CN205157480U - Measure device that CO2 drove extraction liquid well head throttling effect coefficient - Google Patents
Measure device that CO2 drove extraction liquid well head throttling effect coefficient Download PDFInfo
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- CN205157480U CN205157480U CN201521041093.9U CN201521041093U CN205157480U CN 205157480 U CN205157480 U CN 205157480U CN 201521041093 U CN201521041093 U CN 201521041093U CN 205157480 U CN205157480 U CN 205157480U
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- gas
- well head
- profit
- oil
- effect coefficient
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Abstract
The utility model discloses a measure device that CO2 drove extraction liquid well head throttling effect coefficient, including profit system and gaseous phase system, the profit system send into the hybrid system at temperature control system after inside profit temperature is adjusted with it, simultaneously the gaseous phase system also send into the hybrid system after mixing gas, the hybrid system send into the gas -liquid separation system through muddy defeated pipeline after with profit and gas mixing, and be in thoughtlessly defeated pipeline on be equipped with throttle and observation system, the profit of gas -liquid separation system after with gas -liquid separation send into the profit system again, carry out next one circulation. Oil gas field well head throttle condition can be simulated to this device in the laboratory, temperature drop around the choke valve among the measurement CO2 displacement of reservoir oil well extraction fluid well head throttle process.
Description
Technical field
The utility model discloses a kind of measurement CO
2the device of flooding produced liquid well head throttling effect coefficient.
Background technology
CO
2drive and improve oil recovery factor (CO
2-EOR) as important maturing field secondary exploitation technology, promote the use of at Daqing oil field Partial Block, ensure that production efficiency and the economic interests of maturing field.And oil field shaft mouth collector and delivery pipe road is typically provided with throttling valve, to control well mouth of oil well pressure and oil well output.Owing to containing a large amount of CO in extraction fluid
2gas, occurs in throttling process that joule-Thompson effect produces larger temperature drop, easily after throttling, generates Hydrate Plugging pipeline in pipeline section, cause security incident.Therefore, need CO
2the throttling temperature drop effect of the complex fluid system of-rock gas-oil-water carries out experimental study.
But grade multifactor due to temperature, gas liquid ratio, water percentage, gas group after temperature, valve before relating to upstream pressure, downstream pressure, valve, therefore experiment measuring difficulty is large.And CO
2drive extraction fluid normally high pressure conditions, further increase the difficulty of experiment measuring.
Utility model content
The purpose of this utility model is exactly by this experimental facilities, throttling temperature drop effect (measurement of JT coefficient) in the heterogeneous throttling process of Measurement accuracy complex fluid.
The technical solution adopted in the utility model is as follows:
A kind of measurement CO
2the device of flooding produced liquid well head throttling effect coefficient, comprise oil-water system and gassy system, described oil-water system sends into commingled system after the profit temperature of its inside regulates by temperature control system, also commingled system is sent into after gas mixes by the gassy system simultaneously, described commingled system sends into Separate System of Water-jet by after profit and gas and vapor permeation by mixed transportation pipeline, and is provided with throttling and recording geometry on described mixed transportation pipeline; Profit after gas-liquid separation is sent into oil-water system by described Separate System of Water-jet again, carries out next one circulation.
Described gassy system comprises combination gas gas cylinder, gas buffer tank, gas flow take into account variable valve, two described gas cylinders are connected with gas buffer tank, described gas buffer tank is connected with the entrance of commingled system, and the pipeline that the pipeline be connected with gas buffer tank at gas cylinder, gas buffer tank are connected with commingled system is equipped with gas meter, variable valve, pressure transducer and temperature sensor.
Described oil-water system comprises a storage tank, after described storage tank series boosting pump, fluid flow take into account high-pressure stop valve, is connected with commingled system.
Described booster pump outlet place adopts recirculatory pipe to be connected in storage tank, and recirculatory pipe is connected with high-pressure stop valve.
