CN202195975U - Experimental apparatus for cyclic gas-injection low-temperature oxidation of light crude oil - Google Patents
Experimental apparatus for cyclic gas-injection low-temperature oxidation of light crude oil Download PDFInfo
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- CN202195975U CN202195975U CN2011203030956U CN201120303095U CN202195975U CN 202195975 U CN202195975 U CN 202195975U CN 2011203030956 U CN2011203030956 U CN 2011203030956U CN 201120303095 U CN201120303095 U CN 201120303095U CN 202195975 U CN202195975 U CN 202195975U
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Abstract
The utility model discloses an experimental apparatus for cyclic gas-injection low-temperature oxidation of light crude oil, comprising a modeling system, a cyclic system, an analysis system and a PC (personal computer) monitoring system, wherein the modeling system is used for simulating reservoir pressure and reservoir temperature and conveying produced gas into the analysis system by the cyclic system; the analysis system is used for analyzing components of the produced gas and conveying the analyzed and produced gas into the cyclic system; the cyclic system is used for conveying the produced gas back to the modeling system so as to realize cyclic monitoring; and the PC monitoring system is used for monitoring the reservoir pressure and the reservoir temperature and recording the gas components cyclically monitored by the analysis system. In the experimental apparatus disclosed by the embodiment of the utility model, the cyclic gas injection mode is adopted and the problem that the gas sampling analysis in a reaction system in the experiment process breaks the experimental balance is avoided.
Description
Technical field
The utility model relates to the oil development field; Relate in particular to a kind of light crude cyclic gas injection low-temperature oxidation experimental provision; Be a kind of being used for concretely at the dynamic displacement process of light crude air injection oil recovery crude oil, the experimental provision of breaking the experiment equilibrium problem thereby the realization cyclic gas injection is avoided getting the analysis of gas appearance in the experimentation.
Background technology
Since the sixties in 20th century, many in the world countries all carried out the research of lightweight oil reservoir injection air oil recovery technique, and many deep layer lightweight oil reservoirs have been carried out the air injection field test, have all obtained success technical and economically; It is to utilize gas input well to inject oil reservoir to air that said air injection recovers the oil, to replenish and to keep sand pressure, a kind of measure that utilizes oxidation product flue gas flooding effect, oxidative heat generation effect to recover the oil.Said low-temperature oxidation is meant in reservoir condition sub-surface crude oil and the oxidation reaction of injecting airborne oxygen generation.
Though the exploitation of lightweight oil reservoir air-injected low-temperature oxidation is started late in China; But because the air source is wide; With low cost, received extensive concern in recent years, several oil fields have also been carried out small-scale air and have been driven (transfer drive) site test; And obtained good effect, but the not enough system of air-injected low-temperature oxidation Study on Correlative Mechanisms and perfect on the whole.
The shortcoming of lightweight oil reservoir air injection exploitation is to have unsafe factor, and when promptly injecting airborne oxygen and crude oil and low-temperature oxidation not taking place fully react, hydrocarbon gas and oxygen mix are blasted easily in the output gas; Low-permeability oil deposit air injection another one characteristics be exactly after the low-temperature oxidation oil property can change; Such as viscosity variation, change of component etc.; The variation of these oil properties might damage the pore texture of low-permeability oil deposit; This just is strict with the Related Experimental Study of carrying out low-temperature oxidation early stage, and reasonably optimizing is annotated and adopted parameter on this basis.
At present; Though carrying out a large amount of work aspect the research of lightweight oil reservoir air injection exploitation low-temperature oxidation experimental simulation method and apparatus both at home and abroad; But; Still exist following not enough for carrying out the existing experimental technique of crude oil low-temperature oxidation research with device: 1) do not consider the gravitational differentiation that the hydrocarbon density difference causes, crude oil generation low-temperature oxidation remains at oil gas interface and the oxygen that is dissolved in the crude oil and participates in reaction, and the reliable experiment result degree is relatively poor; 2) dynamically the displacement process device is inconsiderate causes the gas channelling easily, causes the reaction of sample low-temperature oxidation uneven, and the reliable experiment result degree is relatively poor; 3) do not possess pressure, temperature and volume data multichannel collecting system; 4) the experiment flow automaticity is not high; 5) do not possess output gas on-line real time monitoring function; 6) mostly data acquisition is manual read's number, and this can cause a lot of personal errors.
