CN108071379A - A kind of combustion drive forward position thermal compensation tracking test device - Google Patents
A kind of combustion drive forward position thermal compensation tracking test device Download PDFInfo
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- CN108071379A CN108071379A CN201810123470.5A CN201810123470A CN108071379A CN 108071379 A CN108071379 A CN 108071379A CN 201810123470 A CN201810123470 A CN 201810123470A CN 108071379 A CN108071379 A CN 108071379A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 74
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 239000011435 rock Substances 0.000 claims abstract description 49
- 210000002445 nipple Anatomy 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 239000004576 sand Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 48
- 238000001816 cooling Methods 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 12
- 235000004443 Ricinus communis Nutrition 0.000 claims description 8
- 239000000110 cooling liquid Substances 0.000 claims description 8
- 240000000528 Ricinus communis Species 0.000 claims description 4
- 238000004088 simulation Methods 0.000 abstract description 15
- 239000003921 oil Substances 0.000 description 38
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- 238000006073 displacement reaction Methods 0.000 description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 238000011065 in-situ storage Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000010779 crude oil Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 238000000429 assembly Methods 0.000 description 3
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- 239000000243 solution Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000000233 Melia azedarach Species 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 238000010795 Steam Flooding Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 210000005069 ears Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/243—Combustion in situ
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Testing Of Engines (AREA)
Abstract
The invention discloses a kind of combustion drive forward position thermal compensation tracking test devices, including reaction unit and confining pressure device, wherein reaction unit includes sealing chamber component, the back-up sand rock core being filled in chamber component and the multigroup tracking thermal compensation device arranged along chamber component axial direction of strip；The positioner that confining pressure device includes the sealing confining pressure chamber component of strip and is installed in confining pressure chamber component, the outer wall of confining pressure chamber component are equipped with confining pressure inlet；Chamber component is set in confining pressure chamber component inside and passes through positioner and fixed with confining pressure chamber component；Fill nipple and output connector are also respectively provided at the both ends of confining pressure chamber component, the both ends of fill nipple and output connector respectively with chamber component are correspondingly connected with.The present invention reduces scattering and disappearing for heat by way of tracking combustion drive forward position and carrying out thermal compensation, while reduces the interference to heat in combustion drive simulation so that burning constantly goes on, and simulation precision is high, error is small.
Description
Technical field
The invention belongs to fireflood extraction system analogue technique fields, especially set a kind of thermal compensation tracking of combustion drive forward position real
Experiment device.
Background technology
Viscous crude occupies very big ratio in the petroleum resources in the world, according to statistics, the conventional crude geology confirmed in the world
Reserves are about 4200 × 108m3, and viscous crude (including the solidifying oil of height) reservoir geology reserves are up to 15500 × 108m3；China is current
Number is found that in 15 large and medium-sized oil basins such as Song-liao basin, quasi- Ge Er basins, Er'lian Basin Bohai gulf basin and area
Numerous heavy crude reservoirs is measured, prediction data shows that China's heavy crude reservoir reserves are up to 80 × 108m3More than.But since viscous crude has
There are high viscosity and the characteristic of high-solidification point, oil reservoir filtrational resistance is excessive so that crude oil cannot flow into pit shaft from stratum；Even if crude oil
Shaft bottom can be flowed to, during from shaft bottom to moving uphole, viscosity of crude is made into one due to decompression degassing and radiating and cooling
Step increases, and all severely impacts being normally carried out for crude oil so that viscous crude poor fluidity, exploitation difficulty are big.
The curve that viscosity of crude is varied with temperature and changed is known as viscosity-temperature curve.For conventional crude, due to viscous temperature
Curve effect is little, is often ignored by people.But for viscous crude, the viscosity with temperature of viscous crude changes very sensitive, temperature liter
Height, viscosity drastically decline.This is the most important principle of heavy crude heat extraction --- heating, viscosity reducing mechanism, is also determined whether to carry out heat
The basis that power is recovered the oil.
Oil recovery by heating improves the production technique of recovery ratio primarily directed to heavy crude reservoir, it includes heat injection water drive, steam gulps down
Spit, steam drive, the technologies such as combustion in situ.Combustion in situ is also known as burning in underground combustion or layer, also known as fireflood extraction system, be by
Air is injected into oil reservoir, by manually air is heated to light in underground crude oil temperature or by air with it is former
Oil autoxidation heat in oil reservoir makes oil reservoir reach the ignition process of ignition temperature, and oil reservoir is made to realize underground combustion, underground combustion
It burns process combusts and falls a part of crude oil, generate heat and form the series of effects such as viscosity reduction, distillation to help to harvest unburned original
Oil.