Described commingled system comprises an air and liquid mixer, and it comprises suction chamber, and described suction chamber is provided with nozzle, wireway and diffuser pipe, and described nozzle is connected with oil-water system, and the profit of oil-water system enters into suction chamber by nozzle; Described wireway is connected with gassy system, and the gas of gassy system enters suction chamber by wireway; Gas liquid mixture is discharged by diffuser pipe.Liquid sprays from nozzle with high speed, when swiftly flowing liquid is by suction chamber, can form vacuum at suction chamber, suck a large amount of gas by wireway, after gas enters mixing chamber, at trunnion, place acutely mixes with liquid, form gas liquid mixture, discharged by anemostat.
Described throttling and recording geometry comprise high-pressure throttle, are provided with high pressure transparent section in the front and back of described high-pressure throttle.
Also be respectively arranged with dismountable reducing pipeline section before and after described high-pressure throttle, described reducing pipeline section is provided with visual window, by transparent section mobility status before and after the shooting of high-speed camera instrument.
Described reducing pipeline section is also in series with pressure and temperature sensor; Pressure transducer before and after valve obtains force value before and after valve; Temperature before and after valve is recorded by temperature sensor.
Described piece-rate system is made up of atmospheric gas liquid/gas separator, vacuum pump and variable valve.
Described atmospheric gas liquid/gas separator and storage tank can be same device.
Described temperature control system is become with local Heater group by storage tank electrical heating facility.
The measuring method of this device is as follows:
1, profit first makes fluid temperature control in experimental temperature by the heating arrangement stirred in fully mixed merga pass storage tank in storage tank, then through supercharge pump supercharging, after flowmeter metering, arrives air and liquid mixer;
2, the carbon dioxide in storage gas cylinder and combination gas are filled with in surge tank respectively from gas cylinder, more fully mix with liquid stream at air and liquid mixer after flowmeter metering;
3, oil gas water enters longer mixed transportation pipeline and fully carries out heat interchange, respectively by glass vision panel, by high pressure transparent section after high-pressure throttle throttling, completes throttling process;
4. to be brought about the desired sensation flow quantity by liquid flowmeter, gas flow measuring, calculate gas liquid ratio;
5. obtain force value before and after valve by the pressure transducer before and after valve; Temperature before and after valve is recorded by temperature sensor; Following formula is utilized to calculate throttling effect coefficient in the heterogeneous throttling process of complex fluid:
μ
jT-Joule-Thomson effect coefficient (throttling effect coefficient), when representing isenthalpic expansion, temperature is with the rate of change of pressure; The temperature that T-temperature sensor gathers, the pressure that P-pressure transducer gathers, H represents under constant enthalpy state.
Described gas-liquid separator and storage tank are same device.
The beneficial effects of the utility model are as follows:
This device can simulated oil gas field well head flow reduction conditions in the lab, measures CO
2to drive in oil well produced fluid well head throttling process temperature drop before and after throttling valve.
In commingled system, the static energy of fluid, according to the principle of Venturi tube, is converted into kinetic energy by air and liquid mixer, and the material that another part of then carrying under one's arms enters from arm enters in mixing tube together and mixes.Liquid sprays from nozzle with high speed, when swiftly flowing liquid is by mixing chamber, can form vacuum at mixing chamber, suck large quantity of air by wireway, after air enters mixing chamber, at trunnion, place acutely mixes with liquid, form gas liquid mixture, discharged by anemostat.Unique mixed air vessel's design, powerful liquid stream and gas and vapor permeation spray, and make to stir, completely, the bubble of generation is many and fine and smooth.This makes it possible to simulate the Dispersed Flows in field produces or bubble flow, the generation of control slug flow.
In piece-rate system, separation vessel plays quadruple effect.First, it is storage tank, for containing oil-water mixture; Secondly, the effect of well heater is played.Separator bottom has heating jacket can carry out temperature control to liquid, makes temperature simulation temperature of incoming flow before valve.3rd, with stirrer in tank body, profit can be made fully to mix at this.Therefore the effect of oil-water mixer is played.Finally, the effect of gas-liquid separation is played.By optimal design, obtain the suitable volumes of separation vessel; Consider in the process of stirring that having portion gas is dissolved in liquid again, an external huge discharge vacuum pump simultaneously, make to keep negative pressure in tank when testing, gas is got rid of in time.So just can in same device, complete oily mixing wastewater with air, heating and be separated.
