CN202788783U - Top air injection gravity assisted flooding oil extraction two-dimensional physical simulation experiment system - Google Patents
Top air injection gravity assisted flooding oil extraction two-dimensional physical simulation experiment system Download PDFInfo
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- CN202788783U CN202788783U CN 201220214531 CN201220214531U CN202788783U CN 202788783 U CN202788783 U CN 202788783U CN 201220214531 CN201220214531 CN 201220214531 CN 201220214531 U CN201220214531 U CN 201220214531U CN 202788783 U CN202788783 U CN 202788783U
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- 238000004088 simulation Methods 0.000 title claims abstract description 31
- 238000002347 injection Methods 0.000 title claims abstract description 29
- 239000007924 injection Substances 0.000 title claims abstract description 29
- 230000005484 gravity Effects 0.000 title claims abstract description 23
- 238000000605 extraction Methods 0.000 title description 3
- 239000007789 gas Substances 0.000 claims abstract description 112
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000012544 monitoring process Methods 0.000 claims abstract description 39
- 239000003345 natural gas Substances 0.000 claims abstract description 33
- 239000008398 formation water Substances 0.000 claims abstract description 28
- 239000001307 helium Substances 0.000 claims abstract description 18
- 229910052734 helium Inorganic materials 0.000 claims abstract description 18
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 90
- 239000010779 crude oil Substances 0.000 abstract description 13
- 230000015572 biosynthetic process Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract 2
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- 230000008676 import Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000002131 composite material Substances 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000003643 water by type Substances 0.000 description 4
- 230000005465 channeling Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 2
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- 241000184339 Nemophila maculata Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000012332 laboratory investigation Methods 0.000 description 1
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Abstract
The utility model discloses an air gravity is annotated at top to assist drives oil recovery two dimension physical simulation experiment system, the system includes: the system comprises a sample preparation injection system, a simulation system, a production system, a PC monitoring system and a gas chromatograph; wherein, the sample preparation injection system comprises: an ISO high-precision metering pump, a dead oil piston container, a natural gas piston container and a sample proportioning device; the simulation system includes: the system comprises an ISO high-precision metering pump, a formation water piston container, an air piston container, a six-way valve, a high-pressure bin, an inclination angle marker and a two-dimensional sand-filling model; the production system comprises: a separator, a helium tank and a gas meter; the PC monitoring system includes: PC monitoring computer and gas flow mass controller. Adopt the utility model discloses a test system can guarantee sample and formation crude oil uniformity for the experimental result is more true reliable, and true simulation stratum structure characteristic possesses output system sample on-line monitoring function, has improved real-time, degree of automation.
Description
Technical field
The utility model is the auxiliary two-dimentional physical simulation experiment of the oil recovery system of driving of a kind of top air injection gravity about the oil development field concretely
Background technology
Auxiliary the stablizing of crestal gas injection gravity drives one of very potential method that is considered to this class oil recovery of Effective Raise, and its recovery ratio is the highest in all non-phase-mixing drivings, or even the twice of water drive.Owing to have density contrast between injected gas and the crude oil, can be by the reasonable rate of oil production of control, utilize gravity stable to keep the larger crude oil of the less gas of density and density to separate, suppress the gas fingering when forming with convenient fingering wish, avoid horizontal gas injection to drive the low and easy shortcoming such as has channeling of gas viscosity fingering and gravity segregation effect produce in the process expulsion efficiency.In addition, since the sixties in 20th century, many countries comprise that the countries such as the U.S., Russia all carried out the technical research of lightweight oil reservoir injection air in the world, and many deep layer light oil reservoirs have been carried out the air injection field test, have all obtained success technical and economically; Although the exploitation of light oil reservoirs low-temperature oxidation is started late in China, because the air source is wide, with low cost, be subject in recent years extensive concern, crestal gas injection and air drive to combine more can bring into play efficient, economic characteristics.
The shortcoming of light oil reservoirs air injection exploitation is to have unsafe factor, and when namely injecting air and crude oil the low-temperature oxidation reaction not occuring fully, hydrocarbon gas and oxygen mix are blasted easily in the output gas; Notes are adopted the unreasonable easier has channeling that causes of parameter, and this just is strict with and carries out relevant in-house laboratory investigation early stage, and reasonably optimizing is annotated and adopted parameter on this basis.This drives experimental technique and device has proposed new challenge window to top air injection gravity is auxiliary.
