WO2007071203A1 - Systeme de combustion haute temperature et haute pression de generateur d'agent caloporteur de compose sous-critique - Google Patents

Systeme de combustion haute temperature et haute pression de generateur d'agent caloporteur de compose sous-critique Download PDF

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Publication number
WO2007071203A1
WO2007071203A1 PCT/CN2006/003581 CN2006003581W WO2007071203A1 WO 2007071203 A1 WO2007071203 A1 WO 2007071203A1 CN 2006003581 W CN2006003581 W CN 2006003581W WO 2007071203 A1 WO2007071203 A1 WO 2007071203A1
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WO
WIPO (PCT)
Prior art keywords
combustion chamber
head
peripheral wall
casing
nozzle
Prior art date
Application number
PCT/CN2006/003581
Other languages
English (en)
Chinese (zh)
Inventor
Dianxi Liu
Bing Guan
Original Assignee
Jiangsu Great River Otech Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Great River Otech Co., Ltd filed Critical Jiangsu Great River Otech Co., Ltd
Publication of WO2007071203A1 publication Critical patent/WO2007071203A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/02—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/16—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot liquid or hot vapour, e.g. waste liquid, waste vapour

Definitions

  • the present invention relates to a composite heat carrier generator, and more particularly to a high temperature pressure combustion system for a subcritical composite heat carrier generator. It belongs to the technical field of oil production equipment. Background technique
  • the saturated water vapor generating device is called a wet saturated steam generator.
  • the wet saturated water steam generator is a low pressure combustion of fuel and air in the combustion chamber, and the water in the water pipe is heated to vaporize to generate high pressure saturated steam.
  • the pressure of water vapor can be as high as 20 MPa, and this pressure is used to inject water vapor into the oil layer.
  • the combustion products produced by this equipment are directly discharged into the atmosphere, which not only pollutes the environment, but also takes about 10% of the fuel.
  • the main components of the combustion products are carbon dioxide and nitrogen, these two substances are useful for the three extractions of heavy oil and thin oil layers.
  • a composite heat carrier generator also called a gas steam generator
  • the gas steam generator is a high-pressure combustion of fuel and air in a combustion chamber (combustion pressure can be as high as 20 MPa), generating high temperature and high pressure gas, and vaporizing water injected at the rear end of the combustion chamber into water vapor by high temperature and high pressure gas.
  • a mixed gas of gas and water vapor called a composite heat carrier.
  • the composite heat carrier has a pressure of up to 20 MPa and a temperature of 350 °C.
  • the composite heat carrier uses its own pressure to directly inject the oil layer through the thermal recovery wellhead and tubing.
  • ZL02231765.1 discloses a gas steam generator consisting of a combustion chamber head, a combustion chamber housing, a combustion chamber lining, a vaporization chamber housing, a cooling water passage, and a seal. It uses the front end of the head to increase The oil-rich and oxygen-reducing secondary combustion-reducing mechanism, the circumferential wall of the outlet end of the inner wall of the combustion chamber, and the water-spraying hole and the inner wall of the inner wall of the inlet end of the inner wall of the vaporization chamber section with the cooling water passage
  • There are a series of technical measures such as cooling water passages to solve the above ablation, deformation, damage, etc.
  • the front section of the vaporization chamber is sleeved in the rear section of the combustion chamber, and the two are sealed by ordinary sealing rings. Because the ordinary sealing ring is not resistant to temperature, the cooling effect of the sealing ring is not good, and the sealing is not reliable.
  • the components of the combustion chamber head such as air nozzles, oil nozzles, oil nozzles, water nozzles, cyclones, etc., are fixedly connected to the head housing by welding, and these components are all high temperature. High-pressure wearing parts, therefore, it is inconvenient to carry out maintenance and replacement after using this connection method. Summary of the invention
  • the object of the present invention is to overcome the above-mentioned deficiencies and to provide a high-temperature ramming combustion system capable of satisfying a highly reliable sealing subcritical composite heat carrier generator having a combustion temperature of 2000 ⁇ or more and a maximum working pressure of subcritical pressure.
  • a high temperature and high pressure combustion system of a subcritical composite heat carrier generator comprising a combustion chamber head, a combustor casing, a combustor liner and a vaporization chamber casing, said combustion chamber
  • the head is inserted into the front end of the combustion chamber housing, and the vaporization chamber housing is connected to the rear end of the combustion chamber housing.
  • the combustion chamber inner liner is disposed on the inner peripheral wall of the combustion chamber housing, and water is formed between the outer peripheral wall and the inner peripheral wall of the combustion chamber housing.
  • a spacer is arranged on the inner peripheral wall of the inner liner of the combustion chamber, the water nozzle is connected with the water spacer, the inner chamber of the combustion chamber is a combustion chamber, and the inner chamber of the vaporization chamber is a vaporization chamber, and the combustion chamber housing is a metal sealing member is embedded in the middle of the connecting end of the vaporization chamber housing, the front and rear sealing surfaces of the metal sealing member are spherical surfaces, and the sealed surface of the combustion chamber housing and the vaporization chamber housing is an inner tapered surface;
