CN109973086A - Simulate the experimental provision of remaining oil migration and aggregation - Google Patents
Simulate the experimental provision of remaining oil migration and aggregation Download PDFInfo
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- CN109973086A CN109973086A CN201910136188.5A CN201910136188A CN109973086A CN 109973086 A CN109973086 A CN 109973086A CN 201910136188 A CN201910136188 A CN 201910136188A CN 109973086 A CN109973086 A CN 109973086A
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The present invention provides the experimental provision of a kind of simulation remaining oil migration and aggregation, the experimental provision includes: to accommodate pipe, pressure adjusting module and deflection module, wherein, described one end for accommodating pipe is provided with fluid-infusing port, and the other end for accommodating pipe is provided with fluid discharge outlet；The receiving pipe for remaining oil for migrating；The pressure adjusting module includes presser unit and back pressure unit, and the presser unit is connected with the fluid-infusing port, and for pressurizeing into the receiving pipe, the back pressure unit is connected with the fluid discharge outlet, for adjusting the pressure in the receiving pipe；The deflection module is connected with the receiving pipe, for changing the direction of the axis for accommodating pipe.The experimental provision of the migration of simulation remaining oil and aggregation provided by the invention can more actually simulate the migration and aggregation of the remaining oil under the conditions of varying environment temperature, pressure and stratigraphic dip.
Description
Technical field
The present invention relates to field of petroleum geology more particularly to a kind of experimental provisions of simulation remaining oil migration and aggregation.
Background technique
Currently, since the consumption figure of petroleum improves year by year, the cost of domestic exploration and development constantly rises, along with available
Natural resources constantly reduce, therefore to existing petroleum resources carry out sufficiently exploitation be particularly important.To oil development process
Migration, aggregation and the row of middle remaining oil drive the research contents for becoming important in petroleum geology.
In the prior art, to solve this problem, many researchers of field of petroleum geology migrate for remaining oil, are poly-
Collection drives with row and devises imitative experimental appliance.Such as high-pressure gas injection displacement of reservoir oil whole course visible experimental provision, by the experimental provision
One end of slender glass tube inject high pressure gas, form mixed phase with crude oil, and fluid is discharged in the other end, meanwhile, in order to anti-
Pressure difference only inside and outside slender glass tube is larger to be caused to burst, and canister is also surrounded by outside slender glass tube, passes through high pressure
Pump prevents slender glass so that slender glass tube internal and external pressure difference is smaller to injection high pressure transparent fluid in canister
Pipe explosion, which not only realizes the visualization of the overall process of injection gas displacement, but also can simulate in real mining environment
Strata pressure.
But high-pressure gas injection displacement of reservoir oil whole course visible experimental provision can only simulate the condition of high voltage in mining environment, and
For in development process geology and other environment can not simulate, high-pressure gas injection displacement of reservoir oil whole course visible experimental provision is also with regard to nothing
Method realizes more actually simulated environment.
Summary of the invention
The technical issues of in order to solve in the prior art, the present invention propose the experiment of a kind of simulation remaining oil migration and aggregation
Device can more actually simulate the migration and aggregation of the remaining oil under the conditions of different environment temperatures, pressure and stratigraphic dip.
According to a first aspect of the embodiments of the present invention, the experimental provision of a kind of simulation remaining oil migration and aggregation, packet are provided
It includes: accommodating pipe, pressure adjusting module and deflection module, wherein
Described one end for accommodating pipe is provided with fluid-infusing port, and the other end for accommodating pipe is provided with fluid discharge outlet；
The pipe that accommodates for the remaining oil between sand body in pipe for migrating；
The pressure adjusting module includes presser unit and back pressure unit, and the presser unit and the fluid-infusing port connect
It connects, for pressurizeing into the receiving pipe, the back pressure unit is connected with the fluid discharge outlet, for adjusting fluid discharge outlet
Discharge pressure；
The deflection module is connected with the receiving pipe, for changing the direction of the axis for accommodating pipe.
Optionally, which further includes heating module, and the heating module includes heating tape and muff, it is described plus
The tropical and described muff is successively wrapped in from inside to outside on the outside of the receiving pipe.
Optionally, the deflection module includes hoop and rollover stand；The hoop is fixed on the receiving pipe, the ring
Hoop is connected with the rollover stand, and the rollover stand can make the hoop towards different space angles.
Optionally, at least one observation window is provided on the tube wall for accommodating pipe.
Optionally, which further includes data acquisition module, and the data acquisition module includes at least one pressure
Sensor；
It is provided with pressure tap corresponding with the pressure sensor on the tube wall for accommodating pipe, the pressure sensor is worn
The pressure tap is crossed, for detecting the pressure in the receiving pipe.
