CN109296343A - A kind of gas well mining technology assessment system integration and method - Google Patents
A kind of gas well mining technology assessment system integration and method Download PDFInfo
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- CN109296343A CN109296343A CN201811007494.0A CN201811007494A CN109296343A CN 109296343 A CN109296343 A CN 109296343A CN 201811007494 A CN201811007494 A CN 201811007494A CN 109296343 A CN109296343 A CN 109296343A
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- 238000005065 mining Methods 0.000 title claims abstract description 112
- 238000005516 engineering process Methods 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 59
- 230000010354 integration Effects 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 172
- 238000000926 separation method Methods 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims description 285
- 239000012530 fluid Substances 0.000 claims description 37
- 238000002474 experimental method Methods 0.000 claims description 29
- 239000012071 phase Substances 0.000 claims description 27
- 238000011156 evaluation Methods 0.000 claims description 24
- 239000007791 liquid phase Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 14
- 238000004364 calculation method Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 10
- 239000006260 foam Substances 0.000 claims description 8
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- 238000007599 discharging Methods 0.000 claims description 6
- 239000007792 gaseous phase Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 241000521257 Hydrops Species 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
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- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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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
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Abstract
The invention discloses a kind of gas well mining technology assessment system integration and methods, the system integration is by five kinds of gas well mining technology assessment system integrations in set of system, including feeder, liquid feed device, mining technology assessment device and gas treatment equipment and liquid handling device；The gas well mining technology assessment method is made of cyclone separator gas-liquid separation efficiency, critical liquid tolerance, the liquid-gas jet pump efficiency of pump, the Gas-liquid jet pump four kinds of gas well mining technology assessment methods of the efficiency of pump taken of gas well.The present invention can reduce cost of investment, improve the success rate of the mining process unit of field application, play a significant role to gas well steady production.
Description
Technical field
The present invention relates to field of oil development more particularly to the gas well mining technology assessment system integration and methods.
Background technique
In oilfield exploitation procedure, gas well moisture content can constantly rise, and cause Wellbore of Gas Wells hydrops even water logging stop-spraying,
Being continuously increased for gas well water yield constitutes serious threat to the production of natural gas, and shaft bottom hydrops will cause gas well gas production
It reduces and even stops production, influence the Efficient Development in gas field；In the oil well of some high gas-liquid ratios, higher gas liquid ratio affects machine and adopts
The normal operation of equipment.Current solution is mainly to continue the production of gas well using some liquid discharging gas producing techniques, these
Liquid discharging gas producing technique mainly include underground gas-liquid point adopt, vortex effluent gas production, gaslift, foam drainage gas recovery, jet stream etc..Gas-liquid point
Excavating technology mainly carries out high-efficiency gas reservoir by downhole rotational-flow separator to realize；Vortex effluent gas production is changed by vortex tool
Fluid fluidised form, reducing flow resistance, gas is critical to take liquid speed degree to improve；Gaslift provides power by gas to realize well liquid
Lifting, foam drainage gas recovery by chemical agent mixed with liquid after foam theory, realize the reduction of fluid density, Jin Ergai
Become critical and takes liquid speed degree；Jet stream carries out efficient production of the energy conversion realization to gas-liquid to downhole fluid by jet pump principle.
The exploitation of underground liquid discharging gas producing technique is developed rapidly in oil/gas well production process at present, but lacks corresponding technology assessment
Method, and in terms of the quality of its application effect directly determines the success or failure of field application, especially oil field development at sea, compared with
High operation and maintenance cost require technique to guarantee success rate as far as possible.Current existing technique mainly leans on experience or numerical value
Analogue technique carries out theory analysis to predict application effect, and prediction result and the possible difference of actual result are larger, cause to repeat to make
Industry influences to produce.
