CN103244093B - Method for generating combustion resonance steam from emulsified crude oil for heating oil wells - Google Patents
Method for generating combustion resonance steam from emulsified crude oil for heating oil wells Download PDFInfo
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- CN103244093B CN103244093B CN201310141549.8A CN201310141549A CN103244093B CN 103244093 B CN103244093 B CN 103244093B CN 201310141549 A CN201310141549 A CN 201310141549A CN 103244093 B CN103244093 B CN 103244093B
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Abstract
The invention provides a method for generating combustion resonance steam from emulsified crude oil for heating oil wells. The method includes emulsifying crude oil; generating the resonance steam; heating a crude oil emulsifying tank; and sealing the oil wells. By the method, the crude oil and water are emulsified at first, are mixed by an oil-air mixer to obtain mixtures, and the mixtures are ignited and are sprayed out of a steam jet provided with a resonator, so that a resonance steam flow is formed, and the oil wells can be heated. The method has the advantages of convenience in implementation, easiness in equipment manufacture, portability, flexibility in control, high heat conversion efficiency, good oil layer heating effect and capability of stopping pollution. The method is suitable for implementing steam heating for the oil wells.
Description
Technical field
What the present invention proposed is a kind of method of oil exploitation heating oil well, a kind of specifically emulsified crude oil combustion resonance steam generation method of heating oil well.
Background technology
At present, the exploitation of Heavy Oil Reservoir oil, need to heat oil reservoir, the thermal source of heating adopts steam usually.Oilfield exploitation mainly adopts the mode of steam soak, steam flooding and combustion in situ to heat oil reservoir.Wherein, steam soak first injects a certain amount of steam to oil well, vexed well a period of time, and until the heat energy of steam after oil reservoir diffusion, then the recover petroleum that drives a well, its shortcoming is: production cycle is long, and oil reservoir heating-up temperature slowly, and can only oil reservoir near abandoned wells; Steam flooding, the steam continuously injecting high mass dryness fraction in well in oil reservoir, steam constantly heats oil reservoir, thus reduce the viscosity of Crude Oil, the steam injected becomes the fluid of heat in the earth formation, is driven to around producing well by crude oil, and is adopted on ground, shortcoming is: steam flooding can only be rely on the secondary carried out after cyclic steam stimulation to heat oil reservoir, then carries out the method for exploiting; Combustion in situ is by adopting electricity to make reservoir temperature reach crude oil burning-point with the method for chemistry, and inject to oil reservoir the oil production method that air or oxygen makes Crude Oil sustained combustion, its shortcoming is: implementing process difficulty is large, wayward underground combustion, the large quantity of air of high pressure injection simultaneously makes cost raise.
Producing well is divided into vertical shaft and horizontal well, is connected between usual horizontal well with two vertical shafts.
In oil well, inject steam is by burn crude, heating steam boiler, produces steam.Due to direct burn crude, and produce steam by boiler heat exchange, so crude oil is not easy Thorough combustion, and when heat energy and boiler heat exchange, some heat energy is discharged into the atmosphere along with flue gas, causes the waste of the energy.
Summary of the invention
The shortcoming of steam is produced in order to overcome existing direct burn crude heating boiler, the invention provides a kind of emulsified crude oil combustion resonance steam generation method of heating oil well, the method passes through emulsification of crude oil, after mixing with pressure-air in oil-gas mixer, sprayed by the steam jet that resonator is housed, heating oil well.Solve the technical problem that heating oil well generates by resonance steam.
The scheme that technical solution problem of the present invention adopts is:
1, emulsification of crude oil: first crude oil is injected in emulsification of crude oil tank, then the water being added with emulsifier is also joined in emulsification of crude oil tank in proportion, start stirring motor, drive agitator Stirring, make crude oil and water emulsification, become emulsified crude oil, emulsified crude oil sprays in oil-gas mixer through carrier pipe and high-pressure oil pump by oil emulsion nozzle, mixes with the air inputted from air intlet, compression pump and air nozzle;
2, resonance steam generates: the emulsification gasified oil through oil-gas mixer mixing sprays from steam jet under pressure, and initial igniter lights emulsification gasified oil simultaneously, makes it to burn and produces steam; Steam produces the resonance wave consistent with oil reservoir resonance frequency by resonator;
3, emulsification of crude oil tank heating: crude oil and water emulsification need heat, heater is provided with in emulsification of crude oil tank, heater one end is connected by the heat interchanger of pipeline with steam jet arranged outside, heat interchanger absorbs the heat conduction of steam jet to the heater in emulsification of crude oil tank, ensures the temperature condition of emulsification of crude oil;
4, oil well is closed: be provided with closing cap on oil well top, oil-gas mixer part is as closing cap top, and steam jet, igniter, resonator and heat interchanger are as the bottom of closing cap.
