CN202660522U - High-dryness steam injection boiler for oil field - Google Patents
High-dryness steam injection boiler for oil field Download PDFInfo
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- CN202660522U CN202660522U CN 201220256447 CN201220256447U CN202660522U CN 202660522 U CN202660522 U CN 202660522U CN 201220256447 CN201220256447 CN 201220256447 CN 201220256447 U CN201220256447 U CN 201220256447U CN 202660522 U CN202660522 U CN 202660522U
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- convection section
- oil field
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Abstract
The utility model relates to a high-dryness steam injection boiler for an oil field and belongs to the technical field of steam injection boilers for the oil field. The high-dryness steam injection boiler comprises a double-feeding water pump, a heat exchanger, a steam-water separator and a boiler. The boiler comprises a transition smoke flue, a convection evaporation section, a secondary convection section, a primary convection section and a smoke tube which are fixedly connected together in sequence from bottom to top. A burner communicated with the transition smoke flue is fixedly connected on the outer side of the transition smoke flue, and a water outlet of the double-feeding water pump is fixedly connected with a shell side water inlet of the heat exchanger through a first pipeline. The high-dryness steam injection boiler is reasonable and compact in structure and convenient to use. By means of matching use of the double-feeding water pump, the heat exchanger, the burner, the transition smoke flue, the secondary convection section, the primary convection section and the smoke tube, the purposes of being large in single-well steam injection amount and high in dryness of the steam reaching the bottom of a well are achieved, and development process requirements of steam assisted gravity drainage (SAGD) are met.
Description
Technical field
The utility model relates to the uphole steam generator technical field, is a kind of high dryness oil field steam-filling boiler.
Background technology
In the super heavy oil recovery process of Feng Cheng oil field, adopt SAGD development technology technology, because its technique is special, require the steam quality high (more than 75%) in individual well steam injection amount large (about 50t/h), arrival shaft bottom, and the maximum steam injection amount of traditional injection boiler is 22.5t/h, although the steam quality of boiler export can reach 75% to 80%, but steam produces along the journey heat loss in the process that arrives the shaft bottom, the steam quality that makes actual arrival shaft bottom is less than 60% also, and therefore traditional injection boiler can not satisfy the requirement of SAGD development technology.
Summary of the invention
The utility model provides a kind of high dryness oil field steam-filling boiler, has overcome the deficiency of above-mentioned prior art, and it can effectively solve, and existing apparatus individual well steam injection amount is little and to arrive the steam quality in shaft bottom low and can not satisfy the problem that the SAGD development technology requires.
The technical solution of the utility model realizes by following measures: a kind of high dryness oil field steam-filling boiler comprises two feed pumps, heat exchanger, steam-water separator and boiler; Transition flue duct, convection current evaporator section, secondary convection section, convection section and chimney from below to up have been fixedly connected sequentially in boiler; Be fixedly connected with the burner that is connected with transition flue duct in the outside of transition flue duct; The delivery port of two feed pumps is fixed together by the shell side water inlet of the first pipeline and heat exchanger, the shell side delivery port of heat exchanger is fixed together by the water inlet of the second pipeline and a convection section, the water inlet of the delivery port of a convection section and secondary convection section is fixed together, the delivery port of secondary convection section is fixed together by the tube side water inlet of the 3rd pipeline and heat exchanger, the tube side delivery port of heat exchanger is fixed together by the water inlet of the 4th pipeline and burner, the delivery port of burner is fixed together by the water inlet of the 5th pipeline and convection current evaporator section, the delivery port of convection current evaporator section is fixed together by the import of the 6th pipeline and steam-water separator, outlet at steam-water separator is fixedly connected with steam injection pipeline, is installed with valve at steam injection pipeline.
The below is the further optimization and/or improvements to above-mentioned utility model technical scheme:
Above-mentionedly on the inlet tube of two feed pumps, can be installed with inlet filter.
Above-mentionedly on the first pipeline, can be installed with orifice flowmeter.
Above-mentioned outlet at steam-water separator can be fixedly connected with sampling line, is installed with valve at sampling line; Be fixedly connected with evacuated tube at steam injection pipeline, be installed with valve in evacuated tube; Inlet tube at two feed pumps is installed with probe tube, is installed with valve at probe tube; Between the first pipeline and the second pipeline, be fixedly connected with the 7th pipeline, be installed with valve at the 7th pipeline; Be installed with valve at the first pipeline.
Above-mentioned top at a convection section can be fixedly connected with suspension apparatus.
The above-mentioned outside at transition flue duct, convection current evaporator section, secondary convection section and a convection section can be installed with respectively platform.
The utility model reasonable and compact in structure, easy to use, by being used in conjunction with of two feed pumps, heat exchanger, burner, transition flue duct, convection current evaporator section, secondary convection section, convection section and chimney, realize the large high purpose of steam quality with arriving the shaft bottom of individual well steam injection amount, satisfied the requirement of SAGD development technology.
