CN101343989B - High-dryness oil field steam-injection boiler and high-dryness steam production method - Google Patents
High-dryness oil field steam-injection boiler and high-dryness steam production method Download PDFInfo
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- CN101343989B CN101343989B CN2008103041347A CN200810304134A CN101343989B CN 101343989 B CN101343989 B CN 101343989B CN 2008103041347 A CN2008103041347 A CN 2008103041347A CN 200810304134 A CN200810304134 A CN 200810304134A CN 101343989 B CN101343989 B CN 101343989B
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Abstract
The invention provides a high dryness oil field steam injection boiler and a high dryness steam production method, belonging to the technical field of the oil field steam injection boiler. The high dryness oil field steam injection boiler comprises a radiation section, a convection section, a transition section, a boiler body, a water supplying pump and a steam-water separator; wherein, a steam superheater is fixedly installed in the boiler body between the convection section and the transition section; the water inlet of an inlet pipe of the convection section is communicated with the water outlet of the water supplying pump; and the water outlet of the inlet pipe of the convection section is communicated with the water inlet at the upper end of the convection section; the steam inlet of an outlet pipe of the convection section is communicated with the steam outlet at the lower end of the convection section, and the steam outlet of the outlet pipe of the convection section is communicated with a steam inlet of the radiation section. The invention has the advantages that the structure is reasonable and compact, the operation is convenient, the dryness of the steam can be ensured to reach 100 percent, and a certain superheating degree is provided, the invention can meet the requirements of the steam injection technology for developing ultra thick oil, so the working efficiency of the steam injection during the development of ultra thick oil is greatly improved, the thermal efficiency is improved, the energy consumption is reduced, and the manufacture cost is reduced.
Description
One, technical field
The present invention relates to the uphole steam generator technical field, is a kind of high mass dryness fraction uphole steam generator and high-quality steam production method.
Two, background technology
Domesticly begun to surpass on a large scale heavy oil development at present; In ultra thick oil filling vapour development technology; Require the outlet steam quality of injection boiler to reach 100%; And therefore the outlet steam quality of the uphole steam generator of present domestic use can't satisfy the steam injection technology requirement of ultra heavy oil development all about 80%.In order to satisfy the steam injection technology requirement of ultra heavy oil development, generally needing increases the heater of at least one cover to steam in addition, has so not only increased energy consumption but also has increased operation and management work, thereby increased cost.
Three, summary of the invention
The invention provides a kind of high mass dryness fraction uphole steam generator and high-quality steam production method; Overcome the deficiency of above-mentioned prior art, it can effectively solve steam quality can not reach the problem that ultra thick oil filling vapour is developed required steam quality standard, its reasonable and compact in structure; Improved the thermal efficiency; Reduce energy consumption, reduced cost of production, can satisfy the requirement of the steam injection technology of ultra heavy oil development.
One of technical scheme of the present invention realizes through following measure: a kind of high mass dryness fraction uphole steam generator, comprise radiant section, convection section and changeover portion, and the import of radiant section is connected with the outlet of burner, also comprises body of heater, feed pump and steam-water separator; Be installed with steam superheater in the body of heater between convection section and changeover portion; The water inlet of convection section inlet tube is connected with the delivery port of feed pump, and the delivery port of convection section inlet tube is connected with the water inlet of convection section upper end; The import of convection section outlet is connected with the outlet of convection section lower end; The outlet of convection section outlet is connected with the import of radiant section; The import of radiant section outlet is connected with the outlet of radiant section; The outlet of radiant section outlet is connected with the import of steam-water separator lower end, and the import of separate vapour outlet is connected with the outlet at steam-water separator top, and the venthole of separate vapour outlet is connected with the air intake of steam superheater; The air intake of superheater outlet is connected with the venthole of steam superheater, and the venthole of superheater outlet is connected with the air intake of steam outlet pipe.