Mining site actual combustion in situ in oil field is a large-scale combustion process forward, in the oil reservoir to be burnt, heat
It is transferred mainly along displacement of reservoir oil forward position, vertical displacement of reservoir oil forward position dispersed heat is seldom.The baked wheaten cake of laboratory physical simulating device simulation
Oil reservoir process is with the actual combustion in situ process most significant difference of oil field mining site：The back-up sand of laboratory physical simulating device simulation
Rock core is only the actual combustion in situ process part therein of oil field mining site, and generally, laboratory simulation is only true
A sub-regions among excess fire burning process.It means that combustion in situ process is carried out using physical simulating device in laboratory
, it is necessary to be controlled into trip temperature the border of physical simulating device during simulation, back-up sand rock core is carried out in vertical displacement of reservoir oil forward position direction
For heat compensation to reduce thermal loss, heat is most of to front transfer during the actual combustion in situ of simulation oil field mining site, and hangs down
Directly in the less process of displacement of reservoir oil forward position direction dispersed heat, reduce heat and be lost in ambient enviroment, heat is made to continue forward
Aggregation is burnt forward position and is constantly pushed ahead.Based on the thinking, combustion in situ laboratory physical simulating device is generally using exhausted at present
Heat or thermal compensation come ensure heat along displacement of reservoir oil forward position transfer.In order to carry out insulation to experiment model, it is quick to reduce heat
It is transferred in ambient enviroment, uses thermal insulation material to experimental provision and carry out integral heat insulation, be the main of such current experimental provision
Insulation mean；In terms of thermal compensation, back-up sand rock core is heated using heating tape, makes the heat of supplement and dispersed heat phase
Deng so as to supplement the heat lost.
But current simulator has the defects of following and deficiency：
(1) mode of heat transfer includes heat transfer, thermal convection current, three kinds of heat radiation, therefore adiabatic also inevitable from this tripartite
Start in face；But actual physical simulating device is the true combustion in situ state of simulated formation, only use thermal insulation material into
The mode of row integral heat insulation is feasible on the premise of calculating inaccurately heat windage, but if thermal requirement is done
It is minimum to windage, then this kind of adiabatic method is with regard to unrealistic, because from the fever of back-up sand rock core to heat transfer to thermal insulating material
Material, then reaches heat balance and scatters and disappears not open, which has just scattered and disappeared partial heat from back-up sand rock core；
(2) part thermal compensation device uses heating tape, unified heating is carried out to back-up sand rock core, but true baked wheaten cake is oily
Layer is a process burnt forward, if being heated at unburned place clearly incorrect；
(3) back-up sand rock core only has top thermal tracking system, and bottom is tracked without heat, during Actual combustion, upper and lower temperature difference
It is very big；
(4) true oil reservoir is the environment of a high pressure-temperature, is generally enclosed in simulated high-pressure environment using nitrogen injection
Pressing mold is intended, so as to fulfill the environment of high pressure.In a high voltage state, the density of nitrogen will be significantly increased, and be filled at this time in physical analogy
The phenomenon that gravitational differentiation will be present in putting, the phenomenon can cause heat that thermal convection current occurs, and cause the heat exchange of different position,
Experimental simulation authenticity is not high；
(5) manual firing's mode is single, is easy to cause flame-out；
(6) temperature, pressure testing data deficiency, sensor distance is excessive, when displacement of reservoir oil forward position is exactly in two sensors
Between when, displacement of reservoir oil advanced position and form cannot be accurately positioned.Before fireflood displacement of reservoir oil forward position cannot be studied in this case
Macroscopic thermodynamics feature afterwards can not also study " oily wall " and whether there is and existing form.
Therefore, for above deficiency, the present invention is badly in need of providing a kind of combustion drive forward position thermal compensation tracking test device.
The content of the invention
It is an object of the invention to provide a kind of combustion drive forward position thermal compensation tracking test device, to solve the prior art
The problem of middle thermal insulation simulator heat Calculation is inaccurately and the heat compensation mode error of heat compensation device is larger.
The present invention provides following proposals：
A kind of combustion drive forward position thermal compensation tracking test device, including reaction unit and confining pressure device, wherein described anti-
The sealing chamber component for answering device including strip, the back-up sand rock core being filled in the chamber component and along the reaction
Multigroup tracking thermal compensation device of chamber component axial direction arrangement, the reaction unit are reacted and carried out for simulating combustion drive
Forward position tracks thermal compensation；The confining pressure device includes the sealing confining pressure chamber component of strip and is installed in the confining pressure chamber component
Positioner, the outer wall of the confining pressure chamber component is equipped with confining pressure inlet, and the confining pressure inlet is for injecting confining pressure Jie
Matter；The chamber component is set in the confining pressure chamber component inside and is consolidated by the positioner and the confining pressure chamber component
It is fixed；Fill nipple and output connector, the fill nipple and the production are also separately installed at the both ends of the confining pressure chamber component
Going out both ends of the connector respectively with the chamber component to be correspondingly connected with, the fill nipple is used to inject viscous crude and the igniting displacement of reservoir oil,
The output connector is used for output viscous crude.
