CN204511411U - Carbon dioxide heating deep-buried device - Google Patents
Carbon dioxide heating deep-buried device Download PDFInfo
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- CN204511411U CN204511411U CN201520177752.5U CN201520177752U CN204511411U CN 204511411 U CN204511411 U CN 204511411U CN 201520177752 U CN201520177752 U CN 201520177752U CN 204511411 U CN204511411 U CN 204511411U
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- carbon dioxide
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Abstract
The utility model discloses carbon dioxide heating deep-buried device, it comprises booster pump (1), heat exchanger (2), boiler (3) and heat-exchanger pump (4), heat exchanger (2) is established carbon dioxide feed tube (5), carbon dioxide drain pipe (6), water inlet pipe (7) and outlet pipe (8), booster pump (1) connects heat exchanger (2) through carbon dioxide feed tube (5), heat exchanger (2) is connected heat-exchanger pump (4) through water inlet pipe (7) with outlet pipe (8), and heat-exchanger pump (4) connects boiler (3).The utility model structure is simple, and with low cost, stable, the carbon dioxide liquid solving low temperature directly enters the problem of oil extraction pipeline and then bursting by freezing oil extraction pipeline, makes the work of carbon dioxide oil recovery pressure injection equipment safer and more effective.
Description
Technical field
The utility model relates to extracting device of oil, is specifically related to carbon dioxide heating deep-buried device.
Background technology
Carbon dioxide flooding oil tech, be exactly in carbon dioxide injection oil reservoir to improve tar productivity.International Energy Agency's assessment is thought, the resource that the whole world is applicable to carbon dioxide drive exploitation is about 3,000 hundred million ~ 6,000 hundred million barrels.Because carbon dioxide is a kind of gas that solubility is all very high in You Heshui, when it is dissolved in crude oil in a large number, crude oil volume expansion, viscosity decline can be made, the interfacial tension between profit can also be reduced.Compared with other technology of reservoir sweep, carbon dioxide drive has the advantages such as the scope of application is large, displacement of reservoir oil cost is low, tar productivity raising is remarkable.This technology can not only meet oil field development demand, and what can also solve carbon dioxide seals problem up for safekeeping, environment protection.
Carbon dioxide drive is a ripe oil recovery technique.According to incompletely statistics, the carbon dioxide drive project that the current whole world is being implemented has nearly 80.The U.S. is that carbon dioxide drive project carries out maximum countries, and the annual amount of carbon dioxide injecting oil reservoir is about 2,000 ten thousand ~ 3,000 ten thousand tons, wherein 3,000,000 tons of waste gas from coal gasification plant and chemical fertilizer factory.
According to " on Chinese Continental, developed field improves recovery ratio second time Potential Evaluation and Study of developing strategy " result, carbon dioxide has huge application potential in China's oil exploitation.The existing explored 63.2 hundred million tons of low-permeability oil deposit crude oil reserves of China, especially wherein about 50% reserves not yet employed, use carbon dioxide flooding to have more obvious technical advantage than water drive.Can predict, the continuous expansion with range of application is improved in the development along with technology, and carbon dioxide improves Development Response of Oilfield by becoming China, improves the valuable source of oil recovery factor.
By the oil reservoir of carbon dioxide injection energy decline, improve oil gas field recovery ratio, become the common recognition of world many countries oil exploration industry.Namely carbon dioxide purity can be used for improving recovery ratio more than 90%.After carbon dioxide is water-soluble in stratum, make the viscosity of water increase by 20% ~ 30%, transfer ability improves 2 ~ 3 times; After carbon dioxide is dissolved in oil, make crude oil volume expansion, viscosity reduces by 30% ~ 80%, and oil water interfacial tension reduces, and is conducive to improving rate of oil production, displacement efficiency and collection residual oil.Carbon dioxide drive generally improves recovery ratio 7% ~ 15%, extends 15 ~ 20 years oil well production life-spans.Carbon dioxide source can from industrial facility as reclaimed the emissions such as power plant, chemical fertilizer factory, cement plant, chemical plant, oil refinery, gas plant.After carbon dioxide liquid is injected the oil extraction pipeline leading to the end, ground by domestic used carbon dioxide oil recovery pressure injection equipment at present, because the temperature of carbon dioxide liquid is at subzero about 20 degree, after carbon dioxide liquid enters oil extraction pipeline, the temperature of oil extraction pipeline can be down to zero following very soon, the external surface of oil extraction pipeline is understood frosting and then forms icicle, the external surface of oil extraction pipeline forms icicle for a long time, very possible bursting by freezing oil extraction pipeline.Therefore people wish to obtain carbon dioxide heating deep-buried device, avoid the low temperature because of carbon dioxide liquid to cause oil extraction pipeline bursting by freezing.