In view of this, the inventor relies on relevant design and manufacturing experience for many years, proposes a kind of light crude cyclic gas injection low-temperature oxidation experimental provision, to overcome the defective of prior art.
The utility model content
The utility model embodiment provides a kind of light crude cyclic gas injection low-temperature oxidation experimental provision, is used to remedy above-mentioned defective of the prior art.
The utility model embodiment provides a kind of light crude cyclic gas injection low-temperature oxidation experimental provision, comprises model system, the circulation system, analytic system and PC supervisory system; Wherein, said model system is connected with the said circulation system, and said analytic system is connected with the said circulation system, and said PC supervisory system is connected with said analytic system with said model system respectively; Said model system is used for simulating oil deposit pressure and simulating oil deposit temperature, and output gas is sent into said analytic system through the said circulation system; Said analytic system is used to analyze the gas composition of said output gas, and the output pneumatic transmission that will pass through after the analysis is gone into the said circulation system; The said circulation system is used for said output pneumatic transmission is back to said simulation system, to realize circulatory monitoring; Said PC supervisory system is used to monitor the simulating oil deposit pressure and the simulating oil deposit temperature of said simulation system, and writes down the gas composition of said analytic system circulatory monitoring.
Preferably, the simulation system of the utility model embodiment comprises reaction vessel, heating watt, double-layer vacuum heat-proof device, baking oven and reactor outlet valve; It is outside that said heating watt is positioned at said reaction vessel; It is outside with said reaction vessel that said double-layer vacuum heat-proof device is configured in said heating watt; Said reactor outlet valve is positioned at said double-layer vacuum heat-proof device bottom, and said reaction vessel, heating watt, double-layer vacuum heat-proof device and reactor outlet valve are positioned at said baking oven; External vacuum pump is that said simulation system vacuumizes through said reactor outlet valve, and is warmed up to predetermined simulating oil deposit temperature through said heating watt and said baking oven; Said reactor outlet valve also is used for saturated a certain amount of crude oil and air to said reaction vessel, boosts to the simulating oil deposit pressure of reservation, generates described output gas.
Preferably, the circulation system of the utility model embodiment comprises first ball-and-seat, second ball-and-seat, the 3rd ball-and-seat, the 4th ball-and-seat, the 5th ball-and-seat, the 6th ball-and-seat, the 7th ball-and-seat, first piston formula intermediate receptacle, the second piston type intermediate receptacle, the 3rd piston type intermediate receptacle, the first twin-tub ISCO high-precision measuring pump, the second twin-tub ISCO high-precision measuring pump, the 3rd twin-tub ISCO high-precision measuring pump, air intermediate receptacle and coil pipe; Said air intermediate receptacle is connected with said model system through said first ball-and-seat; Said air intermediate receptacle is connected with said the 3rd piston type intermediate receptacle through said second ball-and-seat; Said first piston formula intermediate receptacle is connected with said analytic system with said the 4th ball-and-seat through said the 3rd ball-and-seat respectively with the said second piston type intermediate receptacle; Said first piston formula intermediate receptacle is connected with said the 3rd piston type intermediate receptacle with said the 6th ball-and-seat through said the 5th ball-and-seat respectively with the said second piston type intermediate receptacle; The said first twin-tub ISCO high-precision measuring pump, the second twin-tub ISCO high-precision measuring pump, the 3rd twin-tub ISCO high-precision measuring pump are connected with said first piston formula intermediate receptacle, the second piston type intermediate receptacle, the 3rd piston type intermediate receptacle respectively; Said the 3rd piston type intermediate receptacle is connected in said model system through said the 7th ball-and-seat and said coil pipe; Said first ball-and-seat is used to control said output gas and backflows and get into said air intermediate receptacle; The generator that said second ball-and-seat is used for controlling said air intermediate receptacle is sent to said the 3rd piston type intermediate receptacle; Said the 3rd ball-and-seat and the control of said the 4th ball-and-seat are sent to said first piston formula intermediate receptacle and the said second piston type intermediate receptacle with the output gas of said analytic system; Said the 5th ball-and-seat and the control of said the 6th ball-and-seat are sent to the output gas in said first piston formula intermediate receptacle and the said second piston type intermediate receptacle in said the 3rd piston type intermediate receptacle; The said first twin-tub ISCO high-precision measuring pump, the second twin-tub ISCO high-precision measuring pump, the 3rd twin-tub ISCO high-precision measuring pump are used for promoting the piston motion of said first piston formula intermediate receptacle, the second piston type intermediate receptacle, the 3rd piston type intermediate receptacle; The output gas that said the 7th ball-and-seat is used for controlling said the 3rd piston type intermediate receptacle returns to said simulation system through said coil pipe.