Prior art is being carried out a large amount of work aspect light oil reservoirs air injection exploitation low-temperature oxidation dynamic evaluation experimental analogy method and the device, but still there is shortcoming in prior art:
1) can not the simulated formation inclination angle, can not represent true formation condition.
What 2) use in the experimentation is dead oil, can not represent the oxidation characteristics of formation crude oil reality.
3) model pipe horizontal positioned, adjusting becomes the stratigraphic dip difficulty, can not represent true formation condition, produces easily has channeling, has reduced time result's reliability.
4) therefore this device does not consider output gaseous mixture safety problem not for the air injection design.
The utility model content
The utility model embodiment provides a kind of top air injection gravity the auxiliary two-dimentional physical simulation experiment of the oil recovery system of driving, and described experimental system comprises: sample injected system, simulation system, output system, PC monitoring system and gas chromatographicanalyzer; Wherein,
Described sample injected system comprises: ISO high-precision measuring pump, dead oil piston container, natural gas piston container and sample device, described ISO high-precision measuring pump is connected with natural gas piston container with described dead oil piston container respectively by valve, described dead oil piston container all is connected with the sample device by valve with natural gas piston container, described ISO high-precision measuring pump changes the dead oil in the dead oil piston container over to the sample device, described ISO high-precision measuring pump changes the natural gas in the described natural gas piston container over to the sample device according to PVT test steam oil ratio (SOR), set reservoir temperature and pressure by described sample device, in described sample device, form the oil of living;
Described simulation system comprises: ISO high-precision measuring pump, formation water piston container, the air slide container, six-way valve, inclination angle marking appliance and pressure sand-pack model, described ISO high-precision measuring pump is connected with the air slide container with described formation water piston container respectively by valve, described formation water piston container, air slide container and pressure sand-pack model all are connected with described six-way valve, described pressure sand-pack model has the heating, temperature keeping system outward, integral body places in the high-pressure chamber, the pointer of described inclination angle marking appliance is fixed in described pressure sand-pack model, and the six-way valve of described simulation system is connected with the sample device of described sample injected system by pipeline;
Described output system comprises: eliminator, helium tank and gas dosing meter, described eliminator is connected with the gas quantifier with described helium tank respectively by pipeline, and described eliminator is connected with the pressure sand-pack model of described simulation system by valve and pipeline;
Described PC monitoring system comprises: PC monitoring computer and gas flow quality controller, described PC monitoring computer is connected with the gas flow quality controller by data wire, described gas flow controller is connected by the helium tank of pipeline with described output system, and described PC monitoring computer is connected by the gas dosing meter of data wire with described output system;
Described gas chromatographicanalyzer is connected by the gas dosing meter of pipeline with described output system.
Preferably, described sample injected system also comprises: manual pump and pressure meter, and described manual pump is connected with described sample device by a valve, and described pressure meter is arranged at the manual pump port of export.
Described sample injected system also comprises: mass-flow gas meter, described mass-flow gas meter is connected with natural gas piston container, and is connected with described sample device by valve.
Described model system also comprises: counterbalance valve, described pressure sand-pack model is connected by the eliminator of counterbalance valve with described output system.Described pressure sand-pack model is provided with form.
Adopt pilot system of the present utility model, can simulate the highest reservoir pressure 25MPa, 200 ℃ of simulating oil deposit maximum temperatures, guarantee sample and in-place oil uniformity, so that experimental result is more true and reliable, real simulation stratigraphic structure feature, use band form pressure sand-pack model, can intuitively observe the gas displacing front, possesses output gas automatic dilution function, prevent that the indoor oil experiment output gas of living from reaching the danger that explosion limit causes blast, possess output system sample on-line monitoring function, improved real time implementation, automaticity.