Two of technical scheme of the present invention realizes through following measure: utilize the high-quality steam production method of above-mentioned high mass dryness fraction uphole steam generator to be undertaken by following step: demineralized water is after the feed pump supercharging; Enter into convection section through the convection section inlet tube; In convection section, tentatively heat; Secondly enter into radiant section by the convection section outlet, in radiant section, further be heated to the wet saturated steam of 75% to 80% mass dryness fraction, enter into steam-water separator by the radiant section outlet again; In steam-water separator, carry out carbonated drink separation; Isolated mass dryness fraction reaches 99% steam, and steam is entered into by the separate vapour outlet and is heated to overheatedly in the steam superheater, is entered in the mixing machine by the superheater outlet then; Get in the mixing machine by separating water outlet pipe by the isolated high concentration saliferous of steam-water separator saturation water; In mixing machine; The superheated steam that saturation water that steam-water separator is separated and steam superheater come out carries out blending; Utilize superheated steam with saturation water heating and vaporization fully, behind little superheated steam of formation mass dryness fraction 100%, export steam outlet pipe to by the mixed vapour outlet.
Be to the further optimization of foregoing invention technical scheme below or/and improve:
The following of above-mentioned steam-water separator can have mixing machine; The top of mixing machine is lower than the bottom of steam-water separator; The water inlet that separates water outlet pipe is connected with the delivery port of steam-water separator bottom, and the delivery port that separates water outlet pipe is connected with the water inlet of mixing machine, and the air intake of mixing machine is connected with the venthole of superheater outlet; The venthole of mixing machine is connected with the air intake of mixed vapour outlet, and the venthole of mixed vapour outlet is connected with the air intake of steam outlet pipe.
Convection section can be arranged at the top in the above-mentioned body of heater, and changeover portion is arranged at the bottom in body of heater, in the upper end of body of heater smoke box and chimney is installed; There is radiant section front portion at body of heater, at the afterbody of body of heater mount pad is arranged; The outlet of radiant section is connected with the import of body of heater bottom changeover portion; On mount pad, be installed with steam-water separator.
Convection section can be arranged at the top in the above-mentioned body of heater, and changeover portion is arranged at the bottom in body of heater, in the upper end of body of heater smoke box and chimney is installed; There is radiant section front portion at body of heater, at the afterbody of body of heater mount pad is arranged; The outlet of radiant section is connected with the import of body of heater bottom changeover portion; On mount pad, be installed with steam-water separator and mixing machine.
One end of the venthole of above-mentioned superheater outlet can be connected with steam (vapor) outlet, and the other end of the venthole of superheater outlet is connected with the air intake of steam discharging pipe.
One end of the venthole of above-mentioned mixed vapour outlet can be connected with steam (vapor) outlet, and the other end of the venthole of mixed vapour outlet is connected with the air intake of steam discharging pipe.
Above-mentioned steam-water separator can adopt vertical steam-water separator.
Reasonable and compact in structure of the present invention, easy to use, can make steam quality reach 100%; And certain degree of superheat arranged; Can satisfy the steam injection technology requirement of ultra heavy oil development, therefore greatly improve the operating efficiency that ultra heavy oil development is annotated vapour, improve the thermal efficiency; Reduce energy consumption, reduced cost of production.
Four, description of drawings
Accompanying drawing 1 is the main TV structure sketch map of most preferred embodiment of the present invention.
Accompanying drawing 2 is the technological process principle schematic of most preferred embodiment of the present invention.
Coding in the accompanying drawing is respectively: 1 is the steam discharging pipe, and 2 is feed pump, and 3 is radiant section, and 4 is steam-water separator, and 5 is changeover portion; 6 is steam superheater, and 7 is smoke box and chimney, and 8 is mount pad, and 9 is burner, and 10 is the convection section inlet tube; 11 is the convection section outlet, and 12 is the radiant section outlet, and 13 is the separate vapour outlet, and 14 is the superheater outlet, and 15 is steam outlet pipe; 16 is mixing machine, and 17 for separating water outlet pipe, and 18 is the mixed vapour outlet, and 19 is convection section.
Five, the specific embodiment
The present invention is not limited by following embodiment, can confirm concrete embodiment according to technical scheme of the present invention and actual conditions.