Optionally, the data acquisition module further includes multiple pre-buried electrodes, and the pre-buried electrode is along the receiving pipe
Length direction is successively arranged at intervals on the tube wall for accommodating pipe, and the end of the pre-buried electrode is protruded into the receiving pipe；
The data acquisition module is also used to measure resistance of the remaining oil between the different pre-buried electrodes.
Optionally, the presser unit includes that the fluid pressure being connected in parallel adjusts unit and gas pressure regulating unit,
Wherein, it includes electrodynamic pump that the fluid pressure, which adjusts unit, and the container group being connected with the electrodynamic pump, and the container group is logical
Control valve is crossed to connect with the fluid-infusing port；It includes air feed bottle and pressure reducing valve, the confession that the gas pressure, which adjusts unit,
Gas cylinder is connect by the pressure reducing valve with the fluid-infusing port.
Optionally, the container group includes multiple the first intermediate receptacles being connected in parallel, and first intermediate receptacle is used for
Store liquid.
Optionally, the back pressure unit includes the second intermediate receptacle and back-pressure valve, second intermediate receptacle and described
Back-pressure valve connection, for adjusting the pressure of the fluid discharge outlet, the back-pressure valve is connected with the fluid discharge outlet.
Optionally, which further includes controller, and the controller is adopted with the heating tape and the data respectively
Collect module connection, the controller is used to control the temperature in the receiving pipe, and records the data acquisition module and acquired
Data.
The experimental provision of simulation remaining oil migration and aggregation provided in an embodiment of the present invention, comprising: accommodate pipe, pressure is adjusted
Module and deflection module, wherein the one end for accommodating pipe is provided with fluid-infusing port, and the other end for accommodating pipe is provided with fluid discharge
Mouthful；Pipe is accommodated for migrating for the remaining oil between sand body in pipe；Pressure adjusting module includes presser unit and back pressure unit, pressurization
Unit is connected with fluid-infusing port, and for pressurizeing into receiving pipe, back pressure unit is connected with fluid discharge outlet, for adjusting fluid
The discharge pressure of outlet；Deflection module is connected with pipe is accommodated, for changing the direction for the axis for accommodating pipe.Due to by this
It is provided with pressure adjusting module in experimental provision, can not only be pressurizeed by presser unit into receiving pipe, be added further through adjusting
Pressure unit can also make to accommodate the pressure remained steady in pipe, while back pressure unit is also able to maintain the fluid discharge outlet for accommodating pipe
Inside and outside differential pressure is kept constant, and additionally by setting deflection module, different angles is deflected it is also possible that accommodating pipe and realizing, with mould
The migration and aggregation of remaining oil in quasi- geology in the environment of Different Strata inclination angle.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without any creative labor, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of present invention experimental provision of simulation remaining oil migration and aggregation shown according to an exemplary embodiment
Structural schematic diagram；
Fig. 2 is the structural schematic diagram of the presser unit in Fig. 1；
Fig. 3 is a kind of present invention experimental provision of simulation remaining oil migration and aggregation shown according to an exemplary embodiment
Front view；
Fig. 4 is a kind of present invention experimental provision of simulation remaining oil migration and aggregation shown according to an exemplary embodiment
Side view.
Description of symbols:
10: pressure adjusting module；
11: accommodating pipe；
12: end cap；
13: fluid-infusing port；
14: fluid discharge outlet；
15: observation window；
16: pressure tap；
20: deflection module；
21: hoop；
22: bearing；
23: rotating device；
24: rollover stand；
30: presser unit；
31: electrodynamic pump；
32: container group；
321: the first intermediate receptacles；
33: air feed bottle；
34: pressure reducing valve；
40: back pressure unit；
41: the second intermediate receptacles；
42: back-pressure valve；
51: pre-buried electrode；
52: heating module；
53: pressure sensor；
54: data acquisition module；
100: the experimental provision of simulation remaining oil migration and aggregation.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the preferred embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or
Similar label indicates same or similar component or component with the same or similar functions.Described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to
It is used to explain the present invention, and is not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should broadly understood, for example, can make to be fixedly connected, be also possible to indirectly connected through an intermediary, can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
The experimental provision of a kind of simulation remaining oil migration and aggregation provided in an embodiment of the present invention, can be adapted for petroleum
Remaining oil in development process is migrated, assembled or is arranged in the simulated scenario driven, it is often more important that, which is also used to
Study remaining oil aggregation.It is carried out in the prior art by high-pressure gas injection displacement of reservoir oil whole course visible experimental provision come the migration to remaining oil
Research, but the degree of automation of the experimental provision is lower, and cannot more actually the geology during analog development and other
Environmental condition, for example, the environmental condition of temperature and stratigraphic dip, while can't realize to the oil saturation of remaining oil
Measurement.
