CN104790944B - One kind is used for in-situ combustion heavy oil recovery pitch oil reservoir physical simulation experiment device - Google Patents
One kind is used for in-situ combustion heavy oil recovery pitch oil reservoir physical simulation experiment device Download PDFInfo
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- CN104790944B CN104790944B CN201510075941.6A CN201510075941A CN104790944B CN 104790944 B CN104790944 B CN 104790944B CN 201510075941 A CN201510075941 A CN 201510075941A CN 104790944 B CN104790944 B CN 104790944B
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 96
- 239000003921 oil Substances 0.000 title claims abstract description 42
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 239000000295 fuel oil Substances 0.000 title claims abstract description 12
- 238000004088 simulation Methods 0.000 title claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 52
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 29
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 15
- 238000005554 pickling Methods 0.000 claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000005864 Sulphur Substances 0.000 claims 1
- 229910052791 calcium Inorganic materials 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 239000000470 constituent Substances 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000010304 firing Methods 0.000 abstract description 2
- 230000000704 physical effect Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 abstract description 2
- 235000019198 oils Nutrition 0.000 description 36
- 238000002347 injection Methods 0.000 description 12
- 239000007924 injection Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 238000007789 sealing Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 239000010779 crude oil Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 239000011295 pitch Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000003027 oil sand Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000010793 Steam injection (oil industry) Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 235000021388 linseed oil Nutrition 0.000 description 2
- 239000000944 linseed oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000003079 shale oil Substances 0.000 description 2
- 230000005619 thermoelectricity Effects 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004364 calculation method Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
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- 239000000839 emulsion Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
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- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012332 laboratory investigation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
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- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
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- 238000000197 pyrolysis Methods 0.000 description 1
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- 239000008400 supply water Substances 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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
- 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
-
- 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)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
One kind is used for in-situ combustion heavy oil recovery pitch oil reservoir physical simulation experiment device, nitrogen pot connects pneumatic filter by pipeline respectively with air tank, pneumatic filter connects first piston container, water tank and steam generator are also connected with first piston container, second piston container is also connected with steam generator, steam generator connection burning tube assembly, burning tube assembly connects back to pressure valve, back-pressure valve connects the first separator, condenser of the first separator connection with valve K, condenser connects pickling tank, the pickling tank other end connects calcium sulfate drying chamber, the calcium sulfate drying chamber other end connects oxygen detector, oxygen detector connects gas chromatograph, mass flowmenter, first pressure sensor, second pressure sensor and wet gas flow meter are all connected with data-signal converter, data-signal converter connects computer.The present invention is available for rock constituents and the changing rule of physical property before and after the temperature before and after observation stratum firing temperature, fireflood leading edge, pressure Distribution Pattern, fireflood.
Description
Technical field
The present invention relates to petroleum works and technology field, and in particular to one kind is used for in-situ combustion heavy oil recovery pitch
Reservoir physical simulation experimental provision.
Background technology
Combustion in situ is one of important method for improving oil recovery factor, belongs to heating exploitation technology.It is to utilize oil reservoir
The part pyrolysis product of itself makees fuel, heat of constantly burning, and by the effect of heating power and other comprehensive driving forces, realizes and improves
The purpose of recovery ratio.Combustion in situ initially conception is to improve the oil recovery factor of heavy crude reservoir.This method is applied not only to improve thick
Oil, oil-sand, pitch oil recovery, and it is suitable for middle matter and light oil reservoirs crude oil production.
Situ combustion technology originates from 1911, is formally proposed using heating power or note early in J.O. Levi's in 1917
The method of solvent, crude oil in displacement stratum is to improve the concept of recovery ratio.