Below in conjunction with embodiment and accompanying drawing the present invention is further described:
Like accompanying drawing 1, shown in 2, this high mass dryness fraction uphole steam generator comprises radiant section 3, convection section 19 and changeover portion 5, and the import of radiant section 3 is connected with the outlet of burner 9, also comprises body of heater, feed pump 2 and steam-water separator 4; Be installed with steam superheater 6 in the body of heater between convection section 19 and changeover portion 5; The water inlet of convection section inlet tube 10 is connected with the delivery port of feed pump 2, and the delivery port of convection section inlet tube 10 is connected with the water inlet of convection section 19 upper ends; The import of convection section outlet 11 is connected with the outlet of convection section 19 lower ends; The outlet of convection section outlet 11 is connected with the import of radiant section 3; The import of radiant section outlet 12 is connected with the outlet of radiant section 3; The outlet of radiant section outlet 12 is connected with the import of steam-water separator 4 lower ends, and the import of separate vapour outlet 13 is connected with the outlet at steam-water separator 4 tops, and the venthole of separate vapour outlet 13 is connected with the air intake of steam superheater 6; The air intake of superheater outlet 14 is connected with the venthole of steam superheater 6, and the venthole of superheater outlet 14 is connected with the air intake of steam outlet pipe 15.
Can according to actual needs above-mentioned high mass dryness fraction uphole steam generator be done further to optimize or/and improve:
Like accompanying drawing 1, shown in 2; There is mixing machine 16 below of steam-water separator 4; The top of mixing machine 16 is lower than the bottom of steam-water separator 4; The water inlet that separates water outlet pipe 17 is connected with the delivery port of steam-water separator 4 bottoms, and the delivery port that separates water outlet pipe 17 is connected with the water inlet of mixing machine 16, and the air intake of mixing machine 16 is connected with the venthole of superheater outlet 14; The venthole of mixing machine 16 is connected with the air intake of mixed vapour outlet 18, and the venthole of mixed vapour outlet 18 is connected with the air intake of steam outlet pipe 15.
Like accompanying drawing 1, shown in 2, convection section 19 is arranged at the top in body of heater, and changeover portion 5 is arranged at the bottom in body of heater, and smoke box and chimney 7 are installed in the upper end of body of heater; In the front portion of body of heater radiant section 3 is arranged, mount pad 8 is arranged at the afterbody of body of heater; The outlet of radiant section 3 is connected with the import of body of heater bottom changeover portion 5; On mount pad 8, be installed with steam-water separator 4; Perhaps, on mount pad 8, be installed with steam-water separator 4 and mixing machine 16.
Like accompanying drawing 1, shown in 2, an end of the venthole of superheater outlet 14 is connected with the air intake of steam outlet pipe 15, and the other end of the venthole of superheater outlet 14 is connected with the air intake of steam discharging pipe 1.
Like accompanying drawing 1, shown in 2, an end of the venthole of mixed vapour outlet 18 is connected with the air intake of steam outlet pipe 15, and the other end of the venthole of mixed vapour outlet 18 is connected with the air intake of steam discharging pipe 1.
Like accompanying drawing 1, shown in 2, steam-water separator 4 adopts vertical steam-water separator, and vertical steam-water separator is existing known vertical steam-water separator, and it can make isolated steam quality reach more than 99%.
Above technical characterictic has constituted the most preferred embodiment of the high mass dryness fraction uphole steam generator of the present invention, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
High-quality steam production method of the present invention utilizes high mass dryness fraction uphole steam generator to be undertaken by following step: demineralized water is after feed pump 2 superchargings; Enter into convection section 19 through convection section inlet tube 10; In convection section 19, tentatively heat; Secondly enter into radiant section 3 by convection section outlet 11, in radiant section 3, further be heated to the wet saturated steam of 75% to 80% mass dryness fraction, enter into steam-water separator 4 by radiant section outlet 12 again; In steam-water separator 4, carry out carbonated drink separation; Isolated mass dryness fraction reaches 99% steam, and steam is entered into by separate vapour outlet 13 and is heated to overheatedly in the steam superheater 6, is entered in the mixing machine 16 by superheater outlet 14 then; Get in the mixing machine 16 by separating water outlet pipe 17 by steam-water separator 4 isolated high concentration saliferous saturation waters; In mixing machine 16; The superheated steam that saturation water that steam-water separator 4 is separated and steam superheater 6 come out carries out blending; Utilize superheated steam with saturation water heating and vaporization fully, behind little superheated steam of formation mass dryness fraction 100%, export steam outlet pipe 15 backs to by mixed vapour outlet 18 and inject oil well; Behind mixed vapour outlet 18, install steam discharging pipe 1 additional, be equipped with the usefulness of urgent emptying.
