CN205280716U - High pressure is annotated atmospheric oxidation fuel factor and is detected tracking test device - Google Patents
High pressure is annotated atmospheric oxidation fuel factor and is detected tracking test device Download PDFInfo
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Abstract
The utility model discloses a high pressure is annotated atmospheric oxidation fuel factor and is detected tracking test device, including filling pipe system, experimental model system, data acquisition and control system, gaseous phase output system, liquid phase output system, gaseous phase analytic system, liquid phase analytic system, PC control system and constant temperature oven, filling pipe system one end and control system connect, and the other end links to each other with the entrance point of model system, and the exit end of model system is connected in the remaining gas sample's of the parallelly connected collection that sets up gaseous phase output system and the liquid phase output system of collecting oxidized oil appearance, and gaseous phase analytic system is connected to the output of gaseous phase output system, and liquid phase analytic system is connected to the oil appearance that liquid phase output system output end was collected, the temperature probe at experimental model system both ends and the heat band of inside wall are still connected respectively in data acquisition and control system. This experimental model system equallys divide cloth temperature probe and can pass through the change of the inside fuel factor of data acquisition and control system real -time detection oxidation tube, has guaranteed result analysis's accuracy.
Description
Technical field
The utility model relates to the experimental installation of field of oil development, particularly relates to a kind of high pressure air injection heat of oxidation effect detection tracking test device.
Background technology
Eighties of last century rises the eighties, and combustion in-situ (insitucombustion) thermal recovery technology starts to be subject to paying close attention to widely and carried out rig-site utilization in part oil field. Combustion in-situ technology injects air first in the earth formation, then small portion in-place oil generation combustion reactions is made by the mode of igniting, oxygen in air is consumed, the stack gas generated can displacement part crude oil, simultaneously because a large amount of heat release of combustion reactions causes the rise in temperature in stratum thus reduces thick oil viscosity in stratum, increase its mobility. The development of combustion in-situ technology makes academia start to pay attention to bitum oxidizing reaction gradually. The special reaction pattern that low-temperature oxidation reaction occurs as crude oil and oxygen behind high-pressure air injection stratum, the effect of its reaction is directly connected to the successful probability of igniting. Bituminous matter occurs reaction to generate bituminous matter, the further oxidized formation coke of bituminous matter at continuous polymerization reaction take place, viscid bitumen and oxygen. The important factor that therefore coke formed usually is considered as combustion in situ can realize owing to containing lower burning-point.
When high pressure air injection is after the successful Application of light oil reservoirs, air injection technology of not lighting a fire starts to become, in the feasibility of viscous crude/super-heavy oil deposit, the focus that academia discusses. In the temperature range of low-temperature oxidation (50��350 DEG C), bitum speed of reaction is also different, therefore according to speed of reaction, bitum low-temperature oxidation being divided into double teacher: 1) 50��150 DEG C, bituminous matter and oxygen occur reaction to generate aldehyde, water, carbonic acid gas, carbon monoxide and coke; 2) 150��200 DEG C, aldehyde and oxygen occur reaction to generate alcohol, ketone and water further; 3) 200��250 DEG C, aldehyde, ketone and oxygen occur reaction to generate hydroperoxide, carboxylic acid and water; 4) 250��350 DEG C, alcohol, aldehyde and oxygen occur reaction to generate hydroperoxide, ketone and water.
In research work domestic and international at present, the research for super-heavy oil deposit air injection technology mainly concentrates on crude oil oxidation post fuel deposition aspect. By first oil reservoir being injected atmospheric oxidation viscous crude, form the lower coke of burning-point thus increase the success ratio of combustion in-situ. But domestic at present also do not have experimental installation that a set of maturation is perfect and method super-viscous oil oxidation under reservoir conditions can be carried out good Simulation and analysis, and traditional light crude low-temperature oxidation device does not consider the singularity of high viscosity oil in crude oil injection process and analysis process. Therefore in order to explore the reaction mechanism of research super-viscous oil and oxygen, reaction pattern under clear and definite different condition, the utility model people relies on theoretical basis for many years and manufactures and designs experience, the quantitative analysis of a kind of super-heavy oil deposit crude oil oxygenated fuel deposition and the experimental technique of sign and device are proposed, to make up the deficiency of the indoor research means of current super-heavy oil deposit air injection.