In order to solve the problems in the existing technology, the embodiment of the present invention provides a kind of migration of simulation remaining oil and aggregation
Experimental provision, comprising: accommodate pipe, pressure adjusting module and deflection module, wherein the one end for accommodating pipe is provided with fluid injection
Mouthful, the other end for accommodating pipe is provided with fluid discharge outlet；Pipe is accommodated for migrating for the remaining oil between sand body in pipe；Pressure is adjusted
Module includes presser unit and back pressure unit, and presser unit is connected with fluid-infusing port, for pressurizeing into receiving pipe, back pressure list
Member stablizes receiving overpressure for adjusting the discharge pressure of fluid discharge outlet；Deflection module is connected with pipe is accommodated, for changing
Transfiguration receive pipe axis direction.It, not only can be by adding due to by being provided with pressure adjusting module in the experimental provision
Pressure unit pressurizes into receiving pipe, can also make to accommodate the pressure remained steady in pipe further through presser unit is adjusted, return simultaneously
The inside and outside differential pressure that pressure unit is also able to maintain the fluid discharge outlet of receiving pipe is kept constant, and additionally by setting deflection module, may be used also
So that accommodate pipe realize different angle deflection, with simulate the remaining oil in geology in the environment of Different Strata inclination angle migration and
Aggregation.
Technical solution of the present invention is described in detail with specific embodiment below.
Fig. 1 is a kind of present invention experimental provision of simulation remaining oil migration and aggregation shown according to an exemplary embodiment
Structural schematic diagram.Fig. 2 is the structural schematic diagram of the presser unit in Fig. 1.Fig. 3 is that the present invention shows according to an exemplary embodiment
The front view of the experimental provision of a kind of migration of simulation remaining oil and aggregation out.Fig. 4 is the present invention according to an exemplary embodiment
The side view of the experimental provision of a kind of migration of simulation remaining oil and aggregation that show.
As Figure 1-Figure 4, the simulation remaining oil migration and aggregation experimental provision 100 include: include: accommodate pipe 11,
Pressure adjusting module 10 and deflection module 20, wherein the one end for accommodating pipe 11 is provided with fluid-infusing port 13, accommodates the another of pipe 11
One end is provided with fluid discharge outlet 14；Pipe 11 is accommodated to be used to migrate for remaining oil；Pressure adjusting module 10 includes presser unit 30
With back pressure unit 40, presser unit 30 and fluid-infusing port 13 are connected, for pressurizeing into receiving pipe 11, back pressure unit 40 and stream
Body outlet 14 connects, for adjusting the discharge pressure of fluid discharge outlet 14；Deflection module 20 and receiving pipe 11 connect, for changing
Transfiguration receive pipe 11 axis direction.
In the present embodiment, pipe 11 is accommodated for the migration for remaining oil, is being accommodated in pipe 11, it can be with filling property difference
The materials such as clay, sand, oil and water, to construct geological model locating for remaining oil, and then realize the migration, poly- of remaining oil
Collect and arrange the simulation driven, the receiving pipe 11 in the experimental provision can be made of metal material, naturally it is also possible to be other materials
It is made, as long as being able to bear pressure needed for simulated experiment and other experimental situation conditions.
Optionally, it with reference to Fig. 3, accommodates and is provided at least one observation window 15 on the tube wall of pipe 11, observation window 15 is for seeing
The transport conditions for accommodating the fluid in pipe 11 are examined, the multiple observation windows 15 of setting can be uniformly inlayed on the tube wall for accommodating pipe 11.
Observation window 15 can be tempered glass material, or plastic material is made, specific to make material with no restrictions, but needs
Have the characteristics that it is transparent, high pressure resistant and resistant to high temperature, so as to bear the condition of the high temperature and pressure in simulated environment, and can be with
The fluid situations accommodated in pipe 11 can be observed by observation window 15.
With reference to Fig. 3, the both ends for accommodating pipe 11 are provided with end cap 12, and are respectively equipped on the both ends end cap 12 for accommodating pipe 11
Fluid-infusing port 13 and fluid discharge outlet 14, as shown in connection with fig. 1, fluid-infusing port 13 pass through in pipeline and pressure adjusting module 10
Presser unit 30 connect, fluid discharge outlet 14 is connect by pipeline with the back pressure unit 40 in pressure adjusting module 10.
Specifically, as shown in Figure 1, pressure adjusting module 10 includes presser unit 30 and back pressure unit 40, wherein pressurization is single
Member 30 passes through for pressurizeing to the fluid accommodated in pipe 11 and adjusts presser unit 30, so that fluid is with constant pressure
Power, which is injected into, accommodates pipe 11, and back pressure unit 40 is used to adjust the inside and outside differential pressure for the fluid discharge outlet 14 for accommodating pipe 11, so that interior
External differential is kept constant, at the same back pressure unit 40 can also avoid discharge fluid there is a phenomenon where liquefy.
