CN101825279A - Method for achieving water-injecting high-pressure combustion through pipeline of fuel nozzle - Google Patents
Method for achieving water-injecting high-pressure combustion through pipeline of fuel nozzle Download PDFInfo
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- CN101825279A CN101825279A CN 201010140611 CN201010140611A CN101825279A CN 101825279 A CN101825279 A CN 101825279A CN 201010140611 CN201010140611 CN 201010140611 CN 201010140611 A CN201010140611 A CN 201010140611A CN 101825279 A CN101825279 A CN 101825279A
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Abstract
The invention relates to a method for achieving the water-injecting high-pressure combustion through the pipeline of a fuel nozzle. Fuel is allowed to enter a combustion chamber (10) from a fuel nozzle (3); compressed air is allowed to enter the combustion chamber (10) from an air distributor (2); a certain amount of water from a water injection hole (4) is injected into the combustion chamber (10) from the fuel nozzle (3) via the pipeline of the fuel nozzle, so that the operating temperature in the combustion chamber (10) can be reduced from approximate 2,000 DEG C to 1,500-1,600 DEG C; the operating end of an igniter (5) is led to the combustion chamber (10), so that the fuel and air can be ignited by the igniter (5) after the fuel and air entering the combustion chamber (10) are atomized and mixed; and high-temperature and high-pressure flue gas can be generated after the complete combustion. By injecting a certain amount of water into the water injection hole (4) on the pipeline of fuel, part of combustion heat can be absorbed by the water, thus stabilizing the operating temperature in the combustion chamber (10) at 1,500 to 1,600 DEG C. Therefore, the method of the invention has the advantages of high reliability and easy operation and significantly prolongs the service life of the equipment.
Description
Technical field
The present invention relates to a kind of a kind of method that is used for the high pressure mixed gas generating means of oil heating exploitation, belong to the technical field of oil exploration equipment.
Background technology
The production practice of oil is broadly divided into primary oil recovery, secondary oil recovery and repeatedly recovers the oil.Steam-assisted recovery then is typical DP technology repeatedly.Steam-assisted recovery is to utilize the intensification effect of heat energy to reduce the viscosity of crude oil, also increases the pressure of oil reservoir simultaneously to a certain extent, thereby improves the oil recovery of oil well.
Since early 1980s, the practice of China's oil field utilization steam thermal recovery technology shows that this technology is applicable to the low exploitation periodic regime of 800m with oil reservoir in the overlying strata.In its recovery process, strata pressure constantly descends, after exploiting for 6～8 cycles, oil-well strata pressure has lost 70%～90%, promptly lost the necessary potential energy of thermal recovery, cause oil well low adopt can, especially a large amount of heavy oil wells enter the high all after dates of thermal recovery, are forced to closing well and stop adopting because of being lower than the thermal recovery economic boundaries.
Also there are many deficiencies in the steam heat excavating technology that with the high pressure steam boiler is technical characterictic.For example: smoke evacuation not only causes big heat loss, also causes environmental pollution; Equipment investment and operating cost height; Particularly the mobility extreme difference of complete equipment is difficult to adapt to the requirement of oil well working in dispersion.
The deficiency of high cycle of thermal recovery, deep fat, thickness oil reservoir being gathered at steam thermal recovery technology, a kind of new crude oil thermal recovery technology technology was proposed again in recent years---complex media (being the gaseous mixture of flue gas water vapour) thermal methods, be also referred to as gas-vapour thermal recovery, or abbreviate the gaseous mixture thermal recovery as.
Compare with above-mentioned steam boiler thermal recovery technology, Chinese patent application number is CN00210830.5, name is called " heavy crude heat extraction steam, combustion gas mixing gas injection device ", Chinese patent application and number is CN03278103.2, name is called " petroleum thermal recovery gaseous mixture gas injection device ", Chinese patent application and number is CN200420054883.6, and name is called " multifunctional high pressure burner with high efficiency " all certain improvement in succession in every respect.But still there is weak point in these Patent equipments aspect structural design, bring many difficulties to practical application.Be typically: burning indoor temperature too high (about 2000 ℃), under oil well back pressure conditions of higher (actual conditions are like this usually), cause flame high temperature center in the 1. combustion chamber to shift to the counter-fire face of head gradually, head is easily by scaling loss (as counter-fire end face, igniter igniter head, oil burner nozzle atomizer etc.); 2. the burning zone refractory lining is easy to generate explosion, degrades phenomenon under HTHP (2000 ℃, 16MPa), cause the result of use of refractory lining significantly to descend, thereby shortened the service life of burner (or gas injection device) (working day of a gas injection of less than sometimes) greatly.And so on, finally cause gas injection device reliability of operation and economy to be had a strong impact on.