A kind of combustion drive forward position thermal compensation tracking test device as described above, further preferably, the tracking heat
Compensation device includes rock core thermocouple, wall surface thermocouple and heating watt, the rock core thermocouple, wall surface thermocouple and heating watt-minute
It is not arranged in the chamber component, the heating watt is connected respectively with the rock core thermocouple, wall surface thermocouple signal；Institute
Rock core thermocouple is stated for detecting core temperature, the wall surface thermocouple is used to detect the heating watt temperature, the heating watt
For carrying out heating compensation according to the difference between core temperature and the heating watt temperature.
A kind of combustion drive forward position thermal compensation tracking test device as described above, further preferably, the tracking heat
Compensation device further includes pressure sensor, for detecting rock core pressure, and then the confining pressure device is aided in carry out confining pressure control；Institute
Heating watt is stated to set in three-clove style.
A kind of combustion drive forward position thermal compensation tracking test device as described above, further preferably, further includes cooling
Coil pipe, the cooling coil are coiled in the confining pressure chamber component on the outside of the chamber component, and with mounted on the confining pressure chamber
Cooling liquid inlet on component is connected with cooling liquid outlet, and the cooling coil is used to cool down.
A kind of combustion drive forward position thermal compensation tracking test device as described above, further preferably, the positioning dress
It puts including the first connecting hoop and the second connecting hoop, first connecting hoop and second connecting hoop are installed on the confining pressure respectively
The both ends of chamber component, and be correspondingly connected with the both ends of chamber component.
A kind of combustion drive forward position thermal compensation tracking test device as described above, further preferably, described first connects
Thermal insulation layer is also filled in box cupling and second connecting hoop, for heat-insulated.
A kind of combustion drive forward position thermal compensation tracking test device as described above, further preferably, the reaction chamber
Component includes inner sleeve, the first positioning clamps plug and the second positioning clamps plug, and first positioning clamps plug and described
Second positioning clamps plug closure at the both ends of the inner sleeve, and first positioning clamps plug and second positioning clamps
Plug is correspondingly connected with respectively with the positioner.
A kind of combustion drive forward position thermal compensation tracking test device as described above, further preferably, the confining pressure chamber
Component includes outer sleeve, the first end cap, the second end cap, the first anchor ear and the second anchor ear, first end cap, second end cap
It is blocked respectively at the both ends of the outer sleeve, and is fastenedly connected respectively by first anchor ear and second anchor ear；It is described
Fill nipple, the output connector correspond with first end cap, second end cap install respectively.
A kind of combustion drive forward position thermal compensation tracking test device as described above, further preferably, further includes installation
Pedestal, the mounting seat include steelframe and rotating turret, and the rotating turret is mounted on the steelframe, and the confining pressure chamber component leads to
Pipe collar is crossed to correspond on the rotating turret.
A kind of combustion drive forward position thermal compensation tracking test device as described above, further preferably, on the steelframe
Multiple load-carrying castors are also equipped with, for moving；The junction of the load-carrying castor and the steelframe is additionally provided with spring washer,
It is shaken for reducing.
The present invention has the following advantages that compared with prior art：
The invention discloses a kind of combustion drive forward position thermal compensation tracking test devices, are filled including reaction unit and confining pressure
It puts, wherein the sealing chamber component of reaction unit including strip, the back-up sand rock core that is filled in chamber component and along anti-
Multigroup tracking thermal compensation device that chamber component axial direction is answered to arrange, for simulating, combustion drive react and to carry out forward position tracking hot
Compensation；The positioner that confining pressure device includes the sealing confining pressure chamber component of strip and is installed in confining pressure chamber component, confining pressure chamber
The outer wall of component is equipped with confining pressure inlet；Chamber component is set in confining pressure chamber component inside and passes through positioner and confining pressure
Chamber component is fixed；Fill nipple and output connector are also respectively provided at the both ends of confining pressure chamber component, fill nipple and output connect
Both ends of the head respectively with chamber component are correspondingly connected with, and for injecting viscous crude and the igniting displacement of reservoir oil, output connector is used for fill nipple
Output viscous crude.Above device reduces scattering and disappearing for heat by way of tracking combustion drive forward position and carrying out thermal compensation, reduces simultaneously
Track the interference of heat during thermal compensation device simulates combustion drive so that heat is persistently transferred along displacement of reservoir oil forward position, and burning is not
Disconnected to go on, simulation precision is high, error is small.