Good effect, method of the present invention, first by crude oil and water emulsification, after being mixed, lights ejection from the steam jet that resonator is housed by oil-gas mixer, forms resonance steam stream, heating oil well.Have and be convenient to implement, device fabrication is easy, and move conveniently, control flexibly, thermal energy conversion efficiency is high, good and stop the feature of pollution to oil reservoir heating effect.Suitable to the steam-heated method application of oil well.
Accompanying drawing explanation
Fig. 1 is device therefor pie graph of the present invention
In figure, 1. emulsification of crude oil tank, 1.1. heater, 2. stirring motor, 2.1. agitator, 3. carrier pipe, 3.1. oil emulsion nozzle, 4. high-pressure oil pump, 5. air intlet, 5.1. air nozzle, 6. compression pump, 7. oil-gas mixer, 8. resonator, 9. steam jet, 10. igniter, 11. heat interchangers, 12. closing caps.
Detailed description of the invention
According to the figure:
1, emulsification of crude oil: first crude oil is injected in emulsification of crude oil tank 1, then the water being added with emulsifier is also joined in emulsification of crude oil tank in proportion, start stirring motor 2, drive agitator 2.1 Stirring, make crude oil and water emulsification, become emulsified crude oil, emulsified crude oil sprays in oil-gas mixer 7 through carrier pipe 3 and high-pressure oil pump 4 by oil emulsion nozzle 3.1, mixes with the air inputted from air intlet 5, compression pump 6 and air nozzle 5.1;
2, resonance steam generates: the emulsification gasified oil through oil-gas mixer mixing sprays from steam jet 9 under pressure, and initial igniter 10 lights emulsification gasified oil simultaneously, makes it to burn and produces steam; Steam produces the resonance wave consistent with oil reservoir resonance frequency by resonator 8;
3, emulsification of crude oil tank heating: crude oil and water emulsification need heat, heater 1.1 is provided with in emulsification of crude oil tank, heater one end is connected with the heat interchanger 11 of steam jet arranged outside by pipeline, heat interchanger absorbs the heat conduction of steam jet to the heater in emulsification of crude oil tank, ensures the temperature condition of emulsification of crude oil.
4, oil well is closed: be provided with closing cap 12 on oil well top, oil-gas mixer part is as closing cap top, and steam jet, igniter, resonator and heat interchanger are as the bottom of closing cap.
Know-why of the present invention:
1, the emulsification of crude oil: containing light oil and mink cell focus in crude oil, also containing pitch and paraffin, and other impurity, directly during burning, because the component of crude oil grease is different, light fraction gasifies along with burning, when oxygen supply condition is not enough, the imperfect combustion component of a part directly enters air with flue gas, causes the pollution of air.And the usual carbon content of heavy constituent is high, hydrogen is not enough, thus need with can Thorough combustion when a large amount of oxygen supplies, and in fact, the usual incomplete combustion of heavy constituent, causes carbon distribution, and heat energy can not give full play of, also the waste of crude oil is caused, so, direct burn crude heating boiler, its fuel availability is low, heat exchanger effectiveness is low, causes the waste of crude oil.
In order to enable crude oil Thorough combustion, by the water containing hydrogen atom and emulsification of crude oil, the Hydrogen Energy in crude oil is made enough to meet the requirement of burning completely.Emulsification of crude oil needs water and participates in, in water, add emulsifier, is formed containing the water of emulsifier, by the water containing emulsifier and crude oil design temperature and stirring condition emulsified, formation emulsified crude oil, its combustibility is greatly improved, and burning crude oil can be made abundant.Under normal circumstances, if select emulsifier proper, then oil-water ratio can reach 3:7, that is: in emulsified crude oil, water accounts for 70%.During emulsified crude oil burning, water participates in burning, and improve combustibility, the combustion flame produced is vapours, because water is defined steam by heating.In the present invention, need just to produce steam, the heat energy of the mixed steam of this combustion flame and steam can be utilized completely, not discharge and pollution, and the steam-heated vapour source be particularly suitable for as oil well uses.
2, the generation of resonance steam: the generation of sound wave needs vibration source, and vibration source needs energy, when steam is by the gas channel with certain architectural feature, acoustic vibration can be produced, and sound wave frequency there is direct relation by the planform of resonator and runner length.Because oil well oil reservoir has intrinsic resonance frequency, so when steam produces the vibration wave consistent with oil reservoir resonance frequency, oil reservoir can produce resonance, when oil reservoir resonates, part oil is separated with the basement rock of oil reservoir or sandy soil, and is subject to the effect of steam heat conduction and convection current, oil reservoir is heated, after oil reservoir heating, viscous crude can be thinning, is conducive to separating from oil reservoir, extracted out by oil pumper.Like this, fast by resonance steam heating oil reservoir, heat transfer faster than steam direct heating oil reservoir speed, heat energy utilization is abundant.