For above and other purpose of the present utility model, feature and advantage can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the auxiliary structured flowchart that drives the two-dimentional physical simulation experiment of oil recovery system of the utility model top air injection gravity;
Fig. 2 is the auxiliary two-dimentional physical simulation experiment system of systems structure chart that recovers the oil that drives of the utility model top air injection gravity;
Fig. 3 is the auxiliary structural representation that drives pressure sand-pack model in the two-dimentional physical simulation experiment of the oil recovery system of the utility model top air injection gravity.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
This valve embodiment provides a kind of top air injection gravity the auxiliary two-dimentional physical simulation experiment of the oil recovery system of driving, and this system comprises: sample injected system, model system, output system, PC monitoring system and gas chromatographicanalyzer;
The sample injected system comprises: ISO high-precision measuring pump, dead oil piston container, natural gas piston container and sample device, ISO high-precision measuring pump is connected with natural gas piston container with dead oil piston container respectively by valve, dead oil piston container all is connected with the sample device by valve with natural gas piston container, ISO high-precision measuring pump changes the dead oil in the dead oil piston container over to the sample device, ISO high-precision measuring pump changes the natural gas in the natural gas piston container over to the sample device according to PVT test steam oil ratio (SOR), set reservoir temperature and pressure by described sample device, in described sample device, form the oil of living;
Model system comprises: ISO high-precision measuring pump, formation water piston container, the air slide container, six-way valve, inclination angle marking appliance and pressure sand-pack model, ISO high-precision measuring pump is connected with the air slide container with formation water piston container respectively by valve, formation water piston container, air slide container and pressure sand-pack model all are connected with six-way valve, pressure sand-pack model is arranged on the interior bearing of high-pressure chamber, the pointer of inclination angle marking appliance is fixed on the described pressure sand-pack model, the indicating dial of inclination angle marking appliance is fixed on the bearing, and the six-way valve of model system is connected with the sample device of described sample injected system by pipeline;
The output system comprises: eliminator, helium tank and gas dosing meter, and eliminator is connected with the gas quantifier with helium tank respectively by pipeline, and eliminator is connected with the pressure sand-pack model of described simulation system by valve and pipeline;
The PC monitoring system comprises: PC monitoring computer and gas flow quality controller, the PC monitoring computer is connected with the gas flow quality controller by data wire, gas flow controller is connected by the helium tank of pipeline with the output system, and the PC monitoring computer is connected with the gas dosing meter of output system by data wire;
Gas chromatographicanalyzer is connected with the gas dosing meter of output system by pipeline.
As shown in Figure 1, be the structured flowchart of the disclosed experimental facilities of the utility model, the air injection gravity auxiliary two-dimentional physical simulation experiment device that recovers the oil that drives in top of the present utility model comprises: sample injected system 101, model system 102, PC monitoring system 103, output system 104 and analytical system 105.
Sample injected system 101 in the present embodiment is comprised of ISCO high-precision measuring pump, dead oil piston container, natural gas piston container, mass-flow gas meter, sample device, pressure meter and manual pump.Wherein, dead oil piston container is connected respectively the import of sample device upper end by valve and is connected with ISCO high-precision measuring pump, natural gas piston container is connected with ISCO high-precision measuring pump, and connect with mass-flow gas meter, the mass-flow gas meter series connection connects by the valve import of being connected with the sample device again, the lower end import is connected manual pump with the sample device, and the outlet of sample device is connected with six-way valve through pipeline.Pressure meter is arranged on the connecting line between manual pump and the sample device.
Model system is comprised of ISCO high-precision measuring pump, valve, formation water piston container, air slide container, mass-flow gas meter, six-way valve, pressure sand-pack model, inclination angle marking appliance and counterbalance valve.Formation water piston container is connected with six-way valve with ISCO high-precision measuring pump respectively by valve, the air slide container is connected with ISCO high-precision measuring pump, and be connected with six-way valve by mass-flow gas meter series connection, six-way valve is connected pressure sand-pack model connection suitable for reading by pipeline with high-pressure chamber, pressure sand-pack model end opening configuration valve and counterbalance valve are connected with the output system through pipeline.Wherein, the inclination angle marking appliance in the high-pressure chamber is comprised of blister formula level gauge, pointer, dial, and pointer and pressure sand-pack model are fixed together.
The PC monitoring system is comprised of PC monitoring computer, gas mass flow controller.Gas mass flow controller is connected with the PC monitoring computer by data wire.
The output system takes into account pipeline by eliminator, gas dosing and forms.
The gas dosing meter is connected the PC monitoring computer by data wire and is connected with the PC monitoring system; Eliminator, gas dosing meter connect by pipeline.
Analytical system is comprised of gas chromatographicanalyzer.
Gas chromatographicanalyzer is connected the gas dosing meter and is connected by pipeline with the output system, the gaseous sample that the output system generates is analyzed.