At present, both at home and abroad in the research of high pressure air injection heat of oxidation effect detection tracking test method and device, carry out a large amount of work, it has been " one light crude cyclic gas injection low-temperature oxidation experimental technique and the device " of CN102384970B if Authorization Notice No. is " clean oil reservoir air oil production low-temperature oxidation experimental technique and the device " of CN102230940B and Authorization Notice No.. Described method provide the device that can be used for crude oil air injection oxidation experiment, meet the demand of crude oil oxidation experiment to a certain extent, but, for carrying out the air injection existing experimental technique of heat of oxidation effect study and device still comes with some shortcomings: 1) cannot accurately real time measure flow of air and air capacity, owing to the heat of oxidation effect power of quantitative crude oil is by the impact of oxidation course and air capacity, cannot accurately study crude oil heat of oxidation effect change rule; 2) dynamic oxidation reaction process cannot realize system pressure is constant or the kinds of experiments condition such as flow of air is constant, the crude oil heat of oxidation effect study under multiple condition can not be realized; 3) can not accurately the temperature in detecting and tracking oxidation reaction process, pressure change, the thermal distortion of temperature probe detection cannot reflect that the heat effect of crude oil oxidation from core band to oxide edge changes; 4) testing whole process automation degree not high, what cannot realize data follows the trail of collection certainly, it is believed that error is bigger; 5) can not accurately measure gas phase residual volume after oxidizing reaction, follow-up gas phase, the timely process of liquid phase and analysis can not be realized. Therefore, design the experimental installation of a kind of defect that can overcome and reduce prior art, very necessary for the problem solving present high pressure air injection heat of oxidation effect detection tracking test.
Practical novel content
The purpose of this utility model is to provide a kind of high pressure air injection heat of oxidation effect detection tracking test device, simultaneously can collection analysis gas phase and property of liquid phase change, to ensure the accuracy of result; And automatization and the reliability degree of experiment research can be improved.
Another object of the present utility model is to provide a kind of high pressure air injection heat of oxidation effect detection tracking test device, the change following the trail of heat effect in crude oil oxidation reaction process can be detected in real time, and the heat effect situation in the different oxide regions of crude oil can be detected out simultaneously, to ensure the accuracy of heat effect detected result, can accurately measure flow of air and air capacity simultaneously, the various modes such as constant current or constant voltage can be set, it is achieved the research of crude oil heat effect situation when kinds of experiments.
A kind of high pressure air injection heat of oxidation effect detection tracking test device, it is characterized in that, comprise injected system, experimental model system, data collection and control system, gas phase output system, liquid phase output system, gas phase analysis system, liquid phase analysis system, PC Controlling System and constant temperature oven;
Described experimental model system one end is connected with injected system, the other end is connected to the gas phase output system of the separation gas liquid phase being arranged in parallel for collecting the liquid phase output system of residual gas and thickened oil sample, and experimental model system is used for Real-Time Monitoring and follows the trail of the heat effect situation in crude oil air injection oxidising process; The output terminal of described gas phase output system is communicated in gas phase analysis system; The oily sample of described liquid phase output systematic collection is communicated in liquid phase analysis system; Described model system two ends and middle part also respectively opening be connected to data collection and control system, for the heat effect changing conditions monitored and in tracing model system;
Described experimental model system comprises a hot detecting and tracking instrument, and hot detecting and tracking instrument is round shape, comprises temperature probe, oxidation tube, heating zone, thermal insulation layer and thermofin from inside to outside successively; There are two temperature probes described hot detecting and tracking instrument inside, is placed in oxidation tube inside, is made up of metallic substance high temperature resistant, that thermal conductivity is good; Described thermal insulation layer inwall is heating zone, and outer wall is wrapped up by thermofin; Be enclosed with heatproof between described heating zone and oxidation tube tube wall, the metallic substance that withstand voltage, corrosion-resistant, thermal conductivity is good forms; Described hot detecting and tracking instrument cylinder outer wall and two ends are made by heat resisting and pressure resisting metallic substance, can heatproof 700 DEG C, withstand voltage 70MPa.
Preferably, described injected system is made up of multi-functional control pump, tensimeter, six-way valve one, gas sample cylinder, oil sample cylinder, gas meter, valve one, valve two, valve three, valve four and valve five; Described multi-functional control pump is by the six-way valve one gas sample cylinder that is arranged in parallel of control and oil sample cylinder, and is detected by tensimeter and gather pressure changing; Described gas meter one end is connected with gas sample cylinder exit end, and the other end is connected with oil sample cylinder end by six-way valve two, and six-way valve two-way excess pressure sensor is connected with multi-functional control pump;
Preferably, two outlets up and down of described gas-liquid separator are connected with the import of liquid phase output system with described gas phase output system respectively; Described gas phase output system exit end is connected with the entrance end of gas phase analysis system by valve eight; Described liquid phase output system is connected by the entrance end of valve with liquid phase analysis system.