Preferably; The analytic system of the utility model embodiment comprises reduction valve and gas composition on-line monitoring appearance; Said reduction valve is connected in said gas composition on-line monitoring appearance, is used for the output gas that said simulation system the generates laggard promoting the circulation of qi body component analysis of reducing pressure.
Preferably, the PC monitoring system of the utility model embodiment comprises temperature sensor, model temperature sensor, model pressure transducer and gas composition on-line monitoring appearance sensor in PC, the model; Temperature sensor, model temperature sensor, model pressure transducer are connected with said PC through cable with gas composition on-line monitoring appearance sensor in the said model; Temperature sensor, model temperature sensor, model pressure transducer are arranged in said simulation system in the said model; Said gas composition on-line monitoring appearance sensor is arranged in said analytic system.
The beneficial effect of the light crude cyclic gas injection low-temperature oxidation experimental provision of the utility model embodiment is: adopt the cyclic gas injection mode; The problem of having avoided in experimentation, getting the analysis of gas appearance in the reactive system and having broken the experiment balance; And all response analysises are accomplished in a closed system, and experimental result is more true and reliable; Because cyclic gas injection is intermittent gas injection, is not easy to cause the gas channelling, cause uneven, the relatively poor problem of reliable experiment result degree of sample low-temperature oxidation reaction; Use the double-layer vacuum heat-proof device, and total system is placed in the baking oven, guaranteed reaction vessels and extraneous less temperature difference, guaranteed that the low-temperature oxidation heat production can accumulate and monitor out; Based on the temperature and pressure monitoring system of PC, improve experimental study robotization and reliability standard; Possess output system sample on-line monitoring function, improved real time implementation, automaticity.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, to those skilled in the art; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of light crude cyclic gas injection low-temperature oxidation experimental provision of the utility model embodiment;
Fig. 2 is the detailed structure synoptic diagram of a kind of light crude cyclic gas injection low-temperature oxidation experimental provision of the utility model embodiment.
Drawing reference numeral: 1; Reaction vessel 2; Heating watts 3; Double-layer vacuum heat-proof device 4; Model temperature sensor 5; Temperature sensor 6 in the model; First ball-and-seat 7; Air intermediate receptacle 8; The 3rd ball-and-seat 9; The 4th ball-and-seat 10; The 5th ball-and-seat 11; The 6th ball-and-seat 12; Second ball-and-seat 13; The 7th ball-and-seat 14; Coil pipe 15; Gas composition on-line monitoring appearance 16; Reduction valve 17; First piston formula intermediate receptacle 18; The second piston type intermediate receptacle 19; The 3rd piston type intermediate receptacle 20; First piston formula intermediate receptacle piston 21; The second piston type intermediate receptacle piston 22; The 3rd piston type intermediate receptacle piston 23; The first twin-tub ISCO high-precision measuring pump 24; The second twin-tub ISCO high-precision measuring pump 25; The 3rd twin-tub ISCO high-precision measuring pump 26; Reactor outlet valve 27; PC 28; Baking oven 29; The model pressure transducer
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, 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 is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1; The structural representation of a kind of light crude cyclic gas injection low-temperature oxidation experimental provision that provides for the utility model embodiment, this light crude cyclic gas injection low-temperature oxidation experimental provision can comprise: model system 110, the circulation system 120, analytic system 130 and PC supervisory system 140; Wherein, said model system 110 is connected with the said circulation system 120, and said analytic system 130 is connected with the said circulation system 120, and said PC supervisory system 140 is connected with said analytic system 130 with said model system 110 respectively.
Said model system 110 is used for simulating oil deposit pressure and simulating oil deposit temperature, and output gas is sent into said analytic system 130 through the said circulation system 120; Said analytic system 130 is used to analyze the gas composition of said output gas, and the output pneumatic transmission that will pass through after the analysis is gone into the said circulation system 120; The said circulation system 120 is used for said output pneumatic transmission is back to said simulation system 110, to realize circulatory monitoring; Said PC supervisory system 140 is used to monitor the simulating oil deposit pressure and the simulating oil deposit temperature of said simulation system 110, and writes down the gas composition of said analytic system 130 circulatory monitorings.
Because the experimental provision of the utility model embodiment has been tried out cyclic gas injection, avoided in experimentation, getting in the reactive system that gas appearance is analyzed and the problem of breaking the experiment balance.And cyclic gas injection is intermittent gas injection, is not easy to cause the gas channelling, thereby causes uneven, the relatively poor problem of reliable experiment result degree of sample low-temperature oxidation reaction.
Further describe in the face of above-mentioned light crude cyclic gas injection low-temperature oxidation experimental provision down:
Be illustrated in figure 2 as the detailed structure synoptic diagram of a kind of light crude cyclic gas injection low-temperature oxidation experimental provision that the utility model embodiment provides.
In the present embodiment, said simulation system 110 comprises reaction vessel 1, heating watts 2, double-layer vacuum heat-proof device 3, baking oven 28 and reactor outlet valve 26.
Said heating watts 2 is positioned at reaction vessel 1 outside; Double-layer vacuum heat-proof device 3 is configured in said heating watts 2 and said reaction vessel 1 outside; Said reactor outlet valve 26 is positioned at said double-layer vacuum heat-proof device 3 bottoms, and said reaction vessel 1, heating watts 2, double-layer vacuum heat-proof device 3 and reactor outlet valve 26 are positioned at said baking oven 28.
When implementing the light crude cyclic gas injection low-temperature oxidation experimental provision of the utility model; Adorn a certain amount of reservoir sand in the model system reaction vessel 1; Use external vacuum pump to vacuumize for whole simulation system, and be warmed up to predetermined simulating oil deposit temperature through said heating watts 2 and said baking oven 28 through said reactor outlet valve 26; Said reactor outlet valve 26 also is used for saturated a certain amount of crude oil and air to said reaction vessel 1, boosts to the simulating oil deposit pressure of reservation, generates described output gas.In the present embodiment, the highest simulating oil deposit pressure that said simulation system generates is 50MPa, and it is 200 ℃ that maximum oil is hidden temperature.
In the present embodiment, the circulation system comprises seven ball-and-seats, three piston type intermediate receptacles, three twin-tub ISCO high-precision measuring pumps, an air intermediate receptacle and a coil pipe.Outlet links to each other end entrance with model system through ball-and-seat on the air intermediate receptacle; The outlet of air intermediate receptacle lower end links to each other with one of them piston type intermediate receptacle through ball-and-seat; Two other piston type intermediate receptacle inlet links to each other with the air intermediate receptacle with analytic system series connection back through ball-and-seat respectively, and the outlet of these two piston type intermediate receptacles links to each other through the inlet of ball-and-seat and another one piston type intermediate receptacle respectively; The other end of three piston type intermediate receptacle pistons is connected with a twin-tub ISCO high-precision measuring pump respectively, and another outlet of the piston type intermediate receptacle that links to each other with the air intermediate receptacle is passed through to link to each other with the model system inlet behind ball-and-seat, the coil pipe.
