CN202822838U - Device for dehydrating and dealkylating wet associated gas in oil field - Google Patents
Device for dehydrating and dealkylating wet associated gas in oil field Download PDFInfo
- Publication number
- CN202822838U CN202822838U CN 201220317562 CN201220317562U CN202822838U CN 202822838 U CN202822838 U CN 202822838U CN 201220317562 CN201220317562 CN 201220317562 CN 201220317562 U CN201220317562 U CN 201220317562U CN 202822838 U CN202822838 U CN 202822838U
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- China
- Prior art keywords
- heat exchanger
- outlet
- import
- export
- hydrocarbon
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 230000008676 import Effects 0.000 claims abstract description 22
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 238000004581 coalescence Methods 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 230000008595 infiltration Effects 0.000 claims abstract description 10
- 238000001764 infiltration Methods 0.000 claims abstract description 10
- 229930195733 hydrocarbon Natural products 0.000 claims description 29
- 150000002430 hydrocarbons Chemical class 0.000 claims description 29
- 239000004215 Carbon black (E152) Substances 0.000 claims description 28
- 241000446313 Lamella Species 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 5
- 230000018044 dehydration Effects 0.000 abstract description 4
- 238000006297 dehydration reaction Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 230000020335 dealkylation Effects 0.000 abstract 1
- 238000006900 dealkylation reaction Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000003921 oil Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a device of wet associated gas dehydration and dealkylation in oil field, including plate heat exchanger, plate heat exchanger one side is equipped with the export of the first import of heat exchanger and heat exchanger second, and the opposite side is equipped with the import of heat exchanger second and the first export of heat exchanger, and the first import of heat exchanger is linked together with the first export of heat exchanger, and the import of heat exchanger second is linked together with the export of heat exchanger second, the first exit linkage air cooler of heat exchanger, coalescence filtering separator is connected to the air cooler, coalescence filtering separator connects the import of heat exchanger second, heat exchanger second exit linkage membrane separator, be equipped with first export and second export on the membrane separator, first exit linkage dry gas pipeline, second exit linkage infiltration gas pipeline. The utility model discloses a plate-fin air cooling heat transfer technique has improved the treatment effeciency of device, has reduced the device energy consumption. The utility model discloses a device skid-mounted design is convenient for transport and installation, saves construction cycle.
Description
Technical field
The utility model relates to field of petroleum exploitation, and particularly the wet associated gas in a kind of oil field takes off the device of hydrocarbon.
Background technology
Crude oil contains abundant associated gas when exploiting out from the stratum, contain saturation water and hydrocarbon in the associated gas, is wet associated gas.Wet associated gas is in course of conveying, along with drop in temperature, moisture content is separated out from wet associated gas, form aqueous water, ice and natural gas solid water compound, reduced on the one hand the negotiability of collection gas pipeline, cause the obstruction of pipeline, valve, instrument etc. when serious, the safety and economic operation of impact collection gas transmission line; Accelerate simultaneously the corrosion of collection gas pipeline.Therefore, the wet associated gas of station in oilfield enters the moisture content that must remove before pipeline is carried wherein, makes its water dew point temperature be reduced to setting or safety value.
The existence of same hydrocarbon, also can condense along with the reduction of temperature separates out, and coalescent at pocket, blocking pipeline affects gas transmission, returns simultaneously the downstream natural gas user and causes potential safety hazard, also must remove before entering the pipeline conveying.
Station in oilfield mainly uses aerial cooler that wet associated gas is lowered the temperature at present, and moisture and hydrocarbon are removed from wet associated gas.Taking off the hydrocarbon device adopts molecular sieve dehydration device and TEG dehydration device to dewater in addition, air cooling and the Cryo Equipment hydrocarbon that dewaters simultaneously, the small pressure difference throttling arrangement takes off hydrocarbon, and absorption plant and low temperature process Association Technology Devices take off hydrocarbon, also has in addition external supersonic speed separating and dehydrating to take off hydrocarbon device etc.
In realizing process of the present utility model, the inventor finds that there is following problem at least in prior art: the hydrocarbon device is taken off in existing dehydration, and its removal effect is undesirable, and existing apparatus takes up an area very large usually, and flow process is complicated, invests very highly, and certain service condition is arranged.