The gas well mining technology assessment system integration and method are to pass through mould on the basis of gas well mining technology assessment method
The liquid discharging gas producing technological experiment of quasi- conditions down-hole obtains technology assessment parameter, it can be achieved that a variety of underground liquid discharging gas producing technologies
Effect assessment has important directive significance to natural petroleum gas field.In existing test platform, patent in the prior art
Document CN106869863A discloses a kind of gas well Life cycle technological experiment system, which can carry out the full life of gas well
Cycle process simulation and engineering experiment, but system needs are tested by technological experiment well and complete to evaluate, for not having
There is the case where experiment well to will be unable to realize.Patent document CN 106089190A discloses a kind of oil-extracting screw pump solid-liquid-gas three phase
Ground simulating device and method is flowed, which can realize simulation actual formation solid-liquid-gas three phase ratio, make screw pump pump efficiency
The advantages that test result is more accurate, but the device mainly solves existing device can only realize single-phase and two-phase medium simulation
The problem of experiment, not can solve the two phase flow device evaluation of existing gas well.Though patent document CN204142497U in the prior art
So be related to fluidic device evaluation experimental, but the patent be carried out for high speed, high-performance naval vessel underwater thrust measurement test it is flat
Platform；Patent CN103410718A is related to liquid-gas jet pump and performance testing platform, but it is primarily directed to industrial waste gas processing side
The claim of face progress waste gas absorption.Patent CN106869863A is related to a kind of gas well Life cycle engineer testing system,
System solves the problem the operation techniques such as induced flow drain, water pumping gas production, downhole choke, gas well well workover during underground work always
The problem of cannot achieve parameter optimization and compliance test result in default of necessary test platform, can carry out the full Life Cycle of gas well
Drain, low-pressure gas well induced flow drain, water pumping gas production, downhole choke, well workover after phase processing simulation and engineering test, including gas well pressure
The construction technologies such as technique proving test and job parameter optimization and Operating Pressure, continuous oil pipe operation processing simulation and examination
It tests, but the process requirement realizes that cost input is larger by test well, work operations amount is larger.Patent CN204142497U
It relates to a kind of test bed Liquid-Gas Jet Pump Perfqrmance that can carry out of liquid gas two-phase mixtures jet stream propulsive thrust to test, but the patent
Applied to the pharmaceuticals industry for absorbing exhaust gas by jet pump.
Test battery platform is developed respectively for the gas well mining kinds of processes of natural petroleum gas field exploitation, both will cause
The waste of cost, which has, can make test platform utilization rate insufficient, therefore develops and a set of can take into account a variety of gas well minings technology assessment side
Method is of great practical significance to oil-gas field development.
Summary of the invention
In order to solve the problems in the prior art, the present invention provides a kind of gas well mining technology assessment system integration and side
Method, solution need to develop test battery platform respectively to gas well mining technique application effect appraisal kinds of processes in the prior art,
The problem of cost waste and test platform utilization rate deficiency.
The technical scheme is that a kind of gas well mining technology assessment system, comprising: data acquisition and control system,
Feeder, liquid feed device, mining technology assessment device, gas concentration unit, liquid withdrawal system, gas collection tank, liquid storage
Tank, horizontal type gas and liquid separator, connecting pipeline and valve, the mining technology assessment device upstream connection feeder and feed flow
Device, downstream connection gas-liquid separator, liquid withdrawal system and gas body recyclable device；Gas phase is passed through mining work by feeder
Skill evaluating apparatus gas entrance is delivered to mining technology assessment device, and liquid feed device enters liquid phase by mining technology assessment device liquid
Mouth is transported to mining technology assessment device, and after mining technology assessment device, the gas containing a small amount of liquid phase enters gas and returns
Receiving apparatus, the liquid containing a small amount of gas phase enters liquid withdrawal system, after gas-liquid mixture enters horizontal type gas and liquid separator separation
Main gas phase enters gas concentration unit, and main liquid phase enters liquid withdrawal system；Gas buffer point in gas concentration unit
Enter gas collection tank from rear, is back to fluid reservoir after Metering；Enter after fluid cushion separation in liquid withdrawal system
Liquid withdrawal system, gas phase enter the storage of gas collection tank；The number such as flow, pressure, temperature of gas-liquid two-phase involved in experiment
According to passing through the real-time setup parameter of data acquisition and control system and acquiring data, each component part is fixed on the pedestal of certain area
On.
