CN103101890A - Nitrogen production system and nitrogen production process based on membrane separation principle - Google Patents
Nitrogen production system and nitrogen production process based on membrane separation principle Download PDFInfo
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- CN103101890A CN103101890A CN 201110385157 CN201110385157A CN103101890A CN 103101890 A CN103101890 A CN 103101890A CN 201110385157 CN201110385157 CN 201110385157 CN 201110385157 A CN201110385157 A CN 201110385157A CN 103101890 A CN103101890 A CN 103101890A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 83
- 239000012528 membrane Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title abstract description 21
- 238000000926 separation method Methods 0.000 title abstract description 7
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 25
- 230000003139 buffering effect Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 51
- 239000007789 gas Substances 0.000 abstract description 17
- 230000008901 benefit Effects 0.000 abstract description 12
- 238000011161 development Methods 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 20
- 239000007924 injection Substances 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 16
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000010010 raising Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000218691 Cupressaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a nitrogen production system based on a membrane separation principle. The nitrogen production system based on a membrane separation principle mainly comprises an air compressor (1), an aftercooler (2), an air buffer tank (3), a filter bank (4), a heater (5), a membrane pipe bank (6) and a nitrogen gas buffer tank (7) which are sequentially communicated, wherein the air compressor (1) is connected with an air source; and the nitrogen gas buffer tank (7) is connected with a user terminal. The invention also discloses a nitrogen production process based on the nitrogen production system. According to the invention, the equipment manufacturing cost is lowered, the energy consumption is reduced, the more extensive use of a membrane nitrogen production device is promoted, and a foundation of producing advanced production equipment is provided for the popularization of nitrogen gas well drilling in China, the more advanced and scientific development of the oil and gas extraction process and the achievement of higher economic benefits and social benefits.
Description
Technical field
The present invention relates to a kind of nitrogen gas generating system based on the membrane sepn principle and nitrogen producing craft thereof.
Background technology
Gas drilling (according to the difference of using circulatory mediator) generally can be divided into: the different sortses such as air drilling, nitrogen injection drilling, gas drilled hole, tail gas drilling well wherein have the incomparable advantage of other gas drilling form with air drilling with the cheapness of air, unlimitedness, being easy to get property especially.But to air drilling, owing to containing a large amount of ignition dope oxygen in air, when using air drilling near reservoir the time, be easy to reservoir near inflammable gas mixes and is lighted and then produce burning or explode.
Gas drilling is exactly the under-balanced drilling technology that adopts take gas as main circulating fluid.The U.S. of the thirties in 20th century air drilling that begins one's study.But due to the reasons such as state of the art, equipment and understanding at that time, do not obtain mass-producing and use.Until the sixties in 20th century, constantly perfect along with the appearance of air drilling motor etc. and various device, air drilling is subject to people's attention again.
Nitrogen injection drilling is a kind of as gas drilling, because it not only has the superiority of air drilling; Have cheapness, the unlimitedness of drilling medium and have and meet the security that inflammable gas do not burn or explode and prevent that burn into from extending bit life, improving brill and reach the success ratio of well depth, greatly reduce the advantage such as drilling cost, and become one of problem that oil and gas development investigators in recent years pay special attention to.And the equipment of making nitrogen is as producing drilling medium in nitrogen injection drilling---the key equipment of nitrogen also just more and more is subject to people's attention.
In recent years, along with the development of filming technology, film separation and nitrogen-making becomes a kind of novel science method for preparing nitrogen of producing nitrogen.The nitrogen studies of membrane sepn legal system and development have promoted the development of membrane separation nitrogen generating device, have injected new vitality to nitrogen injection drilling, have greatly accelerated applying of nitrogen injection drilling.