Summary of the invention
Technical problem: the technical problem to be solved in the present invention is that the exploitation for oil especially viscous crude provides a kind of good reliability, easy operating, long-lived water injection type high-pressure combustion method.
Technical scheme: for solving the problems of the technologies described above, technical scheme provided by the invention is:
A kind of method for achieving water-injecting high-pressure combustion through pipeline of fuel nozzle, it is characterized in that: this method is used for a water-injecting high-pressure combustion device, this water-injecting high-pressure combustion device comprises head, burning zone, three parts of mixer, wherein, burning zone is positioned at the centre of this water injection type high-pressure combustor, one end of burning zone is connected with head, and the other end is connected with mixer; In head, be provided with air register, oil burner nozzle, be arranged on the water filling port on the oil burner nozzle pipeline, igniter, blast cap; Burning zone is a cylinder-like structure, is the combustion chamber in the middle of it, and the outside, combustion chamber is a collet, and the collet outside is a cooling jacket, and cooling jacket is provided with the cooling jacket inlet union; Mixer is a hollow column, hollow part is a mixing chamber in the middle of it, be provided with silencer cover in the mixing chamber, the end that this mixer and burning zone join is provided with thermosistor, be provided with thermosistor inlet union, reducing lining at the thermosistor place, reducing lining one end and thermosistor inlet union with join, the other end and silencer cover join; Outlet(discharge) flange is positioned at the outer end of mixer;
This water injection type high-pressure combustion method comprises the steps:
Fuel oil enters the combustion chamber from oil burner nozzle, and compressed air enters the combustion chamber from air register, to combustion chamber injects a certain amount of water by the oil burner nozzle pipeline from oil burner nozzle from water filling port, makes the operating temperature in the combustion chamber drop to 1500～1600 ℃ from about 2000 ℃; The combustion chamber is also led in the working end of igniter, atomizing mixed after fuel oil and air entered the combustion chamber, light by igniter, produce high temperature and high pressure flue gas after the completing combustion, water filling port from the fuel pipe injects the absorption portion combustion heat behind a certain amount of water, make the operating temperature in the combustion chamber be stabilized in 1500～1600 ℃, enter thermosistor then and cooling water converges, other has one water to enter cooling jacket by the inlet union of the cooling jacket that is provided with in the burning zone, by cooling jacket outlet enters in the thermosistor through the spray orifice of thermosistor and converges with high temperature and high pressure flue gas again, this strand mixed airflow enters silencer cover through the reducing lining, enter mixing chamber behind the vibration silencer, mix the back and enter oil country tubular good by outlet(discharge) flange.
Preferably, behind the injection water, the operating temperature in the combustion chamber can remain on 1500 ℃-1600 ℃.
Beneficial effect:
1, because injected water volume has absorbed a certain amount of combustion heat, greatly reduce operating temperature in the combustion chamber (during by not water filling about 2000 ℃ drop to 1500～1600 ℃ after the water filling), make the operating temperature of head and burning zone body and gaseous mixture generating means critical piece can both remain in the tolerance band of material, thereby improved the job stability of this device effectively, prolong the continuous firing cycle, made this device can become the approved product of effectively putting on market.
2, after the water filling, because the operating temperature in the combustion chamber can remain on 1500～1600 ℃, therefore, still can guarantee the combustion chamber temperature level, thereby guarantee the abundant burning of fuel, its efficiency of combustion still can almost reach 100%.And injected water volume and institute's heat content thereof still remain in the gaseous mixture, therefore, have still kept the thermal efficiency of this device, make this device can realize efficient, energy-conservation and the long-term safety operation.
3, water filling port being arranged on the atomizer pipeline, can avoiding making that in the other perforate of burner head the burner head structure is simplified, is the reliability of mixture gas generating device thereby improved burner.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the local structure for amplifying schematic diagram of burner head 1 among Fig. 1 of the present invention;
Have among the figure: head 1, air register 2, oil burner nozzle 3, water filling port 4, igniter 5, blast cap 6.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
The objective of the invention is for petroleum thermal recovery gas injection high pressure mixing gas generating means provides a kind of new method, can be oil especially the exploitation of viscous crude create the alternative new technology of a kind of good reliability, easy operating, operating period long (critical piece can continuous operation 8000 hours), efficient energy-saving.