Description of the drawings
Fig. 1 is a kind of structure diagram of combustion drive forward position thermal compensation tracking test device of the present invention；
Fig. 2 is a kind of front view of the reaction unit of combustion drive forward position thermal compensation tracking test device of the present invention；
Fig. 3 is a kind of left and right view of the reaction unit of combustion drive forward position thermal compensation tracking test device of the present invention,
Middle Fig. 3 a are left view, and Fig. 3 b are right view；
Fig. 4 is a kind of front view of the confining pressure device of combustion drive forward position thermal compensation tracking test device of the present invention；
Fig. 5 is a kind of left end connection structure of the confining pressure device of combustion drive forward position thermal compensation tracking test device of the present invention
Figure；
Fig. 6 is a kind of left view of the confining pressure device of combustion drive forward position thermal compensation tracking test device of the present invention；
Fig. 7 is a kind of front view of the mounting structure of combustion drive forward position thermal compensation tracking test device of the present invention；
Fig. 8 is a kind of left view of the mounting structure of combustion drive forward position thermal compensation tracking test device of the present invention.
Reference sign：
1- inner sleeves, the positioning of 2- second clamp plug, and the positioning of 3- first clamps plug, 4- rock core thermocouples, and 5- pressure passes
Sensor, 6- wall surface thermocouples, 7- heating watts, 8- back-up sand rock cores, 9- outer sleeves, the first end caps of 10-, the second end caps of 11-, 12-
One anchor ear, the second anchor ears of 13-, the first connecting hoops of 14-, the second connecting hoops of 15-, 16- fill nipples, 17- output connectors, 18- are cold
But coil pipe, 19- cooling liquid outlets, 20- cooling liquid inlets, 21- first thermal insulation layers, 22- second thermal insulation layers, 23- crude oil inlets,
24- locking nuts, 25- igniters, 26- confining pressure inlets, 27- aviation plugs, 28- sealing rings, 29- bolts, 30- first are managed
Hoop, the second pipe collars of 31-, 32- rotating turrets, 33- steelframes, 34- spring washers, 35- reducing gears, 36- load-carrying castors, 37- supports
Seat, 38- locking pin assemblies.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
As shown in figures 1-8, present embodiment discloses a kind of combustion drive forward position thermal compensation tracking test device, including reaction
Device and confining pressure device.Reaction unit includes the chamber component of sealing strip, the back-up sand rock being filled in chamber component
The heart 8 and the multigroup tracking thermal compensation device arranged along chamber component axial direction, wherein chamber component are used to form reaction
Chamber, for simulating the porous media in oil reservoir, the setting of multiple tracking thermal compensation devices is used for sectional for the setting of back-up sand rock core 8
The displacement of reservoir oil forward position for the combustion drive reaction simulated in tracking chamber component simultaneously carries out thermal compensation, on the one hand reduces combustion drive heat
Scattering and disappearing for amount, makes it persistently be transferred along displacement of reservoir oil forward position, and burning constantly goes on, and avoids burning the reduction of forward position heat, improve
The precision of simulated experiment, on the other hand, simulates real combustion drive reaction, i.e., carrying out heat compensation along the direction of burning adds
Heat, the reduction degree of simulation are high.Confining pressure device includes the confining pressure chamber component of sealing strip and is installed in confining pressure chamber component to determine
Position device, the outer wall of confining pressure chamber component are equipped with confining pressure inlet 26, and wherein confining pressure chamber component for forming confining pressure chamber, note by confining pressure
Entrance 26 is used to inject nitrogen progress confining pressure simulation into confining pressure chamber component, and the positioner of clamping is consolidated with respect to confining pressure chamber component
It is fixed；Reaction unit is set in confining pressure chamber component inside and passes through positioner and fixed with confining pressure chamber component；In confining pressure chamber component
Both ends are also respectively provided with fill nipple 16 and output connector 17, fill nipple 16 and output connector 17 respectively with chamber component
Both ends be correspondingly connected with, wherein fill nipple 16 is used to inject viscous crude and the displacement of reservoir oil of lighting a fire, output connector 17 into chamber component
For output viscous crude.Further, fill nipple 16 is by setting crude oil injection channel and igniter to be injected separately into viscous crude and point
Fireflood oil, output connector is by setting output passage output viscous crude.Above device is a set of suitable for laboratory scientific research flow
A kind of confining pressure combustion in situ simulator, mainly reduces the loss of heat by way of tracking thermal compensation, at the same reduce with
The interference of heat during track thermal compensation device simulates combustion drive so that heat is persistently transferred along displacement of reservoir oil forward position, and burning is continuous
It goes on, simulation precision is high, error is small.