Increasingly mature along with the air drilling technology, supporting the use in other words as it, raising of the nitrogen injection drilling technology of necessary supplementary means also more and more is subject to people's attention.Compare with air drilling, the key of nitrogen injection drilling technology is nitrogen production equipment.The raising of the property indices of nitrogen production equipment can make the nitrogen injection drilling technology more be widely used; thereby effectively solve the pernicious leakage in the burning of issuable down-hole and blast and wellbore construction in reservoir or some special operation condition situation; pressure differential sticking, drilling speed wait a technical difficult problem slowly; can be when creeping into hydrocarbon zone well section; accomplish " zero pollutes "; for timely protection with find low pressure, low saturated, low permeability oil reservoir (hydrocarbon-bearing pool); have unusual effect to improving oil well per-well production and recovery ratio, and can improve drilling speed 5-10 doubly.Therefore, by current existing apparatus is analyzed and researched, find out deficiency and the shortcoming of its existence, thereby make improvements, with reach make its topology layout rationally, reduce costs, the technical indicator such as working service is convenient, energy consumption is low, the pressure-losses is little, just seem particularly important and urgent.So not only reduced the device fabrication cost, reduce energy expenditure, promote the broader applications of film nitrogen-making device, and be the universal of China's nitrogen injection drilling, oil-gas mining technique is more advanced, more scientific, obtain the basis that higher economic benefit and social benefit provide the production advanced production equipment.
Nitrogen injection drilling is a kind of of under-balanced drilling technology, and its circulating fluid is drying nitrogen.It is in the twentieth century middle and later periods that nitrogen injection drilling uses first.The nitrogen injection drilling technical study of China starts from the eighties of last century the eighties, although make certain gains, fails to solve because of the equipment of making nitrogen, makes the achievement that works out be difficult to be converted into productivity, is not in time used.The eighties of last century the nineties, along with the development of nitrogen producing craft and succeeding in developing of the equipment of making nitrogen, the research of nitrogen injection drilling technology is extensively paid attention to again with application.At first be that try out successfully the Liaohe Oil Field, progressively be generalized to the oil fields such as triumph, Jiang-Han Area, but also be not used in under-balanced drilling at that time.Until in December, 2000, Shengli Oil Field drilling well four advanced drill crews of company one adopt the nitrogen injection drilling technology to creep into Wuding, Yunnan county's cloud ginseng scientific research one well of domestic drilling probing first, obtain once success, have opened the beginning.After this, the nitrogen injection drilling technology succeeds respectively in oil fields such as telling Kazakhstan, Xinjiang, Sichuan, the Liaohe River, Jiang-Han Area.2004 to 2005, telling oil field, Kazakhstan under-balanced drilling technology is developed rapidly, successively 8 mouthfuls of wells such as 14 wells, China Petrochemical Industry's Erdos D12-1 well, red 2-15 well, red 2-17 well, red 2-4 well adopt under-balanced drilling technology in the gallery, wherein have 5 mouthfuls of wells to carry out the drilling well of overall process under-balance pure nitrogen gas at Reservoir Section.Wherein red 2-15 well is the domestic overall process under-balance pure nitrogen gas drilling well of carrying out first, obtains unusual effect, and the high produced hydrocarbon fluid of acquisition is 10-15 times of conventional drilling.Confirmed that this new technology has good economic benefit and wide popularizing application prospect in In Oil Field Exploration And Development.
Although some oil-gas fields of current China have adopted nitrogen injection drilling that Oil/gas Well is exploited, and obtain some achievements, but with abroad compare, the gap of China's nitrogen injection drilling is still larger at present, this not only is reflected on the supporting and Development Level of technical equipment, also be reflected in processing method and fundamental research, and not yet starting on the Alternative complex art.
Current generation, along with the technology development at home and abroad of making nitrogen, especially film nitrogen technology processed, show one's talent with its unique advantage, becomes the main technique methods of nitrogen preparation in nitrogen injection drilling, and promoted the development of nitrogen preparation equipment.At first nitrogen preparation equipment manufactured in states such as America ﹠ Canadas, and wherein more famous have prune card, a cypress Mayes ﹠ Company, and these two membrane sepn nitrogen production unit companies enter China in the mid-90 in 20th century, have all had now many branch officies.A lot of oil fields of China show with the equipment of making nitrogen all from these companies.China is current also has some companies can produce membrane separation nitrogen generating device, but oil/gas drilling does not also have manufacturer production with the membrane separation nitrogen generating device Present Domestic.But all there are the mentality of designing that is confined to satisfy service requirements foreign equipment or home equipment current generation, all to be improved and raisings of the problems such as reasonableness of the accessibility of the efficient of the science of internal structure, equipment, power consumption control, working service, some parts like this, especially online the detection or a blank of this series products.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of nitrogen gas generating system based on the membrane sepn principle is provided, should not only reduce the device fabrication cost based on the nitrogen gas generating system of membrane sepn principle, reduce energy expenditure, promote the broader applications of film nitrogen-making device, and be the universal of China's nitrogen injection drilling, oil-gas mining technique is more advanced, more scientific, obtain higher economic benefit and social benefit provides the basis that produces advanced production equipment.