Advantage of the present invention:
1, because the fuel of heating oil well is emulsified crude oil, wherein containing a large amount of water, can sufficient combustion, and combustion flame vapor stream during burning, can be produced, do not need separately to add water, so the heat energy of crude oil can heating produces steam completely, there is no the waste of heat energy.
2, owing to being provided with resonator at puff prot place, resonator take vapor stream as vibration source, so, the steam produced has certain frequency, and the structure of adjustment resonator and shape, just can produce the resonance wave identical with oil reservoir resonance frequency, play the effect that oil reservoir and steam resonate, therefore, it is possible to enliven oil reservoir fast, crude oil is separated with basement rock or sandy soil, is conducive to improving oil production.
3, according to oil well situation, resonator, steam jet and igniter to vertical shaft downward-extension, or can be placed in horizontal well.
Claims (1)
1. the emulsified crude oil combustion resonance steam generation method of a heating oil well, is characterized in that:
1), emulsification of crude oil: first crude oil is injected in emulsification of crude oil tank (1), then the water being added with emulsifier is also joined in emulsification of crude oil tank in proportion, start stirring motor (2), drive agitator (2.1) Stirring, make crude oil and water emulsification, become emulsified crude oil, emulsified crude oil sprays in oil-gas mixer (7) through carrier pipe (3) and high-pressure oil pump (4) by oil emulsion nozzle (3.1), mixes with the air inputted from air intlet (5), compression pump (6) and air nozzle (5.1);
2), resonance steam generates: the emulsification gasified oil through oil-gas mixer mixing sprays from steam jet (9) under pressure, and initial igniter (10) lights emulsification gasified oil simultaneously, makes it to burn and produces steam; Steam produces the resonance wave consistent with oil reservoir resonance frequency by resonator (8);
3), emulsification of crude oil tank heating: crude oil and water emulsification need heat, heater (1.1) is provided with in emulsification of crude oil tank, heater one end is connected with the heat interchanger (11) of steam jet arranged outside by pipeline, heat interchanger absorbs the heat conduction of steam jet to the heater in emulsification of crude oil tank, ensures the temperature condition of emulsification of crude oil;
4), oil well is closed: be provided with closing cap (12) on oil well top, oil-gas mixer part is placed in closing cap top, and steam jet, igniter, resonator and heat interchanger are placed in the bottom of closing cap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310141549.8A CN103244093B (en) | 2013-04-23 | 2013-04-23 | Method for generating combustion resonance steam from emulsified crude oil for heating oil wells |
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| CN201310141549.8A CN103244093B (en) | 2013-04-23 | 2013-04-23 | Method for generating combustion resonance steam from emulsified crude oil for heating oil wells |
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| CN103244093B true CN103244093B (en) | 2015-04-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4966235A (en) * | 1988-07-14 | 1990-10-30 | Canadian Occidental Petroleum Ltd. | In situ application of high temperature resistant surfactants to produce water continuous emulsions for improved crude recovery |
| CN2186297Y (en) * | 1994-01-18 | 1994-12-28 | 胜利石油管理局现河采油厂 | Steam power acoustic wave generator for oil extraction |
| CN1504545A (en) * | 2002-12-04 | 2004-06-16 | 蔡坤穆 | Emulsion synthetic fuel oil and manufacturing method thereof |
| CN1694946A (en) * | 2002-10-16 | 2005-11-09 | 朴吉远 | Apparatus for producing water-in-oil emulsified fuel and supplying the same |
| CN202844895U (en) * | 2012-02-16 | 2013-04-03 | 亚碁科技有限公司 | Energy-saving and environment-friendly fuel oil preparing device |
-
2013
- 2013-04-23 CN CN201310141549.8A patent/CN103244093B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4966235A (en) * | 1988-07-14 | 1990-10-30 | Canadian Occidental Petroleum Ltd. | In situ application of high temperature resistant surfactants to produce water continuous emulsions for improved crude recovery |
| CN2186297Y (en) * | 1994-01-18 | 1994-12-28 | 胜利石油管理局现河采油厂 | Steam power acoustic wave generator for oil extraction |
| CN1694946A (en) * | 2002-10-16 | 2005-11-09 | 朴吉远 | Apparatus for producing water-in-oil emulsified fuel and supplying the same |
| CN1504545A (en) * | 2002-12-04 | 2004-06-16 | 蔡坤穆 | Emulsion synthetic fuel oil and manufacturing method thereof |
| CN202844895U (en) * | 2012-02-16 | 2013-04-03 | 亚碁科技有限公司 | Energy-saving and environment-friendly fuel oil preparing device |
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| CN103244093A (en) | 2013-08-14 |
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