As shown in figures 1-8, in a kind of combustion drive forward position thermal compensation tracking test device disclosed in the present embodiment, with
Track thermal compensation device include rock core thermocouple 4, wall surface thermocouple 6 and heating watt 7, rock core thermocouple 4, wall surface thermocouple 6 and add
Heat watt 7 is separately positioned in chamber component, and heating watt 7 is connected respectively with rock core thermocouple 4,6 signal of wall surface thermocouple；Wall surface
Thermocouple 6 detects the outside wall surface temperature of chamber component, rock core thermocouple 4 is used to detect rock for detecting 7 temperature of heating watt
Heart temperature, heating watt 7 are used to carry out heating compensation according to the difference of core temperature and outside wall surface temperature.Further, tracking heat
Compensation device further includes pressure sensor 5, for detecting rock core pressure, and then confining pressure device is aided in carry out confining pressure control, auxiliary
Confining pressure device is pressurizeed by the way of 8 internal pressure of back-up sand rock core is tracked, and prevents confining pressure is excessive from chamber component being caused to deform.Add
Heat watts 7 is mounted in three-clove style in chamber component, as shown in Figure 3a, 3b, for facilitate install and for rock core thermocouple 4,
Out position is reserved in the installation of wall surface thermocouple 6 and pressure sensor 5.Preferably, tracking thermal compensation device includes two rock core heat
The pressure sensor 5 of wall surface thermocouple 6, one of galvanic couple 4, one and a heating watt 7, it is plurality of to track the more of thermal compensation device
A spaced set in chamber component of rock core thermocouple 4, a wall surface thermocouple 6 and a pressure sensor 5 respectively with
Two rock core thermocouples 4 are located on same section, and wall surface thermocouple 6 and with its be located at the rock core thermocouple 4 in same section insert
In heating watt 7, pressure sensor 5 and another rock core thermocouple 4 are located at the two neighboring gap for tracking thermal compensation device
In.The setting of above-mentioned tracking thermal compensation device utilizes temperature sensor (i.e. rock core thermocouple 4 and wall surface with high sensitivity
Thermocouple 6) temperature for burning forward position and heating watt 7 is detected, it is same by comparing when the constantly combustion propagation forward of displacement of reservoir oil forward position
The temperature and the temperature of heating watt 7 that rock core thermocouple 4 detects on section, control heating watt 7 heat, and have work(using heating watt 7
The characteristics of rate is high, size is thin, thermal capacitance is small rapidly heats up and temperature control and reduces thermal loss, so as to fulfill thermal compensation it is automatic with
Track function.And the tracing detection of core temperature is for avoiding 8 surface of back-up sand rock core and the central part temperature difference during Actual combustion
Greatly, the problem of heat tracing compensation is inaccurate.The heating power of each heating watt 7 is by stringent in three-clove style heating watt 7
Test so that the heat approximately equal generated in three 7 unit interval of heating watt.Preferably, 7 computer heating control mode of heating watt is adopted
It is heated with pulsed, i.e., heating watt 7 is intermittently made to generate heat, this kind of mode of heating can prevent heating watt heating power mistake
It is big cause thermal inertia it is big caused by overheating problem.Further, the rock core thermocouple 4 in multiple tracing compensation devices, pressure
Sensor 5, wall surface thermocouple 6 and heating watt 7 are connected with external system software, and heat is accurately controlled by external system software
Tracing compensation.
As shown in figures 1-8, in a kind of combustion drive forward position thermal compensation tracking test device disclosed in the present embodiment, also
Including cooling coil 18, cooling coil 18 is coiled in the confining pressure chamber on the outside of chamber component, and with mounted on confining pressure chamber component
On cooling liquid inlet 20 and cooling liquid outlet 19 connect, for cooling down.True oil reservoir is the environment of a high temperature and pressure, in mould
Intend generally carrying out confining pressure simulation using nitrogen injection in hyperbaric environment, so as to fulfill the environment of high pressure.In a high voltage state, nitrogen
Density will be significantly increased, and will be present with the phenomenon that gravitational differentiation in physical simulating device at this time, which can cause heat to be sent out
Raw convection current, causes the heat exchange of different position, and experimental simulation authenticity is not high.To solve this problem, high pressure confining pressure is reduced
The thermal convection current that fluid is generated by itself by gravitational differentiation, the radial direction for reducing heat are transferred, and the present embodiment is provided in confining pressure intracavitary
Cooling coil 18, and cooling coil 18 makes the fluid of confining pressure intracavitary and cooling water fully right using the water-out manners of bottom in and top out
Stream, reaches optimal cooling effect.