Another object of the present invention has been to provide a kind of nitrogen producing craft based on above-mentioned nitrogen gas generating system.
Purpose of the present invention is achieved through the following technical solutions: based on the nitrogen gas generating system of membrane sepn principle, mainly fill with and consist of by the air compressor that is connected successively, aftercooler, air cushioning filling, filter set, well heater, film pipe group, nitrogen buffering, described air compressor is connected with air source, and the nitrogen buffering is filled with and is connected with user terminal.
The inlet mouth of described aftercooler is provided with temperature detecting controller and pneumatics protective valve.
Described filter set is formed by 4 combination of filters.
Described well heater is electric heater.
Be provided with pneumatic ball valve between described well heater and film pipe group.
Described film pipe group and nitrogen buffering are disposed with check valve, control of purity valve, back pressure valve, nitrogen flow meter, blow-off valve between filling with.
The outlet that described nitrogen buffering is filled with is provided with manual ball valve and Y-tube.
Nitrogen producing craft based on above-mentioned nitrogen gas generating system is characterized in that, comprises the following steps:
(a) after extraneous air compresses by air compressor, enter aftercooler;
(b) aftercooler is lowered the temperature to the pressurized air that enters, and the pressurized air that flows out after the aftercooler cooling enters air cushioning and fills with;
(c) pressurized air is filled with by air cushioning after buffering and is entered filter set, and after filtering through the filter group, uncontaminated air enters well heater;
(d) enter film pipe group after uncontaminated air is heated in well heater;
(e) air that will process premenstruum of film pipe group separates, and obtains purity and reaches nitrogen more than 95%;
(f) gained nitrogen enters the filling of nitrogen buffering through check valve, nitrogen flow meter, blow-off valve, and stable nitrogen gas stream is delivered to user terminal by its air outlet.
In described step (a), it is 2.4MPa that extraneous air is compressed to pressure through air compressor.
In described step (d), uncontaminated air is heated to 50 ℃ in well heater.
In sum, the invention has the beneficial effects as follows: not only reduced the device fabrication cost, reduce energy expenditure, promote the broader applications of film nitrogen-making device, and be the universal of China's nitrogen injection drilling, oil-gas mining technique is more advanced, more scientific, obtain higher economic benefit and social benefit provides the basis that produces advanced production equipment.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment:
As shown in Figure 1, the nitrogen gas generating system based on the membrane sepn principle that the present invention relates to, mainly filling with 7 by the air compressor 1 that is connected successively, aftercooler 2, air cushioning filling 3, filter set 4, well heater 5, film pipe group 6, nitrogen buffering consists of, described air compressor 1 is connected with air source, and the nitrogen buffering is filled with 7 and is connected with user terminal.
The inlet mouth of described aftercooler 2 is provided with temperature detecting controller and pneumatics protective valve.
Described filter set 4 is formed by 4 combination of filters.
Described well heater 5 is electric heater.
Be provided with pneumatic ball valve 10 between described well heater 5 and film pipe group 6.
Described film pipe group 6 and nitrogen buffering are disposed with check valve 11, control of purity valve 12, back pressure valve 13, nitrogen flow meter 14, blow-off valve 15 between filling with 7.
The outlet of described nitrogen buffering filling 7 is provided with manual ball valve and Y-tube.
Nitrogen producing craft based on above-mentioned nitrogen gas generating system is characterized in that, comprises the following steps:
(a) after extraneous air compresses by air compressor 1, enter aftercooler 2;
(b) 2 pairs of pressurized air that enter of aftercooler are lowered the temperature, and the pressurized air that flows out after aftercooler 2 coolings enters air cushioning and fills with 3;
(c) pressurized air is filled with 3 by air cushioning and is entered filter set 4 after buffering, and after filtering through filter group 4, uncontaminated air enters well heater 5;
(d) enter film pipe group 6 after uncontaminated air is heated in well heater 5;
(e) air that will process premenstruum of film pipe group 6 separates, and obtains purity and reaches nitrogen more than 95%;
(f) gained nitrogen enters the nitrogen buffering through check valve, nitrogen flow meter, blow-off valve and fills with 7, and stable nitrogen gas stream is delivered to user terminal by its air outlet.