The mining technology assessment device is made of visual control device, high-definition camera, mining tool.
The mining technology assessment device can experimental demand replace mining tool, pass through data collection and control
System comments entrance tolerance, entrance liquid measure, outlet tolerance, the measurement for exporting liquid measure experiment parameter in conjunction with gas well mining technique
The evaluation of valence method realization gas well mining technique.
The mining tool are as follows: vortex effluent gas production tool, liquid-gas jet pump, Gas-liquid jet pump, gas lift liquid drainage gas production
Tool and foam drainage gas recovery simulation tool.
A kind of gas well mining technology assessment method, it is different according to the mining technique of evaluation, it is made of following several method:
Method one: downhole rotational-flow separator gas-liquid separation efficiency；
Method two: gas well is critical to take liquid tolerance；
Method three: the liquid-gas jet pump efficiency of pump；
Method four: Gas-liquid jet pumps the efficiency of pump.
Downhole rotational-flow separator calculation formula is as follows in the evaluation method one:
η is cyclone separator gas phase separative efficiency, carries out the rotation of gas well gas-liquid by the gas well mining technology assessment system integration
Gaseous phase outlet gas output and separator liquid-phase outlet gas output are calculated after flow separation simulated experiment measurement separation；Wherein,
Qg(d)For gaseous phase outlet gas output after separation；Qg(l)For separator liquid-phase outlet gas output.
Critical to take liquid air volume calculation formula as follows for gas well in the evaluation method two:
υtLiquid speed degree is taken for minimum critical, gas well foam drainage gas recovery is carried out by the gas well mining technology assessment system integration
Evaluation experimental and gaslift evaluation experimental measure the most abortion gas that the gas in different temperatures, pressure and caliber continuously takes liquid respectively
Amount is to be calculated；Wherein, qcFor the minimum gas production of liquids continuous removal；T is temperature；P is pressure；A is tubing string inner section
Product；Z is the deviation factor for gas under the conditions of p, T.
Gas-gas jet pump efficiency of pump calculation formula is as follows in the evaluation method three:
η is the pump efficiency of liquid-gas jet pump, carries out the evaluation of liquid-gas jet pump by the gas well mining technology assessment system integration
Experiment measures power fluid pressure, suction pressure, outlet pressure, power fluid mass flow and suction airflow amount to calculate
It arrives；Wherein, p1Indicate power fluid pressure；p2Expression is inhaled into gas pressure；p3Indicate outlet pressure；Q1Indicate power liquid stream
Amount；Q2Expression is inhaled into gas mass flow.
Gas-liquid jet pump efficiency of pump calculation formula is as follows in the evaluation method four:
η is the pump efficiency of Gas-liquid jet pump, carries out Gas-liquid jet pump evaluation by the gas well mining technology assessment system integration
Experiment measurement sucking liquid mass flow, power gas mass flow, jet pump outlet mixture stream pressure, jet stream pump intake are inhaled
Enter fluid pressure and power gas temperature to be calculated；Wherein, U indicates jet coefficient；GlFor the mass flow for being inhaled into liquid,
kg/d；GgIndicate power gas mass flow, kg/d；pmixJet pump outlet mixture stream pressure, MPa；pinJet stream pump intake quilt
Suck fluid pressure, MPa；ρLTo be inhaled into fluid density, kg/cm3；cpLevel pressure thermal capacitance, J/ (kg*K)；TpowFor power gas temperature
Degree, K；K is adiabatic exponent.
The beneficial effects of the present invention are: in the present invention, it, can answering different mining techniques by mining technology assessment method
The evaluation and detection that system is made of effect, to instruct research and production.
In the present invention, mining technology assessment method is realized by the system integration of mining technology assessment, by by a variety of rows
Excavating technology evaluating apparatus is integrated, and can reduce device occupied space to the greatest extent, saves device deployment cost, realizes warp
The maximization for interests of helping.
In the present invention, the experimental tool replaced in gas well mining technology assessment device can be to different gas well mining tools
Underground use environment is simulated, and the operation readiness of mining tool is reached.
Detailed description of the invention
Fig. 1 is experimental system schematic diagram of the present invention；
Fig. 2 is each mining technology assessment schematic device of gas well mining technology assessment device；It (a) is vortex mining evaluation dress
It sets, (b) is foam mining evaluating apparatus, (c) be gaslift mining evaluating apparatus, (d) be gas-liquid separation mining evaluating apparatus, (e)
For jet pump mining evaluating apparatus；
In figure: 1, data acquisition and control system, 2, gas compressor, 3, feeder, 4, gas conditioner, 5, gas
Heater, 6, valve, 7, gas flowmeter, 8, pressure gauge, 9, valve, 10, mining technology assessment device, 11, fluid reservoir, 12,
Valve, 13, plunger pump, 14, liquid feed device, 15, liquid regulator, 16, liquid heater, 17, valve, 18, fluid flowmeter,
19, pressure gauge, 20, valve, 21, liquid withdrawal system, 22, buffer tank, 23, tank gage, 24, monitor, 25, valve, 26, stream
Meter, 27, pressure gauge, 28, valve, 29, gas-liquid separator, 30, valve, 31, gas collection tank, 32, muffler, 33, gas
Recyclable device, 34, buffer tank, 35, tank gage, 36, monitor, 37, valve, 38, flowmeter, 39, pressure gauge, 40, valve, A,
Mining technology assessment device gas entrance, B, mining technology assessment device liquid entrance；C, the main gas phase of mining technology assessment device goes out
Mouthful, D, the outlet of mining technology assessment device main liquid phase, E, bubble row's medicine-pouring port, F, gas lift valve, I, jet stream Pump Suction Nozzle, P, jet stream
Pump power fluid inlet.
Specific embodiment
For that can further appreciate that summary of the invention of the invention, feature and effect, following embodiment is enumerated, it should be appreciated that these
Examples are only for illustrating the present invention and not for limiting the scope of the present invention.
Shown in referring to Fig.1, a kind of gas well mining technology assessment experiment porch is filled by data acquisition and control system 1, gas supply
Set 3, gas well mining technology assessment device 10, fluid reservoir 11, liquid feed device 14, liquid withdrawal system 21, valve 28, gas-liquid separation
Device 29, gas collection tank 31,32 liquid withdrawal system of gas concentration unit composition.
The liquid feed device 14 valve-embedded 12, plunger pump 13, plunger pump 13 connect liquid regulator 15, and liquid is adjusted
15 internal heater 16 of device, valve 17, flowmeter 18, pressure gauge 19,15 downstream connection gas well mining technique of liquid regulator are commented
The port D of valence device 10；Feeder 3 is built-in with gas compressor 2, and gas compressor 2 connects gas conditioner 4, gas tune
4 internal heater 5 of device, valve 6, flowmeter 7, pressure gauge 8 are saved, gas conditioner 4 connects gas well mining technology assessment device 10
Port C；The 10 outlet end C connecting valve 28 of gas well mining technology assessment device and valve 9, valve 28 connect liquid and return
Receiving apparatus, valve 9 connect gas-liquid separator, and gas-liquid separator connects gas concentration unit 33, gas well mining technology assessment device
10 liquid outlet end D connecting valves 40, valve 40 connect gas concentration unit 33, liquid withdrawal system 21, gas concentration unit 33
With horizontal type gas and liquid separator 29；Liquid withdrawal system 21 valve-embedded 20, buffer tank 22 and the monitor 24, described is slow
Tank 22 is deposited with tank gage 23, monitor 24 valve-embedded 25, flowmeter 26 and the pressure gauge 27；The gas recycling
Buffer tank 34 built in device 33,34 downstream connection muffler 32 of buffer tank and fluid reservoir 11,34 upstream of buffer tank connect monitor
36, monitor 36 valve-embedded 37, flowmeter 38 and the pressure gauge 39, gas concentration unit upstream connect gas well mining work
Skill evaluating apparatus 10 and horizontal type gas and liquid separator 29,29 gas of the gas-liquid separator outlet connection gas concentration unit 33, crouch
29 liquid of formula gas-liquid separator outlet connection liquid withdrawal system 21；The 11 downstream connection liquid feed device 14 of fluid reservoir, liquid storage
11 upstream of tank connects liquid withdrawal system 21 and gas concentration unit 33；The gas collection tank 31 connects gas concentration unit
33, horizontal type gas and liquid separator 29 and liquid withdrawal system 21；The data acquisition and control system acquires and controls in real time confession
Valve, flowmeter, pressure gauge in liquid device 14, feeder 3, liquid withdrawal system 21, gas concentration unit 33 and valve 28
Flow, switch aperture, temperature and pressure parameter.
Embodiment 1: downhole rotational-flow separator gas-liquid separation Efficiency Method；
Downhole rotational-flow separator is gone out by gaseous phase outlet gas output after experiment measurement separation and separator liquid phase
Mouth gas output is calculated, and asks calculation formula as follows:
Wherein, η is cyclone separator gas phase separative efficiency；Qg(d)For gaseous phase outlet gas output after separation；Qg(l)For separator
Liquid-phase outlet gas output.
Experiment: installation gas-liquid separator is in gas well mining technology assessment device 10；Close valve 9.Start liquid feed device
Plunger pump 13 in 14, liquid is delivered to the progress of liquid regulator 15 fluid temperature by the pump of plunger pump 13, pressure is adjusted and is conveyed
To gas well mining technology assessment device 10, while starting the gas compressor 2 in feeder 3, gas compressor 2 is defeated by gas
It send to the progress gas temperature of gas conditioner 3 and pressure and adjusts and be delivered to gas well mining technology assessment device 10, gas-liquid two-phase
It is mixed in gas well mining technology assessment device, mixed fluid is tested by gas-liquid separator, after experiment separation
Gas inflow gas recyclable device 33.
When experiment, by control valve 6 and valve 17, different gas-liquids when different gas liquid outlet split ratios are realized, and count
7 tolerance of recording flowmeter, 38 tolerance of 18 liquid measure of flowmeter, 26 tolerance of flowmeter and flowmeter, are corrected to standard for continuous data
Data carry out gas-liquid separation efficiency calculation under situation.
Embodiment 2: gas well is critical to take liquid tachometric method；
Gas well is critical to be taken liquid speed degree gas under the conditions of different temperatures, pressure and different hydrops is continuously taken by experiment measurement
The minimum gas production of liquid is calculated, and asks that calculate formula as follows:
Wherein, υtIndicate that minimum critical takes liquid speed degree；qcIt is the minimum gas production of liquids continuous removal；T is temperature；P is pressure
Power；A is tubing string inner section product；Z is the deviation factor for gas under the conditions of p, T.
Experiment: installation mining tool airlift unit starts in liquid feed device 3 in gas well mining technology assessment device 10
Plunger pump 13, plunger pump 13 pump by liquid is delivered to liquid regulator 15 carry out fluid temperature, pressure adjust, after adjusting liquid into
Enter gas well mining technology assessment device 10, while starting the gas compressor 2 in feeder 14, gas compressor 2 is by gas
It being delivered to gas conditioner 3 and carries out gas temperature and pressure adjusting, gas enters gas well mining technology assessment device 10 after adjusting,
Gas phase carries out liquid phase in gas well mining technology assessment device 10, and enter gas-liquid separator 29 in, after separation gas phase into
Enter gas collection tank 31 after entering the decompression of gas concentration unit 33, noise reduction, the liquid phase after separation enters liquid withdrawal system 21 and subtracts
Enter fluid reservoir 11 after pressure.
When experiment, valve 28 and valve 40 are closed, by control valve 17, realizes different entrance liquid measures, and by adjusting
Valve 6 corresponds to tolerance, when stablizing carrying by tolerance into liquid measure in gas well mining technology assessment device 10, recording flowmeter 7
Tolerance, 38 tolerance of 18 liquid measure of flowmeter, 26 tolerance of flowmeter and flowmeter, by continuous data be corrected under the status of criterion data into
Row is critical to take the calculating of liquid speed degree.
Embodiment 3: liquid-gas jet pump efficiency of pump method；
Pass through experiment measurement jet pump power fluid pressure, suction pressure, outlet pressure, power flow quantity and sucking gas
Body flow is calculated, and asks that calculate formula as follows:
Wherein, η indicates the pump efficiency of liquid-gas jet pump；p1Indicate power fluid pressure；p2Expression is inhaled into gas pressure；p3Table
Show outlet pressure；Q1Indicate power flow quantity；Q2Expression is inhaled into gas flow.
Experiment: installation mining tool liquid-gas jet pump starts liquid feed device 14 in gas well mining technology assessment device 10
In plunger pump 13, liquid is delivered to the carry out fluid temperature of liquid regulator 15 by the pump of plunger pump 13, pressure is adjusted, after adjusting
Liquid enters gas well mining technology assessment device 10, while starting the gas compressor 2 in feeder 14, gas compressor 2
It delivers the gas to gas conditioner 3 and carries out gas temperature and pressure adjusting, gas enters gas well mining technology assessment after adjusting
Device 10, kinetic energy is supplied to gas phase by jet stream and carried out by liquid phase in gas well mining technology assessment device 10, and is entered
In the gas-liquid separator 29 on ground, gas phase enters gas collection tank 31 after entering the decompression of gas concentration unit 33, noise reduction after separation,
Liquid phase after separation enters after liquid withdrawal system 21 depressurizes and enters fluid reservoir 11.
When experiment, valve 28 and valve 40 are closed, opens valve 9, by control valve 17, and adjustment valve 6, works as entrance
When liquid measure stablizes carrying by tolerance in gas well mining technology assessment device 10,7 tolerance of recording flowmeter, 18 liquid measure of flowmeter, stream
Continuous data is corrected to data under the status of criterion and carries out the liquid-gas jet pump efficiency of pump by 38 tolerance of 26 tolerance of meter and flowmeter
It calculates.
Embodiment 4: Gas-liquid jet pumps efficiency of pump method；
Sucking liquid mass flow is measured by experiment, power gas mass flow, jet pump outlet mixture stream pressure, is penetrated
Stream pump intake is inhaled into fluid pressure and power gas temperature to be calculated, and asks calculation formula as follows:
Wherein, η indicates the pump efficiency of Gas-liquid jet pump；U indicates jet coefficient；GlFor the mass flow for being inhaled into liquid, kg/
d；GgIndicate power gas mass flow, kg/d；pmixJet pump outlet mixture stream pressure, MPa；pinJet stream pump intake is inhaled
Enter fluid pressure, MPa；ρLTo be inhaled into fluid density, kg/cm3；cpLevel pressure thermal capacitance, J/ (kgK)；TpowFor power gas temperature
Degree, K；K is adiabatic exponent.