Preferably, described gas phase output system comprises gas-liquid separator, tolerance instrument and valve seven; Described liquid phase output system comprises gas-liquid separator, graduated cylinder and valve ten;
Described gas phase analysis system comprises gas sample and collects intermediate receptacle, mass spectrometer, gas chromatographicanalyzer and valve nine, and gas sample collection container is connected with tolerance instrument by valve; Described liquid phase analysis system comprises oil sample and collects intermediate receptacle, gas chromatograph, density instrument, rheometer, Four composition analyser, thermogravimetric analyzer, infrared spectroscopy instrument and valve 12, and oil sample is collected intermediate receptacle and is connected with graduated cylinder by valve 11.
Preferably, described data collection and control system is made up of pressure transmitter and temperature monitoring and control PC end; Described data collection and control system is linked in sequence by data line.
Preferably, described multi-functional control pump controls the pressure condition of injected system and model system by pressure sensor monitoring; Temperature probe is connected with control PC end with data gathering by integrated temperature sensor, monitors the temperature variations of hot detecting and tracking instrument inside, and is recorded the variable power of heating zone by integrated temperature sensor control by Controlling System.
Preferably, described experimental model system and gas-liquid separator, gas sample cylinder, oil sample cylinder are all placed in constant temperature oven.
The experimental technique of a kind of high pressure air injection heat of oxidation effect detection tracking test device comprises the steps:
1) air and crude oil are injected in experimental model system by injected system, by PC Controlling System, the temperature of experimental model system and pressure are adjusted to experiment condition;
2) by arranging gas meter, gas phase in experimental model system/oil phase ratio is adjusted to experimental value;
3) by the temperature in the real-time detection model system of data detection system, pressure changing in experimentation, and Controlling System adjusts the temperature variation of heating zone in real time according to the temperature conditions that temperature probe detects;
4) by gas phase output systematic collection residual gas sample and be delivered to gas phase analysis system according to gravity segregation situation, by liquid phase output systematic collection thickened oil sample and transport to liquid phase analysis system;
5) according to the analytical results of described experimental model system temperature variation and two analytical systems, the data of crude oil high pressure air injection oxidation oxygen consumption rate, oil property change, gaseous component change, crude oil heat of oxidation effect and the situation such as activation energy change and crude distillation extracting are drawn.
Preferably, heat of oxidation effect experiment in experimental model system of described crude oil and high-pressure air can take steady temperature reaction pattern or constant pressure reaction pattern.
The utility model has the advantage of,
1. can accurately measure flow of air and air capacity by gas meter and high precision tolerance instrument, ensure experiment condition accuracy, and can study difference air velocity and air capacity under crude oil heat of oxidation effect and heat effect Changing Pattern;
2. the utility model can in real time accurately the temperature in detecting and tracking oxidation reaction process, pressure change, and oxidizing reaction core band to the heat effect of oxide edge can be characterized change, it is achieved the heat of oxidation effect study of the various modes such as systems constant pressure, steady temperature or constant air flow velocity;
3. whole experiment flow level of automation, possesses from following the trail of the ability gathering and realizing data;
4. model heating zone is directly wrapped in the good oxidation tube outer wall of thermal conductivity, and outer wall wraps up thick thermal insulation layer and thermofin, has greatly stopped scattering and disappearing and improve the accuracy of heat effect detection of heat in crude oil oxidising process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of hot detecting and tracking instrument of the present utility model;
Fig. 3 is the structural framing figure of experimental technique of the present utility model.