The utility model content
The purpose of the utility model embodiment is the defective for above-mentioned prior art, and providing a kind of can separate the water in the associated gas that wets and hydrocarbon simultaneously, and reduce investment outlay, the wet associated gas in oil field of occupation of land and operating cost takes off the device of hydrocarbon.
The technical scheme taked of the utility model is to achieve these goals:
The wet associated gas in a kind of oil field takes off the device of hydrocarbon, comprise plate type heat exchanger, described plate type heat exchanger one side is provided with heat exchanger the first import and heat exchanger the second outlet, opposite side is provided with heat exchanger the second import and heat exchanger the first outlet, described heat exchanger the first import is connected with described heat exchanger the first outlet, described heat exchanger the second import is connected with described heat exchanger the second outlet, described heat exchanger the first outlet connects air cooler, described air cooler connects the coalescence filtration separator, described coalescence filtration separator connects described heat exchanger the second import, described heat exchanger the second outlet junctional membrane separator, described membrane separator is provided with the first outlet and the second outlet, described the first outlet connects the dry gas conveyance conduit, and described the second outlet connects infiltration letter shoot road.
Described plate type heat exchanger is welded plate type heat exchanger, wound tube heat exchanger or lamella heat exchanger.
The connecting bypass pipe is gone back in described heat exchanger the second outlet, and described bypass pipe connects the dry gas conveyance conduit.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
(1) adopt air cooling to add the method for organic hydrocarbon steam blanket, not only remove the part water in the wet associated gas but also remove hydrocarbon, water and heavy hydrocarbon are separated simultaneously, and outward defeated water dew point and hydrocarbon dew point is simultaneously qualified to make associated gas, effectively reduces because of water, hydrocarbon to have the problem of burn into blocking pipe of separating out.
(2) adopt efficient plate-fin air cooling heat transfer technology, improved the treatment effeciency of device, reduced plant energy consumption.
(3) device of the present utility model can the sledge dressization manufacture and design, and is convenient to transportation and the saving construction period is installed.
Description of drawings
Fig. 1 is the process flow diagram that the wet associated gas in the oil field that provides of the utility model embodiment takes off hydrocarbon.
Among the figure:
1 plate type heat exchanger, 2 coalescence filtration separators, 3 membrane separators, 4 air coolers, 5 first outlets, 6 second outlets, 7 dry gas conveyance conduits, 8 bypass pipes, 9 infiltration letter shoot roads, the first import of 10 heat exchangers, the first outlet of 11 heat exchangers, the second outlet of 12 heat exchangers, the second import of 13 heat exchangers.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
Referring to Fig. 1, the wet associated gas in a kind of oil field takes off the device of hydrocarbon, comprise plate type heat exchanger 1, plate type heat exchanger 1 one sides are provided with heat exchanger the first import 10 and heat exchanger the second outlet 12, opposite side is provided with heat exchanger the second import 13 and heat exchanger the first outlet 11, heat exchanger the first import 10 is connected with heat exchanger the first outlet 11, heat exchanger the second import 13 is connected with heat exchanger the second outlet 12, heat exchanger the first outlet 11 connects air cooler 4, air cooler 4 connects coalescence filtration separator 2, coalescence filtration separator 2 connects heat exchanger the second import 13, heat exchanger the second outlet 12 junctional membrane separators 3, membrane separator 3 is provided with 7, the second outlets 6 of the first outlet the 5 and second outlet 6, the first outlets 5 connection dry gas conveyance conduits and connects infiltration letter shoot road 9.
Device of the present utility model adopts efficient plate-fin air cooling heat transfer technology, has improved the treatment effeciency of device, has reduced plant energy consumption.Device of the present utility model can also become the sledge design and manufacture, reduces investment outlay, occupation of land and operating cost.
Plate type heat exchanger and air cooler are in-one device, are generically and collectively referred to as the plate fin heat-exchanging air cooler, and wherein plate type heat exchanger is selected contra-flow heat exchanger, and when operating pressure is lower than 4.0MPa, plate type heat exchanger is selected welded plate type heat exchanger; When 4.0MPa worked with upward pressure, plate type heat exchanger was selected wound tube heat exchanger or lamella heat exchanger.