As shown in Figure 2, drive the schematic diagram of the two-dimentional physical simulation experiment device that recovers the oil for the disclosed top of the utility model one embodiment air injection gravity is auxiliary.
The sample injected system is comprised of ISCO high-precision measuring pump 1, valve 2, valve 3, dead oil piston container 4, natural gas piston container 5, mass-flow gas meter 7, valve 8, valve 9, sample device 10, pressure meter 11, manual pump 12, valve 13.
Dead oil piston container 4 is connected with ISCO high-precision measuring pump respectively by valve 2, valve 6 and is connected the upper end import with the sample device and connects, natural gas piston container 5 is connected series connection and is connected the upper end import with the sample device respectively at ISCO high-precision measuring pump 1 and connects with mass-flow gas meter, manual pump 12 is connected the lower end import and is connected with the sample device, 10 outlets of sample device are connected connection through pipelines with six-way valve.According to testing gas-oil ratio according to oil field PVT, control ISCO high-precision measuring pump 1, a certain amount of natural gas is changed in the sample device 10 by natural gas piston container 5, and a certain amount of dead oil changed in the sample device 10 by dead oil piston container 4, the temperature of setting sample device 10 is reservoir temperature, pressure is reservoir pressure, so that sample device 10 fully stirs, so that fully dissolving, natural gas forms the oily oil sample of living in dead oil, it is composite to finish in-place oil, thereby realize that experimental system adopts the oil sample of living, guarantee the uniformity of oil sample sample and bottom crude oil, and by above-mentioned setting to sample device pressure and temperature, so that native system, can simulate the highest reservoir pressure 25MPa, 200 ℃ of simulating oil deposit maximum temperatures.
In actual applications, sample system and model system can public ISCO high-precision measuring pumps, shown in the embodiment of Fig. 2.
Model system is comprised of ISCO high-precision measuring pump 1, valve 14, formation water piston container 16, valve 15, air slide container 17, mass-flow gas meter 18, six-way valve 19, high-pressure chamber 24, pressure sand-pack model 21, valve 25, differential pressure indicator 22, inclination angle marking appliance 23 and counterbalance valve 26 in the present embodiment.
Formation water piston container 16 is connected with ISCO high-precision measuring pump respectively by valve 14 and is connected connection with six-way valve, air slide container 17 is connected series connection and is connected connection with six-way valve respectively at ISCO high-precision measuring pump 1 with mass-flow gas meter, six-way valve 19 is connected interior pressure sand-pack model 21 entrances by pipeline and is connected with high-pressure chamber, pressure sand-pack model 21 outlet configuration valve 25 and counterbalance valves 26 are connected with the output system through pipeline.By ISCO high-precision measuring pump 1 formation water in the formation water piston container 16 is changed over to pressure sand-pack model 21 saturated formation waters, counterbalance valve 25 is adjusted into reservoir pressure, by manual pump 12 oily displacement pressure sand-pack model 21 formation waters alive of composite stratum in the sample device 10 is made irreducible water saturation; Utilize air slide container 17 mesohigh air to carry out pressure sand-pack model 21 mother oil displacements by ISCO high-precision measuring pump 1.
Wherein inclination angle marking appliance 23 is comprised of blister formula level gauge 231, pointer 232, dial 233, and pointer 232 and pressure sand-pack model 21 are fixed together
The output system is comprised of eliminator 27, gas dosing meter 28 and the pipeline of carrying liqs function of measuring.
The PC monitoring system is comprised of PC monitoring computer 32, gas mass flow controller 31.
Gas dosing meter 28 is connected connection by data wire with the PC monitoring system; Gas mass flow controller 31 is connected connection by data wire with the PC monitoring system.
The eliminator of carrying liqs function of measuring, gas dosing meter 28 connect by pipeline.
Gas chromatographicanalyzer 29 is connected with extraction system gas quantifier and is connected by pipeline.
The crude oil that produces from model system enters the eliminator 27 with function of measuring, carrying out gas and oil by eliminator 27 separates, eliminator output gas is by 28 meterings of gas dosing meter, by 32 minutes gassing rates of PC monitoring computer, control gas mass flow controller 31 control dilution helium gas flows, carry out component analysis by entering gas chromatograph 29 after the helium 1:1 dilution, obtain oxidation rate and gas component result; With eliminator 27 metering oil, the water yield of function of measuring, carry out output gas automatic dilution by helium tank 30, prevent that the indoor oil experiment output gas of living from reaching explosion limit.