Shown in figure: 1 is multifunctional constant pressure-controlled pump, 2 is tensimeter, 3 is six-way valve one, 4 is valve two, 5 is valve one, 6 is gas sample cylinder, 7 is oil sample cylinder, 8 is valve four, 9 is valve three, 10 is gas meter, 11 is valve five, 12 is six-way valve two, 13 is pressure transmitter, 14 is oxidation tube, 15 is temperature probe, 16 is heating zone, 17 is thermal insulation layer, 18 is thermofin, 19 is hot detecting and tracking instrument, 20 is data gathering and control PC end, 21 is valve six, 22 is gas-liquid separator, 23 is valve seven, 24 is tolerance instrument, 25 is valve eight, 26 is gas sample collection intermediate receptacle, 27 is valve nine, 28 is mass spectrometer, 29 is gas chromatograph one, 30 is valve ten, 31 is graduated cylinder, 32 is valve 11, 33 is that intermediate receptacle collected by oil sample, 34 is valve 12, 35 is gas chromatograph two, 36 is density instrument, 37 is rheometer, 38 is Four composition analyser, 39 is thermogravimetric analyzer, 40 is infrared spectroscopy instrument, 41 is constant temperature oven.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only the utility model part embodiment, instead of whole embodiments. Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in FIG. 1 to 3, the utility model proposes a kind of high pressure air injection heat of oxidation effect detection tracking test device, described experimental installation comprises injected system, experimental model system, data collection and control system, gas phase output system, liquid phase output system, gas phase analysis system, liquid phase analysis system, PC Controlling System and constant temperature oven; Experimental model system entrance end is connected in the injected system being arranged in parallel gas sample cylinder 6 and oil sample cylinder 7 by six-way valve 2 12, experimental model system exit end be connected to by gas-liquid separator 22 be arranged in parallel for collecting the gas phase output system of residual gas and the liquid phase output system for collecting thickened oil sample after oxidation, described gas phase output system connects gas phase analysis system, described liquid phase output system connecting fluid facies analysis system; Described experimental model system two ends also connect data gathering and Controlling System.
The method being undertaken testing by above-mentioned high pressure air injection heat of oxidation effect detection tracking test device is, as shown in Figure 1 and Figure 2, by injected system by high temperature crude oil and air Injection in experimental model system, under the temperature of experimental model system and pressure being adjusted to experiment condition by Controlling System; Temperature and the pressure detection timed interval in experimental model system are set, and continuously by temperature, pressure transmitter the temperature in reaction process, pressure change are transferred to data collecting system, and make corresponding adjustment by Controlling System; Suitable sample time is selected according to temperature in data collecting system, Pressure Variation, and then it is delivered in gas phase analysis system by residual gas after the oxidation of gas phase output systematic collection, it is delivered in liquid phase analysis system by liquid phase output systematic collection thickened oil sample; According to showing after described two analytical system sampling analysis that crude oil property change, crude oil activating can change, be oxidized consumption oxygen and oil phase vaporization extracting situation.
When entering sample, experimentally condition setting multi-functional control pump 1 injects the oil gentle sample of sample with constant current or constant voltage mode in model system, while gas meter 10 can air flow quantity in accurate recording injection model system and flow velocity; During sampling analysis, the oil gas in experimental model system relies on oil gas gravitational differentiation, enters gas phase output system and liquid phase output system from two exit end up and down of gas-liquid separator 22 respectively.
Due in crude oil air injection oxidising process, oxidizing reaction in various degree can be there is in the oily sample of different physical property, crude oil property is with upgrading degree is different on the spot, in order to ensure that being oxidized rear oil gas is fully separated the flowable with thickened oil sample mutually, under gas-liquid separator 22 is placed in experimental model system temperature condition, greatly ensure that the accuracy of experiment. Owing to oxygenizement slowly also can occur oil sample under atmospheric condition, affecting the accuracy of experimental analysis, thus liquid phase analysis system is directly connected with liquid phase output system, pilot process does not contact ambient atmos, ensure that the promptness of crude oil sample analysis and accuracy.
In the present embodiment, heat of oxidation effect in model system of described crude oil and high-pressure air can take steady temperature reaction pattern or constant pressure reaction pattern.