In order to prevent super high pressure accident, adopt pressure in safety valve regulation and control circuit.If there is pipeline superpressure, the automatic take-off of safety valve, gas enters air by blow-down pipe security of system.
In order to liquid flow pattern and phenomenon before and after observational study throttling valve, each installation high pressure transparent window before and after throttling valve.
In order to effectively control fluid flow, backflow is adopted to be connected in separation vessel at booster pump outlet place.
Accompanying drawing explanation
Fig. 1 one-piece construction figure of the present utility model;
The structural drawing of Fig. 2 air and liquid mixer;
In figure: 1 storage tank, 2,3 gas cylinder variable valve, 6-gas buffer tank, 7-gas vortex shedding flow meter, 8,10,16,17,19,22-high-pressure stop valve, 9-air and liquid mixer, 12,14-reducing pipeline section, high pressure resistant transparent section before 11-valve, high pressure resistant see-through section after 15-valve, 18-supercharge pump, 20-liquid flowmeter, 21-safety valve, 13 – high-pressure throttle; 23 nozzles, 24 suction chambers, 25 diffuser pipes, 26 wireways.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1 and Figure 2, a kind of measurement CO
2the device of flooding produced liquid well head throttling effect coefficient, can simulated oil gas field well head flow reduction conditions in the lab, measures CO
2to drive in oil well produced fluid well head throttling process temperature drop before and after throttling valve.This device comprises the experiment circuit being about 20m, internal diameter of the pipeline 26mm, bearing capacity 10MPa, adopts the manufacture of corrosion-resistant 316L type stainless steel, can resistance to CO
2corrosion.Experimental provision is mainly divided into gassy system, oil-water system, commingled system, throttling and recording geometry, piece-rate system, temperature control system six part; Specific as follows:
Commingled system comprises an air and liquid mixer 9, it comprises suction chamber 24, described suction chamber 24 is provided with nozzle 23, wireway 26 and diffuser pipe 25, and described nozzle 23 is connected with oil-water system, and the profit of oil-water system enters into suction chamber by nozzle 23; Described wireway 26 is connected with gassy system, and the gas of gassy system enters suction chamber 24 by wireway 26; Gas liquid mixture is discharged by diffuser pipe 25.Liquid sprays from nozzle with high speed, when swiftly flowing liquid is by suction chamber, can form vacuum at suction chamber, suck a large amount of gas by wireway, after gas enters mixing chamber, at trunnion, place acutely mixes with liquid, form gas liquid mixture, discharged by anemostat.
Wherein, gassy system is by CO
2gas cylinder and N
2gas cylinder, gas buffer tank 6, gas vortex shedding flow meter 7, high-pressure stop valve 8 and gas cylinder variable valve 2, gas cylinder variable valve 3 form; Two described gas cylinders are connected with gas buffer tank 6, and described gas buffer tank 6 is connected with the entrance of commingled system, at CO
2gas cylinder and N
2the pipeline that the pipeline that gas cylinder is connected with gas buffer tank 6, gas buffer tank 6 are connected with commingled system is equipped with gas meter, variable valve, pressure transducer and temperature sensor.
Oil-water system comprises a storage tank 1, after described storage tank 1 tandem high pressure stop valve 17, supercharge pump 18, liquid flowmeter 20 and high-pressure stop valve 19, is connected with commingled system.
Supercharge pump 18 exit adopts recirculatory pipe to be connected in storage tank 1, and recirculatory pipe is connected with high-pressure stop valve 22.
Throttling and recording geometry comprise the transfer pipeline along oil gas, high pressure resistant see-through section 15 after being arranged on the high-pressure stop valve 10 on mixed transportation pipeline, safety valve 21, high pressure resistant see-through section 11, high-pressure throttle 13 and valve successively.
Be respectively arranged with dismountable reducing pipeline section 12,14 before and after high-pressure throttle 13, described reducing pipeline section is provided with visual window, by transparent section mobility status before and after the shooting of high-speed camera instrument.
Reducing pipeline section 12,14 is also provided with pressure and temperature sensor.
Piece-rate system is made up of atmospheric gas liquid/gas separator, centrifugal pump, vacuum pump and variable valve; Atmospheric gas liquid/gas separator herein and storage tank 1 are same parts.
