CN1064338A - The method of oil-field flooding deoxidation - Google Patents
The method of oil-field flooding deoxidation Download PDFInfo
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- CN1064338A CN1064338A CN 92102061 CN92102061A CN1064338A CN 1064338 A CN1064338 A CN 1064338A CN 92102061 CN92102061 CN 92102061 CN 92102061 A CN92102061 A CN 92102061A CN 1064338 A CN1064338 A CN 1064338A
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- gas
- revolving bed
- oil
- oxygen
- deoxidation
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Abstract
The present invention is a kind of method of utilizing revolving bed to carry out the oil-field flooding deoxidation.This method feeds the on-the-spot oxygen-free gas in oil field (natural gas) air inlet port of revolving bed, oxygenated water is introduced the liquid-inlet of revolving bed, gas-liquid two-phase is after bed carries out mass transfer, and gas is discharged from exhaust opening and sent former pipeline back to, and it is standby or directly inject underground that deoxygenated water is sent into storage tank.The present invention once reaches the deoxidation index, and oxygen content is below 0.08ppm.
Description
The present invention relates to a kind of method of utilizing revolving bed to carry out the oil-field flooding deoxidation.
During the oil-field flooding oil extraction, the water of injection must be oxygen removal to 0.05～below the 0.1ppm, because the treating capacity of water is very big, so be unusual heavy task to common equipment.Present Oilfield using high tower with good conditionsi spray vacuum deaeration technology is a motive force with the difference of partial pressure of gaseous oxygen in the equilibrium pressure of water oxygen and the tower, separates dissolved oxygen in the bleed by molecular diffusion.Not only investment of occupation of land is big for the used tall and big tower of this method, and because vacuum deaeration efficient is low, does not usually reach the deoxidation index of requirement.Therefore need add the further deoxidation of chemical deoxidier to the water that comes out from vacuum column again, the deoxidation station of water filling 600 ten thousand steres in annual oil field need be consumed and be worth 80～1,000,000 deoxidier.Especially on marine drilling platform, operate, be subjected to the restriction of condition can not adopt said method.
The rotating bed super gravity field device can be strengthened transmission and course of reaction, and some unapproachable purposes on routine techniques are achieved.
According to the EP0023745 A3 patent that Britain Imperial Chemical Industries (ICI) propose, mention revolving bed and can be used for separation processes such as absorption, parsing, distillation, but do not disclose plant-scale application technology.Particularly to the not concrete report of this large-scale commercial Application technology of oil-field flooding deoxidation, reason is: revolving bed technology or newer technology, and the internal operation mechanism complexity, research for application and development is still constantly being carried out.Oil-field flooding deoxidation commercial scale is big in addition, need take corresponding technical measures according to different geology operating modes.So obtaining the practical scheme of industry need further investigate.
Purpose of the present invention: utilize the rotating bed super gravity field device, in conjunction with the oil field field working conditions, make oxygen-free gas and inject water mass transfer exchange under the situation of bed high turbulence, separate the dissolved oxygen in the bleed, thereby provide a kind of occupation of land little, the oxygen removal efficiency height, the oil-field flooding deoxidation new method that applicability is wide.
Main points of the present invention: with the on-the-spot oxygen-free gas (as: natural gas) in oil field, by the revolving bed air inlet port, oxygenated water is introduced the liquid-inlet of revolving bed, carry out mass transfer under the situation of gas-liquid two-phase high turbulence in the bed porous aggregate, dissolved oxygen in the water is resolved to come out, taken away by gas, gas is discharged from exhaust opening and is sent back to the former pipeline or make other purposes.Deoxygenated water is sent into storage tank or is directly injected underground.
Above-mentioned gas is according to the operating mode different choice in oil field, the preferably natural gas in oil field.
In order to allow the gas of discharging return former pipeline smoothly, must make gas pressure keep identical or be slightly larger than loine pressure with pressure in the pipeline from revolving bed.Therefore, before gas enters revolving bed or discharge after the exhaust opening employing measure of boosting, as: fan aspirate or select the revolving bed that carries aspirator for use.