The high temperature and high pressure flue gas that this device utilizes diesel oil, crude oil, natural gas or liquefied gas and compressed air burning back to produce is mixed with water, thereby produces temperature, the visual requirement of humidity gaseous mixture that regulate, that mainly be made up of N2, CO2, water vapour (H2O).This mixture gas generating device is mainly used in the heating exploitation of oil, the gaseous mixture that this mixture gas generating device is produced directly injects oil well, can effectively improve the recovery ratio of oil, particularly viscous crude, to substitute traditional be the oil recovery new technology of technical characterictic with the high pressure steam boiler for a kind of.
Referring to Fig. 1, Fig. 2, a kind of method for achieving water-injecting high-pressure combustion through pipeline of fuel nozzle provided by the invention, this method is used for a water-injecting high-pressure combustion device, this water-injecting high-pressure combustion device comprises head 1, burning zone 7,12 3 parts of mixer, and wherein, burning zone 7 is positioned at the centre of this water injection type high-pressure combustor, one end of burning zone 7 is connected with head 1, and the other end is connected with mixer 13; In head 1, be provided with air register 2, oil burner nozzle 3, be arranged on the water filling port 4 on oil burner nozzle 3 pipelines, igniter 5, blast cap 6; Burning zone 7 is a cylinder-like structure, is combustion chamber 10 in the middle of it, and 10 outsides, combustion chamber are collets 8, and collet 8 outsides are cooling jackets 9, and cooling jacket 9 is provided with cooling jacket inlet union 18; Mixer 12 is a hollow column, hollow part is a mixing chamber 14 in the middle of it, be provided with silencer cover 13 in the mixing chamber 14, this mixer 13 is provided with thermosistor 17 with the end that burning zone 7 joins, be provided with thermosistor inlet union 11, reducing lining 16 at thermosistor 17 places, reducing lining 16 1 ends and thermosistor inlet union 11 with join, the other end and silencer cover 13 join; Outlet(discharge) flange 15 is positioned at the outer end of mixer 13;
This water injection type high-pressure combustion method comprises the steps:
Fuel oil enters combustion chamber 10 from oil burner nozzle 3, compressed air enters combustion chamber 10 from air register 2, to combustion chamber 10 inject a certain amount of water by the oil burner nozzle pipeline from oil burner nozzle 3 from water filling port 4, make the operating temperature in the combustion chamber 10 drop to 1500～1600 ℃ from about 2000 ℃; Combustion chamber 10 is also led in the working end of igniter 5, fuel oil and air enter combustion chamber 10 back atomizings to be mixed, light by igniter 5, produce high temperature and high pressure flue gas after the completing combustion, water filling port 4 from the fuel pipe injects the absorption portion combustion heat behind a certain amount of water, make the operating temperature in the combustion chamber 10 be stabilized in 1500～1600 ℃, entering thermosistor 17 then converges with cooling water, other has one water to enter cooling jacket 9 by the inlet union 18 of the cooling jacket 9 that is provided with in the burning zone 7, by cooling jacket 9 outlet enters thermosistor 17 in and high temperature and high pressure flue gas is converged through the spray orifice of thermosistor 17 again, this strand mixed airflow enters silencer cover 13 through reducing lining 16, enter mixing chamber 14 behind the vibration silencer, mix the back and enter oil country tubular good by outlet(discharge) flange 15.
After injecting water, the operating temperature in the combustion chamber 10 can remain on 1500 ℃-1600 ℃.
With reference to figure 1, method provided by the invention is as follows.On oil burner nozzle 3 pipelines, a water filling port 4 is set at burner head 1, inject a certain amount of water, this injection water sprays into the combustion chamber with fuel oil, makes combustion chamber temperature drop to 1500～1600 ℃ from about 2000 ℃, thereby guarantees that this device can the stable operation of long-term safety.Fuel oil enters combustion chamber 10 from oil burner nozzle 3, and compressed air enters combustion chamber 10 from air register 2, and combustion chamber 10 is also led in the working end of igniter 5.