As shown in figures 1 to 6, it is fixed in a kind of combustion drive forward position thermal compensation tracking test device disclosed in the present embodiment
Position device includes the first connecting hoop 14 and the second connecting hoop 15, and the first connecting hoop 14 and the second connecting hoop 15 are installed on confining pressure respectively
The both ends of chamber component, and be correspondingly connected with the both ends of chamber component.Further, the first connecting hoop 14 and the second connecting hoop 15
In be also filled with thermal insulation layer, i.e., correspond the first thermal insulation layer 21 set, the with the first connecting hoop 14, the second connecting hoop in figure
Two thermal insulation layers 22, for heat-insulated.The first connecting hoop 14 and the second connecting hoop 15 have two effects in the present embodiment：When for
The both ends of chamber component are correspondingly connected with, and back-up sand rock core 8 is made to be placed in parallel in confining pressure chamber, second is that for stuffed heat insulated layer, are prevented
Only output connector 17 in experimentation, the temperature of fill nipple 16 is excessively high and causes danger to experimenter.
As shown in figures 1-8, in a kind of combustion drive forward position thermal compensation tracking test device disclosed in the present embodiment, instead
Chamber component is answered to include the positioning of inner sleeve 1, first and clamps the positioning clamping plug 2 of plug 3 and second, the first positioning clamps 3 He of plug
Second positioning clamps plug 2 and blocks at the both ends of inner sleeve 1, and is correspondingly connected with positioner.Corresponding first positioning clamps
The positioning of plug 3, second clamps 2 and first connecting hoop 14 of plug, the second connecting hoop 15 is corresponded and set, for reaction unit
Positioning；Back-up sand rock core 8 is filled in the closing inner chamber of inner sleeve 1, it is preferred that back-up sand rock core 8 uses quartz sand, whole section of inner sleeve
1 overhead is installed, and quality is excessively high will to cause 1 flexural deformation of inner sleeve；And burn during burning block extreme temperatures, together
When there may be CO2、H2The corrosive gas such as S；It is bigger in view of the bigger heat dissipation capacity of wall thickness, inner sleeve 1 need using wall thickness it is small and
The high material of intensity.Preferably, inner sleeve 1 is made using Hastelloy material, and Hastelloy material belongs to Ultra-low carbon type, has
The advantages that high intensity, inoxidizability, high temperature resistant, light weight, in this present embodiment, the advantages of Hastelloy, will be filled
Divide and utilize.
As shown in figures 1-8, in a kind of combustion drive forward position thermal compensation tracking test device disclosed in the present embodiment, enclose
Pressing chamber component includes outer sleeve 9, the first end cap 10, the second end cap 11, the first anchor ear 12 and the second anchor ear 13, the first end cap 10,
Second end cap 11 is blocked respectively at the both ends of outer sleeve 9, and passes through the first anchor ear 12 and the second anchor ear 13 is fastenedly connected；Injection connects
First 16,17 and first end cap 10 of output connector, the second end cap 11 correspond installation.It is and a large amount of due to having been used in reaction unit
Thermocouple, the present apparatus borrow aviation plug 27 have high pressure resistant heat safe characteristic, will be enclosed by the way of aviation plug 27
The conducting wire of intracavitary is pressed to draw, i.e., 27 position of aviation plug is reserved on the second end cap 11；Due to by the way of the logical plug of boat
Extraction wire, to avoid excessive compression aviation plug 27, confining pressure chamber component body is surrounded using outer sleeve 9 with end cap seal, anchor ear
It is formed in a manner that bolt 29 clamps.First end cap 10 and the second end cap 11 connect respectively with fill nipple 16, output connector 17
It connects, confining pressure inlet 26 (i.e. nitrogen injection port) is provided on the first end cap 10, for filled media and is pressurizeed.Further, produce
Go out one end of connector 17 in up-side down triangle, be installed on the second end cap 11, fill nipple 16 is mounted on the by locking nut 24
In the stepped hole of one end cap 10, in view of fill nipple 16 and output connector 17 are connected with reaction unit, then adjusting lock nut
24 can not only lock to whole, and also back-up sand rock core 8 further can be compacted.In addition, the first end cap 10, the second end cap 11
Use high temperature resistant high between outer sleeve 9, between the first end cap 10, the second end cap 11 and 16/ output connector 17 of fill nipple
The New O-ring 28 of pressure is sealed, can effectively Protection progress.
As Figure 7-8, in a kind of combustion drive forward position thermal compensation tracking test device disclosed in the present embodiment, also
Including mounting seat, mounting seat includes steelframe 33 and rotating turret 32, and rotating turret 32 is mounted on steelframe 33, and confining pressure chamber component leads to
It crosses pipe collar to correspond on rotating turret 32, wherein pipe collar includes the first pipe collar 30 and the second pipe collar 31, fixes from both ends respectively
Confining pressure chamber component is installed.Further, multiple load-carrying castors 36 are also equipped on steelframe 33, for moving；Load-carrying castor 36 with
The junction of steelframe 33 is additionally provided with spring washer 34, is shaken for reducing.The setting of pedestal is for placing response device and encloses
Pressure device is coupled subject (i.e. reaction unit and confining pressure device) and rotating turret 32 by pipe collar and support base 37,
Pipe collar is clamped by bolt 29.Subject can be carried out 360 ° of rotations, rotating turret by rotating turret 32 by reducing gear 35
Locking pin assemblies 38 are designed on 32, it can be by subject in the tight /V of arbitrary angle lock, so as to simulate arbitrary stratigraphic dip.Steel
33 connecting spring washer 34 of frame and load-carrying castor 36 free pushing meanss and can reduce the vibrations of device.