  • the rear end of the combustion chamber liner is extended to the inner peripheral wall of the front end of the metal seal and the vaporization chamber, and a water spacer is formed between the outer peripheral wall of the front end and the inner peripheral wall of the metal seal.
  • the metal seal is always in line contact with the combustor casing and the vaporization chamber casing, and the seal is reliable.
  • the metal sealing member is cooled by the cooling water, and then sprayed into the vaporization chamber from the water nozzle, thereby improving the high temperature and high pressure resistance of the metal sealing member.
  • the combustion chamber housing and the vaporization chamber are connected by an intermediate metal seal to realize the dynamic and static sealing of the two ends of the combustion chamber liner.
  • the back end of the combustion chamber liner is a static seal, and the front end is freely placed.
  • the specific method is as follows: a threaded flange extends rearwardly from the rear end of the metal seal, the inner wall of the threaded flange is provided with an internal thread, and the outer peripheral wall of the rear end of the combustion chamber liner is provided with an external thread, the external thread Cooperating with the internal thread on the inner wall of the threaded flange; the front end of the combustion chamber liner is freely placed between the outer peripheral wall of the combustion chamber head and the inner peripheral wall of the front end of the combustion chamber, and between the inner peripheral wall and the outer peripheral wall of the combustion chamber head Set the "0" seal seal.
  • the combustion chamber lining and the combustion chamber housing are statically sealed at one end, and the first end is sealed with a sliding seal, and is statically sealed at the exit of the combustion chamber, and the metal sealing member is skillfully connected with one end of the combustion chamber lining, and the thread on the metal sealing member is threaded.
  • the blue pressure is intermediate between the combustion chamber housing and the vaporization chamber housing, on the one hand sealing the combustion chamber housing and the vaporization chamber housing, and on the other hand sealing the combustion chamber liner rear end and the combustion chamber housing.
  • the dynamic seal is sealed between the outer peripheral wall of the head casing and the inner peripheral wall of the front end of the combustion chamber lining with a "0" type sealing ring.
  • the combustion chamber lining is close to internal combustion, the temperature is high, the expansion amount is large, and the front end of the combustion chamber lining can be extended. The direction is free to expand and contract.
  • the combustion chamber head includes a head housing, an air nozzle, a oil nozzle, an oil nozzle, a cyclone, a spark plug and a water nozzle,
  • the spark plug and the water nozzle are inserted into the wall of the head shell, and the water nozzle is in communication with the water partition, and the air nozzle and the oil nozzle and the oil nozzle are inserted into the middle hole of the head shell.
  • the cyclone is movably connected to the front end of the head casing, and a spiral cyclone groove is arranged circumferentially on the outer peripheral wall of the cyclone, and the cyclone inner cavity forms a pre-combustion chamber with the head casing.
  • the air enters the pre-chamber from the hole in the head casing and burns with the diesel fuel injected from the oil nozzle and the oil nozzle.
  • the oil-rich gas temperature is lower than the temperature of the complete combustion gas, and the inside of the head is not burned.
  • the remaining air flows out from the bypass inclined hole on the wall of the head shell, flows along the cyclone groove on the outer peripheral wall of the cyclone, enters the combustion chamber, collides with the rich gas burning in the pre-combustion chamber, mixes and re-ignites, fully combustion.
  • the components of the combustion head such as the air nozzle, the oil nozzle, the oil nozzle, the water nozzle, the cyclone, etc., are connected to the head housing by means of plugging or screwing, so It is convenient to repair and replace the various parts mentioned above to improve the scope of use.
  • the air flow flowing through the cyclone groove on the outer peripheral wall of the cyclone is skillfully utilized in the outer circumference of the cyclone.
  • Air film cooling is formed between the wall and the inner peripheral wall of the inner liner of the combustion chamber.
  • the water nozzles on the inner peripheral wall of the rear section of the combustion chamber lining are distributed in a plurality of rows before and after the length of the lining, and the front drainage nozzles are used in the inner row.
  • the lining line direction is left-handed, right-handed or right-handed, left-handed, or left-right-right, right-left, left-left, and the last drain nozzle is arranged in the radial direction.
  • the first few rows of tangential directions facilitate liquid film cooling along the inner wall of the inner liner, and the last row of radial directions facilitates mixing, atomization and vaporization with the combustion chamber vapor stream.
  • the water spacer forms a spiral or vertical cooling water passage.
  • the cooling water runs spirally or linearly in the water partition, and the water used for atomization first enters the water partition, flows in the spiral direction or in the straight line, and regenerates the combustion chamber lining, and simultaneously supplies water. Preheating, easy to vaporize in the vaporization chamber.
  • the high-temperature and high-pressure combustion system of the subcritical composite heat carrier generator of the present invention can fully satisfy the requirement of high reliability sealing under the condition that the combustion temperature is above 2000 ° C and the working pressure is subcritical pressure.
  • FIG. 1 is a schematic view of a high temperature and high pressure combustion system of a subcritical composite heat carrier generator of the present invention.