Optionally, as shown in Fig. 2, presser unit 30 includes that the fluid pressure being connected in parallel adjusts unit 301 and gas pressure
Power adjusts unit 302, wherein it includes electrodynamic pump 31, and the container group being connected with electrodynamic pump 31 that fluid pressure, which adjusts unit 301,
32, container group 32 is connected by control valve 35 and fluid-infusing port 13；It includes 33 He of air feed bottle that gas pressure, which adjusts unit 302,
Pressure reducing valve 34, air feed bottle 33 are connect by pressure reducing valve 34 with fluid-infusing port 13.
Optionally, container group 32 includes multiple the first intermediate receptacles 321 being connected in parallel, and the first intermediate receptacle 321 is used for
Storage oil, water and other fluids reach specifically, being pressurizeed by electrodynamic pump 31 to the liquid in the first intermediate receptacle 321
To after required pressure, by opening the control valve 35 of the first intermediate receptacle 321, pressurized liquid is infused by fluid
Entrance 13, which is injected into, to be accommodated in pipe 11, to realize the pressurization to pipe 11 is accommodated.In the process, it is controlled by control valve 35
Fluid in first intermediate receptacle 321 is injected into constant pressure accommodates pipe 11, in addition, holding among electrodynamic pump 31 and first
Control valve can also be set between device 321, to control pressurization of the electrodynamic pump 31 to the first intermediate receptacle 321, in each first
Between the arrival end of container 321 control valve can be set, to control electrodynamic pump 31 to the liquid pressing in the first intermediate receptacle 321,
Also the property of can choose pressurizes to the liquid in the first different intermediate receptacles 321 simultaneously, in each first intermediate receptacle
Control valve also can be set in 321 outlet end, for controlling the discharge of the liquid after the pressurization in the first intermediate receptacle 321.
In addition, during simulated experiment gas can also be injected in accommodating pipe 11 with remaining oil of migrating.Gas pressure
It is to accommodate pipe 11 for high pressure gas by air feed bottle 33 that power, which adjusts unit 302, specifically, according to pipe is accommodated during simulated experiment
The pressure needed in 11, by the pressure reducing valve 34 in regulating gas pressure regulating unit 302, so that air feed bottle 33 passes through pressure reducing valve
Pressure of 34 pairs of high pressure air reducings to needed for testing is to accommodate pipe 11 to supply by fluid-infusing port 13, realizes and accommodate pipe 11
The pressure condition of the geological model of interior simulation.
It, can be by injecting liquid and/or gas into receiving pipe 11, to realize to receiving pipe 11 in actual application
Pressurization.Specifically, electrodynamic pump 31 can be first passed through to pressurize to the liquid in the first intermediate receptacle 321, through control valve
35 are injected into the liquid after pressurization in receiving pipe 11, after reaching required pressure in receiving pipe 11, close electrodynamic pump 31, into
And closing control valve 35.Restart the pressure reducing valve 34 in gas pressure adjusting unit 302, and pressure reducing valve 34 is adjusted to simulation
The pressure needed in experiment, so that air feed bottle 33 is to accommodate in pipe 11 to inject gas through fluid-infusing port 13.
Optionally, with continued reference to shown in Fig. 4, back pressure unit 40 includes the second intermediate receptacle 41 and back-pressure valve 42, and second
Intermediate receptacle 41 and back-pressure valve 42 connect, for adjusting the pressure of fluid discharge outlet 14, in addition, back-pressure valve 42 and fluid discharge outlet
14 are connected.
Wherein, back pressure unit 40 can make to receive calmly the fluid that pipe 11 is discharged through fluid discharge outlet 14 and be arranged with constant pressure
Out, in order to avoid liquefaction phenomenon occurs from the fluid that the fluid discharge outlet 14 for accommodating pipe 11 is discharged.Specifically, when accommodating the more of pipe interior 11
After phase fluid reaches equilibrium state, back pressure unit 40 is opened, required back pressure pressure is set by back-pressure valve 42, so that stream
The internal and external pressure difference of body outlet 14 keeps constant state, realizes from the fluid that pipe 11 is discharged is accommodated with constant pressure row
Out.Second intermediate receptacle 41 is for stablizing the pressure for the fluid being discharged by back-pressure valve 42, making the pressure of the fluid of discharge and returning
There is no biggish errors between the presetting pressure of pressure valve 42.