The disclosed experimental system of the utility model when specifically using, operates as follows:
Valve-off 6, valve 8, valve 24 are opened valve 9, utilize 20 pairs of sample injected systems of vacuum pump and model system to vacuumize 0.1MPa.
Open valve 2, valve 6 and valve 9, by ISCO high-precision measuring pump 1 a certain amount of dead oil in the dead oil piston container 4 is changed in the sample device 10 over to valve-off 6; Open valve 3, valve 8, according to according to oil field PVT test gas-oil ratio a certain amount of natural gas being changed in the sample device 10 by natural gas piston container 5, valve-off 8 and valve 9, the temperature that sets sample device 10 is reservoir temperature, pressure is reservoir pressure, so that sample device 10 fully stirs, so that fully dissolving, natural gas forms the oil sample of living in dead oil, it is composite to finish in-place oil.
By ISCO high-precision measuring pump 1 formation water in the formation water piston container 16 being carried out pressure sand-pack model 21 guarantees adequate food and formation water, counterbalance valve 25 is adjusted into reservoir pressure, by manual pump 12 oily displacement pressure sand-pack model 21 formation waters alive of composite stratum in the sample device 10 is made irreducible water saturation; Utilize air slide container 17 mesohigh air to carry out pressure sand-pack model 21 mother oil displacements by ISCO high-precision measuring pump 1.Output crude oil enters the eliminator 27 with function of measuring, output gas is by 28 meterings of gas dosing meter, by 32 minutes gassing rates of PC monitoring system, control gas mass flow controller 31 control dilution helium gas flows, carry out component analysis by entering gas chromatograph 29 after the helium 1:1 dilution, obtain oxidation rate and gas component result; Eliminator 27 metering oil, the water yield with function of measuring; Regularly get gas sample and crude oil sample analysis, until experiment finishes.
Top described in the utility model air injection gravity is assisted to drive the two-dimentional physical simulation experiment method of oil recovery and install and is comprised of sample injected system, model system, PC monitoring system, output system and analytical system.
By vacuum pump model system and sample system are vacuumized, by ISCO high-precision measuring pump a certain amount of dead oil in the dead oil piston container is changed in the sample device, according to according to oil field PVT test gas-oil ratio the natural gas in a certain amount of natural gas piston container being changed in the sample device, set reservoir temperature and pressure, form the oil of living so that natural gas fully dissolves in dead oil; By ISCO high-precision measuring pump formation water in the formation water piston container is carried out the saturated formation water of pressure sand-pack model, counterbalance valve is adjusted into reservoir pressure, by manual pump the oily displacement pressure sand-pack model formation water alive of composite stratum in the sample device is made irreducible water saturation; Utilize air slide container mesohigh air to carry out the pressure sand-pack model mother oil displacement by ISCO high-precision measuring pump.Output crude oil enters oil and gas separating system, enters gas-chromatography after output gas is diluted by helium 1:1 and carries out component analysis, obtains oxidation rate and gas component result; Separation crude oil measures and obtains oil displacement efficiency.
Embodiment is as follows in detail:
The sample injected system by ISCO high-precision measuring pump 1, valve 2, valve 3, dead oil piston container 4, natural gas piston container 5,, mass-flow gas meter 7, valve 8, valve 9, sample device 10, pressure meter 11, manual pump 12, valve 13 form.
Dead oil piston container 4 is connected with ISCO high-precision measuring pump respectively by valve 2, valve 6 and is connected the upper end import with the sample device and connects, natural gas piston container 5 is connected series connection and is connected the upper end import with the sample device respectively at ISCO high-precision measuring pump 1 and connects with mass-flow gas meter, the lower end import is connected manual pump 12 with the sample device, and sample device outlet is connected connection through pipeline with six-way valve.
Model system is comprised of ISCO high-precision measuring pump 1, valve 14, formation water piston container 16, valve 15, air slide container 17, mass-flow gas meter 18, six-way valve 19, base 24, pressure sand-pack model 21, valve 25, rolling slideway 22, support ring 23 and counterbalance valve 26.