  • Fig. 2 is an enlarged cross-sectional view taken along line A-A of Fig. 1.
  • Figure 3 is an enlarged view of I of Figure 1.
  • Figure 4 is an enlarged view of II of Figure 1.
  • Figure 5 is a left side view of Figure 1.
  • Fig. 6 is an enlarged cross-sectional view taken along line B-B of Fig. 5.
  • the high temperature and high pressure combustion system of the subcritical composite heat carrier generator of the present invention mainly comprises a combustion chamber head 1, a combustion chamber housing 2, a combustion chamber liner 3, a metal seal 5, and a vaporization chamber housing. 6.
  • the coupling flange 7, the stud 8, the nut 9 and the lens pad 10 are composed.
  • the inner chamber of the combustion chamber housing 2 is a combustion chamber 21, and the inner chamber of the vaporization chamber housing 6 is a vaporization chamber 61.
  • the combustion chamber head 1 is inserted into the front end of the combustion chamber housing 2, and the vaporization chamber housing 6 is connected to the rear end of the combustion chamber housing 2.
  • the combustion chamber housing 2 is sealed with a metal seal 5 in the middle of the connection end of the vaporization chamber housing 6.
  • the combustion chamber liner 3 is placed on the inner peripheral wall of the combustion chamber casing 2, and a water partition 4 is formed between the outer peripheral wall and the inner peripheral wall of the combustion chamber casing 2.
  • a spiral cooling water passage is formed in the water compartment 4.
  • the inner peripheral wall of the combustor liner 3 is provided with water nozzles 31, 32, 33, 34, 35, and the water nozzles 31, 32, 33, 34, 35 are in communication with the water spacer 4.
  • the water nozzles 31, 32, 33, 34, 35 are distributed in five rows before and after the length of the lining, the first and third drainage nozzles 31, 33 are right-handed in the tangential direction of the inner liner, and the second and fourth drainage nozzles 32, 34 is left-handed in the tangential direction of the inner liner, and the fifth drain nozzle 35 is arranged in the radial direction.
  • the combustion chamber housing 2 and the outer peripheral wall surface of the connecting end of the vaporization chamber housing 6 are provided with a coupling flange 7, and the double-head stud 8 and the nut 9 are axially fixedly coupled.
  • the lens head 10 is embedded in the middle of the connecting end of the combustion chamber head 1 and the combustion chamber housing 2.
  • the outer peripheral wall is provided with a coupling flange 7, and the stud 8 and the nut 9 are axially fixedly coupled.
  • the front and rear sealing faces 51, 52 of the metal seal 5 are spherical, and the sealed faces of the combustor casing 2 and the vaporization chamber casing 6 are inner tapered faces.
  • a water return hole 53 is formed in the middle of the metal seal 5, and the water return hole 53 communicates with the water spacer 4, and a temperature sensor 54 (Fig. 2) is inserted into the metal seal 5.
  • the rear end of the combustion chamber lining 3 extends over the inner peripheral wall of the metal seal 5 and the front end of the vaporization chamber housing 6, and a water spacer 4 is also formed between the outer peripheral wall of the front end and the inner peripheral wall of the metal seal 5.
  • a threaded flange 55 extends rearwardly from the rear end of the metal seal 5
  • the inner peripheral wall of the threaded flange 55 is provided with an internal thread
  • the outer peripheral wall surface of the rear end of the combustion chamber lining 3 is provided with an external thread
  • the external thread is coupled with the internal thread on the inner peripheral wall of the threaded flange 55, and is pressed
  • Metal pad 36 (Fig. 1) is a static seal.
  • the front end of the combustion chamber lining 3 is freely disposed between the outer peripheral wall of the combustion chamber head 1 and the inner peripheral wall of the front end of the combustion chamber housing 2, and the inner peripheral wall and the outer peripheral wall of the combustion chamber head 1 are disposed between each other.
  • the 0" type seal 37 is sealed.
  • the combustion chamber head 1 is mainly composed of a head housing 11, an air nozzle 12, an oil nozzle, an oil nozzle 13, a lens pad 14, an outer nut 15, and a "0" type sealing ring 16.
  • the cyclone 17, the spark plug 18 and the water nozzle 19 are composed.
  • the spark plug 18 and the water nozzle 19 are inserted into the casing wall of the head casing 11, and the water nozzle 19 communicates with the water compartment 4.
  • the air nozzle 12 is sleeved outside the oil nozzle and the oil nozzle 13, and an air intake passage 121 is formed between the inner and outer wall surfaces.
  • the air nozzle 12 and the oil nozzle and the oil nozzle 13 are inserted into the head housing.
  • a plurality of inclined holes 111 are defined in the rear wall of the head casing 11, and a plurality of bypass inclined holes 112 are further disposed on the shell wall of the head casing 11 adjacent to the inclined hole 111.
  • the oil nozzle and the oil nozzle 13 have a plurality of holes 131 on the rear end wall of the oil nozzle 13 .
  • the head end of the inclined hole 111 on the shell wall of the head shell 11 communicates with the air intake passage 121, and the end is connected with the oil nozzle.
  • the inclined hole 131 of the oil nozzle 13 communicates with each other, and the oil nozzle, the end of the hole 131 on the oil nozzle 13 and the oil nozzle, the oil passage at the center of the oil nozzle 13 converge at the center of the front end of the head housing 11, the head housing
  • the leading end of the bypass inclined hole 112 on the 11 is in communication with the inclined hole 111 thereon, the end is disposed on the step end surface in the middle of the head housing 11, the rear end surface of the cyclone 17 and the bypass inclined hole on the head housing 11
  • the ends of 112 are adjacent.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