Claims (8)
1. one kind high mass dryness fraction uphole steam generator comprises radiant section, convection section and changeover portion, and the import of radiant section is connected with the outlet of burner, it is characterized in that comprising body of heater, feed pump and steam-water separator; Be installed with steam superheater in the body of heater between convection section and changeover portion; The water inlet of convection section inlet tube is connected with the delivery port of feed pump, and the delivery port of convection section inlet tube is connected with the water inlet of convection section upper end; The import of convection section outlet is connected with the outlet of convection section lower end; The outlet of convection section outlet is connected with the import of radiant section; The import of radiant section outlet is connected with the outlet of radiant section; The outlet of radiant section outlet is connected with the import of steam-water separator lower end, and the import of separate vapour outlet is connected with the outlet at steam-water separator top, and the venthole of separate vapour outlet is connected with the air intake of steam superheater; The air intake of superheater outlet is connected with the venthole of steam superheater, and the venthole of superheater outlet is connected with the air intake of steam outlet pipe; Wherein, There is mixing machine the below of steam-water separator, and the top of mixing machine is lower than the bottom of steam-water separator, and the water inlet that separates water outlet pipe is connected with the delivery port of steam-water separator bottom; The delivery port that separates water outlet pipe is connected with the water inlet of mixing machine; The air intake of mixing machine is connected with the venthole of superheater outlet, and the venthole of mixing machine is connected with the air intake of mixed vapour outlet, and the venthole of mixed vapour outlet is connected with the air intake of steam outlet pipe.
2. high mass dryness fraction uphole steam generator according to claim 1 is characterized in that convection section is arranged at the top in the body of heater, and changeover portion is arranged at the bottom in body of heater, in the upper end of body of heater smoke box and chimney is installed; There is radiant section front portion at body of heater, at the afterbody of body of heater mount pad is arranged; The outlet of radiant section is connected with the import of body of heater bottom changeover portion; On mount pad, be installed with steam-water separator and mixing machine.
3. high mass dryness fraction uphole steam generator according to claim 1 is characterized in that an end of the venthole of superheater outlet is connected with steam (vapor) outlet, and the other end of the venthole of superheater outlet is connected with the air intake of steam discharging pipe.
4. high mass dryness fraction uphole steam generator according to claim 1 and 2 is characterized in that an end of the venthole of mixed vapour outlet is connected with steam (vapor) outlet, and the other end of the venthole of mixed vapour outlet is connected with the air intake of steam discharging pipe.
5. high mass dryness fraction uphole steam generator according to claim 3 is characterized in that steam-water separator adopts vertical steam-water separator.
6. high mass dryness fraction uphole steam generator according to claim 4 is characterized in that steam-water separator adopts vertical steam-water separator.
7. the high-quality steam production method of a high mass dryness fraction uphole steam generator according to claim 1 and 2; It is characterized in that being undertaken by following step: demineralized water is after the feed pump supercharging; Enter into convection section through the convection section inlet tube, in convection section, tentatively heat, secondly enter into radiant section by the convection section outlet; In radiant section, further be heated to the wet saturated steam of 75% to 80% mass dryness fraction; Enter into steam-water separator by the radiant section outlet again, in steam-water separator, carry out carbonated drink separation, isolated mass dryness fraction reaches 99% steam; Steam is entered into by the separate vapour outlet and is heated to overheatedly in the steam superheater, is entered in the mixing machine by the superheater outlet then; Get in the mixing machine by separating water outlet pipe by the isolated high concentration saliferous of steam-water separator saturation water; In mixing machine; The superheated steam that saturation water that steam-water separator is separated and steam superheater come out carries out blending; Utilize superheated steam with saturation water heating and vaporization fully, behind little superheated steam of formation mass dryness fraction 100%, export steam outlet pipe to by the mixed vapour outlet.