Nineteen twenty-three Wolcott and Howard make oil reservoir in underground combustion process it will also be appreciated that inject air into oil reservoir
Key is to burn a part of crude oil, produces heat to reduce viscosity, while produce the driving force of displacement crude oil.Theirs is this
Understanding has applied for United States Patent (USP) in nineteen twenty-three.Nineteen forty-seven has started laboratory in-house laboratory investigation.Into after the 1950s,
The petroleum resources in the U.S. are day by day exhausted, and new oil field exploration success ratio reduces, this new technology is just widely paid close attention to.From 1951
Year starts, and each oil company expands a series of experimental study in oil field so that situ combustion technology has obtained quickly
Development.
An earliest combustion in situ field test is Bert Le Siweier of the nineteen forty-two in U.S. Oklahoma in the world
What oil field carried out.After the fifties, according to statistics, the U.S. has carried out a combustion in situ project more than 70.In addition also have the former Soviet Union,
More than 40 countries such as Holland, Romania, Hungary, Germany, India have successively carried out the related work of combustion in situ oil recovery.
Successively combustion in situ examination is carried out in oil fields such as Xinjiang, Yumen, triumph, Jilin and the Liaohe River from 1958 in China
Test research, because being limited by prevailing condition, situ combustion technology makes way for steam injection recovery, China field application until mesh
It is preceding also few in number.
For steam injection recovery, though the requirement of combustion in situ oil-extraction method complex process, technical conditions is harsher,
Show its distinctive superiority：（1）Combustion in situ oil-extraction method has oil displacement efficiency height (typically up to 80%~90%)；（2）Oil
Hide wide adaptation range (from oil sheet to thick oil pay, from shallow oil reservoir to deep fat, from thin oil to viscous crude, and developed oil reservoir)；
（3）Injectant-air used in it grows on trees；（4）What combustion in situ was burnt up is in crude oil about 10% heavy constituent, is improved
The property of remaining oil；（5）The heat of combustion in situ produces on the spot, higher than the heat utilization rate of steam injection, and can save ground
Face and the investment of thermally insulating the borehole measure.
Since combustion in situ is a kind of oil production method with obvious technical advantage and potentiality, there is oil reservoir accommodation
Extensively, the advantage that material resource is sufficient, recovery ratio is high, cost is low.But since combustion in situ mechanism is sufficiently complex, combustion in situ reservoir engineering
Also particularly the burning occurred in reservoir and oil displacement process are lacked directly perceived there are many problems in design and mining site dynamic management
Accurately understanding, it is difficult to take effective means accurate judgement underground combustion situation, combustion in situ leading edge is monitored and controlled.For depth
Enter to study the inherent mechanism during oil layer ignition, often will be by laboratory physical simulation experiment device.Pass through one-dimensional physics mould
Type experimental provision can obtain unit volume oil-sand sedimentation of fuel amount, unit volume in combustion in situ oil displacement efficiency and combustion process
The parameters such as oil-sand oxygen demand, air/oil ratio, can also calculate different combustion in situ stage burnings with leading edge by experimental data
Fltting speed, high-temperature oxydation（Burning）Reactive kinetics parameters, can also be directed to gas injection speed, gas injection pressure, crude oil property, hole
The responsive parameters such as gap characteristic carry out contrast experiment, and optimization note adopts parameter.
The content of the invention
In order to improve the nontraditional reservoir recovery ratio such as viscous crude, pitch, oil-sand, shale oil, establish indoor a kind of for burning
Reservoir exploitation heavy oil asphalt reservoir physical simulation experimental provision, can systematically obtain the understanding of the one-dimensional baked wheaten cake of oil reservoir, in depth
Study the mechanism such as in-situ combustion heavy oil recovery, oil-sand, pitch and shale oil.