Description of drawings
Accompanying drawing 1 is the process flow diagram of the utility model most preferred embodiment.
Accompanying drawing 2 is the main TV structure schematic diagram of the utility model most preferred embodiment.
Accompanying drawing 3 is the plan structure schematic diagram of accompanying drawing 2.
Coding in the accompanying drawing is respectively: 1 is two feed pumps, and 2 is heat exchanger, and 3 is steam-water separator, 4 is transition flue duct, and 5 are the convection current evaporator section, and 6 is the secondary convection section, 7 is a convection section, and 8 is chimney, and 9 is burner, 10 is the first pipeline, and 11 is the second pipeline, and 12 is the 3rd pipeline, 13 is the 4th pipeline, and 14 is the 5th pipeline, and 15 is the 6th pipeline, 16 is steam injection pipeline, 17 is valve, and 18 is inlet filter, and 19 is orifice flowmeter, 20 is sampling line, 21 is evacuated tube, and 22 is probe tube, and 23 is the 7th pipeline, 24 is suspension apparatus, and 25 is platform.
The specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
In the utility model, for convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Shown in accompanying drawing 1,2,3, this high dryness oil field steam-filling boiler comprises two feed pumps 1, heat exchanger 2, steam-water separator 3 and boiler; Transition flue duct 4, convection current evaporator section 5, secondary convection section 6, convection section 7 and chimney 8 from below to up have been fixedly connected sequentially in boiler; Be fixedly connected with the burner 9 that is connected with transition flue duct 4 in the outside of transition flue duct 4; The delivery port of two feed pumps 1 is fixed together by the shell side water inlet of the first pipeline 10 and heat exchanger 2, the shell side delivery port of heat exchanger 2 is fixed together by the water inlet of the second pipeline 11 and a convection section 7, the water inlet of the delivery port of a convection section 7 and secondary convection section 6 is fixed together, the delivery port of secondary convection section 6 is fixed together by the tube side water inlet of the 3rd pipeline 12 and heat exchanger 2, the tube side delivery port of heat exchanger 2 is fixed together by the water inlet of the 4th pipeline 13 and burner 9, the delivery port of burner 9 is fixed together by the water inlet of the 5th pipeline 14 and convection current evaporator section 5, the delivery port of convection current evaporator section 5 is fixed together by the import of the 6th pipeline 15 and steam-water separator 3, outlet at steam-water separator 3 is fixedly connected with steam injection pipeline 16, is installed with valve 17 at steam injection pipeline 16.Like this, after preventing directly entering in convection section 7 without salt solution, dewfall pearl and formation nitrogen oxide on pipeloop, pipeloop is caused corrosion, requirement is higher than dew-point temperature (approximately 90 ℃) without the salt solution water temperature, therefore after carrying out heat exchange through heat exchanger 2 first without salt solution, temperature reaches 90 to 110 ℃, then enters in convection section 7.
Can according to actual needs, above-mentioned high dryness oil field steam-filling boiler be made further optimization and/or improvements:
Shown in accompanying drawing 1,2,3, be installed with inlet filter 18 at the inlet tube of two feed pumps 1.Like this, inlet filter 18 can filter out without the impurity in the salt solution.
Shown in accompanying drawing 1,2,3, be installed with orifice flowmeter 19 at the first pipeline 10.Like this, be convenient to the flow that orifice flowmeter 19 is regulated without salt solution.
Shown in accompanying drawing 1,2,3, be fixedly connected with sampling line 20 in the outlet of steam-water separator 3, be installed with valve 17 at sampling line 20; Be fixedly connected with evacuated tube 21 at steam injection pipeline 16, be installed with valve 17 in evacuated tube 21; Inlet tube at two feed pumps 1 is installed with probe tube 22, is installed with valve 17 at probe tube 22; Between the first pipeline 10 and the second pipeline 11, be fixedly connected with the 7th pipeline 23, be installed with valve 17 at the 7th pipeline 23; Be installed with valve 17 at the first pipeline 10.Like this, evacuated tube 21 is used in order to emergent evacuation.
As shown in Figure 2, be fixedly connected with suspension apparatus 24 on the top of a convection section 7.Like this, be convenient to lifting.
Shown in accompanying drawing 2,3, be installed with respectively platform 25 in the outside of transition flue duct 4, convection current evaporator section 5, secondary convection section 6 and a convection section 7.
Above technical characterictic has consisted of most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, satisfies the demand of different situations.