Device of the present utility model can the sledge dressization manufacture and design, and is convenient to transportation and the saving construction period is installed.
For ease of the maintenance of membrane separator, connecting bypass pipe 8 is gone back in heat exchanger the second outlet 12, and bypass pipe 8 connects dry gas conveyance conduit 7.
The utility model also provides a kind of oil field process that wet associated gas takes off hydrocarbon, wet associated gas is through plate type heat exchanger 1, enter again plate type heat exchanger 1 behind air cooler 4 and the coalescence filtration separator 2, carry out heat exchange with the wet associated gas that enters plate type heat exchanger 1, enter membrane separator 3 from plate type heat exchanger 1 associated gas out, from membrane separator 3 two outlet output infiltration gas and dry gas, on the membrane separator 3 first outlet 5 is used for the output dry gas, dry gas enters dry gas conveyance conduit 7 and is used for outer defeated, on the membrane separator 3 second outlet 6 is used for output infiltration gas, the infiltration pneumatic transmission enters heating furnace, and the bottom of coalescence filtration separator 2 is provided with sewage draining exit.
The wet associated gas of the normal temperature of station in oilfield of the present utility model enters coalescence filtration separator 2 after through plate type heat exchanger 1, air cooler 4, enters membrane separator 3 through plate type heat exchanger 1 after taking off part water and hydrocarbon, and the infiltration gas that obtains removes heating furnace, and dry gas is defeated outward.Infiltration gas of the present utility model is water and the heavier hydro carbons of component.Use process of the present utility model, can remove simultaneously water and C
6Above hydrocarbon makes its water, hydrocarbon dew point etc. satisfy outer defeated requirement.Be suitable for oil field block station, supercharging point and similar occasion.This technique can be applicable to the pressure of 0.3～6.3MPa, 0.2 * 10
4m
3/ d～2 * 10
4m
3The treating capacity of/d, simple flow is fundamentally reduced investment outlay, occupation of land and operating cost, and process unit can also become the sledge design and manufacture simultaneously.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. the wet associated gas in an oil field takes off the device of hydrocarbon, it is characterized in that, comprise plate type heat exchanger, described plate type heat exchanger one side is provided with heat exchanger the first import and heat exchanger the second outlet, opposite side is provided with heat exchanger the second import and heat exchanger the first outlet, described heat exchanger the first import is connected with described heat exchanger the first outlet, described heat exchanger the second import is connected with described heat exchanger the second outlet, described heat exchanger the first outlet connects air cooler, described air cooler connects the coalescence filtration separator, described coalescence filtration separator connects described heat exchanger the second import, described heat exchanger the second outlet junctional membrane separator, described membrane separator is provided with the first outlet and the second outlet, and described the first outlet connects the dry gas conveyance conduit, and described the second outlet connects infiltration letter shoot road.
2. the wet associated gas in oil field according to claim 1 takes off the device of hydrocarbon, it is characterized in that, described plate type heat exchanger is welded plate type heat exchanger, wound tube heat exchanger or lamella heat exchanger.
3. the wet associated gas in oil field according to claim 1 and 2 takes off the device of hydrocarbon, it is characterized in that, the connecting bypass pipe is gone back in described heat exchanger the second outlet, and described bypass pipe connects the dry gas conveyance conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317562 CN202822838U (en) | 2012-06-29 | 2012-06-29 | Device for dehydrating and dealkylating wet associated gas in oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317562 CN202822838U (en) | 2012-06-29 | 2012-06-29 | Device for dehydrating and dealkylating wet associated gas in oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202822838U true CN202822838U (en) | 2013-03-27 |
Family
ID=47934641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220317562 Expired - Fee Related CN202822838U (en) | 2012-06-29 | 2012-06-29 | Device for dehydrating and dealkylating wet associated gas in oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202822838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699136A (en) * | 2019-11-22 | 2020-01-17 | 杰瑞(天津)石油工程技术有限公司 | Well head gas purification system |
-
2012
- 2012-06-29 CN CN 201220317562 patent/CN202822838U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110699136A (en) * | 2019-11-22 | 2020-01-17 | 杰瑞(天津)石油工程技术有限公司 | Well head gas purification system |
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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 |
Granted publication date: 20130327 Termination date: 20210629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |