CN104234708B - A kind of multi-functional pit shaft oil gas water multiphase analogue experiment installation - Google Patents
A kind of multi-functional pit shaft oil gas water multiphase analogue experiment installation Download PDFInfo
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- CN104234708B CN104234708B CN201410461202.6A CN201410461202A CN104234708B CN 104234708 B CN104234708 B CN 104234708B CN 201410461202 A CN201410461202 A CN 201410461202A CN 104234708 B CN104234708 B CN 104234708B
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Abstract
The invention provides a kind of multi-functional pit shaft oil gas water multiphase analogue experiment installation, this device can be with the multiphase flow flow condition under the conditions of simulated oil air water single-phase, two-phase and three-phase respectively multiple in pit shaft inner tube and annular space, study its Flow Field Distribution and flow behavior, it may also be used for study HEAT TRANSFER LAW when single-phase, heterogeneous fluid flows in pit shaft inner tube with annular space；It is possible not only to realize the research work under the conditions of kinds of experiments, improves the utilization rate of experimental provision, and easy to operate, strong adaptability, it is widely used；Building up of this equipment will form a comprehensive pit shaft multiphase flow simulation experiment platform, is the large-scale pit shaft multiphase flow experiment system that a set of function is more complete.
Description
Technical field
The present invention relates to a kind of experimental provision, simulate particularly to a kind of multi-functional pit shaft oil gas water multiphase
Experimental provision, for simulated oil air water single-phase, two-phase and three-phase respectively in pit shaft inner tube and annular space
Multiple under the conditions of multiphase flow flow condition, study its Flow Field Distribution and flow behavior, it may also be used for grind
Study carefully HEAT TRANSFER LAW when single-phase and heterogeneous fluid flows in pit shaft inner tube with annular space.
Background technology
In oil and gas exploitation and transport, two-phase or multiphase flow phenomenon can be frequently encountered by drilling well,
When boring chance oil-gas reservoir and producing layer, in reservoir, the natural gas of output enters pit shaft and drilling fluid mixed, makes well
The biphase gas and liquid flow that in cylinder annular space, simple single-phase flow thickens.When flowing well recovers the oil, when the well of oil well
When mouth pressure is more than the saturation pressure of crude oil, well is sing-phase crude oil, when flowing bottomhole pressure (FBHP) is less than saturation pressure
Time, whole oil pipe is that oil gas is biphase.In oil reservoir is exploited, generally there is edge-bottom water, and in exploitation after
Phase, supplementing stratum energy frequently with the mode of water filling, gas injection and continue exploitation oil field, therefore fluid is from well
In end flow process earthward, oil gas water three phase mixture is typically found in pit shaft.When gas-lift production,
Gases at high pressure are continuously injected in oil pipe, make the liquid in oil pipe mix with the gases at high pressure of injection,
Form gas-liquid two-phase, reduce the density of fluid column, reduce the fluid column back pressure to shaft bottom, so that oil reservoir and well
Form enough producing pressure differentials at the end, and given rise to ground in wellbore annulus, then form ring
Air fluid two phase flow.Gases at high pressure are injected in annular space, then form biphase gas and liquid flow in pipe.Open in oil field
In Faing, when using pumping production, oil pumper drives the deep well pump of down-hole by sucker rod, makees the most past
Multiple motion, is evacuated to ground by liquid in well, and in well, liquid is empty by the annular between oil pipe and rod string
Between flow out ground, then formed annular space biphase gas and liquid flow.Additionally also has the gas-liquid two in under-balanced drilling technology
Phase flow problem, during oil-gas transportation, oil gas water multiphase problem in pipe etc., all refers to oil gas water
Biphase or Three-phase Flow law study.
As can be seen here, multiphase flow is theoretical critically important in oilfield process.Only its flowing of Accurate Prediction
Rule, guarantee equipment safety, run economically.Therefore, multiphase flow theoretical research had both had important
Learning value, have again engineering background widely.But a lot of scholars are at research two phase flow or many
Mutually during stream rule, the experimental system range of application of design construction compares limitation, and condition is the most perfect, it is impossible to
It is suitable for the multiphase flow research of multiple situation.Therefore a set of multi-functional comprehensive multiphase flow research experiment system is designed
System is necessary.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of multi-functional pit shaft
Oil gas water multiphase analogue experiment installation, is possible not only to realize the research work under the conditions of kinds of experiments, carries
The utilization rate of high experimental provision, and easy to operate, strong adaptability, it is widely used.Building up of this equipment will
Form a comprehensive pit shaft multiphase flow simulation experiment platform, be the large-scale well that a set of function is more complete
Cylinder multiphase flow experiment system.
To achieve these goals, the technical solution used in the present invention is:
A kind of multi-functional pit shaft oil gas water multiphase analogue experiment installation, including:
For providing the air supply system of the gas of constant flow rate；
For providing the water system of the water of constant flow rate；
For providing the oil supply system of the oil of constant flow rate；
The simulation wellbore hole system of the multiphase fluidflow state in simulation wellbore hole inner tube and annular space；
Be connected with described air supply system, water system and oil supply system for by described gas, water with
And at least two in oil carries out the gas-fluid mixing systems that mixes, the outlet of described gas-fluid mixing systems connects
Simulation wellbore hole system entry；
Be arranged at simulation wellbore hole system outlet for the mixed phase fluid flowing out pit shaft is carried out separating many
Phase-separation system；
And it is arranged at the parameter measurement system in simulation wellbore hole system.
Described air supply system includes air compressor 1, gas buffer tank 2, exsiccator 3, source nitrogen storage tank
The gas of 4, isolator 5 and filter 8, the gas outlet end of air compressor 1 and gas buffer tank 2
Arrival end connects, and the gas outlet end of source nitrogen storage tank 4 connects with the gas access end of gas buffer tank 2,
The gas outlet end of gas buffer tank 2 is connected by the gas access end with exsiccator 3 and is connected on pipeline
Be provided with air relief valve 18, the gas outlet end of exsiccator 3 communicate with the gas access end of isolator 5 and
Arranging filter 8 on connecting line, the gas outlet end of isolator 5 enters with the gas of gas-fluid mixing systems
Mouth end is connected and is provided with check-valves connecting on pipeline；
Described water system includes water tank 9, heat-exchanger pump 7 and water supply pump 12, is provided with interlayer in water tank 9,
Being classified as hot hydroecium and cold water chamber, the aqueous phase that hot hydroecium connects gas-fluid mixing systems by heat-exchanger pump 7 enters
Mouthful and be provided with flow regulating and controlling valve connecting on pipeline, cold water chamber connects gas-liquid by water supply pump 12 and mixes
The aqueous phase entrance of assembly system and be provided with flow regulating and controlling valve on pipeline connecting；
Described oil supply system includes fuel tank 10 and oil pump 11, and fuel tank 10 connects gas-liquid by oil pump 11 to be mixed
The oil phase entrance of assembly system and be provided with flow regulating and controlling valve on pipeline connecting.
Described simulation wellbore hole system includes the multi-section structure being vertically arranged on support, often saves by an outer tube
29 and an inner tube 28 being coaxial therewith the heart being positioned in outer tube 29 form, between adjacent segments, with connect
Flange is connected with connecting short section；
Described gas-fluid mixing systems includes three-phase mixer 14, three-phase mixer 14
Gas phase entrance connects the outlet of air supply system, and the oil phase entrance of three-phase mixer 14 connects oil supply system
Outlet, the aqueous phase entrance of three-phase mixer 14 connects the outlet of water system, and oil gas water three phase mixes
The mixed phase outlet of device 14 connects an interface of cross valve 1, in second interface of cross valve 1 connects
The bottom of pipe 28, the 3rd interface connects the bottom of outer tube 29, the entrance of the 4th interface water receiving case 9 and
Pollution discharge pond 27；
Described multi-phase separation system includes multiphase separator 20, solid collector 22, counterbalance valve 23 and four
Logical valve 2 21, an interface of cross valve 2 21 connects the top of inner tube 28, the second of cross valve 2 21
Individual interface connects the top of outer tube 29, cold water chamber's water outlet of the 3rd interface water receiving case 9 of cross valve 2 21
Pipeline, the 4th interface of cross valve 2 21 connects the mixed phase entrance of multiphase separator 20 and in connecting tube
Being provided with check-valves and solid collector 22 on road, the aqueous phase outlet of multiphase separator 20 is divided into two-way and divides
Not Lian Jie the hot hydroecium of water tank 9 and cold water chamber and be provided with flow regulating and controlling valve on pipeline connecting, many
The oil phase outlet of phase separator 20 is connected to fuel tank 10 and is provided with Flow-rate adjustment control connecting on pipeline
Valve, the gaseous phase outlet of multiphase separator 20 is connected on gas recovery system and connection pipeline be provided with back pressure
Valve 23.
It is provided with stop valve on each connection pipeline described.
Described parameter measurement system include temperature sensor 16, pressure transducer 17, differential pressure pick-up 26,
Fluid flowmeter 13, gas flowmeter 6 and voidage meter 24, wherein:
Described temperature sensor 16 is at least provided with in the company of: isolator 5 with three-phase mixer 14
On adapter road, on the connection pipeline of cold water chamber and three-phase mixer 14, hot hydroecium and oil gas water three
Phase blender 14 connect on pipeline, fuel tank 10 with on the connection pipeline of three-phase mixer 14,
Three-phase mixer 14 and cross valve 1 connect on pipeline, each joint of simulation wellbore hole system
Go up and on the connection pipeline of cross valve 2 21 and cold water chamber；
Described pressure transducer 17 is at least provided with in the connecting tube of: air compressor 1 with gas buffer tank 2
On road, source nitrogen storage tank 4 with on the connection pipeline of gas buffer tank 2, on gas buffer tank 2, gas
Surge tank 2 and exsiccator 3 connect on pipeline, the connection of isolator 5 and three-phase mixer 14
On pipeline, on the connection pipeline of cold water chamber and three-phase mixer 14, hot hydroecium and oil gas water three phase
Blender 14 connect on pipeline, fuel tank 10 with on the connection pipeline of three-phase mixer 14, oil
Air water three-phase blender 14 and cross valve 1 connect on pipeline, on each joint of simulation wellbore hole system
And on the connection pipeline of cross valve 2 21 and cold water chamber；
Described differential pressure pick-up 26 at least provided with in: at some differing heights of simulation wellbore hole system；
Described fluid flowmeter 13 is at least provided with in the connection of: cold water chamber with three-phase mixer 14
On pipeline, on the connection pipeline of hot hydroecium and three-phase mixer 14, fuel tank 10 and oil gas water three
Phase blender 14 connect on pipeline, on multiphase separator 20 and the connection pipeline of water tank 9 and heterogeneous
On the connection pipeline of separator 20 and fuel tank 10；
Described gas flowmeter 6 at least provided with on: the exsiccator 3 connection pipeline with isolator 5 and
On the connection pipeline of multiphase separator 20 and gas recovery system；
Described voidage meter 24 at least provided with in: at some differing heights of simulation wellbore hole system.
The present invention can also include video monitoring system, by being arranged in simulation wellbore hole system differing heights
Multiple video cameras 25 form.
The present invention can also include the data collecting system being connected with described parameter measurement system, described data
Acquisition system includes the data collecting card that same computer 30 connects, and data collecting card collects temperature sensor
16, pressure transducer 17, differential pressure pick-up 26, fluid flowmeter 13, gas flowmeter 6 and sky
It is uploaded to computer 30 after the data of gap rate meter 24.
Present invention additionally comprises relief valve 19, relief valve 19 at least provided with in: on gas buffer tank 2, many
On phase separator 20, on the connection pipeline of cold water chamber and three-phase mixer 14, hot hydroecium and oil
Air water three-phase blender 14 connect on pipeline, the connecting tube of fuel tank 10 and three-phase mixer 14
On road and on the connection pipeline of three-phase mixer 14 and cross valve 1.
Compared with prior art, the invention has the beneficial effects as follows:
The most powerful.
This device gathers multi-function in integral whole, can complete oil gas water single-phase, two-phase and three-phase pipe in or ring
Flowing experiment in shape space, the Bottomhole pressure of Study of Fluid and inventionannulus flow rule, also can complete oil gas
Water single-phase, two-phase and three-phase are with the heat transfer experiment of flowing in pipe and in annular space of multiple combination mode, research
Its mutual HEAT TRANSFER LAW.
Measure the most in real time.
This device, with automatic control system, realizes data by control panel and data acquisition software real-time
Measure and gather, and use sophisticated equipment both domestic and external and instrument and meter, make DATA REASONING the most reliable.
The most easy to operate.
This device can need to control the switching of valve according to experiment, changes the flow process of experiment, completes different merit
The experiment of energy.Simulation wellbore hole tubing string is detachable, replaceable various sizes of inner and outer tubes, it is possible to will thoroughly
Bright tubing string exchanges with stainless-steel tubing pillar, simultaneously convenient cleaning.
4. economy and durability.
This device pipeline connects makes every effort to brief, and takes into full account the requirements such as space, place and constructing operation, joint
Save space and consumptive material, it is thorough that functions of the equipments consider, energy-saving durable.
5. system extension.
Device extension New function is simple and convenient, can realize flowing and the heat transfer of various ways fluid various combination
Experiment.In system, tubing string (i.e. simulation wellbore hole) is that vertical in form is installed, and can be expanded to various ways.
During oil transportation, owing to course of conveying existing the impact of the factors such as surface relief, need to consider
Oil gas water is biphase or three-phase mixture is in level, inclination, the flowing of vertical all directions, it is therefore desirable to grind
Study carefully multiphase mixture flowing law in vertical tube, tipping tube, horizontal tube.Experimental provision can be loaded
The displacement system of shaft column, is designed with horizontal and vertical track, it is possible to achieve pipeline by level to
Vertically convert at any angle and position, thus completing the research of multi-angle pipeline flowing experiment.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Detailed description of the invention
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings with embodiment.
As it is shown in figure 1, this experimental provision mainly includes air supply system, water system, oil supply system, gas
Liquid mixing system, multi-phase separation system, simulation wellbore hole system, parameter test system, data collecting system
Deng.
1. air supply system
This system be primarily used to provide constant flow rate gas, and flow velocity and flow adjustable.Can be for
Nitrogen and two kinds of sources of the gas of air, can select according to experiment needs.Mainly include air compressor 1,
Gas buffer tank 2, exsiccator 3, source nitrogen storage tank 4, isolator 5 and filter 8 etc..Air compresses
The gas outlet end of machine 1 connects with the gas access end of gas buffer tank 2, the gas of source nitrogen storage tank 4
The port of export connects with the gas access end of gas buffer tank 2, and the gas outlet end of gas buffer tank 2 passes through
Connect with the gas access end of exsiccator 3 and be connected on pipeline and be provided with air relief valve 18, the gas of exsiccator 3
The body port of export communicates and arranges on connecting line filter 8 with the gas access end of isolator 5, isolation
The gas outlet end of device 5 is connected with the gas access end of gas-fluid mixing systems and is being connected on pipeline setting
There is check-valves.Source nitrogen can be provided by nitrogen making machine and nitrogen compressor.
Air compressor 1 is for providing the gaseous fluid in heterogeneous fluid.Gas buffer tank 2 is mainly used in
Stablizing of throughput, with pressure detecting, relief valve device.Conveying gas can be done by exsiccator 3
Dry, it is ensured that its moisture-free.Isolator 5 be mainly used in air-flow body enter before blender with liquid fluid every
From, prevent the fluid in blender from entering air-flow road.
Source of the gas is passed through in supply air line, is introduced into gas buffer tank 2, after steady pressure, then via being dried
Device 3 is dried, and by filter 8, utilizes stop valve to control the Push And Release of its pipeline, uses electricity
Dynamic flow control valve carries out gas flow control, enters gas-fluid mixing systems by isolator 5.
2. water system
This system be primarily used to provide constant flow rate liquid water, and flow velocity and flow adjustable.Permissible
For cold water and hot water, need to select according to experiment.Mainly include water tank 9, heat-exchanger pump 7 and water supply pump 12
Deng, water tank 9 being provided with interlayer, is classified as hot hydroecium and cold water chamber, hot hydroecium passes through heat-exchanger pump 7
Connect the aqueous phase entrance of gas-fluid mixing systems and be provided with flow regulating and controlling valve, cold water connecting on pipeline
Room connects the aqueous phase entrance of gas-fluid mixing systems by water supply pump 12 and is provided with flow connecting on pipeline
Adjusting control valve.
Water tank 9 is mainly used in the storage of the water before water pump, is provided with heating and temperature control facility in hot hydroecium, cold
Hydroecium is provided with cooling and temperature control facility, it is ensured that cold water and the hot water water temperature of offer are constant.Water tank
Two Room of 9 are respectively arranged with liquidometer, can conveniently observe level condition.Heat-exchanger pump 7 and water supply pump 12 with
Frequency-variable controller, can control its flow by controlling its rotating speed, and with electro connecting pressure gauge and safety
Valve duplicate protection, it is ensured that the safety of system.
Hot water is flowed out by hot hydroecium side, by stop valve, heat-exchanger pump 7 improves pressure, electric valve control
Making its flow, measured instrument enters hybrid system.Cold water is flowed out by cold water chamber side, by cut-off
Valve, is improved pressure by water supply pump 12, and electrodynamic valve controls its flow, and measured instrument enters gas-liquid mixed
System.
3. oil supply system
This system be primarily used to provide constant flow rate liquid oil, and flow velocity and flow adjustable.Mainly
Including fuel tank 10 and oil pump 11 etc., the oil phase that fuel tank 10 connects gas-fluid mixing systems by oil pump 11 enters
Mouthful and be provided with flow regulating and controlling valve connecting on pipeline.
Fuel tank 10 is mainly used in the storage of the simulated oil before oil pump 11, with heating and temperature control facility, permissible
Simulation shaft bottom oil temperature, temperature is set according to experiment needs.Fuel tank 10, equipped with liquidometer, can conveniently be seen
Examine oil surface level.Oil pump 11, with frequency-variable controller, can control its flow by controlling its rotating speed, and
With electro connecting pressure gauge and relief valve duplicate protection, it is ensured that the safety of system.
Oil phase is flowed out by fuel tank 10 flowline, by stop valve, oil pump 11 improves pressure, electrodynamic valve
Controlling its flow, measured instrument enters gas-fluid mixing systems.
4. gas-fluid mixing systems
This system is primarily used to supply is biphase with the oil gas water of feed flow circuit offer or three-phase uniformly mixes
Close, be passed through in simulation wellbore hole.Mainly include three-phase mixer 14 and some valves and instrument,
The gas phase entrance of three-phase mixer 14 connects the outlet of air supply system, three-phase mixer 14
Oil phase entrance connect the outlet of oil supply system, the aqueous phase entrance of three-phase mixer 14 connects water system
Outlet, the mixed phase outlet of three-phase mixer 14 connects an interface of cross valve 1, four-way
Second interface of valve 1 connects the bottom of inner tube 28, and the 3rd interface connects the bottom of outer tube 29, and the 4th
The entrance of individual interface water receiving case 9 and pollution discharge pond 27.Three-phase mixer 14 is with heating and temperature control
Facility, after making mixing, temperature can regulate in certain scope.
Open the stop valve on water supply line and check-valves, be then passed through aqueous phase；Open cutting on oil supply pipe
Only valve and check-valves, then be passed through oil phase；Open the stop valve on steam line and check-valves, be then passed through gas
Phase.Profit, air water, oil gas two-phase mixtures or oil gas water three phase mixing can be selected according to experiment needs.
Opening the stop valve on outlet conduit, fluid is passed through cross valve 1, can be entered by inner tube inlet pipeline 31
Enter inner tube 28, or entered outer tube 29 by annular space suction line 32.Cross valve 1 can realize its four
Interface is optionally combined connection, to reach conveniently to control fluid entrance inner tube 28 or outer tube 29, it is achieved single-phase
Or heterogeneous fluid pipe is interior or inventionannulus flow experiment.
5. multi-phase separation system
This system is mainly used in the separation of pit shaft port of export mixed phase fluid, and described multi-phase separation system includes
Multiphase separator 20, solid collector 22, counterbalance valve 23 and cross valve 2 21 etc., cross valve 2 21
An interface connect the top of inner tube 28, second interface of cross valve 2 21 connects the top of outer tube 29,
Hot hydroecium's outlet pipeline of the 3rd interface water receiving case 9 of cross valve 2 21, the 4th of cross valve 2 21
Individual interface connects the mixed phase entrance of multiphase separator 20 and is provided with check-valves and solid connecting on pipeline
Catcher 22, multiphase separator 20 aqueous phase outlet be divided into two-way connect respectively water tank 9 hot hydroecium and
Cold water chamber and be provided with flow regulating and controlling valve connecting on pipeline, the oil phase outlet of multiphase separator 20 is even
It is connected to fuel tank 10 and is provided with flow regulating and controlling valve, the gas phase of multiphase separator 20 connecting on pipeline
Outlet is connected on gas recovery system and connection pipeline be provided with counterbalance valve 23.
Multiphase separator 20 is biphase or three-phase material for separation oil and gas water, and equipment uses stainless steel system
Form, be designed with the form with clear scale, facilitate the observation of liquid level, and with tank level control system,
Keep constant liquid level.Upper end is designed with rustless steel and intubates, and connects counterbalance valve 23 and effusion meter, for gas
Discharge.Regulation counterbalance valve 23, by the pressure stability of separator in setting value, thus can ensure model pipe
Column outlet pressure is constant.Lower end is designed with aqueous phase and oil phase outlet and sewage draining exit, can be to the liquid of system
Discharge.Solid collector 22 is for the solid matter collected in experiment in heterogeneous fluid-mixing.
Oil gas water is single-phase or heterogeneous fluid is flowed out by inner tube outlet pipeline 34 or annular space outlet line 33, enters
Enter cross valve 2 21, after stop valve and check-valves, solid collector 22 remove solid constituent, enter
Entering multiphase separator 20, gas phase empties after separating after a stop valve and a counterbalance valve 23, water
Passing back into water tank 9 through a regulation valve, oil phase is back to fuel tank 10 through a regulation valve.
6. simulation wellbore hole system
In this system is mainly used in the pipe of the heterogeneous fluid in simulation wellbore hole inner tube and sleeve pipe and inventionannulus flow shape
State.Mainly include the multi-section structure being vertically arranged on support, often save and be positioned at by an outer tube 29 and one
The inner tube 28 being coaxial therewith the heart in outer tube 29 forms, between adjacent segments, short with adpting flange and connection
Joint is connected, and seals with sealing mechanism.
Pit shaft height about 10m, pipe nipple connects.The generally internal diameter 60-70mm of inner tube 28, outer tube 29
Internal diameter 110-130mm, can select according to actual needs.Inner tube 28 can be able to adjust with dismounting and change
Select different tube diameters.High pressure pit shaft need to be made with stainless steel material, can pressure more than 10MPa, at tube wall
On open transparent window with quartz glass to image and observing.Low pressure pit shaft can replace with lucite tube,
Pressure 1-4MPa, tubing is transparent, facilitates perusal.Pit shaft inner tube and outer concentric tube, right angle setting,
Fix with support, have platform, facilitate personal observations's experimental phenomena, and beneficially picture pick-up device is installed, well
Cylinder around needs to be provided with protective measure.
7. parameter test system
The ginsengs such as pressure in the main real-time measurement system of test system, temperature, differential pressure, voidage, flow
Number.Mainly include temperature sensor 16, pressure transducer 17, differential pressure pick-up 26, fluid flowmeter
13, the parts such as gas flowmeter 6, voidage meter 24.
Described temperature sensor 16 is at least provided with in the company of: isolator 5 with three-phase mixer 14
On adapter road, on the connection pipeline of cold water chamber and three-phase mixer 14, hot hydroecium and oil gas water three
Phase blender 14 connect on pipeline, fuel tank 10 with on the connection pipeline of three-phase mixer 14,
Three-phase mixer 14 and cross valve 1 connect on pipeline, each joint of simulation wellbore hole system
Go up and on the connection pipeline of cross valve 2 21 and cold water chamber；
Described pressure transducer 17 is at least provided with in the connecting tube of: air compressor 1 with gas buffer tank 2
On road, source nitrogen storage tank 4 with on the connection pipeline of gas buffer tank 2, on gas buffer tank 2, gas
Surge tank 2 and exsiccator 3 connect on pipeline, the connection of isolator 5 and three-phase mixer 14
On pipeline, on the connection pipeline of cold water chamber and three-phase mixer 14, hot hydroecium and oil gas water three phase
Blender 14 connect on pipeline, fuel tank 10 with on the connection pipeline of three-phase mixer 14, oil
Air water three-phase blender 14 and cross valve 1 connect on pipeline, on each joint of simulation wellbore hole system
And on the connection pipeline of cross valve 2 21 and cold water chamber；
Described differential pressure pick-up 26 at least provided with in: at some differing heights of simulation wellbore hole system；
Described fluid flowmeter 13 is at least provided with in the connection of: cold water chamber with three-phase mixer 14
On pipeline, on the connection pipeline of hot hydroecium and three-phase mixer 14, fuel tank 10 and oil gas water three
Phase blender 14 connect on pipeline, on multiphase separator 20 and the connection pipeline of water tank 9 and heterogeneous
On the connection pipeline of separator 20 and fuel tank 10；
Described gas flowmeter 6 at least provided with on: the exsiccator 3 connection pipeline with isolator 5 and
On the connection pipeline of multiphase separator 20 and gas recovery system；
Described voidage meter 24 at least provided with in: at some differing heights of simulation wellbore hole system.
Differential pressure pick-up 26 is mainly used in the differential pressure of measure analog pit shaft point-to-point transmission.Pressure transducer 17 is main
It is used for measuring in system pipeline in fluid pressure and pit shaft pressure everywhere.Temperature sensor 16 is used for surveying
Temperature everywhere in fluid temperature (F.T.) and simulation wellbore hole in amount system pipeline.Voidage meter 24 is mainly used in measuring
The true void fraction of heterogeneous fluid in wellbore tubulars.Gas flowmeter 6 and fluid flowmeter 13 are respectively used to
Measure gas and the flow of liquid fluid.The flow-control of gas can use intelligent electric control system to enter
Row accurately controls.Experimental system can use Particle Image Velocimetry (PIV) stream field to test,
Will appreciate that the VELOCITY DISTRIBUTION of gas, liquid, gas-liquid mixture.
This device is designed with camera monitoring system, camera monitoring system totally three set, main employing video camera 25,
It is separately mounted to pit shaft upper end, middle part and lower end, is used for being continuously shot downhole well fluid flowing picture, no
Only observable flowing flow pattern, also can assist PIV technical testing pit shaft flow field.
8. data collecting system
Data collecting system is connected with parameter measurement system, the data acquisition connected including same computer 30
Card, data collecting card collects temperature sensor 16, pressure transducer 17, differential pressure pick-up 26, liquid
It is uploaded to computer 30 after the data of effusion meter 13, gas flowmeter 6 and voidage meter 24.
Workflow can be shown on the interface of computer 30, in real time display each point parameter, it is achieved man-machine
Dialogue, computer controlled automatic flow.
The functional realiey process of experimental provision of the present invention is as follows:
This experimental provision can carry out the multiple multiphase flow research experiment in petroleum drilling and mining field.In experiment other
No pipeline is closed without exception, it is ensured that whole experimental system seals and do not reveals.
The valve related in the present invention is as follows:
V1-26, V42-44 are stop valve, V27-32 is electric flow adjusting control valve, V33-36
Be check-valves, V37-41 is blowoff valve.
1. oil gas water phasmajector is interior or inventionannulus flow is tested
Open valve V26, V9, open regulation valve V30, V31, open valve V10, V25, V23,
Opening check-valves V34, V36, start oil pump 11, oil phase passes through fuel feeding circuit, flows into cross valve 1,
Entered tubing string (i.e. inner tube 28) by inner tube inlet pipeline 31, inner tube outlet pipeline 34 pass through cross valve
2 21, enter discharge pipe through valve V25, V36 and be back to fuel tank, it is achieved oil phase single-phase flow is tested.
Open valve V17, V44, V8, open regulation valve V28, V32, open valve V10, V25,
V23, V43, open check-valves V33, V36, starts water supply pump 12, and aqueous phase passes through water supply line, stream
Enter cross valve 1, inner tube inlet pipeline 31 enter tubing string, inner tube outlet pipeline 34 pass through four-way
Valve 2 21, enters discharge pipe through valve V25, V36 and is back to water tank cold water chamber, it is achieved aqueous phase is single-phase
Flowing experiment.