Temperature control system is become with local Heater group by storage tank electrical heating facility.
In commingled system, the static energy of fluid, according to the principle of Venturi tube, is converted into kinetic energy by air and liquid mixer, and the material that another part of then carrying under one's arms enters from arm enters in mixing tube together and mixes.It is made up of nozzle, suction chamber, diffuser pipe three part, liquid sprays from nozzle with high speed, when swiftly flowing liquid is by mixing chamber, vacuum can be formed at mixing chamber, suck large quantity of air by wireway, after air enters mixing chamber, at trunnion, place acutely mixes with liquid, form gas liquid mixture, discharged by anemostat.Unique mixed air vessel's design, powerful liquid stream and gas and vapor permeation spray, and make to stir, completely, the bubble of generation is many and fine and smooth.This makes it possible to simulate the Dispersed Flows in field produces or bubble flow, the generation of control slug flow.
In piece-rate system, separation vessel plays recast and uses.First, it is storage tank, for containing oil-water mixture; Secondly, the effect of well heater is played.Separator bottom has heating jacket can carry out temperature control to liquid, makes temperature simulation temperature of incoming flow before valve.3rd, with stirrer in tank body, profit can be made fully to mix at this.Therefore the effect of oil-water mixer is played.Finally, the effect of gas-liquid separation is played.By optimal design, obtain the suitable volumes of separation vessel; Consider in the process of stirring that having portion gas is dissolved in liquid again, an external huge discharge vacuum pump simultaneously, make to keep negative pressure in tank when testing, gas is got rid of in time.So just can in same device, complete oily mixing wastewater with air, heating and be separated.
In experimentation, in order to prevent super high pressure accident, adopt pressure in safety valve regulation and control circuit.If there is pipeline superpressure, the automatic take-off of safety valve, gas enters air by blow-down pipe security of system.
In experimentation, in order to liquid flow pattern and phenomenon before and after observational study throttling valve, each installation high pressure transparent window before and after valve.
In experimentation, in order to effectively control fluid flow, backflow is adopted to be connected in separation vessel at pump discharge place.
In experimentation, before and after valve, adopt multiple high-precision pressure temperature sensor to obtain relevant flow parameter respectively.
In experimentation, to be brought about the desired sensation flow quantity by liquid flowmeter, gas flow measuring, calculate gas liquid ratio; Force value before and after valve is obtained by the pressure transducer before and after sending out; Temperature before and after valve is recorded by temperature sensor; Water percentage, gas group gradation parameter can be obtained simultaneously.This makes it possible to calculate the throttling effect coefficient in the heterogeneous throttling process of complex fluid:
Experiment flow is described below:
Profit first makes fluid temperature control in experimental temperature by the heating jacket stirred in fully mixed merga pass storage tank in storage tank (that is separation vessel), then through supercharge pump 18 supercharging, after flowmeter 20 measures, arrives air and liquid mixer 9; Carbon dioxide and nitrogen are filled with in surge tank 6 respectively from gas cylinder, more fully mix with liquid stream at air and liquid mixer 9 after flowmeter 7 measures; Oil gas water enters longer mixed transportation pipeline and fully carries out heat interchange afterwards, respectively by glass vision panel 11, through critical piece high-pressure throttle 13, by high pressure transparent section 15 after throttling, completes throttling process.Wherein be respectively arranged with dismountable reducing pipeline section before and after throttling valve, by transparent section mobility status before and after the shooting of high-speed camera instrument.Finally, oil gas water enters separation vessel 1, and gas is directly emptying, and liquid enters pump circulation again.
Concrete computing method are as follows:
1. to be brought about the desired sensation flow quantity by liquid flowmeter, gas flow measuring, calculate gas liquid ratio;
2. obtain force value before and after valve by the pressure transducer before and after valve; Temperature before and after valve is recorded by temperature sensor; Water percentage, gas group gradation parameter can be obtained simultaneously;
3. this makes it possible to calculate the throttling effect coefficient in the heterogeneous throttling process of complex fluid:
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (8)
1. measure CO for one kind
2the device of flooding produced liquid well head throttling effect coefficient, it is characterized in that: comprise oil-water system and gassy system, described oil-water system sends into commingled system after the profit temperature of its inside regulates by temperature control system, also commingled system is sent into after gas mixes by the gassy system simultaneously, described commingled system sends into Separate System of Water-jet by after profit and gas and vapor permeation by mixed transportation pipeline, and is provided with throttling and recording geometry on described mixed transportation pipeline; Profit after gas-liquid separation is sent into oil-water system by described Separate System of Water-jet again, carries out next one circulation.