In the present embodiment, set has multiple spot with the igniter 25 on fill nipple 16, specifically in crude oil inlet 23
Around be evenly arranged 4 igniters 25, this kind of sparking mode can be carried out at the same time manual firing, effectively place occur washing or or
The phenomenon that half of only burning on person cross section.
In the present embodiment, 4 phase gauge of rock core thermocouple in same tracking thermal compensation device, adjacent two tracking thermal compensation device
From very little, specifically change due to experimental provision size, can delicately sense the position in displacement of reservoir oil forward position.
Compared with prior art, a kind of combustion drive forward position thermal compensation tracking test device disclosed in this invention, has
Following advantageous effect:
1st, the multiple tracking thermal compensation devices set in chamber component of the present invention are carried out by tracking combustion drive forward position
The mode of thermal compensation reduces scattering and disappearing for heat, while reduces the interference of heat during tracking thermal compensation device simulates combustion drive,
Simulation precision is high, error is small；
2nd, by the setting of rock core thermocouple 4, wall surface thermocouple 6 and heating watt 7 in the present invention, while combustion drive is taken into account
Core temperature and exospheric temperature, the characteristics of cooperation heating watt 7 power is high, size is thin small, thermal capacitance is small, can rapidly heat up control
Temperature is scattered and disappeared with reducing heat, and sensitivity is high, temperature-controlled precision is high；
3rd, by setting pressure sensor 5 in the present invention, auxiliary confining pressure device is by the way of 8 internal pressure of back-up sand rock core is tracked
It pressurizes, prevents confining pressure is excessive from causing the deformation of inner sleeve 1 that can not use；
4th, in the present invention, on the one hand heating watt 7 is facilitated installation, is thermocouple on the other hand using the installation of circumference three-clove style
Reserved installation site；In addition carry out heating watt 7 using pulsed computer heating control mode to heat, prevent 7 heating power mistake of heating watt
It is big to cause thermal inertia big and cause overheating problem；
5th, in the present invention, cooling coil 18 is set and using by way of bottom in and top out, make the fluid of confining pressure intracavitary with
The abundant convection current of cooling water, reaches optimal cooling effect, reduces high pressure confining pressure fluid because the heat of the different generation of self gravitation point is right
Stream, the radial direction for reducing heat are transferred；
6th, in the present invention, subject can be carried out 360 degree by reducing gear 35 and rotated by rotating turret 32, on rotating turret 32
Locking pin assemblies 38 are provided with, can be tight in arbitrary angle lock by subject, so as to simulate arbitrary stratigraphic dip；
7th, in the present invention, by setting external system software, and pass through system core and compare rock core thermoelectricity on same section
The temperature of even 4 detection, and then heating watt 7 is controlled to heat, realize the automatic tracking function of thermal compensation.
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 is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of combustion drive forward position thermal compensation tracking test device, which is characterized in that including reaction unit and confining pressure device,
Described in reaction unit including strip sealing chamber component, the back-up sand rock core that is filled in the chamber component and edge
Multigroup tracking thermal compensation device of the chamber component axial direction arrangement, the reaction unit are anti-for simulating combustion drive
It should and carry out forward position tracking thermal compensation；The confining pressure device includes the sealing confining pressure chamber component of strip and is installed in the confining pressure
Positioner in chamber component, the outer wall of the confining pressure chamber component are equipped with confining pressure inlet, and the confining pressure inlet is used to note
Enter confining pressure medium；The chamber component is set in the confining pressure chamber component inside and by the positioner and the confining pressure
Chamber component is fixed；Fill nipple and output connector, the fill nipple are also separately installed at the both ends of the confining pressure chamber component
It is correspondingly connected with both ends of the output connector respectively with the chamber component, the fill nipple is used to inject viscous crude and point
Fireflood oil, the output connector are used for output viscous crude.
2. a kind of combustion drive forward position thermal compensation tracking test device according to claim 1, which is characterized in that it is described with
Track thermal compensation device includes rock core thermocouple, wall surface thermocouple and heating watt, the rock core thermocouple, wall surface thermocouple and heating
It watt is separately positioned in the chamber component, the heating watt connects respectively with the rock core thermocouple, wall surface thermocouple signal
It connects.