Further, as shown in Figure 2, in the present embodiment, described model system mainly comprises heat effect and follows the tracks of instrument 19 device, and this round tube type heat effect is followed the tracks of instrument 19 and is followed successively by thermofin 18, thermal insulation layer 17, heating zone 16, oxidation tube 14 and temperature probe 15 from outside to inside; Temperature probe 15 runs through whole oxidation tube 14, and spreads all over integrated temperature monitoring point in parallel, it is possible to accurately detecting the temperature variations of the crude oil being in oxidation tube 14 different positions in oxidation reaction process, this temperature probe 15 accuracy of detection is �� 0.1 DEG C; Described oxidation tube 14 is made up of the metallic substance of high temperature high voltage resistant and erosion resistance, and this oxidation tube 14 volume is 300cm3(having got rid of the volume shared by temperature probe), operating pressure is 0��8000psi, and the working temperature upper limit is 300 DEG C; Described heating zone 16 is made up of the copper material that life-span length is high temperature resistant, and is wrapped in oxidation tube 14 outer wall, and this heating zone 16 heating accuracy is �� 0.1 DEG C, and maximum heating speed is 10 DEG C/min; The exotic materials that described thermal insulation layer 17 is less than 0.1 by thermal conductivity is made, it is possible to block outside dissipation or the diffusion of the heat that inner heating zone 16 produces; The novel nano level porous material that described thermofin 18 adopts thermal conductivity to be less than 0.02 is wrapped in the surface of thermal insulation layer 17 and the two ends of oxidation tube 14, and its thickness accounts for whole heat effect tracking instrument 19 radius more than half, scattering and disappearing with trap heat as far as possible, it is to increase the accuracy of experiment.
Further, in the present embodiment, described injected system comprises the gas sample cylinder 6, oil sample cylinder 7, gas meter 10, multi-functional control pump 1 and each valve that are arranged in parallel by six-way valve 1; Described multi-functional control pump 1 is by microcomputerized control, automatic constant-pressure can be realized or constant current mode enters sample, and can the pressure of automatic control and adjustment model system in experimentation, the pressure of model system is made to maintain particular value all the time, this multi-functional control pump work pressure range is 0��10000psi, and minimum precision is 0.1psi, and the workflow weight range of this multi-functional control pump 1 is 0��25mL/min, minimum precision is 0.01mL, and this multi-functional control pump 1 can realize automatically entering pump moves back pump; Described gas sample cylinder 6 and oil sample cylinder 7 are made up of the metallic substance of erosion resistance, and the operating pressure of container is 0��10000psi, and the volume of container is 1000mL, and under container work pressure, most high-temperature resistant is 250 DEG C; Described gas meter 10 can the accurately flow velocity of test fluid or flow, the minimum precision of gas meter 10 under flow rate model is 0.1cm3/ min, the minimum precision under flow rate mode is 0.05cm3; Tensimeter 2 operating pressure that described multi-functional control pump 1 connects is 0��10000psi, and minimum precision is 0.1psi.
Further, in the present embodiment, described gas phase output system and liquid phase output system are connected in the upper and lower ends of gas-liquid separator 22 in parallel, described gas phase output system mainly comprises tolerance instrument 24, tolerance appearance is amassed as 1000mL, and minimum measurement accuracy is 0.02mL, and described liquid phase output system mainly comprises graduated cylinder 31, graduated cylinder volume is 50mL, and minimum precision is 0.1mL; Described gas phase analysis system and liquid phase analysis system are connected to the outlet of described gas phase output system and liquid phase output system in turn, described air trapping intermediate receptacle 26 and oil sample are collected intermediate receptacle 33 and are made up of corrosion resistant metallic materials, operating pressure is 0��10000psi, and volume is 500mL; Described mass spectrometer 28 is adopted as the ABSciex4000 type mass spectrograph that Sciex company produces; The 7890B type gas chromatograph that described gas chromatograph 1 and gas chromatograph 2 35 are produced for Agilent company; Described density instrument 36 operating temperature range is-10��200 DEG C, and temperature-controlled precision is 0.02 DEG C, and operating pressure scope is 0��140MPa, and density measurement scope is 0.00001��3g/cm3, density measurement accuracy is 0.00001g/cm3; Described rheometer 37 operating temperature range is 20��200 DEG C, and minimum precision is 0.1 DEG C, and operating pressure scope is 0��10000psi, and minimum precision is 0.1psi, and viscosity measurement precision is 0.01mPa s; Stable hydrocarbon that described Four composition analyser 38 can accurately be separated in crude oil, aromatic hydrocarbon, resin and asphalt; Described thermogravimetric analyzer 39 can detect the parameters such as heat effect in oxidising process, transformation temperature, weightless temperature interval and weight loss rate, working temperature is room temperature to 1550 DEG C, temperature rise rate is 0.1��50 DEG C/min, and weighing capacity is 0.1g, can provide the gases such as air/argon gas; Described infrared spectroscopy instrument 40 can the changing conditions of compound and molecular structure in qualitative qualification crude oil oxidising process, wave number scope is 7000��400cm-1, wave number precision is �� 0.5cm-1, have resolving power to be 0.5cm most-1, signal to noise ratio is 10000:1.