Annular space suction line 32 is changed into, by annular space by above-mentioned single-phase experiment enters inner tube inlet pipeline 31
Outlet line 33 flows out, then realize the experiment of oil gas water single-phase inventionannulus flow.
2. the biphase pipe of oil gas water is interior or inventionannulus flow is tested
Open valve V17, V44, V8, open regulation valve V28, V32, open valve V10, V25,
V23, V43, open check-valves V33, V36, starts water supply pump 12, and aqueous phase passes through water supply line, enters
Enter three-phase mixer 14.Open valve V26, V9, open regulation valve V30, V31, open
Check-valves V34, starts oil pump 11, and oil phase passes through fuel feeding circuit, enters three-phase mixer 14.
Water-oil phase mixture flows into cross valve 1, inner tube inlet pipeline 31 enter tubing string, inner tube go out
Mouth pipeline 34, by cross valve 2 21, enters multiphase separator 20 through valve V25, V36, after separation
Oil phase and aqueous phase are back to fuel tank 10 and water tank 9 respectively, it is achieved water-oil phase circulates experiment.
Test as source of the gas using air, open valve V2, V4, V5, V7, open regulation valve
V27 and check-valves V35, air is supplied by air compressor 1, gas buffer tank 2 steady pressure, warp
Exsiccator 3, filter 8 and isolator 5, be transported to three-phase mixer 14.Open valve V17,
V44, V8, open regulation valve V28, V32, open valve V10, V25, V23, V43, open
Check-valves V33, V36, start water supply pump 12, and aqueous phase passes through water supply line, enters oil gas water three phase and mixes
Clutch 14.Air water two-phase mixture flows into cross valve 1, inner tube inlet pipeline 31 enter tubing string,
By inner tube outlet pipeline 34 by cross valve 2 21, enter multiphase separator 20 through valve V25, V36,
Opening V20 and counterbalance valve 23, gas phase emptying after separation, aqueous-phase reflux is to water tank, it is achieved air-water two phase flow
Dynamic experiment.
Open valve V26, V9, open regulation valve V30, V31, open valve V10, V25, V23,
Opening check-valves V34, V36, start oil pump 11, oil phase passes through fuel feeding circuit, enters oil gas water three phase
Blender 14.Test as source of the gas using air, open valve V2, V4, V5, V7, open and adjust
Joint valve V27 and check-valves V35, air is supplied by air compressor 1, gas buffer tank 2 steady pressure,
Drying device 3, filter 8 and isolator 5, be transported to three-phase mixer 14.Oil gas is biphase
Mixture flows into cross valve 1, inner tube inlet pipeline 31 enter tubing string, by inner tube outlet pipeline 34
By cross valve 2 21, enter multiphase separator 20 through valve V25, V36, open V20 and back pressure
Valve 23, gas phase emptying after separation, oil phase is back to fuel tank, it is achieved the dynamic experiment of oil-gas two-phase flow.
Annular space suction line 32 is changed into, by annular space by above-mentioned biphase experiment enters inner tube inlet pipeline 31
Outlet line 33 flows out, then realize the experiment of oil gas water biphase inventionannulus flow.
3. oil gas water three phase pipe is interior or inventionannulus flow is tested
Open valve V17, V44, V8, open regulation valve V28, V32, open valve V10, V25,
V23, V43, open check-valves V33, V36, starts water supply pump 12, and aqueous phase passes through water supply line, enters
Enter three-phase mixer 14.Open valve V26, V9, open regulation valve V30, V31, open
Check-valves V34, starts oil pump 11, and oil phase passes through fuel feeding circuit, enters three-phase mixer 14.
Test as source of the gas using air, open valve V2, V4, V5, V7, open regulation valve V27 and
Check-valves V35, air is supplied by air compressor 1, gas buffer tank 2 steady pressure, drying device
3, filter 8 and isolator 5, be transported to three-phase mixer 14.Oil gas water three phase mixture leads to
Cross three-phase mixer 14, flow into cross valve 1, inner tube inlet pipeline 31 enter tubing string,
By inner tube outlet pipeline 34 by cross valve 2 21, enter multi-phase separation system through valve V25, V36,
Opening V20 and counterbalance valve 23, gas phase emptying after separation, oil phase and aqueous phase are back to fuel tank 10 He respectively
Water tank 9, it is achieved oil gas water three phase circulates experiment.
Enter inner tube inlet pipeline 31 in above-mentioned Three-phase Flow being tested and change annular space suction line 32 into, by
Annular space outlet line 33 flows out, then realize the experiment of oil gas water biphase inventionannulus flow.
4. Wellbore Flow sub-cooled heat transfer experiment
In deep water oil development, the low-temperature characteristics of sea water can cause part well section temperature in pit shaft on the low side,
Phenomenon of Heat is there is between pit shaft and sea water.Experimental provision is affected by ocean current in the case of can studying deep water
The cryogenic heat transfer characteristic of downhole well fluid, inner tube represents the pipelines such as the marine riser with contact with sea water or drilling rod,
Fluid simulation deepwater environment in annular space between inner tube and outer tube.Experiment pipeline outermost layer parcel heat-insulation layer,
Whole experimental measurement system can be considered adiabatic process, meets law of conservation of energy.Hot fluid during experiment
(20-65 DEG C) is provided by water tank or the fuel tank of band having heaters, injects from inner tube bottom, can be gas-liquid
Two phase flow (enters heat transfer experiment Duan Qianyi to be sufficiently mixed), inner tube top discharge.Cold flow body (2-6 DEG C)
Being thered is provided by the water tank with cooler, inject from annular space top and flow is adjustable, backflow is discharged in annular space bottom
To water tank.Thus form the Wellbore Flow sub-cooled diabatic process of a simulation deepwater environment.