The technical solution adopted by the present invention is：One kind is used for in-situ combustion heavy oil recovery pitch oil reservoir physical simulation experiment and fills
Put, including nitrogen pot and air tank, nitrogen pot connect pneumatic filter by pipeline respectively with air tank, and on every pipeline
Equipped with valve A, pneumatic filter connection first piston container, and valve B is equipped between pneumatic filter and first piston container,
Water tank and steam generator are also connected with first piston container, and valve C is equipped between first piston container and water tank, the
Mass flowmenter is equipped between one piston container and steam generator, valve is equipped between first piston container and mass flowmenter
D, is equipped with valve E and valve F, second piston container is also connected with steam generator between mass flowmenter and steam generator,
And valve G is equipped between steam generator and second piston container, second piston container connection constant pressure constant speed pump, and second piston
Valve H, steam generator connection burning tube assembly, and steam generator and combustion tube group are equipped between container and constant pressure constant speed pump
First pressure sensor and valve I are equipped between part, burning tube assembly connects back to pressure valve, and back-pressure valve connects the first separator, the
One separator connects the second separator, and valve J is equipped between the first separator and the second separator, and the connection of the second separator is collected
Graduated cylinder, condenser of the first separator connection with valve K, condenser connection pickling tank, is equipped between condenser and pickling tank
Second pressure sensor and valve L, the connection of the pickling tank other end are equipped with calcium sulfate drying chamber, and pickling tank and calcium sulfate drying chamber
Between be equipped with valve M, connect wet gas flow meter equipped with the calcium sulfate drying chamber other end, and equipped with calcium sulfate drying chamber and wet
Valve N, wet gas flow meter connection oxygen detector, oxygen detector connection gas-chromatography are equipped between formula gas flowmeter
Instrument, is equipped with switch valve, mass flowmenter, first pressure sensor, the second pressure between wet gas flow meter and gas chromatograph
Force snesor and wet gas flow meter are all connected with data-signal converter, data-signal converter connection computer.
The burning tube assembly includes the combustion tube of outermost pressure sleeve, the connecting tube in intermediate layer and internal layer.
The length of the pressure sleeve, connecting tube and combustion tube is 87.0cm, a diameter of 15cm of pressure sleeve, even
Tube diameter is 7.0cm, a diameter of 6.0cm of combustion tube, and connecting tube is equal with the wall thickness of combustion tube.
Contain 15 equidistant apertures in the connecting tube, be uniformly distributed along pipe in 120 ° of phase differences downwards.
The inner wall of the connecting tube is connected with thermocouple, and outer wall is surrounded with Electrothermal ring.
The pressure sleeve end face has drilled through two BSP threaded holes.
Beneficial effects of the present invention：Temperature, pressure Distribution Pattern before and after observable stratum firing temperature, fireflood leading edge,
The rock constituents and changing rule of physical property, fireflood producing well output oil component and crude oil property changing rule, note before and after fireflood
Gas, petroleum production parameter correlation dynamic with fireflood and its rule, the phase of combustion zone frontal movement radius and producing well responding time
Guan Xing.
Brief description of the drawings
Fig. 1 schematic structural views of the invention.
Fig. 2 combustion tube component diagrams
In figure：1 nitrogen pot, 2 air tank, 3 pneumatic filter, 4 water tank, 5 first piston container, 6 mass flowmenter, 7 constant pressure
8 steam generator of constant speed pump, 9 first pressure sensor 10 burning tube assembly, 11 back-pressure valve, 12 first separator 13 second
Separator 14 collects 18 pickling tank of graduated cylinder 15 condenser, 16 computer, 17 data-signal converter, 19 gas chromatograph 20
24 pressure sleeve of switch valve 21 oxygen detector, 22 wet gas flow meter, 23 calcium sulfate drying chamber, 25 connecting tube 26 is fired
Burn pipe.
Embodiment
Embodiment 1, the embodiment of the present invention are as shown in Figure 1, this is used for in-situ combustion heavy oil recovery pitch oil reservoir physics
Analogue experiment installation includes nitrogen pot 1 and air tank, and nitrogen pot 1 connects pneumatic filter 3 by pipeline respectively with air tank, and
Valve A is equipped with every pipeline, pneumatic filter 3 connects first piston container 5, and pneumatic filter 3 holds with first piston
Valve B is equipped between device 5, water tank 4 and steam generator 8, and 5 He of first piston container are also connected with first piston container 5
Valve C is equipped between water tank 4, mass flowmenter 6 is equipped between first piston container 5 and steam generator 8, first piston holds
Valve D is equipped between device 5 and mass flowmenter 6, valve E and valve F is equipped between mass flowmenter 6 and steam generator 8, is steamed
Second piston container is also connected with vapour generator 8, and valve G is equipped between steam generator 8 and second piston container, second lives
Container connection constant pressure constant speed pump 7 is filled in, and valve H is equipped between second piston container and constant pressure constant speed pump 7, steam generator 8 connects
Burning tube assembly 10 is connect, and first pressure sensor 9 and valve I are equipped between steam generator 8 and burning tube assembly 10, is burnt
Tube assembly 10 connects back-pressure valve 11, and back-pressure valve 11 connects the first separator 12, and the first separator 12 connects the second separator 13, the
Valve J is equipped between one separator 12 and the second separator 13, graduated cylinder 14, the first separator 12 are collected in the connection of the second separator 13
Condenser 15 of the connection with valve K, condenser 15 connect pickling tank 18, and the second pressure is equipped between condenser 15 and pickling tank 18
Force snesor and valve L, 18 other end of pickling tank connection calcium sulfate drying chamber 23, and pickling tank 18 and calcium sulfate drying chamber 23 it
Between be equipped with valve M, 23 other end of calcium sulfate drying chamber connection wet gas flow meter 22, and calcium sulfate drying chamber 23 and wet type gas
Valve N is equipped between flowmeter body 22, wet gas flow meter 22 connects oxygen detector 21, and oxygen detector 21 connects gas phase
Chromatograph, is equipped with switch valve 20, mass flowmenter 6, first pressure sensing between wet gas flow meter 22 and gas chromatograph
Device 9, second pressure sensor and wet gas flow meter 22 are all connected with data-signal converter 17, and data-signal converter 17 connects
Connect computer 16.The burning tube assembly 10 includes outermost pressure sleeve 24, the connecting tube 25 in intermediate layer and the combustion of internal layer
Burn pipe 26.The length of the pressure sleeve 24, connecting tube 25 and combustion tube 26 is 87.0cm, pressure sleeve 24 it is a diameter of
15cm, 25 a diameter of 7.0cm of connecting tube, 26 a diameter of 6cm of combustion tube, and connecting tube 25 is equal with the wall thickness of combustion tube 26.Institute
Contain 15 equidistant apertures in the connecting tube 25 stated, be uniformly distributed along pipe in 120 ° of phase differences downwards.The connecting tube
25 inner wall is connected with thermocouple, 0~800 DEG C of temperature-measuring range, installation thermocouple be easy for sensing points just with 26 wall of combustion tube
Contact, outer wall are surrounded with Electrothermal ring, and uppermost electricity electric heater is used to light a fire, and other six are used to establish a part
26 environment of adiabatic combustion pipe, the power of each electricity electric heater is 500W.24 end face of pressure sleeve has drilled through two BSP
Threaded hole, threaded hole are the pressure release point of annular space after outlet or top flange air pressurized.
Fig. 2 provides burning 10 base assemblies of tube assembly and is made of the end plate and end part seal packing ring of stainless steel.In end plate
With three groups of circular holes are drilled through on sealing ring.The internal equidistant threaded hole of first lap 8 is for connection to bolt with fixed combustion pipe 26
Position on sealing ring.Centre one circle include 15 constant worm pich holes, be mainly used for connection thermocouple, to thermocouple provide into
Mouthful.Last outer ring 8 threaded hole is to be used for fixation pressure casing 24.The end plate of stainless steel provides for 26 produced fluid of combustion tube
Mouthful.26 bottom of combustion tube is connected to by stainless steel end plate, medium pore, sealing block.One BSP locking nut is used to fixing end
The outlet of plate and sealing block, so as to be in close contact between end plate and sealing block inside.The exposed surface of end plate inner surface is somewhat
Shape is a conical surface, its relatively horizontal orientation has 7 ° of inclination angle.This can prevent from producing liquid in operating process
Accumulation.The mesh sieve net of 100 mesh ~ 200 is fixed on conical surface, prevents from shaking out.
Thermocouple is nichrome pipe, is loaded with 15 thermocouples.It is distributed along 26 central shaft of combustion tube so that internal thermoelectricity
Contact is coupled to be in same level with exterior thermocouple contact point.Thermocouple is wired to electrical control panel.
The radial symmetry gradient of whole combustion tube 26 passes through outer wall and axial paired thermocouple measurement.
Annular space filling fine grained thermal insulation material-vermiculite between connecting tube 25 and pressure sleeve 24.26 liang of combustion tube
The Sindanyo heat-insulating and sealing block at end can also reduce the axial heat loss for being transmitted to closing panel.Asbestos compound inslation
The effect of material heat-insulating and sealing block, vermiculite and insulation blanket is to reduce the thermal loss of combustion experiment.Rubber asbestos packing ring, heatproof
500 DEG C, the top and bottom of silicon rubber base sealed compound sealing combustion pipe 26.
Using metering pump, supply water from piston container 5 and enter steam generator 8, be injected into combustion tube 26.Go out fluid from
Combustion tube 26 flows through back-pressure valve 11, continues to flow downward.The effect of back-pressure valve 11 is to be used to establish gas flow needed for combustion tube 26
And operating pressure.Back-pressure valve 11 prevents influence of any operation to subsequent flowing in combustion tube 26.It is placed in the first separator 12
Input end, prevent superpressure in the first separator 12.Established using back-pressure valve 11 in the port of export required steady in the first separator 12
Determine low-pressure.Gas flows through the separation that condenser 15 realizes lighter hydrocarbons in output gas from the first separator 12.Can be with using ice bath
Realize that output gas-liquid mixture efficiently separates.15 output gas of condenser can be measured by wet flow indicator.Efficiently meter
The arrival end that valve N is installed on wet flow indicator is measured, for maintaining the constant flow rate of output gas.Gas after measurement is arranged to logical
Wind cupboard.Sampling line is connected on discharge pipe, is analyzed to carry out gas chromatograph 19 to output gas online.
Oxygen detector 21 is used for monitoring output gas oxygen content.Oxygen detector 21 is connected to a controlling alarm
Device, alarm signal can be produced when oxygen level exceedes preset value in the gas of output.Two independent gas chromatographs 19 are used
In labor product fluid and gas.One of to be equipped with thermal conductivity detector (TCD), another is equipped with cual-flame ionization detector.
Gas chromatograph 19 is equipped with constant gas flow controller easy to loading and make-up gas.This causes the instrument to be adapted to apply hair
Capillary column.The instrument has programmable controller, and post case temperature can be allowed to realize linear temperature in the range of 35-500 DEG C
Change or thermoisopleth operation.The glass capillary column of 50m（G-SCOT）Equipped with OV101 as stationary phase, for analyzing liquid-like
Product.Up to optimal capillary energy, to use Splitless injecting samples system（SIS）, it is mainly designed for G-SCOT columns.The work(of SIS
Can minimize effective dead volume by reducing the amount of capacity of G-SCOT columns in injecting sample.
Gas chromatograph 19 with Thermal Conductivity is used for on-line analysis output gas.This is to pass through spherocarb80/
100 chromatographic columns are realized.For separating complicated gas.Other analytical instrument include Hakke RS6000 rheometer measurement outputs
Front and rear viscosity of crude, Anton Paar digital densimeters are used for analyzing product fluid density.
Embodiment 2, with 0.015sm3/ hr speed and 140kPa inlet pressures injection nitrogen, to measure oozing for sandpack column
Saturating rate.This process is continued until inner air tube all by displacement.Produced using oxygen analyser and the detection of gas chromatograph 19
When going out in thing to contain oxygen, electric heater is opened, 26 temperature of combustion tube uniformly rises to 70 DEG C.Nitrogen continues flow through burning at this time
Pipe 26, opens igniter, and upper strata temperature is gradually increased to 300 DEG C.Nitrogen injection stops, and immediately begins to injection air.This process
Ensure that crude oil rapid-ignition occurs, to eliminate low-temperature oxidation effect.When fired state is determined, on model end face temperature is quick
Rise.This can also be declined suddenly by oxygen content confirms with the increase of carbon monoxide and CO 2 waste gas concentration.Light a fire
Cheng Hou, inlet flow control valve door I and back-pressure valve 11 are used for establishing required condition, i.e. gas injection pressure and speed.This stage,
The heat of input igniter gradually makes inlet temperature remain constant.Other thermocouples by keeping respective tube wall temperature at 350 DEG C, with
Position part adiabatic condition in different combustion fronts is provided.It is all to test related data, 26 wall of combustion tube and axial temperature
Distribution, import export pressure, output gas flow and composition are all intra-record slack byte 15-30min.In addition, running check separator
With condenser 15, the generation of the first drop of liquid is observed.Caused fluidic compartment 30-45 min, which are collected in measuring cup, to be claimed
Weight.
Water is injected with pre-set velocity, once stablizing combustion front reaches two or three thermocouple interval locations, stops note
Water.
The whole combustion period of every group of test is monitored closely.Also needing to, which ensures that combustion front is stablized, promotes.Work as combustion front
Near the bottom of the pipe during last axial thermocouple, experiment stops.Close thermoelectricity occasionally water pump.Gas injection is switched to nitrogen
Gas, extinguishes combustion front.The flame-out of leading edge can be confirmed by the bust of output gas CO2 concentration.Nitrogen is persistently injected, is cooled down
Combustion tube 26 is until open combustion tube 26.Finally, after combustion tube 26 is cooled to room temperature, nitrogen injection is closed, system pressure is gradual
It is down to 0.
Every group of combustion experiment terminates, and combustion tube 26 is opened from injection end.Remove back-up sand sample survey.To representative sample
Toluene extraction is carried out, determines that fluid is axially distributed.Product fluid is separated into water outlet and oil using supercentrifuge, is weighed.Such as
For fruit shape into emulsion, the content of toluene is the known quantity of addition before centrifugation.These samples are a total extraction parts, are mainly used for thing
Expect EQUILIBRIUM CALCULATION FOR PROCESS.Unpolluted oil mixes, and is analyzed, to determine density, viscosity and simulation distillation data.Experiment
All temperature, measurement and output gas component data installed in computer software by being read out.
Embodiment 3, the embodiment of the present invention are as shown in Figure 1, first, install the flange in the bottom of combustion tube 26.By two connections
The thermocouple sheath of sand blocking pipeline is prevented to be inserted into combustion tube 26 on the checkered sheet of bottom.Afterwards, combustion tube is loaded onto
26 top flange, tightens flange bolt.Then 26 mass of combustion tube is weighed.Afterwards, fill assembly is installed, is connected for flange in the bottom
The pressure test of fitting is prepared.Model 1MPa pressure leak tests 15min.Once pressure test successfully completes, ascending pipe is turned on, is fired
Burn pressure in pipe 26 and drop to atmospheric pressure.Measure about 7000g sands to be put into mixing tank, 500g water is then added, with small iron
Shovel is sufficiently stirred.Afterwards, 500g crude oil is added, allows it to be sufficiently mixed, is uniformly distributed until reaching.Final mixture is weighed, really
Determine due to loss caused by mixing.
26 flange in the bottom of combustion tube is installed.Afterwards, combustion tube 26 is fastened securely on upright position, loads 200g mixing
Thing.Using heavy metal plug sample in combustion tube 26 is tamped through thermocouple sheath.Repeat addition sample and compacting process until
The filling of combustion tube 26 is to away from top 10cm.The linseed oil that about 5ml is put at the top of sample accelerates igniting.Then, with cleaning
100 mesh sands fill combustion tube 26 to top.Sand is as heat guard so as to 26 top flange of heat affecting combustion tube that prevents to burn.
The quality for the combustion tube 26 for filling mixture is weighed, previous blank pipe quality is contrasted, determines the quality of mixture in combustion tube 26.
Load onto top flange, clamp flange bolt.Fill assembly is carefully loaded onto through thermocouple sheath, utilizes polytetrafluoro
Ethene packing ring carries out sealing fastening.26 port of export of combustion tube blocks, input end injection nitrogen, model 3MPa pressure leak tests 20min.
Once pressure test successfully carries out, combustor exit end blocks and slowly opens, and pressure is down to atmospheric pressure in pipe.Dismantle injection group
Part, installs electric igniter, is fixed on outside combustion tube 26, on the position of the same depth of linseed oil.Then it is combustion tube 26 is small
Heart is put into vacuum tube, and vacuum tube tilts 30 ° in the horizontal direction, more preferably to manipulate combustion tube 26.26 bottom of combustion tube
Flange is wrapped up with heat-insulating material, loads onto vacuum tube flange in the bottom.Electric igniter is connected to the ignition terminal of vacuum tube top flange
On, fasten ignition terminal.Fill assembly is placed back into their original positions, and fixed and mobile hot galvanic couple sheath is inserted in accordingly
On thermocouple sheath.Polytetrafluoroethylene gasket is fastened on the port of export and injection connector, for sealing vacuum tube and combustion tube
26.Vacuum tube is placed in upright position, and the outlet of combustion tube 26 is fastened on output part.Mobile hot galvanic couple sheath is installed on mechanical arm
On, all thermocouples are connected in their terminal.Vacuum tube about -0.010MPa pressure tests 30min.Pipeline is injected to connect
It is connected on corresponding component, vacuum tube electric heater is set in 60 DEG C, constant temperature 12h, so that sand mixture temperature equalization.One temperature
The belt electric heater that degree is set in 30 DEG C is looped around on separator, it is ensured that output oil successfully flows through separator and enters sampling
Bottle.
Temperature, the pressure of combustion in situ reaction zone can intuitively be measured by being tested by combustion tube 26, and component is distributed, is anti-
Answer propagation direction and speed, the Liquid output in area etc..
Claims (4)
1. one kind is used for in-situ combustion heavy oil recovery pitch oil reservoir physical simulation experiment device, it is characterised in that：Including nitrogen pot
And air tank, nitrogen pot connects pneumatic filter by pipeline respectively with air tank, and valve A, gas are equipped with every pipeline
Body filter connects first piston container, and valve B, first piston container are equipped between pneumatic filter and first piston container
On be also connected with water tank and steam generator, and valve C is equipped between first piston container and water tank, first piston container with
Mass flowmenter is equipped between steam generator, valve D, mass flowmenter are equipped between first piston container and mass flowmenter
Valve E and valve F is equipped between steam generator, second piston container, and steam generator are also connected with steam generator
Valve G, second piston container connection constant pressure constant speed pump, and second piston container and constant pressure and constant are equipped between second piston container
Be equipped with valve H between speed pump, steam generator connection burning tube assembly, and equipped with the between steam generator and burning tube assembly
One pressure sensor and valve I, burning tube assembly connect back to pressure valve, and back-pressure valve connects the first separator, the connection of the first separator
Second separator, is equipped with valve J between the first separator and the second separator, the second separator, which connects, collects graduated cylinder, first point
From condenser of the device connection with valve K, condenser connection pickling tank, is equipped with second pressure and senses between condenser and pickling tank
Device and valve L, pickling tank other end connection calcium sulfate drying chamber, and valve M, sulphur are equipped between pickling tank and calcium sulfate drying chamber
The sour calcium drying chamber other end connects wet gas flow meter, and valve is equipped between calcium sulfate drying chamber and wet gas flow meter
N, wet gas flow meter connection oxygen detector, oxygen detector connection gas chromatograph, wet gas flow meter and gas phase
Switch valve, mass flowmenter, first pressure sensor, second pressure sensor and wet gas flow meter are equipped between chromatograph
It is all connected with data-signal converter, data-signal converter connection computer；The burning tube assembly includes outermost pressure
The combustion tube of casing, the connecting tube in intermediate layer and internal layer；Contain 15 equidistant apertures in the connecting tube, it is downward along pipe
It is uniformly distributed in 120 ° of phase differences；The inner wall of the connecting tube is connected with thermocouple, and outer wall is surrounded with Electrothermal ring.