As shown in Figure 2, the circulation system 120 comprises first ball-and-seat 6, second ball-and-seat 12, the 3rd ball-and-seat 8, the 4th ball-and-seat 9, the 5th ball-and-seat 10, the 6th ball-and-seat 11, the 7th ball-and-seat 13, first piston formula intermediate receptacle 17, the second piston type intermediate receptacle 18, the 3rd piston type intermediate receptacle 19, the first twin-tub ISCO high-precision measuring pump 23, the second twin-tub ISCO high-precision measuring pump 24, the 3rd twin-tub ISCO high-precision measuring pump 25, air intermediate receptacle 7 and coil pipe 14.Wherein, have piston 20, piston 21 and piston 22 respectively in first piston formula intermediate receptacle 17, the second piston type intermediate receptacle 18, the 3rd piston type intermediate receptacle 19.
Air intermediate receptacle 7 upper ends are connected with said model system 110 outlets through said first ball-and-seat 6; The outlet of air intermediate receptacle 7 lower ends connects parallel connection two paths is set; One of them piston type intermediate receptacle 19 links to each other with air intermediate receptacle 7 through second ball-and-seat 12; Two other piston type intermediate receptacle 17,18 inlets link to each other with air intermediate receptacle 7 with analytic system 130 series connection backs through the 3rd ball-and-seat 8, the 4th ball-and-seat 9 respectively, and the inlet that ball-and-seat 10,11 and another one piston type intermediate receptacle 19 are passed through in the outlet of these two piston type intermediate receptacles 17,18 respectively links to each other; Said air intermediate receptacle 7 is connected with said the 3rd piston type intermediate receptacle 19 through said second ball-and-seat 12; Said first piston formula intermediate receptacle 17 is connected with said the 3rd piston type intermediate receptacle 19 with said the 6th ball-and-seat 11 through said the 5th ball-and-seat 10 respectively with the said second piston type intermediate receptacle 18; The said first twin-tub ISCO high-precision measuring pump 23, the second twin-tub ISCO high-precision measuring pump 24, the 3rd twin-tub ISCO high-precision measuring pump 25 are connected with said first piston formula intermediate receptacle 17, the second piston type intermediate receptacle 18, the 3rd piston type intermediate receptacle 19 respectively; Said the 3rd piston type intermediate receptacle 19 is connected in said model system 110 through said the 7th ball-and-seat 13 with said coil pipe 14.
The said output gas of first ball-and-seat, 6 controls backflows and gets into said air intermediate receptacle 7; 12 controls of said second ball-and-seat are sent to the output gas of said air intermediate receptacle 7 in the 3rd piston type intermediate receptacle 19; Said the 3rd ball-and-seat 8 is sent to said first piston formula intermediate receptacle 17 and the said second piston type intermediate receptacle 18 with the output gas that said the 4th ball-and-seat 9 is controlled said analytic system; Said the 5th ball-and-seat 10 and 11 controls of said the 6th ball-and-seat are sent to 18 output gas in said first piston formula intermediate receptacle 17 and the said second piston type intermediate receptacle in said the 3rd piston type intermediate receptacle 19; The said first twin-tub ISCO high-precision measuring pump 23, the second twin-tub ISCO high-precision measuring pump 24, the 3rd twin-tub ISCO high-precision measuring pump 25 are used for promoting piston 20,21,22 motions of said first piston formula intermediate receptacle 17, the second piston type intermediate receptacle 18, the 3rd piston type intermediate receptacle 19; The output gas that said the 7th ball-and-seat 13 is used for controlling said the 3rd piston type intermediate receptacle 19 returns to said simulation system 110 through said coil pipe 14.
In the present embodiment; Analytic system 130 comprises reduction valve 16 and gas composition on-line monitoring appearance 15; Said reduction valve 16 is connected in said gas composition on-line monitoring appearance 15, is used for the output gas that said simulation system 110 the generates laggard promoting the circulation of qi body component analysis of reducing pressure.
In the present embodiment, PC monitoring system 140 comprises temperature sensor 5, model temperature sensor 4, model pressure transducer 29 and gas composition on-line monitoring appearance sensor (not shown) in PC 27, the model.
Temperature sensor 5, model temperature sensor 4, model pressure transducer 29 are connected with said PC 27 through cable with gas composition on-line monitoring appearance sensor in the model; Temperature sensor 5, model temperature sensor 4, model pressure transducer 29 are arranged in said simulation system 110 in the model; Said gas composition on-line monitoring appearance sensor is arranged in said analytic system 130.
Based on the corresponding light crude cyclic gas injection low-temperature oxidation experimental provision of above-mentioned Fig. 2 the workflow of the utility model embodiment experimental provision is introduced as follows below:
Adorn a certain amount of reservoir sand 300ml compacting in the reaction vessel 1 of model system 110; Vacuumize through 26 pairs of total systems of reactor outlet valve with vacuum pump; In reaction vessel 1, a certain amount of space is stopped on reaction vessel 1 top through reactor outlet valve 26 saturated a certain amount of crude oil 90ml, prevents when inlet injects air because the displacement effect causes liquid to get into first ball-and-seat 6; Inject the 90ml air to predetermined pressure 12MPa through reactor outlet valve 26 then; Open PC control system 140 control heating watts 2 simultaneously and be warmed up to predetermined pressure 12MPa, after the total system balance, be stabilized in 70 ℃ of reservoir pressure 12MPa and reservoir temperatures with baking oven 28.Off-response device outlet valve 26 and model system 110 Nei Jiarewa 2; Configure reduction valve 16 pressure; Open three twin-tub ISCO high- precision measuring pumps 23,24,25 and gas composition on-line monitoring appearance 15; Piston 20,21,22 to-and-fro movements of leaning on three twin-tub ISCO high- precision measuring pumps 23,24,25 to promote in three piston type intermediate receptacles; After partly the process component is monitored output in the reaction vessel 1; All in the reaction vessel 1 of output air in piston type intermediate receptacle 19 injection model systems 110; Wherein lean on twin-tub ISCO high- precision measuring pump 23,24 to guarantee and two piston type intermediate receptacles 17,18 of analytic system 130 series connection in piston motion opposite, mainly be to guarantee to get into the lower intermediate receptacle (for example the piston type intermediate receptacle 17) of one of them pressure, when getting into this lower piston type intermediate receptacle of pressure 17 through the low-pressure air that gas composition on-line monitoring appearance 15 comes out later; Another one piston type intermediate receptacle 18 just in time piston reverse motions promptly boosts; The purpose of boosting is to guarantee that the reaction output gas in this piston type intermediate receptacle 18 are expressed in the piston type intermediate receptacle 19, and piston type intermediate receptacle 19 also is that the to-and-fro movement through piston is expressed under the effect of ball-and-seat in the reaction vessel 1, guarantees the whole process of cyclic gas injection.
The effect of coil pipe 14 is when guaranteeing that piston type intermediate receptacle 19 interior air get in the reaction vessel 1; There is time enough to heat in baking oven 28 the insides; Similar basically with the temperature in the reaction vessel 1; Because measure the reaction vessel variation of temperature, so the heat that the heat walked of the output band of gas and injecting gas are brought into is wanted balance.Be exactly in addition, because three piston type intermediate receptacles not in baking oven 28, are cold airs for what prevent to get into, so utilize coil pipe to let gas heat fully.
In the present embodiment; Through online gas composition monitor 15 analytical gas components; Pass through the automatic record of gas composition on-line monitoring appearance sensor by PC 27; Finish up to experiment so repeatedly, experiment finishes to get fluid sample from the reactor outlet valve 26 of model system and carries out analyzing and testing and obtain the oil component result.