Formation water piston container 16 is connected with ISCO high-precision measuring pump respectively by valve 14 and is connected connection with six-way valve, air slide container 17 is connected series connection and is connected connection with six-way valve respectively at ISCO high-precision measuring pump 1 with mass-flow gas meter, six-way valve 19 is connected interior pressure sand-pack model 21 entrances by pipeline and is connected with high-pressure chamber, pressure sand-pack model 21 outlet configuration valve 25 and counterbalance valves 26, be connected with the output system through pipeline, be provided with video camera (not looking out among the figure) in the high-pressure chamber.
Fig. 3 is the auxiliary structural representation that drives pressure sand-pack model in the two-dimentional physical simulation experiment of the oil recovery system of the utility model top air injection gravity, as shown in Figure 3, pressure sand-pack model 21 is reserved well head 211, peupendicular hole by horizontal well and is reserved well head 212, bearing (can 360 ° of rotations) 213, high pressure form 214, heater (not shown), attemperator (not shown) and form, pressure sand-pack model 21 and bearing 213 are fixed together, and wherein base 24 bottoms are equipped with blister formula level gauge (not shown).
The PC monitoring system is comprised of PC monitoring system 32, gas dosing meter 28, gas mass flow controller 31.
Gas dosing meter 28 is connected connection by data wire with the PC monitoring system; Gas mass flow controller 31 is connected connection by data wire with the PC monitoring system.
The output system is comprised of eliminator 27, gas dosing meter 28 and the pipeline of carrying liqs function of measuring.
The eliminator of carrying liqs function of measuring, gas dosing meter 28 connect by pipeline.
Analytical system is comprised of gas chromatographicanalyzer 29.
Gas chromatographicanalyzer 29 is connected with extraction system gas quantifier and is connected by pipeline.
Be equipped with respectively output system and analytical system one cover according to the withdrawal well number.
The five-spot pattern displacement arranges the base level, adjusts inclination angle and stratigraphic dip and coincide.
Valve-off 6, valve 8, valve 24 are opened valve 9, utilize 20 pairs of sample injected systems of vacuum pump and model system to vacuumize 0.1MPa.
Open valve 2, valve 6 and valve 9, by ISCO high-precision measuring pump 1 a certain amount of dead oil in the dead oil piston container 4 is changed in the sample device 10 over to valve-off 6; Open valve 3, valve 8, according to according to oil field PVT test gas-oil ratio a certain amount of natural gas being changed in the sample device 10 by natural gas piston container 5, valve-off 8 and valve 9, the temperature that sets sample device 10 is reservoir temperature, pressure is reservoir pressure, so that sample device 10 fully stirs, so that fully dissolving, natural gas forms the oil sample of living in dead oil, it is composite to finish in-place oil.
By ISCO high-precision measuring pump 1 formation water in the formation water piston container 16 being carried out pressure sand-pack model 21 guarantees adequate food and formation water, counterbalance valve 25 is adjusted into reservoir pressure, set temperature is reservoir temperature simultaneously, by manual pump 12 oily displacement pressure sand-pack model 21 formation waters alive of composite stratum in the sample device 10 is made irreducible water saturation; Utilize air slide container 17 mesohigh air to carry out pressure sand-pack model 21 mother oil displacements by ISCO high-precision measuring pump 1.Output crude oil enters the eliminator 27 with function of measuring, output gas is by 28 meterings of gas dosing meter, by 32 minutes gassing rates of PC monitoring system, control gas mass flow controller 31 control dilution helium gas flows, carry out component analysis by entering gas chromatograph 29 after the helium 1:1 dilution, obtain oxidation rate and gas component result; Eliminator 27 metering oil, the water yield with function of measuring; Regularly get gas sample and crude oil sample analysis, until experiment finishes.
Compared with prior art there is advantage in the technical solution of the utility model:
1) the technical solution of the utility model can be simulated the highest reservoir pressure 25MPa, 200 ℃ of simulating oil deposit maximum temperatures; 2) adopt the oil of living, guarantee sample and in-place oil uniformity, experimental result is more true and reliable; 3) pressure sand-pack model of employing adjustable inclination, real simulation stratigraphic structure feature; 4) use band form pressure sand-pack model, can intuitively observe the gas displacing front; 5) possess output gas automatic dilution function, prevent that the indoor oil experiment output gas of living from reaching the danger that explosion limit causes blast; 6) possess output system sample on-line monitoring function, improved real time implementation, automaticity.