In order to simulate geological environment locating for the remaining oil during actual development, (geological environment can be for differently
The environment of inclination layer), the experimental provision 100 of remaining oil migration and aggregation provided by the invention is additionally provided with deflection module 20, should
Deflection module 20 is connect with pipe 11 is accommodated, for changing the direction for the axis for accommodating pipe 11.
Specifically, manual rocker can be set in deflection module 20 to control rotating device 23 and be rotated or deflected, and
Angle after deflection is locked and changes the axis direction for accommodating pipe 11 with this, realizes that certain angle can be deflected by accommodating pipe 11
Degree, in this way by accommodating the deflection of pipe 11, to realize that accommodating the simulation geological model in pipe 11 is also presented Different Strata inclination angle, into
And also it is achieved that the simulation under the Different Strata inclination angle environmental condition in development process to migration and the aggregation of remaining oil.
Wherein, as shown in Figure 3 and Figure 4, deflection module 20 includes hoop 21 and rollover stand 24；Hoop 21 is fixed on 11 receivings
Guan Shang, hoop 21 and rollover stand 24 connect, and rollover stand 24 can make hoop 21 towards different space angles.Specifically, hoop 21
For two semicircular anchor ear compositions, deflection module 20 further includes rotating device 23 and bearing 22, accommodates pipe 11 and passes through hoop 21
It is connected with bearing 22, bearing 22 is connect with rotating device 23 and rollover stand 24 respectively again, the rotation being connected with rollover stand 24
Device 23 can make hoop 21 towards different space angles.Specifically, can be arranged in deflection module 20 manual rocker with
Control rotating device 23 is rotated or is deflected, and is locked to the angle after deflection, also allows for being fixed on hoop 21
Receiving pipe 11 change original axis direction, deflect certain angle.
By the way that deflection module 20 is arranged in the experimental provision of simulation remaining oil migration, turning in deflection module 20 can be made
Pivoted frame 24 supports the weight of entire experimental provision, while can also be by operating rotating device 23, so that fixing on bearings 22
It accommodates pipe to be deflected, different space angles is presented, realize the geological model at the Different Strata inclination angle during actual development.
In the simulation process of migration and aggregation to remaining oil, in order to simulate different temperature during actual development
Degree condition is additionally provided with heating module 52 in the experimental provision 100 that remaining oil provided by the invention is migrated and is assembled.
As shown in figure 3, optional, heating module 52 includes that heating tape (not shown) and muff (do not show in figure
Out), heating tape and muff are successively wrapped in the outside for accommodating pipe 11 from inside to outside.In the present embodiment, in heating module 52
Including heating tape and muff, wherein heat preservation is set on the outside of heating tape, heating tape, which is wrapped in, accommodates removing for 11 outside of pipe
Other regions of observation window 15.It is heated by heating tape to pipe 11 is accommodated, to reach the required temperature of experiment, in addition,
The receiving pipe 11 after heating is kept the temperature using muff, is at constant experimental temperature item so as to accommodate in pipe 11
Part.
Optionally, the experimental provision 100 of simulation remaining oil migration and aggregation further includes data acquisition module 54, and data are adopted
Collecting module 54 includes at least one pressure sensor 53；It accommodates and is provided with survey corresponding with pressure sensor 53 on the tube wall of pipe 11
Mouth 16 is pressed, pressure sensor 53 passes through pressure tap 16, for detecting the pressure accommodated in pipe 11.
Specifically, data acquisition module 54 includes at least one pressure sensor 53, pressure sensor 53 be can be set
The lower part of pipe 11 is accommodated, still, however it is not limited to the lower part for accommodating pipe 11 be set, can set according to specific circumstances, be
It is able to detect that the pressure accommodated in pipe 11, can also be arranged in the experimental provision 100 of the migration of simulation remaining oil and aggregation
Pressure tap 16 corresponding with pressure sensor 53.Specifically, pressure tap 16 can be set accommodate pipe 11 bottom, it is equally, right
Any restrictions are not done in the setting position of pressure tap 16, can need to be configured according to experiment, pressure sensor 53 passes through more
A pressure tap 16 can detecte the pressure for accommodating the different parts in pipe 11, and in turn, data acquisition module 54 will acquire pressure
The pressure that sensor 53 measures.By the way that data acquisition module is arranged in the experimental provision 100 of the migration of simulation remaining oil and aggregation
54, the pressure accommodated in pipe 11 can be timely acquired, it certainly can also be real by being carried out to the pressure for accommodating certain point in pipe 11
When monitor, it is hereby achieved that accommodate pipe 11 in the point pressure changing, can obtain in time in this way accommodate pipe 11 in
Whether pressure reaches required pressure, also can the pressure timely to presser unit 30 be adjusted.