In described step (a), it is 2.4MPa that extraneous air is compressed to pressure through air compressor 1.
In described step (d), uncontaminated air is heated to 50 ℃ in well heater 5.
The above is only preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, and every foundation technical spirit of the present invention, any simple modification, equivalent variations that above embodiment is done are within all falling into protection scope of the present invention.
Claims (10)
1. based on the nitrogen gas generating system of membrane sepn principle, it is characterized in that, mainly fill with (3), filter set (4), well heater (5), film pipe group (6), nitrogen buffering filling (7) formation by the air compressor that is connected successively (1), aftercooler (2), air cushioning, described air compressor (1) is connected with air source, and the nitrogen buffering is filled with (7) and is connected with user terminal.
2. the nitrogen gas generating system based on the membrane sepn principle according to claim 1, is characterized in that, the inlet mouth of described aftercooler (2) is provided with temperature detecting controller and pneumatics protective valve.
3. the nitrogen gas generating system based on the membrane sepn principle according to claim 1, is characterized in that, described filter set (4) is formed by 4 combination of filters.
4. the nitrogen gas generating system based on the membrane sepn principle according to claim 1, is characterized in that, described well heater (5) is electric heater.
5. the nitrogen gas generating system based on the membrane sepn principle according to claim 1, is characterized in that, is provided with pneumatic ball valve (10) between described well heater (5) and film pipe group (6).
6. the nitrogen gas generating system based on the membrane sepn principle according to claim 1, it is characterized in that, described film pipe group (6) and nitrogen buffering are filled with between (7) and are disposed with check valve (11), control of purity valve (12), back pressure valve (13), nitrogen flow meter (14), blow-off valve (15).
7. the nitrogen gas generating system based on the membrane sepn principle according to claim 1, is characterized in that, the outlet that described nitrogen buffering is filled with (7) is provided with manual ball valve and Y-tube.
8. based on the nitrogen producing craft of above-mentioned nitrogen gas generating system, it is characterized in that, comprise the following steps:
(a) after extraneous air compresses by air compressor (1), enter aftercooler (2);
(b) aftercooler (2) is lowered the temperature to the pressurized air that enters, and the pressurized air that flows out after aftercooler (2) cooling enters air cushioning and fills with (3);
(c) pressurized air is filled with (3) by air cushioning and is entered filter set (4) after buffering, and after filtering through filter group (4), uncontaminated air enters well heater (5);
(d) uncontaminated air enters film pipe group (6) after being heated in well heater (5);
(e) air that will process premenstruum of film pipe group (6) separates, and obtains purity and reaches nitrogen more than 95%;
(f) gained nitrogen enters the nitrogen buffering through check valve, nitrogen flow meter, blow-off valve and fills with (7), and stable nitrogen gas stream is delivered to user terminal by its air outlet.
9. nitrogen producing craft according to claim 8, is characterized in that, in described step (a), it is 2.4MPa that extraneous air is compressed to pressure through air compressor (1).
10. nitrogen producing craft according to claim 8, is characterized in that, in described step (d), uncontaminated air is heated to 50 ℃ in well heater (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110385157 CN103101890A (en) | 2011-11-14 | 2011-11-14 | Nitrogen production system and nitrogen production process based on membrane separation principle |
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| CN 201110385157 CN103101890A (en) | 2011-11-14 | 2011-11-14 | Nitrogen production system and nitrogen production process based on membrane separation principle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108423644A (en) * | 2018-04-10 | 2018-08-21 | 上海垣锦机电设备制造有限公司 | A kind of film separation and nitrogen-making device |
| CN115385310A (en) * | 2022-08-29 | 2022-11-25 | 如东县华盛化工有限公司 | High-efficiency nitrogen production method and nitrogen production system |
-
2011
- 2011-11-14 CN CN 201110385157 patent/CN103101890A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108423644A (en) * | 2018-04-10 | 2018-08-21 | 上海垣锦机电设备制造有限公司 | A kind of film separation and nitrogen-making device |
| CN115385310A (en) * | 2022-08-29 | 2022-11-25 | 如东县华盛化工有限公司 | High-efficiency nitrogen production method and nitrogen production system |
| CN115385310B (en) * | 2022-08-29 | 2023-08-15 | 如东县华盛化工有限公司 | High-efficiency nitrogen production method and nitrogen production system |
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Application publication date: 20130515 |