Summary of the invention
The purpose of this utility model is: provide a kind of carbon dioxide heating deep-buried device being applied to carbon dioxide oil recovery pressure injection equipment, solve the problem that existing carbon dioxide oil recovery pressure injection equipment injects the low-temperature carbon dioxide liquid bursting by freezing oil extraction pipeline of oil extraction pipeline.
Technical solution of the present utility model is: this carbon dioxide heating deep-buried device comprises booster pump, heat exchanger, boiler and heat-exchanger pump, heat exchanger is established carbon dioxide feed tube, carbon dioxide drain pipe, water inlet pipe and outlet pipe, booster pump connects heat exchanger through carbon dioxide feed tube, heat exchanger is connected heat-exchanger pump through water inlet pipe with outlet pipe, and heat-exchanger pump connects boiler.
During installation, carbon dioxide drain pipe is communicated with carbon dioxide oil recovery pressure injection equipment; During work, carbon dioxide liquid is by heat exchanger after booster pump pressurization, and the hot water in boiler is extracted out by heat-exchanger pump, and hot water is through heat exchanger circulating-heating carbon dioxide liquid, the temperature of carbon dioxide liquid is heated between zero to ten degree by subzero 20 degree, enters oil extraction pipeline afterwards.
The beneficial effects of the utility model are: structure is simple, and with low cost, stable, the carbon dioxide liquid solving low temperature directly enters the problem of oil extraction pipeline and then bursting by freezing oil extraction pipeline, makes the work of carbon dioxide oil recovery pressure injection equipment safer and more effective.
Accompanying drawing explanation
Fig. 1 is carbon dioxide heating deep-buried device schematic diagram.
Fig. 2 is heat exchanger schematic diagram.
Fig. 3 is the schematic top plan view of Fig. 2.
In figure: 1 booster pump, 2 heat exchangers, 3 boilers, 4 heat-exchanger pumps, 5 carbon dioxide feed tubes, 6 carbon dioxide drain pipes, 7 water inlet pipes, 8 outlet pipes.
Detailed description of the invention
As Figure 1-3, this carbon dioxide heating deep-buried device comprises booster pump 1, heat exchanger 2, boiler 3 and heat-exchanger pump 4, heat exchanger 2 is established carbon dioxide feed tube 5, carbon dioxide drain pipe 6, water inlet pipe 7 and outlet pipe 8, booster pump 1 connects heat exchanger 2 through carbon dioxide feed tube 5, heat exchanger 2 is connected heat-exchanger pump 4 through water inlet pipe 7 with outlet pipe 8, and heat-exchanger pump 4 connects boiler 3.
During installation, carbon dioxide drain pipe 6 is communicated with carbon dioxide oil recovery pressure injection equipment; During work, carbon dioxide liquid passes through heat exchanger 2 after the pressurization of supercharging 1 pump, hot water in boiler 3 is extracted out by heat-exchanger pump 4, hot water is through heat exchanger 2 circulating-heating carbon dioxide liquid, the temperature of carbon dioxide liquid is heated between zero to ten degree by subzero 20 degree, enters oil extraction pipeline afterwards.
Claims (1)
1. carbon dioxide heating deep-buried device, it is characterized in that: it comprises booster pump (1), heat exchanger (2), boiler (3) and heat-exchanger pump (4), heat exchanger (2) is established carbon dioxide feed tube (5), carbon dioxide drain pipe (6), water inlet pipe (7) and outlet pipe (8), booster pump (1) connects heat exchanger (2) through carbon dioxide feed tube (5), heat exchanger (2) is connected heat-exchanger pump (4) through water inlet pipe (7) with outlet pipe (8), and heat-exchanger pump (4) connects boiler (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177752.5U CN204511411U (en) | 2015-03-27 | 2015-03-27 | Carbon dioxide heating deep-buried device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520177752.5U CN204511411U (en) | 2015-03-27 | 2015-03-27 | Carbon dioxide heating deep-buried device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511411U true CN204511411U (en) | 2015-07-29 |
Family
ID=53709404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520177752.5U Expired - Fee Related CN204511411U (en) | 2015-03-27 | 2015-03-27 | Carbon dioxide heating deep-buried device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511411U (en) |
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2015
- 2015-03-27 CN CN201520177752.5U patent/CN204511411U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 |