L'invention concerne un système de combustion haute température et haute pression de générateur d'agent caloporteur de composé sous-critique, comprenant une tête de chambre de combustion (1), un boîtier de chambre de combustion (2), une garniture de chambre de combustion (3) et un boîtier de chambre d'évaporation (6). La tête de chambre de combustion (1) est insérée dans l'extrémité avant du boîtier de chambre de combustion (2). Le boîtier de chambre d'évaporation (6) est relié à l'extrémité arrière du boîtier de chambre de combustion (2). La garniture de chambre de combustion (3) est montée sur la paroi interne du boîtier de chambre de combustion (2) de manière à former une couche isolante contre l'eau (4) intermédiaire. La paroi interne de la section arrière de la garniture de chambre de combustion (3) comporte des buses à eau. La partie intermédiaire de la liaison entre le boîtier de chambre de combustion (2) et le boîtier de la chambre d'évaporation (6) comprend un élément d'étanchéité métallique (5) intégré dont les surfaces isolantes avant et arrière sont sphériques. Les surfaces isolantes du boîtier de chambre de combustion (2) et du boîtier de chambre d'évaporation (6) sont évasées. L'extrémité arrière de la garniture de chambre de combustion (3) s'étend en direction de l'élément d'étanchéité métallique (5) et de la paroi interne avant du boîtier de chambre d'évaporation (6) pour former une couche isolante contre l'eau (4) intermédiaire. Le système résiste à des températures et à des pressions élevées et garantit une bonne étanchéité.
PCT/CN2006/003581 2005-12-23 2006-12-25 Systeme de combustion haute temperature et haute pression de generateur d'agent caloporteur de compose sous-critique WO2007071203A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200510022594.7 2005-12-23
CNB2005100225947A CN100343478C (zh) 2005-12-23 2005-12-23 亚临界复合热载体发生器的高温高压燃烧系统