3. a kind of combustion drive forward position thermal compensation tracking test device according to claim 2, which is characterized in that it is described with
Track thermal compensation device further includes pressure sensor, for detecting rock core pressure, and then the confining pressure device is aided in carry out confining pressure control
System；The heating watt is set in three-clove style.
4. a kind of combustion drive forward position thermal compensation tracking test device according to claim 1 or 2, which is characterized in that also
Including cooling coil, the cooling coil is coiled in the confining pressure chamber component on the outside of the chamber component, and with mounted on institute
The cooling liquid inlet stated on confining pressure chamber component is connected with cooling liquid outlet, and the cooling coil is used to cool down.
A kind of 5. combustion drive forward position thermal compensation tracking test device according to claim 1 or 2, which is characterized in that institute
Stating positioner includes the first connecting hoop and the second connecting hoop, and first connecting hoop and second connecting hoop are installed on respectively
The both ends of the confining pressure chamber component, and be correspondingly connected with the both ends of chamber component.
6. a kind of combustion drive forward position thermal compensation tracking test device according to claim 5, which is characterized in that described
Thermal insulation layer is also filled in one connecting hoop and second connecting hoop, for heat-insulated.
A kind of 7. combustion drive forward position thermal compensation tracking test device according to claim 1 or 2, which is characterized in that institute
Stating chamber component includes inner sleeve, the first positioning clamping plug and the second positioning clamping plug, and first positioning, which clamps, blocks up
Head and the described second positioning clamp plug closure at the both ends of the inner sleeve, and first positioning clamps plug and described second
Positioning clamps plug and is correspondingly connected with respectively with the positioner.
A kind of 8. combustion drive forward position thermal compensation tracking test device according to claim 1 or 2, which is characterized in that institute
Stating confining pressure chamber component includes outer sleeve, the first end cap, the second end cap, the first anchor ear and the second anchor ear, first end cap, described
Second end cap is blocked respectively at the both ends of the outer sleeve, and is connected respectively by first anchor ear and second anchor ear fastening
It connects；The fill nipple, the output connector correspond with first end cap, second end cap install respectively.
9. a kind of combustion drive forward position thermal compensation tracking test device according to claim 1 or 2, which is characterized in that also
Including mounting seat, the mounting seat includes steelframe and rotating turret, and the rotating turret is mounted on the steelframe, the confining pressure
Chamber component is corresponded to by pipe collar and is mounted on the rotating turret.
10. a kind of combustion drive forward position thermal compensation tracking test device according to claim 9, which is characterized in that described
Multiple load-carrying castors are also equipped on steelframe, for moving；The junction of the load-carrying castor and the steelframe is additionally provided with bullet
Spring washer shakes for reducing.
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| CN201810123470.5A CN108071379A (en) | 2018-02-07 | 2018-02-07 | A kind of combustion drive forward position thermal compensation tracking test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112459756A (en) * | 2020-11-24 | 2021-03-09 | 北京科技大学 | Visualization model, visualization device and visualization method for gas overlap phenomenon |
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| CN105044312A (en) * | 2015-07-22 | 2015-11-11 | 西南石油大学 | High-temperature and high-pressure thermal tracking compensation heat insulation static oxidization and dynamic oxidization displacement device |
| CN105527409A (en) * | 2016-01-07 | 2016-04-27 | 西南石油大学 | High-temperature high-pressure heat-insulated oxidation experiment system and method |
| CN205280716U (en) * | 2016-01-07 | 2016-06-01 | 西南石油大学 | High pressure is annotated atmospheric oxidation fuel factor and is detected tracking test device |
| CN208153003U (en) * | 2018-02-07 | 2018-11-27 | 北京永瑞达科技有限公司 | A kind of combustion drive forward position thermal compensation tracking test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105044312A (en) * | 2015-07-22 | 2015-11-11 | 西南石油大学 | High-temperature and high-pressure thermal tracking compensation heat insulation static oxidization and dynamic oxidization displacement device |
| CN105527409A (en) * | 2016-01-07 | 2016-04-27 | 西南石油大学 | High-temperature high-pressure heat-insulated oxidation experiment system and method |
| CN205280716U (en) * | 2016-01-07 | 2016-06-01 | 西南石油大学 | High pressure is annotated atmospheric oxidation fuel factor and is detected tracking test device |
| CN208153003U (en) * | 2018-02-07 | 2018-11-27 | 北京永瑞达科技有限公司 | A kind of combustion drive forward position thermal compensation tracking test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112459756A (en) * | 2020-11-24 | 2021-03-09 | 北京科技大学 | Visualization model, visualization device and visualization method for gas overlap phenomenon |
| CN112459756B (en) * | 2020-11-24 | 2021-09-03 | 北京科技大学 | Visualization model, visualization device and visualization method for gas overlap phenomenon |
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