2. measure CO as claimed in claim 1
2the device of flooding produced liquid well head throttling effect coefficient, it is characterized in that: described gassy system comprises gas cylinder, gas buffer tank, gas flow take into account variable valve, described gas cylinder is connected with gas buffer tank, described gas buffer tank is connected with the entrance of commingled system, and the pipeline that the pipeline be connected with gas buffer tank at gas cylinder, gas buffer tank are connected with commingled system is equipped with gas meter, variable valve, pressure transducer and temperature sensor.
3. measure CO as claimed in claim 1
2the device of flooding produced liquid well head throttling effect coefficient, is characterized in that: described oil-water system comprises a storage tank, after described storage tank series boosting pump, fluid flow take into account variable valve, is connected with commingled system.
4. measure CO as claimed in claim 3
2the device of flooding produced liquid well head throttling effect coefficient, is characterized in that: described booster pump outlet place adopts recirculatory pipe to be connected in storage tank, and recirculatory pipe is connected with high-pressure stop valve.
5. measure CO as claimed in claim 1
2the device of flooding produced liquid well head throttling effect coefficient, it is characterized in that: described commingled system comprises an air and liquid mixer, it comprises suction chamber, described suction chamber is provided with nozzle, wireway and diffuser pipe, described nozzle is connected with oil-water system, and the profit of oil-water system enters into suction chamber by nozzle; Described wireway is connected with gassy system, and the gas of gassy system enters suction chamber by wireway; Gas liquid mixture is discharged by diffuser pipe.
6. measure CO as claimed in claim 1
2the device of flooding produced liquid well head throttling effect coefficient, is characterized in that: described throttling and recording geometry comprise high-pressure throttle, is provided with high pressure transparent section in the front and back of described high-pressure throttle.
7. measure CO as claimed in claim 6
2the device of flooding produced liquid well head throttling effect coefficient, is characterized in that: be respectively arranged with dismountable reducing pipeline section before and after described high-pressure throttle, and described reducing pipeline section is provided with visual window, by transparent section mobility status before and after the shooting of high-speed camera instrument.
8. measure CO as claimed in claim 7
2the device of flooding produced liquid well head throttling effect coefficient, is characterized in that: on described reducing pipeline section, be in series with pressure and temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041093.9U CN205157480U (en) | 2015-12-11 | 2015-12-11 | Measure device that CO2 drove extraction liquid well head throttling effect coefficient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041093.9U CN205157480U (en) | 2015-12-11 | 2015-12-11 | Measure device that CO2 drove extraction liquid well head throttling effect coefficient |
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| CN201521041093.9U Expired - Fee Related CN205157480U (en) | 2015-12-11 | 2015-12-11 | Measure device that CO2 drove extraction liquid well head throttling effect coefficient |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548247A (en) * | 2015-12-11 | 2016-05-04 | 中国石油大学(华东) | Apparatus and method for measuring throttling effect coefficient of high-pressure complex fluid |
| WO2021088827A1 (en) * | 2019-11-04 | 2021-05-14 | 中国石油大学(华东) | Foam fluid performance and defoaming separation effect testing experimental apparatus and method |
-
2015
- 2015-12-11 CN CN201521041093.9U patent/CN205157480U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548247A (en) * | 2015-12-11 | 2016-05-04 | 中国石油大学(华东) | Apparatus and method for measuring throttling effect coefficient of high-pressure complex fluid |
| CN105548247B (en) * | 2015-12-11 | 2018-04-24 | 中国石油大学(华东) | A kind of device and method for measuring high pressure complex fluid throttle effect coefficient |
| WO2021088827A1 (en) * | 2019-11-04 | 2021-05-14 | 中国石油大学(华东) | Foam fluid performance and defoaming separation effect testing experimental apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161211 |