Used specific embodiment in the utility model principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1. a top air injection gravity is assisted the two-dimentional physical simulation experiment of the oil recovery system of driving, it is characterized in that the air injection gravity auxiliary two-dimentional physical simulation experiment of the oil recovery system of driving in described top comprises: sample injected system, model system, the output system, PC monitoring system and gas chromatographicanalyzer; Wherein,
Described sample injected system comprises: ISO high-precision measuring pump, dead oil piston container, natural gas piston container and sample device, described ISO high-precision measuring pump is connected with natural gas piston container with described dead oil piston container respectively by valve, described dead oil piston container all is connected with the sample device by valve with natural gas piston container, described ISO high-precision measuring pump changes the dead oil in the dead oil piston container over to the sample device, described ISO high-precision measuring pump changes the natural gas in the described natural gas piston container over to the sample device according to PVT test steam oil ratio (SOR), set reservoir temperature and pressure by described sample device, in described sample device, form the oil of living;
Described model system comprises: ISO high-precision measuring pump, formation water piston container, the air slide container, six-way valve, high-pressure chamber, inclination angle marking appliance and pressure sand-pack model, described ISO high-precision measuring pump is connected with the air slide container with described formation water piston container respectively by valve, described formation water piston container, air slide container and pressure sand-pack model all are connected with described six-way valve, described pressure sand-pack model has the heating, temperature keeping system outward, be wholy set in the high-pressure chamber, the pointer of described inclination angle marking appliance is fixed in described pressure sand-pack model, and the six-way valve of described simulation system is connected with the sample device of described sample injected system by pipeline;
Described output system comprises: eliminator, helium tank and gas dosing meter, described eliminator is connected with the gas quantifier with described helium tank respectively by pipeline, and described eliminator is connected with the pressure sand-pack model of described simulation system by valve and pipeline;
Described PC monitoring system comprises: PC monitoring computer and gas flow quality controller, described PC monitoring computer is connected with the gas flow quality controller by data wire, described gas flow controller is connected by the helium tank of pipeline with described output system, and described PC monitoring computer is connected by the gas dosing meter of data wire with described output system;
Described gas chromatographicanalyzer is connected by the gas dosing meter of pipeline with described output system.
2. the auxiliary two-dimentional physical simulation experiment system of recovering the oil of driving of top as claimed in claim 1 air injection gravity, it is characterized in that, described sample injected system also comprises: manual pump and pressure meter, described manual pump is connected with described sample device by a valve, and described pressure meter is arranged at the manual pump port of export.
3. the auxiliary two-dimentional physical simulation experiment system of recovering the oil of driving of top as claimed in claim 1 air injection gravity, it is characterized in that, described sample injected system also comprises: mass-flow gas meter, described mass-flow gas meter is connected with natural gas piston container, and is connected with described sample device by valve.
4. the auxiliary two-dimentional physical simulation experiment system of recovering the oil of driving of top as claimed in claim 1 air injection gravity, it is characterized in that, described model system also comprises: counterbalance valve, described pressure sand-pack model is connected by the eliminator of counterbalance valve with described output system.
5. the air injection gravity auxiliary two-dimentional physical simulation experiment system of recovering the oil of driving in top as claimed in claim 1 is characterized in that described pressure sand-pack model is provided with form.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654046A (en) * | 2012-05-10 | 2012-09-05 | 中国石油天然气股份有限公司 | Top air injection gravity assisted flooding oil extraction two-dimensional physical simulation experiment system |
| CN105443080A (en) * | 2015-12-04 | 2016-03-30 | 中国石油天然气股份有限公司 | Simulation device for failure development of bottom-edge water gas-containing oil reservoir |
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2012
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654046A (en) * | 2012-05-10 | 2012-09-05 | 中国石油天然气股份有限公司 | Top air injection gravity assisted flooding oil extraction two-dimensional physical simulation experiment system |
| CN102654046B (en) * | 2012-05-10 | 2015-07-08 | 中国石油天然气股份有限公司 | Top air injection gravity assisted flooding oil extraction two-dimensional physical simulation experiment system |
| CN105443080A (en) * | 2015-12-04 | 2016-03-30 | 中国石油天然气股份有限公司 | Simulation device for failure development of bottom-edge water gas-containing oil reservoir |
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