Further, it is saturated in order to obtain the oil-containing of fluid in the experimentation of the migration of simulation remaining oil and aggregation
Degree can also be set in the data acquisition module 54 of the experimental provision 100 of simulation remaining oil migration provided by the invention and aggregation
Multiple pre-buried electrodes 51 are set, measure the resistance for accommodating the fluid in pipe 11 at different pre-buried electrodes 51 during the experiment with this,
And then oil saturation is calculated by Archie formula.
Wherein, pre-buried electrode 51 is successively arranged at intervals on the tube wall for accommodating pipe 11 along the length direction for accommodating pipe 11, in advance
The end for burying electrode 51, which is protruded into, to be accommodated in pipe 11, and data acquisition module 54 is also used to measure and acquire at different pre-buried electrodes 51
Resistance.
Specifically, multiple pre-buried electrodes 51 can be set at the top for accommodating pipe 11, naturally it is also possible to which setting is accommodating pipe
11 other positions can be successively set in qually spaced on the tube wall for accommodating pipe 11 along the length direction for accommodating pipe 11, certainly, right
Any restrictions are not done in the mode present invention of pre-buried electrode setting, and the end of multiple pre-buried electrodes 51 stretches to and accommodates in pipe,
The end of multiple pre-buried electrodes 51 stretch to accommodate pipe 11 depth it is identical, but when for each simulated experiment, multiple pre-buried electricity
The depth that receiving pipe 11 is protruded into the end of pole 51 can be different, can detecte accommodate the fluid of different parts in pipe 11 in this way
Resistance, certainly, when pre-buried electrode 51 stretches in conductive fluid, the resistance between multiple pre-buried electrodes 51 can pass through number
It is calculated according to acquisition module 54.
Meanwhile data acquisition module 54 can also obtain the resistance that multiple pre-buried electrodes 51 measure in real time, by adopting in real time
What is collected accommodates the resistance of the different fluid in pipe 11 or the fluid resistance of different parts, can learn the difference accommodated in pipe 11
The situation of change of the resistance of fluid, for example, the resistance value of the A point in pipe 11 is accommodated by the pre-buried acquisition in real time of electrode 51, it can
To obtain the variation of the resistance value of A point, by multiple equidistant pre-buried electrodes 51, it can comprehensively acquire remaining oil migration and gather
The situation of change of each fluid resistance value in pipe 11 is accommodated during collection, to calculate the oil-containing feelings for accommodating fluid in pipe 11
Condition, and then calculate oil saturation.
Optionally, the experimental provision 100 of the migration of simulation remaining oil and aggregation provided in this embodiment further includes controller, should
Controller and data acquisition module can integrate in an element, and controller connects with heating tape and data acquisition module 54 respectively
It connects, controller is used to control the temperature accommodated in pipe 11, and records the data collected of data acquisition module 54.
Specifically, controller is connected with the heating tape and muff being wrapped in outside receiving pipe 11, for controlling heating
Heating of the band to pipe 11 is accommodated, by temperature needed for setting experiment, control heating tape is heated to pipe 11 is accommodated, with simulation
The experiment condition of high temperature or constant temperature is additionally provided with temperature element (not shown) on the tube wall of pipe 11 in addition, accommodating, and with number
It is connected according to acquisition module 54, temperature element is used for the measurement to the progress temperature of pipe 11 is accommodated, and is managed by temperature element to receiving
11 carry out temperature measuring, and data acquisition module 54 will acquire the temperature data measured in real time, and controller will acquire data
The temperature data that module 54 acquires is recorded.