Above-mentioned injection water can be surface water, also can be seawater.
Open in detail below in conjunction with embodiment to the present invention.
Accompanying drawing 1 is a process flow diagram of the present invention.
Embodiment 1: as shown in Figure 1:
The on-the-spot gas pipeline 1 in oil field is connected with revolving bed air inlet port 2, enters revolving bed after natural gas via blower fan 6 boosts.Gas flow is 250～300m
3/ hr, the liquid-inlet 3 of revolving bed is connected discharge 50m with surface water
3/ hr, water oxygen level is 7-8ppm, and revolving bed rotor 4 carries out mass transfer with the rotating speed rotation of 1200rpm under the situation of gas-liquid two-phase high turbulence in the porous aggregate 8 of bed, natural gas parses the oxygen in the water rapidly, and gets back to former pipeline from exhaust opening 5 discharges.After deoxygenated water was discharged from exhaust opening 7, it was standby or directly inject underground to send into storage tank.This moment, the oxygen content from the liquid that leakage fluid dram is discharged was below the 0.08ppm.
Embodiment 2:
Adopt the nitrogen deoxidation.
Nitrogen in the nitrogen storage tank is with 300m
3The flow of/hr feeds the air inlet port of revolving bed, and flow is 40m
3The surface water of/hr draws the liquid-inlet of revolving bed, and water oxygen gas content is 8ppm.Nitrogen and water carry out transmittance process in bed, and contain oxygen nitrogen and discharge after cycle of treatment is used from exhaust opening, or emptying.The oxygen content that go out saliva this moment is 0.05ppm.
Effect of the present invention:
1, the present invention utilizes revolving bed to replace huge tower, and saves vacuum system and deoxidier. Once reach at normal temperatures the deoxidation index, not only save a large amount of equipment investments and energy consumption, and greatly improve deoxidation efficient. The correction data of the present invention and old technology deoxidation index below, further to illustrate effect.
Old technology:
Support tower height liquid measure vacuum import oxygen content outlet oxygen content
m m m
3/hr mmHg ppm ppm
19 9 70 720 7-8 0.5-0.8
This method: (employing natural gas)
Discharge natural gas temperature rotating speed import oxygen content outlet oxygen content
m
3/hr m
3/hr ℃ rpm ppm ppm
10 40 16 1800 8 0.06
50 250 16 1200 8 0.07
2, the present invention adopts the on-the-spot oxygen-free gas that is easy to get to carry out the water filling deoxidation according to the operating mode at scene, oil field, and is economical and practical.The present invention not only can transform old deoxidization technique, is not subjected to condition restriction again, makes most oil fields adopt deoxy technology easily, and the high and stable yields that guarantee the oil field are had bigger economic results in society.
Claims (4)
1, a kind of new method of oil-field flooding deoxidation, it is characterized in that: the air inlet port that oxygen-free gas is fed revolving bed, oxygenated water is introduced the liquid-inlet of revolving bed, oxygen-containing gas after transmitting exchange is discharged from exhaust opening and is sent former pipeline back to, and it is standby or directly inject underground that the deoxygenated water that leakage fluid dram is discharged is sent into storage tank.
2, method according to claim 1 is characterized in that: oxygen-free gas is the natural gas at scene, oil field.
3, method according to claim 1 is characterized in that: the gas pressure of sending pipeline back to keeps consistent with pressure in the pipeline or greater than the pressure in the pipeline.