In water tank 9, hot hydroecium is provided with heater, heats the water to uniform temperature, open valve V16,
V8, V10, V23, V25, open regulation valve V29 and check-valves V33, V36, starts heat-exchanger pump 7,
Hot water passes through water supply line, flows into cross valve 1, inner tube inlet pipeline 31 enters tubing string, by interior
Pipe outlet line 34, by cross valve 2 21, enters discharge pipe through valve V25, V36, opens tune
Joint valve V32 and valve V42, hot water return, to tank hot water room, completes hot water circuit.Water tank 9 cold water
Room is provided with cooler, chills the water to uniform temperature, opens valve V17, V19, V11, opens and adjusts
Joint valve V28, starts water supply pump 12, flows into cross valve 2 21 through valve V19, by annular space suction line
33 flow into tubing string, and annular space outlet line 32 flows out tubing string, by cross valve 1, returns through valve V11
It flow to water tank cold water chamber, complete circulating chilled water.It is achieved in hot water to test with cold water single-phase heat transfer.
Open valve V16, V8, V10, V23, V25, open regulation valve V29 and check-valves V33,
V36, starts heat-exchanger pump 7, and hot water passes through water supply line, enters three-phase mixer 14.With sky
Gas is tested as source of the gas, opens valve V2, V4, V5, V7, opens regulation valve V27 and non-return
Valve V35, air is supplied by air compressor 1, gas buffer tank 2 steady pressure, drying device 3,
Filter 8 and isolator 5, be delivered to three-phase mixer 14.Air-water mixture is at oil gas water three
Phase blender 14 is heated to uniform temperature, flows into cross valve 1, inner tube inlet pipeline 31 enter
Tubing string, by inner tube outlet pipeline 34 by cross valve 2 21, enters many through valve V25, V36, V23
Phase separator 20, opens V20 and counterbalance valve 23, and gas phase empties after separating, open regulation valve V32 and
Valve V42, hot water return, to tank hot water room, completes air-water mixture circulation.Open valve V17,
V19, V11, open regulation valve V28, start water supply pump 12, flow into cross valve 2 21 through valve V19,
Being flowed into tubing string by annular space suction line 33, annular space outlet line 32 flows out tubing string, by cross valve 1,
It is back to water tank cold water chamber through valve V11, completes circulating chilled water.It is achieved in air-water mixture and cold water
Heat transfer experiment.
Open valve V26, V25, V23, open regulation valve V30, V31, open valve V9, V10
With check-valves V34, V36, starting oil pump 11, oil phase passes through fuel feeding circuit, enters oil gas water three phase and mixes
Clutch 14.Test as source of the gas using air, open valve V2, V4, V5, V7, open regulation
Valve V27 and check-valves V35, air is supplied by air compressor 1, gas buffer tank 2 steady pressure,
Drying device 3, filter 8 and isolator 5, be delivered to three-phase mixer 14.Air-fuel mixture
Thing is heated to uniform temperature in three-phase mixer 14, flows into cross valve 1, inner tube enters
Mouth pipeline 31 enters tubing string, by inner tube outlet pipeline 34 by cross valve 2 21, through valve V25, V36
Entering multiphase separator 20, open V20 and counterbalance valve 23, gas phase emptying after separation, oil phase is back to
Fuel tank, completes gas mixture circulation.Open valve V17, V19, V11, open regulation valve V28,
Start water supply pump 12, flow into cross valve 2 21 through valve V19, annular space suction line 33 flow into tubing string,
Annular space outlet line 32 flows out tubing string, by cross valve 1, is back to water tank cold water through valve V11
Room, completes circulating chilled water.It is achieved in gas mixture and cold water heat transfer experiment.
Claims (3)
1. a multi-functional pit shaft oil gas water multiphase analogue experiment installation, including:
For providing the air supply system of the gas of constant flow rate；
For providing the water system of the water of constant flow rate；
For providing the oil supply system of the oil of constant flow rate；
The simulation wellbore hole system of the multiphase fluidflow state in simulation wellbore hole inner tube and annular space；
Be connected with described air supply system, water system and oil supply system for by described gas, water with
And at least two in oil carries out the gas-fluid mixing systems that mixes, the outlet of described gas-fluid mixing systems connects
Simulation wellbore hole system entry；
Be arranged at simulation wellbore hole system outlet for the mixed phase fluid flowing out pit shaft is carried out separating many
Phase-separation system；
And it is arranged at the parameter measurement system in simulation wellbore hole system；
Described air supply system include air compressor (1), gas buffer tank (2), exsiccator (3),
Source nitrogen storage tank (4), isolator (5) and filter (8), the gas of air compressor (1) goes out
Mouth end connects with the gas access end of gas buffer tank (2), the gas outlet end of source nitrogen storage tank (4)
Connecting with the gas access end of gas buffer tank (2), the gas outlet end of gas buffer tank (2) passes through
Connect with the gas access end of exsiccator (3) and be connected on pipeline and be provided with air relief valve (18), exsiccator
(3) gas outlet end communicates with the gas access end of isolator (5) and arranged on connecting line
Filter (8), the gas outlet end of isolator (5) is connected with the gas access end of gas-fluid mixing systems
And it is provided with check-valves connecting on pipeline；
Described water system includes water tank (9), heat-exchanger pump (7) and water supply pump (12), water tank (9)
In be provided with interlayer, be classified as hot hydroecium and cold water chamber, hot hydroecium by heat-exchanger pump (7) connect gas-liquid
The aqueous phase entrance of hybrid system and be provided with flow regulating and controlling valve on pipeline connecting, cold water chamber is by cold
Water pump (12) connects the aqueous phase entrance of gas-fluid mixing systems and is provided with Flow-rate adjustment control connecting on pipeline
Valve processed；
Described oil supply system includes fuel tank (10) and oil pump (11), and fuel tank (10) passes through oil pump (11)
Connect the oil phase entrance of gas-fluid mixing systems and be provided with flow regulating and controlling valve connecting on pipeline；
It is provided with stop valve on each connection pipeline described；
