CN106032746A - Boiler directly-discharged flue gas ground recovery and injection device - Google Patents
Boiler directly-discharged flue gas ground recovery and injection device Download PDFInfo
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- CN106032746A CN106032746A CN201510109959.3A CN201510109959A CN106032746A CN 106032746 A CN106032746 A CN 106032746A CN 201510109959 A CN201510109959 A CN 201510109959A CN 106032746 A CN106032746 A CN 106032746A
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- Prior art keywords
- flue gas
- boiler
- injection
- ground
- recovery
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Links
- 239000003546 flue gas Substances 0.000 title claims abstract description 52
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000002347 injection Methods 0.000 title claims abstract description 31
- 239000007924 injection Substances 0.000 title claims abstract description 31
- 238000011084 recovery Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000009977 dual effect Effects 0.000 claims abstract 2
- 239000008246 gaseous mixture Substances 0.000 claims description 2
- 230000006837 decompression Effects 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 abstract description 3
- 239000002918 waste heat Substances 0.000 abstract description 3
- 230000000704 physical effect Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 17
- 230000008901 benefit Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000010795 Steam Flooding Methods 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention provides a novel boiler directly-discharged flue gas recovery and injection device, which is used for recovery and utilization of directly-discharged flue gas of a thermal recovery boiler in an oil field and is suitable for pumping fluid with instable physical property or slightly corrosive fluid. The key technology lies in circular array arrangement of fluid jetting units which implement the flue gas recovery function and linear array integrated design of the fluid jetting units which implement the boost injection function, so as to achieve the purpose of dual functions of boiler flue gas recovery and injection. A recovery and injection dual-function injection device is designed by adopting the skid-mounted and vehicle-mounted way and is integrated with a machine hybrid filter device, a direction adjusting valve, a steam distributor and relevant sensing elements to form the boiler directly-discharged flue gas ground recovery and injection device. The ground process is extremely simplified without the need of deliberate anti-corrosion, thereby greatly extending the operation cycle of equipment. Waste heat of flue gas can be directly used, thereby improving the flue-gas oil displacement efficiency.
Description
Technical field
The present invention is that a kind of in line flue gas of New-type boiler reclaims injection device, it is mainly used in the in line flue gas of oil thermal recovery boiler to recycle, it is suitable for the fluid that pumping physical property is unstable, cannot be pumped by gently corroding with conventional-volume method vast scale or technological gap will be filled up in the field such as harmful substance.This device surface technology flow process is overly simplified, it is not necessary to deliberately anticorrosion, very big extension device cycle of operation, and can directly apply flue gas waste heat, improves flue gas oil displacement efficiency, has a extensive future.
Background technology
At present, many employings thermal recovery boiler in oil field provides the high temperature and high pressure steam of flood tide for steam flooding, and a large amount of flue gases of association are usually directly discharged in air, have both wasted the useful energy including heat energy, and also great threat Environmental Safety.Once attempted reinjection into reservoir after the cooling of flue gas ground and anticorrosion pretreatment, through repeatedly on-the-spot test, it is difficult to continuously run because of the old superfluous complexity of flow process, pumping equipment eventually, adds that investment remains high, cost exceeds the reasons such as red line, still stagnate in experimental stage.
Summary of the invention
The high-temperature flue gas that oil thermal recovery boiler produces, not only causes environmental pollution, the heat energy that serious waste is huge again in discharge air, recycles in the auxiliary displacement of reservoir oil, turns waste into wealth, and economic benefit, environmental protection achievement bring out the best in each other.The present invention is used recovery to inject the in line flue gas of difunctional boiler and is reclaimed injection device, need not lower the temperature save heat transmission equipment, with high steam mixing inject without power compressor, simplify other pretreatment ground flow of flue gas, contrast existing flue gas injection device flow process and there is obvious technology and cost advantage.
Key technology is that performing flue gas reclaims the jet units circumference array arrangement of function and perform the jet units linear array Integrated design of supercharging function of injecting, and multiple physical field fitting technique realizes boiler flue recovery and injects bifunctional purpose.
Supercharging function of injecting takes jet units linear array, quantitatively mates jet units inlet pressures at different levels.Steam and the gaseous mixture of flue gas, form series connection power system by linear superposition logical relation, and multi-stage booster is finally reached purpose oil reservoir injection pressure level.