Experiment: installation mining tool Gas-liquid jet pump starts liquid feed device 14 in gas well mining technology assessment device 10
In plunger pump 13, liquid is delivered to liquid heater 16 in liquid regulator 15 with the pump of plunger pump 13 and valve 17 carries out liquid
Temperature, pressure are adjusted, and liquid enters gas well mining technology assessment device 10 after adjusting, while starting the gas in feeder 3
Gas compressor 2, the gas heater 5 and valve 6 that gas compressor 2 delivers the gas in gas conditioner 4 carry out gas temperature
Degree and pressure are adjusted, and gas enters gas well mining technology assessment device 10 after adjusting, in gas well mining technology assessment device 10
Kinetic energy is supplied to gas phase by jet stream and carried out by liquid phase, is divided by the outlet of gas well mining technology assessment device 10 into gas-liquid
From in device 29, gas phase enters gas collection tank 31, the liquid phase after separation after entering the decompression of gas concentration unit 33, noise reduction after separation
Enter fluid reservoir 11 after depressurizing into liquid withdrawal system 21.
When experiment, valve 28 and valve 40 are closed, opens valve 9, by control valve 17, and adjustment valve 6, works as entrance
When tolerance is carried by liquid stabilising in gas well mining technology assessment device 10,7 tolerance of recording flowmeter, 18 liquid measure of flowmeter, stream
Continuous data is corrected to data under the status of criterion and carries out the liquid-gas jet pump efficiency of pump by 38 tolerance of 26 tolerance of meter and flowmeter
It calculates.
It is all using made by description of the invention and accompanying drawing content the foregoing is merely the preferred embodiment of the present invention
Several improvement or deformation, being applied directly or indirectly in other relevant technical fields, also should be regarded as protects in patent of the invention
It protects in range.
Claims (9)
1. a kind of gas well mining technology assessment system characterized by comprising data acquisition and control system, feeder, confession
Liquid device, mining technology assessment device, gas concentration unit, liquid withdrawal system, gas collection tank, fluid reservoir, horizontal type gas and liquid
Separator, connecting pipeline and valve, the mining technology assessment device upstream connection feeder and liquid feed device, downstream connect
Connect gas-liquid separator, liquid withdrawal system and gas body recyclable device；Gas phase is passed through mining technology assessment device by feeder
Gas entrance is delivered to mining technology assessment device, and liquid phase is transported to row by mining technology assessment device liquid entrance by liquid feed device
Excavating technology evaluating apparatus, after mining technology assessment device, the gas containing a small amount of liquid phase enters gas concentration unit, contains
The liquid of a small amount of gas phase enters liquid withdrawal system, and main gas phase enters after gas-liquid mixture enters horizontal type gas and liquid separator separation
Gas concentration unit, main liquid phase enter liquid withdrawal system；Enter gas after gas buffer separation in gas concentration unit
Collecting tank is back to fluid reservoir after Metering；Enter liquid withdrawal system after fluid cushion separation in liquid withdrawal system,
Gas phase enters the storage of gas collection tank；The data such as flow, pressure, the temperature of gas-liquid two-phase involved in experiment are acquired by data
And the real-time setup parameter of control system and data being acquired, each component part is fixed on the pedestal of certain area.
2. gas well mining technology assessment system according to claim 1, which is characterized in that the mining technology assessment dress
It sets and is made of visual control device, high-definition camera, mining tool.
3. gas well mining technology assessment system according to claim 2, which is characterized in that the mining technology assessment dress
Set can experimental demand replacement mining tool, by data acquisition and control system to entrance tolerance, entrance liquid measure, outlet
Tolerance, the measurement for exporting liquid measure experiment parameter, and combine the evaluation of gas well mining technology assessment method realization gas well mining technique.
4. gas well mining technology assessment system according to claim 3, which is characterized in that the mining tool are as follows: vortex
Liquid discharging gas producing tool, liquid-gas jet pump, Gas-liquid jet pump, gas lift liquid drainage gas production tool and foam drainage gas recovery simulation tool.
5. a kind of gas well mining technology assessment method, which is characterized in that it is different according to the mining technique of evaluation, by following several sides
Method composition:
Method one: downhole rotational-flow separator gas-liquid separation efficiency；
Method two: gas well is critical to take liquid tolerance；
Method three: the liquid-gas jet pump efficiency of pump；
Method four: Gas-liquid jet pumps the efficiency of pump.