Described parameter measurement system includes that temperature sensor (16), pressure transducer (17), differential pressure pass
Sensor (26), fluid flowmeter (13), gas flowmeter (6) and voidage meter (24), its
In:
Described temperature sensor (16) is at least provided with in: isolator (5) and three-phase mixer (14)
Connection pipeline on, on the connection pipeline of cold water chamber and three-phase mixer (14), hot hydroecium with
On the connection pipeline of three-phase mixer (14), fuel tank (10) and three-phase mixer (14)
Connection pipeline on, on the connection pipeline of three-phase mixer (14) and cross valve one (15),
On each joint of simulation wellbore hole system and on the connection pipeline of cross valve two (21) and cold water chamber；
Described pressure transducer (17) is at least provided with in: air compressor (1) and gas buffer tank (2)
Connection pipeline on, on the connection pipeline of source nitrogen storage tank (4) and gas buffer tank (2), gas delays
Rush that tank (2) is upper, gas buffer tank (2) with on the connection pipeline of exsiccator (3), isolator (5)
With on the connection pipeline of three-phase mixer (14), cold water chamber and three-phase mixer (14)
Connection pipeline on, on the connection pipeline of hot hydroecium and three-phase mixer (14), fuel tank (10)
With on the connection pipeline of three-phase mixer (14), three-phase mixer (14) and four-way
Valve one (15) connect on pipeline, on each joint of simulation wellbore hole system and cross valve two (21) with
On the connection pipeline of cold water chamber；
Described differential pressure pick-up (26) at least provided with in: at some differing heights of simulation wellbore hole system；
Described fluid flowmeter (13) is at least provided with in: cold water chamber and three-phase mixer (14)
Connection pipeline on, on the connection pipeline of hot hydroecium and three-phase mixer (14), fuel tank (10)
With on the connection pipeline of three-phase mixer (14), multiphase separator (20) and water tank (9)
Connect on pipeline and on the connection pipeline of multiphase separator (20) and fuel tank (10)；
Described gas flowmeter (6) is at least provided with in the connecting tube of: exsiccator (3) with isolator (5)
On road and on the connection pipeline of multiphase separator (20) and gas recovery system；
Described voidage meter (24) at least provided with in: at some differing heights of simulation wellbore hole system；
It is characterized in that, also include:
Video monitoring system, by the multiple video cameras (25) being arranged in simulation wellbore hole system differing heights
Composition；
The data collecting system being connected with described parameter measurement system, described data collecting system includes with counting
The data collecting card that calculation machine (30) connects, data collecting card collects temperature sensor (16), pressure passes
Sensor (17), differential pressure pick-up (26), fluid flowmeter (13), gas flowmeter (6) and
Computer (30) it is uploaded to after the data of voidage meter (24).
The most multi-functional pit shaft oil gas water multiphase analogue experiment installation, its feature
Being, described simulation wellbore hole system includes the multi-section structure being vertically arranged on support, outside often saving by one
Pipe (29) and the inner tube (28) being coaxial therewith a heart composition being positioned in outer tube (29), adjacent segments
Between, it is connected with connecting short section with adpting flange；
Described gas-fluid mixing systems includes three-phase mixer (14), three-phase mixer (14)
Gas phase entrance connect the outlet of air supply system, the oil phase entrance of three-phase mixer (14) connects fuel feeding
The outlet of system, the aqueous phase entrance of three-phase mixer (14) connects the outlet of water system, oil gas
The mixed phase outlet of water three-phase blender (14) connects an interface of cross valve one (15), cross valve one (15)
Second interface connect the bottom of inner tube (28), the 3rd interface connects the bottom of outer tube (29), the 4th
The entrance of individual interface water receiving case (9) and pollution discharge pond (27)；
Described multi-phase separation system includes multiphase separator (20), solid collector (22), counterbalance valve
And cross valve two (21) (23), an interface of cross valve two (21) connects the top of inner tube (28),
Two (21) second interfaces of cross valve meet the top of outer tube (29), the 3rd of cross valve two (21)
Cold water chamber's outlet pipeline of interface water receiving case (9), the 4th interface of cross valve two (21) connects heterogeneous point
From the mixed phase entrance of device (20) and it is provided with check-valves and solid collector (22) connecting on pipeline,
The aqueous phase outlet of multiphase separator (20) is divided into two-way and connects hot hydroecium and the cold water chamber of water tank (9) respectively
And it being provided with flow regulating and controlling valve connecting on pipeline, the oil phase outlet of multiphase separator (20) connects
It is provided with flow regulating and controlling valve on pipeline to fuel tank (10) and connecting, multiphase separator (20)
Gaseous phase outlet is connected on gas recovery system and connection pipeline be provided with counterbalance valve (23).
The most multi-functional pit shaft oil gas water multiphase analogue experiment installation, its feature
Be, also include relief valve (19), relief valve (19) at least provided with in:
Gas buffer tank (2) is upper, multiphase separator (20) upper, cold water chamber and three-phase mixer
(14) on connection pipeline, on the connection pipeline of hot hydroecium and three-phase mixer (14), oil
On the connection pipeline of case (10) and three-phase mixer (14) and three-phase mixer (14)
With on the connection pipeline of cross valve one (15).
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| CN204113282U (en) * | 2014-09-11 | 2015-01-21 | 西安石油大学 | A kind of multi-functional pit shaft oil gas water multiphase analogue experiment installation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108592978A (en) * | 2018-03-29 | 2018-09-28 | 安徽中控仪表有限公司 | A kind of oil gas water multiphase on-line metering calibration calibrating installation |
| CN108592978B (en) * | 2018-03-29 | 2022-06-03 | 安徽中控仪表有限公司 | Oil gas water multiphase flow on-line metering calibration device |
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