Reclaiming the difunctional injection device of injection can take skid and vehicle-mounted mode to design, and defecator miscellaneous with machine, direction regulate the integrated boiler in line flue gas ground such as valve, steam distributor, related transducer element and reclaim injection device.This surface technology flow process is overly simplified, it is not necessary to deliberately anticorrosion, very big extension device cycle of operation, and can directly apply flue gas waste heat, improves flue gas oil displacement efficiency.
As shown in Figure 1, injection device is reclaimed on boiler in line flue gas ground, reclaims injection flow process and is made up of oil thermal recovery boiler 1, high temperature and high pressure steam outlet 2, steam inlet 3, waste gas inlet 4, ground increase-volume jet tube bundle array 5, mixing waste gas inlet 6, ground boosting jet pump system 7, vapor chimneys gas outlet 8, thermal production well mouth 9, down-hole steam injection tubing string 10, sleeve pipe 11.
The in line flue gas of boiler is inhaled into increase-volume tube bundle array 5 via waste gas inlet 4；High temperature and high pressure steam is then exported 2 through pipeline to steam inlet 3 by thermal recovery boiler；High steam enters jet tube bundle array, multiple physical field parallel connection matching, and steam equal-pressure-difference is carried under one's arms flue gas high velocity jet, slows down boosting through jet segment, flows into mixing waste gas inlet 6 after the mixing of vapor chimneys gas；Under the multi-stage booster effect of ground boosting jet pump system 7, vapor chimneys gas outlet 8 reaches to design injection pressure；Vapor chimneys gas after increase-volume supercharging normally injects purpose oil reservoir via down-hole steam injection tubing string.
Flue gas reclaims function of injecting and realizes process such as Fig. 2, shown in 3.
Fig. 2, flue gas reclaims, jet units circumference array, multiple physical field parallel connection matching, and unit two ends pressure reduction is equal, the unit of flow superposition after parallel connection, and operation is reclaimed on the ground completing the in line flue gas of boiler.
Fig. 3, supercharging injection process, jet units linear array, multiple physical field docking matching, unit cross section flue-gas flow rate is equal, the unit pressure reduction superposition after matching, multi-stage booster, until it reaches the injection pressure condition of purpose oil reservoir.
Technical advantage
1, directly increase production.Test both at home and abroad is it has been proved that based on the non-hydrocarbon gases oil recovery technique of nitrogen and carbon dioxide, directly can bring up to more than 60% by recovery ratio.As in line flue gas auxiliary steam displacement of reservoir oil main process, re-injection flue gas improves oil displacement efficiency 5 ~ 20%, and this means that it is up to 12% to the contribution of recovery ratio, the most also has more than 5%.Certain oil thermal recovery heavy oil reserves of illustrating employs 500,000,000 tons, by 100 years planning rate of oil productions, being widely implemented of re-injection flue gas main process technology, it is contemplated that year incremental oil production 25 ~ 600,000 tons.
2, rough cost comparative benefits is obvious.Relative to making nitrogen by pressure swing adsorption technology, in line flue gas ground injection device, equipment investment about 70% can be greatly reduced, it is not necessary to other puts into.Owing to exempting the electricity charge (or fuel oil expense) and the labour cost (being equivalent to the 68.3% of direct cost) accounting for major part, simple flow compressing secure management and control link, this technology, in terms of running cost, also takes up absolute advantages.For the existing flue gas ground reinjection apparatus of on-the-spot application, the fee of materials such as compressor, expenditure on power, labour cost and medicament can be saved, the running cost of boiler in line flue gas ground recovery injection device, not as good as 1/10th, has superpower technology and cost competitiveness, and great commercial introduction is worth.
3, obvious environment benefit.Illustrate certain oil field every year as fuel consumption crude oil (equivalent) nearly million tons, crude oil CO2Emission factor takes 3.07, year carbon emission about 30,000 tons, reduce such flood tide pollutant emission, this is the environmental benefit of book.If converting by current international practice way, country, area or enterprise's carbon emission index are fixed a price for dollar and are carried out carbon transaction, and the annual carbon transaction dollar that oilfield enterprise's minimizing carbon emission is obtained also is appreciable.