The use procedure of the utility model most preferred embodiment: during use, without salt solution after two feed pump 1 superchargings, enter by the first pipeline 10 that to carry out heat exchange to temperature in the shell side of heat exchanger 2 be 90 to 110 ℃, entering successively in convection section 7 and the secondary convection section 6 by the second pipeline 11 without salt solution after the heat exchange carried out heat convection with flue gas, making it reach mass dryness fraction is 40% wet saturated steam, 40% wet saturated steam enters by the 3rd pipeline 12 in the tube side of heat exchanger 2 and to carry out heat exchange without salt solution in the shell side with heat exchanger 2, heat exchange 40% wet saturated steam out enters by the 4th pipeline 13 that to conduct heat in the burner 9 to mass dryness fraction be 80% wet saturated steam from the tube side of heat exchanger 2, then enter in the convection current evaporator section 5 by the 5th pipeline 14 and carry out heat convection with flue gas, make the steam (vapor) outlet mass dryness fraction reach 95%, through the 6th pipeline 15, steam-water separator 3 and steam injection pipeline 16 are injected into the shaft bottom.
Claims (10)
1. a high dryness oil field steam-filling boiler is characterized in that comprising two feed pumps, heat exchanger, steam-water separator and boiler; Transition flue duct, convection current evaporator section, secondary convection section, convection section and chimney from below to up have been fixedly connected sequentially in boiler; Be fixedly connected with the burner that is connected with transition flue duct in the outside of transition flue duct; The delivery port of two feed pumps is fixed together by the shell side water inlet of the first pipeline and heat exchanger, the shell side delivery port of heat exchanger is fixed together by the water inlet of the second pipeline and a convection section, the water inlet of the delivery port of a convection section and secondary convection section is fixed together, the delivery port of secondary convection section is fixed together by the tube side water inlet of the 3rd pipeline and heat exchanger, the tube side delivery port of heat exchanger is fixed together by the water inlet of the 4th pipeline and burner, the delivery port of burner is fixed together by the water inlet of the 5th pipeline and convection current evaporator section, the delivery port of convection current evaporator section is fixed together by the import of the 6th pipeline and steam-water separator, outlet at steam-water separator is fixedly connected with steam injection pipeline, is installed with valve at steam injection pipeline.
2. high dryness oil field steam-filling boiler according to claim 1 is characterized in that being installed with inlet filter on the inlet tube of two feed pumps.
3. high dryness oil field steam-filling boiler according to claim 1 and 2 is characterized in that being installed with orifice flowmeter on the first pipeline.
4. high dryness oil field steam-filling boiler according to claim 1 and 2 is characterized in that the outlet of steam-water separator is fixedly connected with sampling line, is installed with valve at sampling line; Be fixedly connected with evacuated tube at steam injection pipeline, be installed with valve in evacuated tube; Inlet tube at two feed pumps is installed with probe tube, is installed with valve at probe tube; Between the first pipeline and the second pipeline, be fixedly connected with the 7th pipeline, be installed with valve at the 7th pipeline; Be installed with valve at the first pipeline.
5. high dryness oil field steam-filling boiler according to claim 3 is characterized in that the outlet of steam-water separator is fixedly connected with sampling line, is installed with valve at sampling line; Be fixedly connected with evacuated tube at steam injection pipeline, be installed with valve in evacuated tube; Inlet tube at two feed pumps is installed with probe tube, is installed with valve at probe tube; Between the first pipeline and the second pipeline, be fixedly connected with the 7th pipeline, be installed with valve at the 7th pipeline; Be installed with valve at the first pipeline.
6. high dryness oil field steam-filling boiler according to claim 1 and 2 is characterized in that the top of a convection section is fixedly connected with suspension apparatus.
7. high dryness oil field steam-filling boiler according to claim 3 is characterized in that the top of a convection section is fixedly connected with suspension apparatus.
8. high dryness oil field steam-filling boiler according to claim 4 is characterized in that the top of a convection section is fixedly connected with suspension apparatus.
9. high dryness oil field steam-filling boiler according to claim 5 is characterized in that the top of a convection section is fixedly connected with suspension apparatus.
10. high dryness oil field steam-filling boiler according to claim 9 is characterized in that the outside of transition flue duct, convection current evaporator section, secondary convection section and a convection section is installed with respectively platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256447 CN202660522U (en) | 2012-06-01 | 2012-06-01 | High-dryness steam injection boiler for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220256447 CN202660522U (en) | 2012-06-01 | 2012-06-01 | High-dryness steam injection boiler for oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202660522U true CN202660522U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220256447 Expired - Lifetime CN202660522U (en) | 2012-06-01 | 2012-06-01 | High-dryness steam injection boiler for oil field |
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| Country | Link |
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| CN (1) | CN202660522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610011A (en) * | 2017-01-05 | 2017-05-03 | 中国石油天然气集团公司 | Demineralizer and steam demineralizer of oil field superheated steam injection boiler |
-
2012
- 2012-06-01 CN CN 201220256447 patent/CN202660522U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610011A (en) * | 2017-01-05 | 2017-05-03 | 中国石油天然气集团公司 | Demineralizer and steam demineralizer of oil field 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 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
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| CX01 | Expiry of patent term |