8. the high-quality steam production method of a high mass dryness fraction uphole steam generator according to claim 6; It is characterized in that being undertaken by following step: demineralized water is after the feed pump supercharging; Enter into convection section through the convection section inlet tube, in convection section, tentatively heat, secondly enter into radiant section by the convection section outlet; In radiant section, further be heated to the wet saturated steam of 75% to 80% mass dryness fraction; Enter into steam-water separator by the radiant section outlet again, in steam-water separator, carry out carbonated drink separation, isolated mass dryness fraction reaches 99% steam; Steam is entered into by the separate vapour outlet and is heated to overheatedly in the steam superheater, is entered in the mixing machine by the superheater outlet then; Get in the mixing machine by separating water outlet pipe by the isolated high concentration saliferous of steam-water separator saturation water; In mixing machine; The superheated steam that saturation water that steam-water separator is separated and steam superheater come out carries out blending; Utilize superheated steam with saturation water heating and vaporization fully, behind little superheated steam of formation mass dryness fraction 100%, export steam outlet pipe to by the mixed vapour outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008103041347A CN101343989B (en) | 2008-08-22 | 2008-08-22 | High-dryness oil field steam-injection boiler and high-dryness steam production method |
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| CN2008103041347A CN101343989B (en) | 2008-08-22 | 2008-08-22 | High-dryness oil field steam-injection boiler and high-dryness steam production method |
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| CN101343989B true CN101343989B (en) | 2012-08-22 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102102505B (en) * | 2009-12-16 | 2014-01-15 | 中国石油天然气股份有限公司 | Steam injection pipe column for improving dryness of underground steam and steam injection method thereof |
| CN102230612A (en) * | 2011-07-19 | 2011-11-02 | 山东森普瑞石油装备有限公司 | High-dryness steam injection boiler and method |
| CN103162282B (en) * | 2013-03-25 | 2015-07-08 | 中国石油天然气股份有限公司 | Superheated steam generation method and system |
| CN103388816B (en) * | 2013-07-29 | 2015-07-08 | 哈尔滨鑫北源电站设备制造有限公司 | Oil field steam-injection boiler overheated steam injection system |
| CN104033883A (en) * | 2014-06-18 | 2014-09-10 | 西安交通大学 | Oil field steam-drum-type steam injection boiler for producing overheated steam |
| CN104266175B (en) * | 2014-09-30 | 2016-04-13 | 张宏伟 | Oil field gas injection overheated boiler overheating steam desalter and using method thereof |
| CN105910088B (en) * | 2016-05-24 | 2018-07-24 | 中国石油集团渤海石油装备制造有限公司 | A kind of uphole steam generator steam quality lifting device |
| CN106705108A (en) * | 2016-12-29 | 2017-05-24 | 辽宁石油化工大学 | High-temperature flue gas oxygen-doped type oxygen-enriched combustion steam-injection boiler |
| CN106705109A (en) * | 2016-12-29 | 2017-05-24 | 辽宁石油化工大学 | High-temperature flue gas oxygen-doped type superheated steam injection boiler |
| CN106610011B (en) * | 2017-01-05 | 2019-02-05 | 中国石油天然气集团公司 | Demineralizer and oil field overheat steam injection boiler steam demineralizer |
| CN108006437A (en) * | 2017-10-31 | 2018-05-08 | 河南中烟工业有限责任公司 | A kind of system for improving steam quality |
| CN114321868A (en) * | 2020-09-29 | 2022-04-12 | 中国石油天然气股份有限公司 | Movable steam injection boiler and moving method thereof |
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