Illustrate the experimental provision for simulating remaining oil migration and aggregation with specific example below, as Figure 1-Figure 4:
When carrying out simulated experiment with the experimental provision 100 of the migration of simulation remaining oil and aggregation, the experiment is connected first
The connection of each module or the receiving pipe 11 in unit and experimental provision in device, according to the needs of simulated experiment, in simulated experiment
It is uniformly arranged multiple pre-buried electrodes 51 on 11 tube wall of receiving pipe of device, and is connect with data acquisition module 54, it then will simulation
The different experimental material such as sand needed for environment, oil, water is seated in the receiving pipe 11 of imitative experimental appliance, and constructing analog is real
The geological model of remaining oil required for testing migration and aggregation, then installation accommodates two end caps 12 of pipe 11, and uniformly by it
It tightens；The gas pressure started in presser unit 30 adjusts unit 302, air feed bottle 33 is opened, by the way that pressure reducing valve 34 to be adjusted to
Required pressure, the high pressure gas in air feed bottle 33 pass through the control between pressure reducing valve 34, presser unit 30 and fluid-infusing port 13
Fluid-infusing port 13 on valve and end cap 12 processed, which is injected into, to be accommodated in pipe 11.Add to the geological model simulated in pipe 11 is accommodated
Pressure, while starting the heating tape in heating module 52 and muff, temperature required for simulated experiment is set by controller, with
So that the temperature and pressure accommodated in pipe 11 is reached required numerical value, receiving is measured by pressure sensor 53 and temperature element respectively
Pressure and temperature in pipe 11, while 54 pairs of the data acquisition module pressure and temperatures accommodated in pipe 11, are acquired in real time,
When reaching pressure and temperature required for experiment, it will stop the pressurization and heating to pipe 11 is accommodated.In addition, experimental
Difference needs, can be by fluid to pressurizeing in receiving pipe 11, that is, the fluid pressure in starting presser unit 30 is adjusted
Unit 301, first starting electrodynamic pump 31, pressurize to the liquid in the first intermediate receptacle 32 by electrodynamic pump 31, and then make
Liquid after must pressurizeing passes through the control valve and receiving between the first intermediate receptacle 32, presser unit 30 and fluid-infusing port 13
The fluid-infusing port 13 of the left side end cap 12 of pipe 11, which is injected into, accommodates pipe 11, when the fluid under pressure of injection reaches required pressure
When, stop injection fluid under pressure, starting gas pressure adjusts unit 302, and the high pressure gas in air feed bottle 33 passes through pressure reducing valve 34
Gas is injected to accommodating in pipe 11, is pressurizeed with realizing in receiving pipe 11, when receiving pipe 11 reaches required pressure, it will stop
Pressurization to pipe 11 is accommodated；When gas, oil and water three-phase in pipe 11 to be accommodated reach equilibrium state, it will starting back pressure unit
40, by accommodate pipe 11 right side end cap 12 on fluid discharge outlet 14 and the second intermediate receptacle 41 stream is injected into back-pressure valve 42
Body needs to set back-pressure valve 42 and tests required back pressure pressure, can guarantee through fluid discharge outlet so at the same time
14 discharge fluid is with constant pressure venting, and also avoiding fluid, there is a phenomenon where liquefy after fluid discharge outlet 14.Work as fluid
When being discharged through fluid discharge outlet 14, metering device oil-gas-water three-phase metering instrument is opened, the setting of gauge (not shown) is being returned
The other end of pressure valve 42 is carrying out mould for measuring the amount of the oil, gas and the water that are discharged from fluid discharge outlet 14 by back-pressure valve 42
During draft experiment, controller controls the temperature of heating module 52, and data acquisition module 54 acquires multiple pre-buried electrodes 51 in real time
The receiving pipe that the pressure and temperature element that the fluid resistance that measures, multiple pressure sensors 53 measure in receiving pipe measure
Temperature, controller simultaneously record the data of acquisition.It is more on 11 tube wall of pipe by accommodating while simulated experiment carries out
A observation window 15 observes oil, gas and water and is accommodating the migration in pipe 11, aggregation and row's drive situation, and can pass through camera record
The situation of change of fluid in observation window 15.
During the experiment, if the remaining oil in geological model is in geology higher part position, artificial gas cap can be used
The displacement of reservoir oil is carried out with the mode of the two-way drive of bottom water, it, can will be in presser unit when carrying out artificial gas cap and bottom water two-way drive experiment
Electrodynamic pump 31 and the first intermediate receptacle 32 not only connected with fluid-infusing port 13, while also being connect with fluid discharge outlet 14, this
When, fluid discharge outlet 14 is equivalent to fluid-infusing port, and the second intermediate receptacle 41 and pressure reducing valve 42 in back pressure unit 40 and holds
The pressure tap 16 of 11 bottom of pipe received connects, at this point, pressure tap 16 is equivalent to fluid discharge outlet, meanwhile, by gauge and pressure reducing valve
42 connections, and the liquid measure of discharge fluid is measured, certainly, during the experiment, at least one pressure tap in multiple pressure taps 16
16 access port as pressure sensor 53, other can be used as fluid discharge outlet, in addition, can also pass through during the experiment
The situation of change of fluid in camera record observation window 15.
The experimental provision of simulation remaining oil migration and aggregation provided in an embodiment of the present invention, comprising: accommodate pipe, pressure is adjusted
Module and deflection module, wherein the one end for accommodating pipe is provided with fluid-infusing port, and the other end for accommodating pipe is provided with fluid discharge
Mouthful；Pipe is accommodated for migrating for the remaining oil between sand body in pipe；Pressure adjusting module includes presser unit and back pressure unit, pressurization
Unit is connected with fluid-infusing port, and for pressurizeing into receiving pipe, back pressure unit is connected with fluid discharge outlet, is accommodated for adjusting
Pressure in pipe；Deflection module is connected with pipe is accommodated, for changing the direction of the axis for accommodating pipe.Due to by the reality
It is provided with pressure adjusting module in experiment device, can not only be pressurizeed by presser unit into receiving pipe, be pressurizeed further through adjusting
Unit can also make to accommodate the pressure remained steady in pipe, while back pressure unit is also able to maintain the interior of the fluid discharge outlet for accommodating pipe
External differential is kept constant, and additionally by setting deflection module, different angles is deflected it is also possible that accommodating pipe and realizing, with simulation
In practical geological environment under the conditions of Different Strata inclination angle remaining oil migration.