In a better embodiment of the present utility model, described data collection and control system comprises by the temperature inspection and control device of data gathering with control PC end 20, the temperature, pressure integrated sensor that described heat effect follows the tracks of instrument 19 inside connects temperature inspection and control device by data line, and the pressure transmitter 13 that described six-way valve 2 12 is connected is connected with multi-functional control pump 1 by data line.
In a better embodiment of the present utility model, the heating zone 16 that described High Temperature High Pressure heat follows the tracks of 19 inside is connected with temperature inspection and control device through thermofin 18 by data line; Heating zone 16 outside surface is integrated with temperature sensor, it is possible to the temperature variation real-time Transmission of heating zone 16 to temperature inspection and control device 20, and this heating zone 16 can regulate heating change of frequency according to arranging of Controlling System.
Lift a specific embodiment one below, to describe the experimentation of this experimental technique.
The present embodiment adopt steady temperature reaction pattern to study crude oil and the high-pressure air heat of oxidation effect situation in model system. Heating zone 16 temperature that constant temperature oven 41 and heat effect are followed the tracks of in instrument 19 is all adjusted to experimental temperature 120 DEG C, more than constant temperature 2h, starts after temperature inspection and control device 20 detection record displays temperature is stable to implement note sample process.
Gas sample cylinder 6 and oil sample cylinder 7 in abundant heated oven at 120 DEG C, when entering sample, first open six-way valve 1, valve 55, valve 99 and six-way valve 2 12, by the air in multi-functional control pump 1 emptying oil sample cylinder 7, set multi-functional control pump 1 subsequently and enter high temperature oil sample 50mL with constant rate of speed (such as 5mL/min) to pump in heat effect tracking instrument 19, valve-off 1, valve 39, open valve 24, valve 48, valve 5 11, when air is full of whole pipeline flow process, reset gas meter 10 reading and multi-functional control pump 1 is set and enters air with constant voltage mode (such as 2000psi) to pump in heat effect tracking instrument 19, when the model system pressure that pressure transmitter 13 detects reaches 4000psi, stop injecting air, when the air capacity that now gas meter 10 records is 270mL, and close six-way valve 2 12 successively, valve 5 11, valve 48, valve 24 and six-way valve 1, whole note sample end of processing.
In experimentation, data gathering uninterruptedly controls heating zone 16 with control PC end 20 makes heating zone 16 temperature remain 120 DEG C; The temperature probe 15 running through oxidation tube 14 inside can detect the temperature variation at different positions place in crude oil oxidising process in real time, and interrupted transmission is to temperature inspection and control device 20; Pressure transmitter 13 can detect heat effect in real time and follow the tracks of the change of the pressure in instrument 19, and pressure data transferred to the PC end of multi-functional control pump 1.
React and open valve 21 after 48 hours and carry out sampling analysis, undertaken being oxidized rear gas phase sampling analysis by gas phase output system; When utilizing gas phase output systematic collection sample, first the piston in tolerance instrument 24 being pushed into volume top carries out emptying, then valve 7 23 is opened, record the tolerance followed the tracks of instrument 19 from heat effect and discharge, subsequently valve-off 7 23, open valve 8 25, gas sample is collected in gas sample and collects in intermediate receptacle 26, subsequently valve-off 8 25, open valve 9 27 and carry out mass spectroscopy 28 and gas chromatographic analysis 29 successively.
Open valve 10 subsequently, the oily sample flowed out by gas-liquid separator 22 enters into graduated cylinder 31, opening valve 11 collection oil sample after record oil sample volume collects in intermediate receptacle 33 in oil sample, open valve 12 subsequently, carry out gas chromatographic analysis, density analysis, rheological analysis, Four composition analysis, thermogravimetric analysis and Infrared spectroscopy successively.
By analytical calculation gas sample, it is seen that the carbonic acid gas of remnant oxygen content, generation in gas phase and carbon monoxide content and a nitrogen content, it is possible to obtain after oil sample oxidation 48h oxygen consumption rate in whole reactor; Oil sample can obtain carbon component, density and viscosity B coefficent situation after oil sample oxidation 48h by gas chromatographic analysis, density analysis and rheological analysis, can obtain Four composition (stable hydrocarbon, aromatic hydrocarbon, resin and asphalt) after oil sample oxidation 48h, activation energy and micro chemical changing conditions by Four composition analysis, thermogravimetric analysis and Infrared spectroscopy; In the oxidation tube 14 recorded by temperature inspection and control device 20, the changing conditions of temperature and rate of temperature change final analysis can go out to be oxidized oil sample heat effect situation after 48h.