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WO2007071203A1 true WO2007071203A1 (fr) 2007-06-28

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WO (1) WO2007071203A1 (fr)

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CN100560935C (zh) * 2006-12-18 2009-11-18 辽河石油勘探局 一种火驱采油油层热力点火方法
CN101825279A (zh) * 2010-04-06 2010-09-08 东南大学 油喷嘴管路注水式高压燃烧方法
CN102287801B (zh) * 2011-07-19 2013-04-24 刘殿玺 补燃式超临界压力气液两相燃料发生器燃烧室
CN102287854B (zh) * 2011-07-19 2013-06-12 关兵 补燃式超临界压力气液燃料发生器燃烧室冗余冷却装置
CN102384463B (zh) * 2011-07-19 2013-10-09 关兵 补燃式超临界压力注汽发生器燃烧室耐高压高温密封装置
CN102251764B (zh) * 2011-07-19 2014-04-30 关兵 补燃式超临界压力气液两相燃料发生器燃烧室预燃喷注器
CN102353040B (zh) * 2011-08-09 2013-03-27 江苏大江石油科技有限公司 一种超高压燃烧装置
CN102353052B (zh) * 2011-08-09 2013-03-27 江苏大江石油科技有限公司 复合热载体发生器高压燃烧配风结构
CN102353033B (zh) * 2011-08-09 2013-03-27 江苏大江石油科技有限公司 超临界复合热载体发生器的高温高压燃烧系统
CN102268984B (zh) * 2011-08-09 2013-09-04 江苏大江石油科技有限公司 一种复合热载体发生器的雾化装置
WO2017206281A1 (fr) * 2016-06-01 2017-12-07 中油锐思技术开发有限责任公司 Dispositif de refroidissement et de gazéification, générateur de caloporteur composite d'eaux usées et procédé de génération de caloporteur composite
CN105841129B (zh) * 2016-06-01 2018-05-18 中油锐思技术开发有限责任公司 废水复合热载体发生器及复合热载体产生方法
CN107461179B (zh) * 2017-09-22 2019-05-31 武汉三江航天远方科技有限公司 适用高粘油的复合热载体发生装置

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CN100343478C (zh) 2007-10-17

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