a gas inlet of the gas-liquid mixer 10, a liquid inlet of the liquid booster pump 4 is connected with a liquid outlet of the liquid storage tank 5, and a liquid outlet of the liquid booster pump 4 is connected with a liquid inlet of the gas-liquid mixer 10 through a high-pressure liquid conveying pipeline 9;
the optical fiber vibration shaft monitoring system comprises an inner simulation shaft 19, an outer simulation shaft 18, an adjustable supporting seat 20, a controllable electronic flowmeter 16, a fluid recovery pipe 15 and a control cabinet 6, wherein 18 through holes are uniformly and spirally arranged in the axial direction of the inner simulation shaft 19, a bypass structure is arranged at the left end of the inner simulation shaft 19 and is connected with a gas-liquid outlet of a gas-liquid mixer 10 through a gas-liquid mixing and conveying pipeline 23, the inner simulation shaft 19 is sleeved in the outer simulation shaft 18, the inner simulation shaft 19 and the outer simulation shaft 18 are in sealing connection through flange buckles, two ends of the outer simulation shaft 18 are arranged on the adjustable supporting seat 20, the height of the adjustable supporting seat 20 is adjustable, so that indoor simulation of different inclined angle shaft sections is realized, 19 liquid draining holes are uniformly formed in the axial direction of the outer simulation shaft 18, each liquid draining hole is respectively connected with a liquid inlet of the liquid recovery pipe 15 through a high-pressure liquid draining pipeline 24, a liquid outlet of the liquid recovery pipe 15 is respectively connected with a liquid inlet of a liquid storage tank 5 through a liquid returning pipeline 25, controllable electronic flowmeter 16 is respectively arranged on the high-pressure liquid draining pipeline 24, the controllable electronic flowmeter 16 and the outer simulation shaft 18 are respectively connected with a liquid inlet of the booster pump 5 through a liquid outlet of the booster pump 6 through a liquid returning pipeline 7, and the booster pump 14 is respectively connected with the liquid inlet of the liquid storage tank 14 through the liquid outlet 6;
the data acquisition system comprises a terminal display, an optical cable 21 and an optical fiber vibration monitoring demodulator 22, wherein the optical cable 21 penetrates through the simulated shaft 19, the tail end of the optical cable 21 penetrates out of the right end of the internal simulated shaft 19, the head end of the optical cable 21 is connected with the optical fiber vibration monitoring demodulator 22, and the optical fiber vibration monitoring demodulator 22 is connected with the terminal display.
Example two
Based on the first embodiment, the external mold shaft 18 has a length of 1000mm, an outer diameter of 114.3mm, an inner diameter of 100.3mm, a size of 4-1/2"API tubing, an interval between adjacent drainage holes of 0.5m, and a pore diameter of 6.35mm, and the drainage holes are symmetrically distributed in radial intersection of the external mold shaft 18.
The length of the inner simulation shaft 19 is 1100mm, the outer diameter is 73mm, the inner diameter is 62mm, the size of the API oil pipe is 2-7/8', in the length range of 0-1000mm of the inner simulation shaft 19, a through hole is formed at intervals of 10mm, and the aperture of the through hole is 3mm; the right end of the inner simulated wellbore 19 is provided with a centralizing module.
The left end of the inner simulation shaft 19 adopts a sealing structure with an optical cable penetrating hole, the right end of the inner simulation shaft 19 adopts a plug for sealing, the plug is provided with the optical cable penetrating hole, and the optical cable 21 penetrates into the inner simulation shaft 19 through the optical cable penetrating hole.
A needle valve 17 is also provided on the high pressure drain line 24 between the drain hole and the controllable electronic flowmeter 16.
Example III
On the basis of the second embodiment, a gas mass flow meter 11 is provided on a line between the exhaust port of the high-pressure gas tank 3 and the gas inlet of the gas-liquid mixer 10.
A pressure gauge 12 is provided on the high-pressure air tank 3.
The high-pressure gas storage tank 3 adopts a 304 stainless steel tank body, has high strength and corrosion resistance, and the high-pressure gas storage tank 3 is used for storing high-pressure gas, so that the experimental effect is prevented from being influenced because the gas output by the gas booster pump 2 is unstable, and the pressure-resistant grade of the high-pressure gas storage tank 3 is 3 times of the highest experimental pressure.
The liquid storage tank 5 is also provided with an emptying pipeline 13.