In order to the heat effect changing conditions in analyse crude oil oxidising process more comprehensively, it is possible to repeatedly sampling analysis, and can experimentally require or need to set sample time every time, as:
React 72 hours sampling analysis, draw oxygen consumption rate, oil sample character (component, structure, heat effect and activation energy) result;
React 96 hours sampling analysis, draw oxygen consumption rate, oil sample character (component, structure, heat effect and activation energy) result;
React 120 hours sampling analysis, draw oxygen consumption rate, oil sample character (component, structure, heat effect and activation energy) result;
React 144 hours sampling analysis, draw oxygen consumption rate, oil sample character (component, structure, heat effect and activation energy) result;
React 192 hours sampling analysis, draw oxygen consumption rate, oil sample character (component, structure, heat effect and activation energy) result;
React 240 hours sampling analysis, draw oxygen consumption rate, oil sample character (component, structure, heat effect and activation energy) result;
React 288 hours sampling analysis, draw oxygen consumption rate, oil sample character (component, structure, heat effect and activation energy) result.
Finally can show that oxygen consumption rate in 12 days, oil sample character (component, structure, heat effect and activation energy) are with oxidization time result of variations.
The utility model has technique effect useful as follows:
(1) carry out gas sample and the sepn process of oil sample when experimental temperature, make oil gas two-phase be separated from each other to greatest extent, ensure that the accuracy of experimental result;
(2) fluid flow rate or the flow velocity of injection can accurately be measured;
(3) possessing temperature, pressure data multichannel collecting system, temperature, pressure change in time and can automatically record preservation by specific mode;
(4) can real-time implementation automatic sampling, the operation such as pressurize and heat, and Controlling System is provided with corresponding upper and lower spacing protection mechanism, ensures experiment safety smooth running;
(5) level pressure, Ding Wen can be selected and determine the heat effect change of the kinds of experiments modes such as air velocity to study in crude oil oxidising process;
(6) the integrated temperature induction point of distribution on built-in in model temperature probe, the temperature variation at different positions place can be detected, and then the temperature variation data obtained can reflect the heat effect situation at different positions place in crude oil oxidising process, ensure that the accuracy of experimental result and representativeness;
(7) pattern layout is blocked the heat in oxidising process to greatest extent and is scattered and disappeared and thermosteresis, reduces in experimentation because equipment error is on the impact of result;
(8) analytical system contains comparatively comprehensively gas phase analysis and oil phase analysis, it is possible to meet the oil gas facies analysis demand in crude oil air injection oxidising process;
(9) whole experimental installation can simulate the highest reservoir pressure 9000psi, and model can simulate the highest reservoir temperature 250 DEG C, it is possible to the heat of oxidation effect situation of the most of oil reservoir crude oil of applied research in large-temperature range.
The above is only preferred implementation of the present utility model, it should be noted that the utility model is not limited to aforesaid way, and under the prerequisite not departing from the utility model principle, moreover it is possible to improve further, these improvement also should be considered as protection domain of the present utility model.
Claims (7)
1. a high pressure air injection heat of oxidation effect detection tracking test device, it is characterized in that, comprise injected system, experimental model system, data collection and control system, gas phase output system, liquid phase output system, gas phase analysis system, liquid phase analysis system, PC Controlling System and constant temperature oven (41);
Described experimental model system one end is connected with injected system, the other end is connected to the gas phase output system of the separation gas liquid phase being arranged in parallel for collecting the liquid phase output system of residual gas and thickened oil sample, and experimental model system is used for Real-Time Monitoring and follows the trail of the heat effect situation in crude oil air injection oxidising process; The output terminal of described gas phase output system is communicated in gas phase analysis system; The oily sample of described liquid phase output systematic collection is communicated in liquid phase analysis system; Opening is also distinguished at described model system two ends and middle part, is connected to data collection and control system, for the heat effect changing conditions monitored and in tracing model system;
Described experimental model system comprises a hot detecting and tracking instrument (19), hot detecting and tracking instrument (19) is round shape, comprises temperature probe (15), oxidation tube (14), heating zone (16), thermal insulation layer (17) and thermofin (18) from inside to outside successively; There are two temperature probes (15) described hot detecting and tracking instrument (19) inside, is placed in oxidation tube (14) inner, is made up of metallic substance high temperature resistant, that thermal conductivity is good; Described thermal insulation layer (17) inwall is heating zone (16), and outer wall is wrapped up by thermofin (18); Be enclosed with heatproof between described heating zone (16) and oxidation tube (14) tube wall, the metallic substance that withstand voltage, corrosion-resistant, thermal conductivity is good forms; Described hot detecting and tracking instrument cylinder outer wall and two ends are made by heat resisting and pressure resisting metallic substance, can heatproof 700 DEG C, withstand voltage 70MPa.