6. gas well mining technology assessment method according to claim 5, which is characterized in that underground in the evaluation method one
Cyclone separator separative efficiency calculation formula is as follows:
η is cyclone separator gas phase separative efficiency, carries out gas well gas-liquid eddy flow point by the gas well mining technology assessment system integration
It is calculated from gaseous phase outlet gas output after simulated experiment measurement separation and separator liquid-phase outlet gas output；Wherein, Qg(d)For
Gaseous phase outlet gas output after separation；Qg(l)For separator liquid-phase outlet gas output.
7. gas well mining technology assessment method according to claim 5, which is characterized in that gas well in the evaluation method two
It is critical that take liquid air volume calculation formula as follows:
υtLiquid speed degree is taken for minimum critical, the evaluation of gas well foam drainage gas recovery is carried out by the gas well mining technology assessment system integration
Experiment and gaslift evaluation experimental measure the minimum gas production that the gas in different temperatures, pressure and caliber continuously takes liquid respectively
It is calculated；Wherein, qcFor the minimum gas production of liquids continuous removal；T is temperature；P is pressure；A is tubing string inner section product；z
For the deviation factor for gas under the conditions of p, T.
8. gas well mining technology assessment method according to claim 5, which is characterized in that gas-in the evaluation method three
Gas jet pump efficiency of pump calculation formula is as follows:
η is the pump efficiency of liquid-gas jet pump, carries out liquid-gas jet pump evaluation experimental by the gas well mining technology assessment system integration
Power fluid pressure, suction pressure, outlet pressure, power fluid mass flow and suction airflow amount are measured to be calculated；Its
In, p1Indicate power fluid pressure；p2Expression is inhaled into gas pressure；p3Indicate outlet pressure；Q1Indicate power flow quantity；Q2Table
Show and is inhaled into gas mass flow.
9. gas well mining technology assessment method according to claim 5, which is characterized in that gas-in the evaluation method four
Liquid jet pump efficiency of pump calculation formula is as follows:
η is the pump efficiency of Gas-liquid jet pump, carries out Gas-liquid jet by the gas well mining technology assessment system integration and pumps evaluation experimental
Measurement sucking liquid mass flow, power gas mass flow, jet pump outlet mixture stream pressure, jet stream pump intake are inhaled into liquid
Body pressure and power gas temperature are calculated；Wherein, U indicates jet coefficient；GlFor the mass flow for being inhaled into liquid, kg/
d；GgIndicate power gas mass flow, kg/d；pmixJet pump outlet mixture stream pressure, MPa；pinJet stream pump intake is inhaled
Enter fluid pressure, MPa；ρLTo be inhaled into fluid density, kg/cm3；cpLevel pressure thermal capacitance, J/ (kg*K)；TpowFor power gas temperature
Degree, K；K is adiabatic exponent.
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| CN111350487A (en) * | 2020-05-07 | 2020-06-30 | 东北石油大学 | Jet pump-double screw pump same-well injection-production combined lifting system and method |
| CN112412395A (en) * | 2020-12-01 | 2021-02-26 | 中国石油天然气集团有限公司 | High-pressure gas-liquid mixing injection control system |
| CN113504334A (en) * | 2021-06-18 | 2021-10-15 | 西安恩诺维新石油技术有限公司 | Pressurized annulus sampling analysis system and method for three-super gas well |
| CN114199530A (en) * | 2020-08-27 | 2022-03-18 | 中国石油化工股份有限公司 | Experimental device and method for evaluating jet swirl composite liquid discharge tool |
| CN114842699A (en) * | 2021-02-01 | 2022-08-02 | 中国石油天然气股份有限公司 | Under-pressure operation training system and under-pressure operation training method |
| CN116104454A (en) * | 2023-01-06 | 2023-05-12 | 东北石油大学 | Gas lift plunger drainage gas recovery performance evaluation device |
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Application publication date: 20190201 |