The light crude cyclic gas injection low-temperature oxidation experimental provision of the utility model embodiment compared with prior art; Have the following advantages: adopt the cyclic gas injection mode; The problem of having avoided in experimentation, getting the analysis of gas appearance in the reactive system and having broken the experiment balance; And all response analysises are accomplished in a closed system, and experimental result is more true and reliable; Because cyclic gas injection is intermittent gas injection, is not easy to cause the gas channelling, cause uneven, the relatively poor problem of reliable experiment result degree of sample low-temperature oxidation reaction; Use the double-layer vacuum heat-proof device, and total system is placed in the baking oven, guaranteed reaction vessels and extraneous less temperature difference, guaranteed that the low-temperature oxidation heat production can accumulate and monitor out; Based on the temperature and pressure monitoring system of PC, improve experimental study robotization and reliability standard; Possess output system sample on-line monitoring function, improved real time implementation, automaticity.
Above-described specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; And be not used in the protection domain that limits the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. a light crude cyclic gas injection low-temperature oxidation experimental provision is characterized in that, said light crude cyclic gas injection low-temperature oxidation experimental provision comprises model system, the circulation system, analytic system and PC supervisory system;
Wherein, said model system is connected with the said circulation system, and said analytic system is connected with the said circulation system, and said PC supervisory system is connected with said analytic system with said model system respectively;
Said model system is used for simulating oil deposit pressure and simulating oil deposit temperature, and output gas is sent into said analytic system through the said circulation system; Said analytic system is used to analyze the gas composition of said output gas, and the output pneumatic transmission that will pass through after the analysis is gone into the said circulation system; The said circulation system is used for said output pneumatic transmission is back to said simulation system, to realize circulatory monitoring; Said PC supervisory system is used to monitor the simulating oil deposit pressure and the simulating oil deposit temperature of said simulation system, and writes down the gas composition of said analytic system circulatory monitoring.
2. light crude cyclic gas injection low-temperature oxidation experimental provision as claimed in claim 1 is characterized in that, said simulation system comprises reaction vessel, heating watt, double-layer vacuum heat-proof device, baking oven and reactor outlet valve;
It is outside that said heating watt is positioned at said reaction vessel; It is outside with said reaction vessel that said double-layer vacuum heat-proof device is configured in said heating watt; Said reactor outlet valve is positioned at said double-layer vacuum heat-proof device bottom, and said reaction vessel, heating watt, double-layer vacuum heat-proof device and reactor outlet valve are positioned at said baking oven;
External vacuum pump is that said simulation system vacuumizes through said reactor outlet valve, and is warmed up to predetermined simulating oil deposit temperature through said heating watt and said baking oven; Said reactor outlet valve also is used for saturated a certain amount of crude oil and air to said reaction vessel, boosts to the simulating oil deposit pressure of reservation, generates described output gas.
3. light crude cyclic gas injection low-temperature oxidation experimental provision as claimed in claim 1; It is characterized in that the said circulation system comprises first ball-and-seat, second ball-and-seat, the 3rd ball-and-seat, the 4th ball-and-seat, the 5th ball-and-seat, the 6th ball-and-seat, the 7th ball-and-seat, first piston formula intermediate receptacle, the second piston type intermediate receptacle, the 3rd piston type intermediate receptacle, the first twin-tub ISCO high-precision measuring pump, the second twin-tub ISCO high-precision measuring pump, the 3rd twin-tub ISCO high-precision measuring pump, air intermediate receptacle and coil pipe;