Example IV
The simulation experiment method for monitoring the flow state of the shaft through optical fiber vibration comprises the following steps:
step 1, connecting a gas-liquid high-pressure injection system, an optical fiber vibration shaft monitoring system and a data acquisition system, and then carrying out height adjustment on an adjustable supporting seat according to the inclination angle of an underground actual shaft section so that the overall inclination angle of an analog shaft and an external analog shaft is the same as the actual shaft section angle;
step 2, setting gas flow and liquid flow values according to the gas-liquid mixing proportion set by the experimental scheme, and then carrying out output control on the liquid booster pump and the gas booster pump by using a control cabinet;
and 3, adjusting the controllable electronic flowmeter by using a control cabinet according to experimental requirements so as to simulate different liquid absorption section phenomena, demodulating different vibration data by using an optical fiber vibration monitoring demodulator, and displaying on a terminal display.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing detailed description of the invention has been presented for purposes of illustration and description, but is not intended to limit the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (9)
1. The utility model provides a optic fibre vibration monitoring pit shaft flow state simulation experiment device which characterized in that: comprises a gas-liquid high-pressure injection system, an optical fiber vibration shaft monitoring system and a data acquisition system,
the gas-liquid high-pressure injection system comprises a nitrogen cylinder group, a gas booster pump, a high-pressure gas storage tank, a liquid booster pump, a liquid storage tank and a gas-liquid mixer, wherein the nitrogen cylinder group is connected with a gas inlet of the gas booster pump, a gas outlet of the gas booster pump is connected with a gas inlet of the high-pressure gas storage tank through a high-pressure gas conveying pipeline, a gas outlet of the high-pressure gas storage tank is connected with a gas inlet of the gas-liquid mixer, a liquid inlet of the liquid booster pump is connected with a liquid outlet of the liquid storage tank, and a liquid outlet of the liquid booster pump is connected with a liquid inlet of the gas-liquid mixer through a high-pressure liquid conveying pipeline;
the optical fiber vibration shaft monitoring system comprises an analog shaft, an external analog shaft, an adjustable supporting seat, a controllable electronic flowmeter, a fluid recovery pipe and a control cabinet, wherein 18 through holes are uniformly and spirally arranged in the axial direction of the analog shaft, a bypass structure is arranged at the left end of the analog shaft and is connected with a gas-liquid outlet of the gas-liquid mixer through a gas-liquid mixed conveying pipeline, the analog shaft is sleeved in the external analog shaft, the analog shaft and the external analog shaft are in sealing connection through flange buckles, two ends of the external analog shaft are arranged on the adjustable supporting seat, the height of the adjustable supporting seat is adjustable, so that indoor simulation of different inclined angle shaft sections is realized, 19 liquid draining holes are uniformly formed in the axial direction of the analog shaft, each liquid draining hole is respectively connected with a liquid inlet of the fluid recovery pipe through a high-pressure liquid draining pipeline, a liquid outlet of the fluid recovery pipe is connected with a liquid inlet of the liquid storage tank through a liquid return pipeline, the controllable electronic flowmeter and the external analog shaft are respectively arranged on the high-pressure liquid draining pipeline, and the external analog shaft is connected with the liquid storage tank through a liquid inlet of the booster pump through a liquid return pipeline;
the data acquisition system comprises a terminal display, an optical cable and an optical fiber vibration monitoring demodulator, wherein the optical cable penetrates through the simulated shaft, the tail end of the optical cable penetrates out of the right end of the internal simulated shaft, the head end of the optical cable is connected with the optical fiber vibration monitoring demodulator, and the optical fiber vibration monitoring demodulator is connected with the terminal display.
2. The optical fiber vibration monitoring wellbore flow regime simulation experiment device according to claim 1, wherein: the length of the external mold shaft is 1000mm, the outer diameter is 114.3mm, the inner diameter is 100.3mm, the interval between adjacent liquid discharge holes is 0.5m, the aperture of the liquid discharge holes is 6.35mm, and the liquid discharge holes are distributed in the radial cross symmetry of the external mold shaft.
3. The optical fiber vibration monitoring wellbore flow regime simulation experiment device according to claim 2, wherein: the length of the simulated shaft is 1100mm, the outer diameter is 73mm, the inner diameter is 62mm, in the length range of 0-1000mm of the inner simulated shaft, a through hole is formed at intervals of 10mm, and the aperture of the through hole is 3mm.
4. The optical fiber vibration monitoring wellbore flow regime simulation experiment device according to claim 1, wherein: the left end of the simulated well bore adopts a sealing structure with an optical cable penetrating hole, the right end of the simulated well bore adopts a plug for sealing, the plug is provided with an optical cable penetrating hole, and the optical cable penetrates into the simulated well bore through the optical cable penetrating hole.
5. The optical fiber vibration monitoring wellbore flow regime simulation experiment device according to claim 1, wherein: and a needle valve is also arranged on the high-pressure liquid discharge pipeline between the liquid discharge hole and the controllable electronic flowmeter.
6. The optical fiber vibration monitoring wellbore flow regime simulation experiment device according to claim 1, wherein: and a gas mass flowmeter is arranged on a pipeline between the exhaust port of the high-pressure gas storage tank and the gas inlet of the gas-liquid mixer.
7. The optical fiber vibration monitoring wellbore flow regime simulation experiment device according to claim 1, wherein: a pressure gauge is arranged on the high-pressure air storage tank.
8. The optical fiber vibration monitoring wellbore flow regime simulation experiment device according to claim 1, wherein: the high-pressure gas storage tank is made of 304 stainless steel and is used for storing high-pressure gas, so that the experimental effect is prevented from being influenced due to unstable gas output by the gas booster pump, and the pressure-resistant grade of the high-pressure gas storage tank is 3 times of the highest experimental pressure.
9. The optical fiber vibration monitoring wellbore flow regime simulation experiment device according to claim 1, wherein: and an emptying pipeline is further arranged on the liquid storage tank.
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