During present embodiment work, fuel oil and air enter combustion chamber 10 back atomizings to be mixed, light by igniter 5, produce high temperature and high pressure flue gas after the completing combustion, inject the absorption portion combustion heat behind a certain amount of water from fuel pipe, make the operating temperatures in the burning zone 7 be stabilized in 1500～1600 ℃, enter thermosistor then and cooling water converges.Other has one water to enter cooling jacket 9 by the inlet union 18 of the cooling jacket 9 that is provided with in the burning zone 7, and by cooling jacket 9 outlets enter in the thermosistor through the spray orifice of thermosistor 17 and converge with high temperature and high pressure flue gas again.This strand mixed airflow enters silencer cover 13 through reducing lining 16, enters mixing chamber 14 behind the vibration silencer, mixes the back and enters oil country tubular good by outlet(discharge) flange 15.
Claims (2)
1. method for achieving water-injecting high-pressure combustion through pipeline of fuel nozzle, it is characterized in that: this method is used for a water-injecting high-pressure combustion device, this water-injecting high-pressure combustion device comprises head (1), burning zone (7), (12) three parts of mixer, wherein, burning zone (7) is positioned at the centre of this water injection type high-pressure combustor, one end of burning zone (7) is connected with head (1), and the other end is connected with mixer (13); In head (1), be provided with air register (2), oil burner nozzle (3), be arranged on the water filling port (4) on oil burner nozzle (3) pipeline, igniter (5), blast cap (6); Burning zone (7) is a cylinder-like structure, is combustion chamber (10) in the middle of it, and combustion chamber (10) outside is collet (8), and collet (8) outside is cooling jacket (9), and cooling jacket (9) is provided with cooling jacket inlet union (18); Mixer (12) is a hollow column, hollow part is mixing chamber (14) in the middle of it, be provided with silencer cover (13) in the mixing chamber (14), this mixer (13) is provided with thermosistor (17) with the end that burning zone (7) joins, locate to be provided with thermosistor inlet union (11), reducing lining (16) at thermosistor (17), reducing lining (16) one ends and thermosistor inlet union (11) with join, the other end and silencer cover (13) join; Outlet(discharge) flange (15) is positioned at the outer end of mixer (13);
This water injection type high-pressure combustion method comprises the steps:
Fuel oil enters combustion chamber (10) from oil burner nozzle (3), compressed air enters combustion chamber (10) from air register (2), to combustion chamber (10) inject a certain amount of water by the oil burner nozzle pipeline from oil burner nozzle (3) from water filling port (4), make the operating temperature in the combustion chamber (10) drop to 1500～1600 ℃ from about 2000 ℃; Combustion chamber (10) is also led in the working end of igniter (5), fuel oil and air enter the atomizing of back, combustion chamber (10) to be mixed, light by igniter (5), produce high temperature and high pressure flue gas after the completing combustion, water filling port (4) from the fuel pipe injects the absorption portion combustion heat behind a certain amount of water, make the operating temperature in the combustion chamber (10) be stabilized in 1500～1600 ℃, entering thermosistor (17) then converges with cooling water, other has one water to enter cooling jacket (9) by the inlet union (18) of the cooling jacket (9) that is provided with in the burning zone (7), by cooling jacket (9) outlet enters thermosistor (17) in and high temperature and high pressure flue gas is converged through the spray orifice of thermosistor (17) again, this strand mixed airflow enters silencer cover (13) through reducing lining (16), enter mixing chamber (14) behind the vibration silencer, mix the back and enter oil country tubular good by outlet(discharge) flange (15).