In the description of the present invention, it is to be understood that, term " on ", "lower", "vertical", "horizontal", "top", "bottom",
The orientation or positional relationship of the instructions such as "inner", "outside" are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of
The description present invention and simplify description, rather than indicate or imply signified device or element must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In the description of the present invention, " multiple "
It is meant that two or more, accurately specifically provides unless otherwise.
The description and claims of this application and the term " first " in above-mentioned attached drawing, " second " are for distinguishing class
As object, without being used to describe a particular order or precedence order.It should be understood that the data that the present embodiment uses are appropriate
In the case of can be interchanged, so that embodiments herein can be implemented with the sequence other than illustrating or describing herein.
In addition, term " includes " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, comprising
The process, method, system, product or equipment of a series of steps or units those of are not necessarily limited to be clearly listed step or list
Member, but may include other steps or list being not clearly listed or intrinsic for these process, methods, product or equipment
Member.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of experimental provision of simulation remaining oil migration and aggregation characterized by comprising accommodate pipe, pressure adjusting module
And deflection module, wherein
Described one end for accommodating pipe is provided with fluid-infusing port, and the other end for accommodating pipe is provided with fluid discharge outlet；It is described
Pipe is accommodated for migrating for remaining oil；
The pressure adjusting module includes presser unit and back pressure unit, and the presser unit is connected with the fluid-infusing port,
For pressurizeing into the receiving pipe, the back pressure unit is connected with the fluid discharge outlet, for adjusting fluid discharge outlet
Discharge pressure；
The deflection module is connected with the receiving pipe, for changing the direction of the axis for accommodating pipe.
2. experimental provision according to claim 1, which is characterized in that further include heating module, the heating module includes
Heating tape and muff, the heating tape and the muff are successively wrapped in from inside to outside on the outside of the receiving pipe.
3. experimental provision according to claim 1, which is characterized in that the deflection module includes hoop and rollover stand；Institute
It states hoop to be fixed on the receiving pipe, the hoop is connected with the rollover stand, and the rollover stand can make the hoop direction
Different space angles.
4. experimental provision according to claim 1, which is characterized in that be provided at least one on the tube wall for accommodating pipe
Observation window.
5. experimental provision according to claim 2, which is characterized in that it further include data acquisition module, the data acquisition
Module includes at least one pressure sensor；
Pressure tap corresponding with the pressure sensor is provided on the tube wall for accommodating pipe, the pressure sensor passes through institute
Pressure tap is stated, for detecting the pressure in the receiving pipe.
6. experimental provision according to claim 5, which is characterized in that the data acquisition module further includes multiple pre-buried electricity
Pole, the pre-buried electrode is successively arranged at intervals on the tube wall for accommodating pipe along the length direction for accommodating pipe, described pre-
The end for burying electrode is protruded into the receiving pipe；
The data acquisition module is also used to measure resistance of the remaining oil between the different pre-buried electrodes.
7. experimental provision according to claim 1-6, which is characterized in that the presser unit includes being connected in parallel
Fluid pressure adjust unit and gas pressure regulating unit, wherein it includes electrodynamic pump that the fluid pressure, which adjusts unit, and
The container group being connected with the electrodynamic pump, the container group are connected by control valve with the fluid-infusing port；The gas
Pressure regulating unit includes air feed bottle and pressure reducing valve, and the air feed bottle is connect by the pressure reducing valve with the fluid-infusing port.
8. experimental provision according to claim 7, which is characterized in that the container group includes multiple first be connected in parallel
Intermediate receptacle, first intermediate receptacle is for storing liquid.
9. experimental provision according to claim 1, which is characterized in that the back pressure unit include the second intermediate receptacle and
Back-pressure valve, second intermediate receptacle are connected with the back-pressure valve, for adjusting the pressure of the fluid discharge outlet, the back pressure
Valve is connected with the fluid discharge outlet.
10. experimental provision according to claim 5, which is characterized in that further include controller, the controller respectively with institute
It states heating tape to connect with the data acquisition module, the controller is used to control the temperature in the receiving pipe, and records institute
State data acquisition module data collected.
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