4, method according to claim 1 is characterized in that: the pressure in gas pressure and the pipeline is consistent to be before gas enters revolving bed or to discharge after the revolving bed, is boosted by blower fan and causes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102061 CN1023029C (en) | 1992-04-03 | 1992-04-03 | Method for deoxidizing water to be filled in oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92102061 CN1023029C (en) | 1992-04-03 | 1992-04-03 | Method for deoxidizing water to be filled in oil field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1064338A true CN1064338A (en) | 1992-09-09 |
| CN1023029C CN1023029C (en) | 1993-12-08 |
Family
ID=4939450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92102061 Expired - Fee Related CN1023029C (en) | 1992-04-03 | 1992-04-03 | Method for deoxidizing water to be filled in oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1023029C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417436C (en) * | 2005-07-14 | 2008-09-10 | 中国石油化工股份有限公司 | Catalytic selective hydrogenation |
| CN102247706A (en) * | 2011-05-19 | 2011-11-23 | 北京化工大学 | Rotating packed bed device with function of regulating and controlling axial liquid distribution |
| US8722918B2 (en) | 2010-04-15 | 2014-05-13 | China Petroleum & Chemical Corporation | Process for producing Cl-C4 alkyl nitrite |
| CN104623929A (en) * | 2013-11-13 | 2015-05-20 | 中国石油天然气股份有限公司 | Method for removing dissolved oxygen contained in alkali liquor |
| CN107661643A (en) * | 2016-07-28 | 2018-02-06 | 北京化工大学 | A kind of system and device of liquid deoxidation and application |
| CN110857406A (en) * | 2018-08-23 | 2020-03-03 | 中国石油天然气股份有限公司 | Natural gas flow primary standard device is with anticorrosive system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038578C (en) * | 1995-05-26 | 1998-06-03 | 北京化工大学 | Ultra-fine calcium carbonate preparation method |
-
1992
- 1992-04-03 CN CN 92102061 patent/CN1023029C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417436C (en) * | 2005-07-14 | 2008-09-10 | 中国石油化工股份有限公司 | Catalytic selective hydrogenation |
| US8722918B2 (en) | 2010-04-15 | 2014-05-13 | China Petroleum & Chemical Corporation | Process for producing Cl-C4 alkyl nitrite |
| CN102247706A (en) * | 2011-05-19 | 2011-11-23 | 北京化工大学 | Rotating packed bed device with function of regulating and controlling axial liquid distribution |
| CN102247706B (en) * | 2011-05-19 | 2013-10-16 | 北京化工大学 | Rotating packed bed device with function of regulating and controlling axial liquid distribution |
| CN104623929A (en) * | 2013-11-13 | 2015-05-20 | 中国石油天然气股份有限公司 | Method for removing dissolved oxygen contained in alkali liquor |
| CN104623929B (en) * | 2013-11-13 | 2016-09-07 | 中国石油天然气股份有限公司 | A kind of remove the method for dissolved oxygen in alkali lye |
| CN107661643A (en) * | 2016-07-28 | 2018-02-06 | 北京化工大学 | A kind of system and device of liquid deoxidation and application |
| CN110857406A (en) * | 2018-08-23 | 2020-03-03 | 中国石油天然气股份有限公司 | Natural gas flow primary standard device is with anticorrosive system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1023029C (en) | 1993-12-08 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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Owner name: BEIJING ZHONGCHAO HAIQI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING CHEMICAL ENGINEERING UNIV. Effective date: 20030131 |
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Owner name: BEIJING CHEMICAL ENGINEERING UNIV. Free format text: FORMER NAME OR ADDRESS: BEIJING CHEMICAL ENGINEERING COLLEGE |
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| CP01 | Change in the name or title of a patent holder |
Patentee after: BEIJING University OF CHEMICAL TECHNOLOGY Patentee before: Beijing Chemical Engineering College |
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Effective date of registration: 20030131 Address after: 100029, Beijing, Chaoyang District, No. 17 East Third Ring Road, Guizhou building, Kei business center, room 808 Patentee after: BEIJING ZHONGCHAO HAIQI TECHNOLOGY Co.,Ltd. Address before: 100013, No. 15 East Third Ring Road, Chaoyang District, Beijing Patentee before: Beijing University of Chemical Technology |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19931208 |