2. method for achieving water-injecting high-pressure combustion through pipeline of fuel nozzle according to claim 1 after it is characterized in that injecting water, makes the operating temperature in the combustion chamber (10) remain on 1500 ℃-1600 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010140611 CN101825279A (en) | 2010-04-06 | 2010-04-06 | Method for achieving water-injecting high-pressure combustion through pipeline of fuel nozzle |
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| CN 201010140611 CN101825279A (en) | 2010-04-06 | 2010-04-06 | Method for achieving water-injecting high-pressure combustion through pipeline of fuel nozzle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174338A (en) * | 2010-12-31 | 2011-09-07 | 中国航天科技集团公司第六研究院第十一研究所 | Low-flow, high-mixing ratio and stepless regulation gas-liquid mixing gas generator |
| CN102353052A (en) * | 2011-08-09 | 2012-02-15 | 江苏大江石油科技有限公司 | High pressure combustion air distribution structure for compound heat carrier generator |
| CN107576502A (en) * | 2017-08-10 | 2018-01-12 | 中国北方发动机研究所(天津) | A kind of turbocharger test platform combustion chamber with mixing section |
| CN108442914A (en) * | 2018-05-29 | 2018-08-24 | 吉林大学 | A kind of system and method for oil shale in-situ cracking |
| WO2020215797A1 (en) * | 2019-04-26 | 2020-10-29 | 山东华曦石油技术服务有限公司 | Dryness improving device and method for improving dryness of steam of steam injection boiler |
| RU2776226C1 (en) * | 2019-04-26 | 2022-07-14 | Бэйцзин Хуаси Петролеум Сервис Петролеум Текнолоджи Ко., Лтд | Dry increasing device and method for increasing steam drying degree of boiler for steam injection |
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| US4244684A (en) * | 1979-06-12 | 1981-01-13 | Carmel Energy, Inc. | Method for controlling corrosion in thermal vapor injection gases |
| CN1804366A (en) * | 2005-12-23 | 2006-07-19 | 江苏大江石油科技有限公司 | High-temperature high-pressure combustion system of sub-critical composite heat carrier generator |
| CN101067372A (en) * | 2007-06-07 | 2007-11-07 | 苏州新阳光机械制造有限公司 | High-pressure mixed gas generator used for petroleum thermal recovery gas injection machine |
| CN201013341Y (en) * | 2007-06-07 | 2008-01-30 | 苏州新阳光机械制造有限公司 | High-pressure gaseous mixture generating device with water spray thermo-regulator |
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2010
- 2010-04-06 CN CN 201010140611 patent/CN101825279A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4244684A (en) * | 1979-06-12 | 1981-01-13 | Carmel Energy, Inc. | Method for controlling corrosion in thermal vapor injection gases |
| CN1804366A (en) * | 2005-12-23 | 2006-07-19 | 江苏大江石油科技有限公司 | High-temperature high-pressure combustion system of sub-critical composite heat carrier generator |
| CN101067372A (en) * | 2007-06-07 | 2007-11-07 | 苏州新阳光机械制造有限公司 | High-pressure mixed gas generator used for petroleum thermal recovery gas injection machine |
| CN201013341Y (en) * | 2007-06-07 | 2008-01-30 | 苏州新阳光机械制造有限公司 | High-pressure gaseous mixture generating device with water spray thermo-regulator |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174338A (en) * | 2010-12-31 | 2011-09-07 | 中国航天科技集团公司第六研究院第十一研究所 | Low-flow, high-mixing ratio and stepless regulation gas-liquid mixing gas generator |
| CN102174338B (en) * | 2010-12-31 | 2013-08-07 | 中国航天科技集团公司第六研究院第十一研究所 | Low-flow, high-mixing ratio and stepless regulation gas-liquid mixing gas generator |
| CN102353052A (en) * | 2011-08-09 | 2012-02-15 | 江苏大江石油科技有限公司 | High pressure combustion air distribution structure for compound heat carrier generator |
| CN102353052B (en) * | 2011-08-09 | 2013-03-27 | 江苏大江石油科技有限公司 | High pressure combustion air distribution structure for compound heat carrier generator |
| CN107576502A (en) * | 2017-08-10 | 2018-01-12 | 中国北方发动机研究所(天津) | A kind of turbocharger test platform combustion chamber with mixing section |
| CN107576502B (en) * | 2017-08-10 | 2019-11-12 | 中国北方发动机研究所(天津) | A kind of turbocharger test platform combustion chamber with mixing section |
| CN108442914A (en) * | 2018-05-29 | 2018-08-24 | 吉林大学 | A kind of system and method for oil shale in-situ cracking |
| WO2020215797A1 (en) * | 2019-04-26 | 2020-10-29 | 山东华曦石油技术服务有限公司 | Dryness improving device and method for improving dryness of steam of steam injection boiler |
| RU2776226C1 (en) * | 2019-04-26 | 2022-07-14 | Бэйцзин Хуаси Петролеум Сервис Петролеум Текнолоджи Ко., Лтд | Dry increasing device and method for increasing steam drying degree of boiler for steam injection |
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Open date: 20100908 |