Accompanying drawing illustrates:
Fig. 1 is that injection device structural representation is reclaimed on increase-volume supercharging double acting in line flue gas ground.
Fig. 2 is that increase-volume jet in ground restrains pump configuration schematic diagram.
Fig. 3 is down-hole multilevel boosting jet pump architecture schematic diagram.
Claims (6)
1. one kind novel is reclaimed injection device for oil thermal recovery boiler in line flue gas ground, it is characterised in that uses ground integrated flue gas to reclaim and injects dual function apparatus, has combined boiler in line flue gas ground and has reclaimed booster pump and deliver to two functions of oil reservoir.
2. the flue gas that right 1 requires reclaims operation, is that the flue gas arranged by jet units circumference array reclaims tube bank pump execution.High steam, via jet units front end, cross-sectional constriction speed-raising decompression, sucks flue gas, through jet segment and steam.
3. jet segment tube bank end, gaseous mixture equipressure collects, and taps into inlet/outlet ring flange and lead to supercharging flow process, completes in line flue gas and reclaims operation.
4. the supercharging function of injecting that right 1 requires, take jet units linear array, quantitatively mating jet units inlet steams at different levels and the mixture pressure of flue gas, form series connection power system by linear superposition logical relation, multi-stage booster is finally reached purpose oil reservoir injection pressure level.
5. flue gas ground involved by right 2,3,4 reclaim, supercharging function of injecting, reclaimed the tube bundle array in line flue gas of normal pressure recovery boiler by flue gas respectively, then reached the design condition of flue gas re-injection oil reservoir by ground supercharging injection pump system multi-stage booster.
6. the boiler in line flue gas ground involved by right 5 is reclaimed, supercharging injection device can take skid to design, and defecator miscellaneous with machine, direction regulation valve, steam distributor, relevant parameter gather the integrated boiler in line flue gas ground such as sensing element and reclaim injection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109959.3A CN106032746A (en) | 2015-03-13 | 2015-03-13 | Boiler directly-discharged flue gas ground recovery and injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109959.3A CN106032746A (en) | 2015-03-13 | 2015-03-13 | Boiler directly-discharged flue gas ground recovery and injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106032746A true CN106032746A (en) | 2016-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510109959.3A Pending CN106032746A (en) | 2015-03-13 | 2015-03-13 | Boiler directly-discharged flue gas ground recovery and injection device |
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| CN (1) | CN106032746A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3705625A (en) * | 1971-10-22 | 1972-12-12 | Shell Oil Co | Steam drive oil recovery process |
| CN2650860Y (en) * | 2003-10-16 | 2004-10-27 | 辽河石油勘探局 | Vapour-gas mixer |
| CN2871830Y (en) * | 2006-03-31 | 2007-02-21 | 辽河石油勘探局 | Jetted steam, CO and N combined supplier for production of oil field |
| CN103233709A (en) * | 2013-05-13 | 2013-08-07 | 中国石油大学(华东) | A CCUS system and method based on CO2-assisted SAGD to exploit super-heavy oil reservoirs |
| CN203394485U (en) * | 2013-07-12 | 2014-01-15 | 中国石油天然气股份有限公司 | Device for carrying out thickened oil thermal recovery by utilizing boiler flue gas |
-
2015
- 2015-03-13 CN CN201510109959.3A patent/CN106032746A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3705625A (en) * | 1971-10-22 | 1972-12-12 | Shell Oil Co | Steam drive oil recovery process |
| CN2650860Y (en) * | 2003-10-16 | 2004-10-27 | 辽河石油勘探局 | Vapour-gas mixer |
| CN2871830Y (en) * | 2006-03-31 | 2007-02-21 | 辽河石油勘探局 | Jetted steam, CO and N combined supplier for production of oil field |
| CN103233709A (en) * | 2013-05-13 | 2013-08-07 | 中国石油大学(华东) | A CCUS system and method based on CO2-assisted SAGD to exploit super-heavy oil reservoirs |
| CN203394485U (en) * | 2013-07-12 | 2014-01-15 | 中国石油天然气股份有限公司 | Device for carrying out thickened oil thermal recovery by utilizing boiler flue gas |
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Application publication date: 20161019 |