2. according to claim 1 be used for in-situ combustion heavy oil recovery pitch oil reservoir physical simulation experiment device, its feature
It is：The length of the pressure sleeve, connecting tube and combustion tube is 87.0cm, a diameter of 15cm of pressure sleeve, connection
Pipe diameter is 7.0cm, a diameter of 6cm of combustion tube, and connecting tube is equal with the wall thickness of combustion tube.
3. according to claim 1 be used for in-situ combustion heavy oil recovery pitch oil reservoir physical simulation experiment device, its feature
It is：The pressure sleeve end face has drilled through two BSP threaded holes.
4. according to claim 1 be used for in-situ combustion heavy oil recovery pitch oil reservoir physical simulation experiment device, its feature
It is：The burning bottom of the tube assembly component is made of the end plate and end part seal packing ring of stainless steel.
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| CN107780911B (en) * | 2016-08-24 | 2021-04-30 | 中国石油天然气股份有限公司 | Oil extraction experimental device |
| CN106483246A (en) * | 2016-09-27 | 2017-03-08 | 北京理工大学 | A kind of combustion in situ chemic ignition experimental rig |
| CN109424339B (en) * | 2017-08-25 | 2021-01-29 | 中国石油天然气股份有限公司 | Oil production simulator |
| CN108222898B (en) * | 2017-12-05 | 2021-06-08 | 华南理工大学 | Device and method for efficiently determining distribution of thick oil pyrolysis products |
| CN114382452B (en) * | 2020-10-21 | 2024-03-26 | 中国石油天然气股份有限公司 | Experimental device for simulation viscous crude annotates auxiliary steam throughput of nitrogen gas |
| CN114354833B (en) * | 2021-11-25 | 2024-04-12 | 中国石油天然气股份有限公司 | Reservoir fluid oxidation kinetic parameter determination device and method |
| CN115825286A (en) * | 2022-12-26 | 2023-03-21 | 东北石油大学 | Experimental device and method for in-situ thermal cracking of solvent-assisted thickened oil to coke |
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Inventor after: Zhao Fajun Inventor after: Xi Changfeng Inventor after: Liu Yongjian Inventor after: Wu Jingchun Inventor after: Ma Haicheng Inventor after: Wang Yunlong Inventor after: Shi Yansong Inventor before: Zhao Fajun Inventor before: Liu Yongjian Inventor before: Wu Jingchun Inventor before: Ma Haicheng Inventor before: Wang Yunlong Inventor before: Shi Yansong |
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Effective date of registration: 20210520 Address after: 163000 99 Xuefu street, hi tech Industrial Development Zone, Daqing, Heilongjiang Patentee after: NORTHEAST PETROLEUM University Patentee after: PetroChina Company Limited Address before: No. 199 Development Road, Daqing High-tech Development Zone, Heilongjiang Province, 163000 Patentee before: NORTHEAST PETROLEUM University |