2. a kind of high pressure air injection heat of oxidation effect detection tracking test device according to claim 1, it is characterized in that, described injected system is made up of multi-functional control pump (1), tensimeter (2), the gentle sample cylinder (6) of six-way valve one (3), oil sample cylinder (7), gas meter (10), valve one (5), valve two (4), valve three (9), valve four (8) and valve five (11); Described multi-functional control pump (1) is by six-way valve one (3) gas sample cylinder (6) that is arranged in parallel of control and oil sample cylinder (7), and passes through tensimeter (2) and detect and gather pressure changing; Described gas meter (10) one end is connected with gas sample cylinder (6) exit end, the other end is connected with oil sample cylinder (7) end by six-way valve two (12), and six-way valve two (12) is connected with multi-functional control pump (1) by pressure transmitter (13).
3. a kind of high pressure air injection heat of oxidation effect detection tracking test device according to claim 1, it is characterized in that, two outlets up and down of described gas-liquid separator (22) are connected with the import of liquid phase output system with described gas phase output system respectively; Described gas phase output system exit end is connected with the entrance end of gas phase analysis system by valve eight (25); Described liquid phase output system is connected by the entrance end of valve with liquid phase analysis system.
4. a kind of high pressure air injection heat of oxidation effect detection tracking test device according to claim 1, it is characterized in that, described gas phase output system comprises gas-liquid separator (22), tolerance instrument (24) and valve seven (23); Described liquid phase output system comprises gas-liquid separator (22), graduated cylinder (31) and valve ten (30);
Described gas phase analysis system comprises gas sample and collects intermediate receptacle (26), mass spectrometer (28), gas chromatographicanalyzer (29) and valve nine (27), and gas sample collection container is connected with tolerance instrument by valve; Described liquid phase analysis system comprises oil sample and collects intermediate receptacle (33), gas chromatograph (35), density instrument (36), rheometer (37), Four composition analyser (38), thermogravimetric analyzer (39), infrared spectroscopy instrument (40) and valve ten two (34), and oil sample is collected intermediate receptacle (33) and is connected with graduated cylinder (31) by valve ten one (32).
5. a kind of high pressure air injection heat of oxidation effect detection tracking test device according to claim 1, it is characterised in that, described data collection and control system is by pressure transmitter (13) and temperature monitoring and controls PC end (20) and forms; Described data collection and control system is linked in sequence by data line.
6. a kind of high pressure air injection heat of oxidation effect detection tracking test device according to claim 2, it is characterized in that, described multi-functional control pump (1) is by the pressure condition of pressure transmitter (13) Monitoring and Controlling injected system and model system; Temperature probe (15) is connected with control PC end (20) with data gathering by integrated temperature sensor, monitor the temperature variations that hot detecting and tracking instrument (19) is inner, and recorded the variable power of heating zone (16) by Controlling System by integrated temperature sensor control.
7. a kind of high pressure air injection heat of oxidation effect detection tracking test device according to claim 1, it is characterized in that, described experimental model system and gas-liquid separator (22), gas sample cylinder (6), oil sample cylinder (7) are all placed in constant temperature oven (41).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527408A (en) * | 2016-01-07 | 2016-04-27 | 西南石油大学 | High pressure injected air oxidation heat effect detecting and tracking experimental device and method |
| CN108071379A (en) * | 2018-02-07 | 2018-05-25 | 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527408A (en) * | 2016-01-07 | 2016-04-27 | 西南石油大学 | High pressure injected air oxidation heat effect detecting and tracking experimental device and method |
| CN105527408B (en) * | 2016-01-07 | 2017-10-03 | 西南石油大学 | A kind of high pressure air injection heat of oxidation effect detection tracking test device and method |
| CN108071379A (en) * | 2018-02-07 | 2018-05-25 | 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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