Said air intermediate receptacle is connected with said model system through said first ball-and-seat; Said air intermediate receptacle is connected with said the 3rd piston type intermediate receptacle through said second ball-and-seat; Said first piston formula intermediate receptacle is connected with said analytic system with said the 4th ball-and-seat through said the 3rd ball-and-seat respectively with the said second piston type intermediate receptacle; Said first piston formula intermediate receptacle is connected with said the 3rd piston type intermediate receptacle with said the 6th ball-and-seat through said the 5th ball-and-seat respectively with the said second piston type intermediate receptacle; The said first twin-tub ISCO high-precision measuring pump, the second twin-tub ISCO high-precision measuring pump, the 3rd twin-tub ISCO high-precision measuring pump are connected with said first piston formula intermediate receptacle, the second piston type intermediate receptacle, the 3rd piston type intermediate receptacle respectively; Said the 3rd piston type intermediate receptacle is connected in said model system through said the 7th ball-and-seat and said coil pipe;
Said first ball-and-seat is used to control said output gas and backflows and get into said air intermediate receptacle; The generator that said second ball-and-seat is used for controlling said air intermediate receptacle is sent to said the 3rd piston type intermediate receptacle; Said the 3rd ball-and-seat and the control of said the 4th ball-and-seat are sent to said first piston formula intermediate receptacle and the said second piston type intermediate receptacle with the output gas of said analytic system; Said the 5th ball-and-seat and the control of said the 6th ball-and-seat are sent to the output gas in said first piston formula intermediate receptacle and the said second piston type intermediate receptacle in said the 3rd piston type intermediate receptacle; The said first twin-tub ISCO high-precision measuring pump, the second twin-tub ISCO high-precision measuring pump, the 3rd twin-tub ISCO high-precision measuring pump are used for promoting the piston motion of said first piston formula intermediate receptacle, the second piston type intermediate receptacle, the 3rd piston type intermediate receptacle; The output gas that said the 7th ball-and-seat is used for controlling said the 3rd piston type intermediate receptacle returns to said simulation system through said coil pipe.
4. light crude cyclic gas injection low-temperature oxidation experimental provision as claimed in claim 1; It is characterized in that; Said analytic system comprises reduction valve and gas composition on-line monitoring appearance; Said reduction valve is connected in said gas composition on-line monitoring appearance, is used for the output gas that said simulation system the generates laggard promoting the circulation of qi body component analysis of reducing pressure.
5. light crude cyclic gas injection low-temperature oxidation experimental provision as claimed in claim 1; It is characterized in that said PC monitoring system comprises temperature sensor, model temperature sensor, model pressure transducer and gas composition on-line monitoring appearance sensor in PC, the model;
Temperature sensor, model temperature sensor, model pressure transducer are connected with said PC through cable with gas composition on-line monitoring appearance sensor in the said model; Temperature sensor, model temperature sensor, model pressure transducer are arranged in said simulation system in the said model; Said gas composition on-line monitoring appearance sensor is arranged in said analytic system.
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| CN2011203030956U CN202195975U (en) | 2011-08-19 | 2011-08-19 | Experimental apparatus for cyclic gas-injection low-temperature oxidation of light crude oil |
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| CN2011203030956U CN202195975U (en) | 2011-08-19 | 2011-08-19 | Experimental apparatus for cyclic gas-injection low-temperature oxidation of light crude oil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384970A (en) * | 2011-08-19 | 2012-03-21 | 中国石油天然气股份有限公司 | Light crude-oil circular gas-injection low-temperature oxidization experimental method and device |
| CN110514754A (en) * | 2019-08-06 | 2019-11-29 | 北京科技大学 | A kind of METHOD OF CYCLIC GAS INJECTION FOR CONDENSATE RESERVOIRS exploitation injection gas onlap measurement device and method |
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2011
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384970A (en) * | 2011-08-19 | 2012-03-21 | 中国石油天然气股份有限公司 | Light crude-oil circular gas-injection low-temperature oxidization experimental method and device |
| CN102384970B (en) * | 2011-08-19 | 2014-07-02 | 中国石油天然气股份有限公司 | Light crude-oil circular gas-injection low-temperature oxidization experimental method and device |
| CN110514754A (en) * | 2019-08-06 | 2019-11-29 | 北京科技大学 | A kind of METHOD OF CYCLIC GAS INJECTION FOR CONDENSATE RESERVOIRS exploitation injection gas onlap measurement device and method |
| US10947836B2 (en) | 2019-08-06 | 2021-03-16 | University Of Science And Technology Beijing | Device and method for measuring overburden of injected gas in cyclic gas injection development of condensate gas reservoir |
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