CN203048901U - Low-cost and low-energy natural gas recovering and processing device - Google Patents
Low-cost and low-energy natural gas recovering and processing device Download PDFInfo
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- CN203048901U CN203048901U CN 201220743724 CN201220743724U CN203048901U CN 203048901 U CN203048901 U CN 203048901U CN 201220743724 CN201220743724 CN 201220743724 CN 201220743724 U CN201220743724 U CN 201220743724U CN 203048901 U CN203048901 U CN 203048901U
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Abstract
The utility model provides a low-cost and low-energy natural gas recovering and processing device which belongs to the field of oil gas recovery. The low-cost and low-energy natural gas recovering and processing device comprises a natural gas recovering coupling device and a light hydrocarbon recovering coupling device and is characterized in that crude oil, natural gas and water three-phase fluid which is sprayed out from a high-pressure high-yield non-sulfur-containing oil and gas well is connected into an inlet of an oil nozzle manifold, and the oil nozzle manifold, a heat exchanger and a raw material separator are sequentially communicated through pipelines. A gas phase outlet of the raw material separator is divided into two paths, wherein one path is used for recovering natural gas through a gas-liquid separator, a cold flow channel of a plate-fin heat exchanger, a molecular sieve dehydration device and a dry gas compressor; and the other path is used for recovering light hydrocarbon through a flash tank, a flash vapor compressor, a heat flow channel of the plate-fin heat exchanger, a light hydrocarbon recovery device and a light hydrocarbon storage tank. The low-cost and low-energy natural gas recovering and processing device has the advantages of being miniaturized, being capable of rapidly and movably implementing recovery operation under the conditions of large floatation range of working conditions of the oil-gas well and complex production conditions, being capable of processing lots of natural gas, and being low in running energy consumption, low in investment cost and fast in income; and few equipment is needed.
Description
Technical field
Low-cost less energy-consumption Sweet natural gas recycling and processing device of the present utility model belongs to the oil gas field of gathering, and relates in particular to a kind of Sweet natural gas recycling and processing device.
Background technology
Often contain the higher gas reducing liquid (NGL of economic worth in the oil that the oil gas blowout goes out, the gas, Natural Gas Liquid) be light hydrocarbon component, part does not insert outer defeated pipe network as yet and is in the oil gas well of short-term test, and the Sweet natural gas that its open flow goes out is directly emptying burning often, causes energy dissipation.Small-sized integrated mobile Sweet natural gas retrieving arrangement has begun to use in recent years, but since treatment capacity mostly less than 8 * 10
4Nm
3/ d makes the Sweet natural gas of high pressure prolific well still can't reclaim fully, still has part to need the emptying burning.And large-scale integrated mobile Sweet natural gas return device is more owing to its equipment, and specification is bigger, and the pipeline complexity is made difficulty, moves mobile and on-the-spot the installation and has inconvenience, and application and development are limited to.
Summary of the invention
It is simple that the purpose of this utility model provides a kind of component devices, safe and reliable, is convenient to the low-cost less energy-consumption Sweet natural gas recycling and processing device of the integrated and mobile operating of modularization.
Sweet natural gas is under different pressure and temperatures, and its vapor liquid equilibrium state difference makes the heavy constituent of Sweet natural gas part, and namely the NGL components condense gets off to obtain lighter hydrocarbons.
Based on above-mentioned, the purpose of this utility model is achieved in that low-cost less energy-consumption Sweet natural gas recycling and processing device is reclaimed by Sweet natural gas and lighter hydrocarbons recovery two cover Coupling devices are formed, insert the crude oil, Sweet natural gas, the water three-phase fluid that go out from the blowout of the non-sulfur-bearing oil gas of high pressure high yield from the import of oil nozzle manifold, oil nozzle manifold, interchanger, material separator are communicated with by the pipeline order, the gaseous phase outlet of material separator is divided into two-way: the one road is connected to the import of gas-liquid separator, is equiped with the J-T throttling valve on the pipeline; Another road is connected to the heat passage import of plate-fin heat exchanger, is equiped with flow control valve on the pipeline; The connection of connecting successively of the cold flow passage of the gaseous phase outlet of gas-liquid separator, plate-fin heat exchanger and molecular sieve dehydration equipment, the outlet of molecular sieve dehydration equipment divides two-way: the one tunnel is communicated with the import of residue gas compressor, one road pipeline is standby, and valve is housed respectively on the two-way pipeline; The liquid phase outlet of material separator is communicated with the import of flash tank, is equiped with steam heating coil in the flash tank and is used for medium in the heating tank, and the gaseous phase outlet of this jar is communicated with the gaseous phase outlet of lighter hydrocarbons storage tank and is communicated with the import of flashed vapour compressor by pipeline; The outlet of flashed vapour compressor is communicated with one road gaseous phase outlet of material separator and is communicated with the heat passage import of plate-fin heat exchanger by pipeline, and the heat passage outlet of plate-fin heat exchanger is communicated with by the import of pipeline with lighter hydrocarbons recovery equipment; The liquid phase outlet of flash tank is communicated with oil, water delivery pipe road; The liquid phase outlet of gas-liquid separator is communicated with the sewage draining exit of flashed vapour compressor, the sewage draining exit of residue gas compressor, the heavy hydrocarbon lime set recovery import of lighter hydrocarbons recovery equipment by pipeline; The dry gas outlet of lighter hydrocarbons recovery equipment gathers the back by pipeline and the outlet of molecular sieve dehydration equipment and is communicated with the import of residue gas compressor, and the lighter hydrocarbons outlet of lighter hydrocarbons recovery equipment is communicated with by the import of pipeline with the lighter hydrocarbons storage tank; The outlet of residue gas compressor is communicated with the Sweet natural gas output channel; The liquid phase outlet of lighter hydrocarbons storage tank is communicated with the lighter hydrocarbons output channel.
Because implement technique scheme, this retrieving arrangement has following advantage:
1. because with the light hydrocarbon component in most of Sweet natural gas " transfer " flash distillation enrichment to the flash tank, thereby being primarily aimed at these part lighter hydrocarbons reclaims, simultaneously can control pending gas water content and be in lower level, the lighter hydrocarbons recovery equipment that associating J-T throttling refrigeration realization utilization is more small-sized and a spot of auxiliary facility are handled the Sweet natural gas than atm number, reduce on-the-spot installation and operation, maintenance workload, reduce and produce and handling cost, easily realize reclaiming by the operation of quick travel formula in a short time Sweet natural gas and the lighter hydrocarbons of high pressure prolific oil and gas field.
Though 2. increased a flashed vapour compressor, because the energy consumption of this recycling and processing device only is 30 ~ 50% of same device, thereby make cost of investment little, operation energy consumption is low, quick return on investment.
3. adaptive faculty is strong, can satisfy in the mobile operating each oil gas well operating mode scope and float greatly, implements to reclaim operation under the working condition complicated situation.
Description of drawings: concrete structure of the present utility model is provided by following drawings and Examples:
Fig. 1 is the structural representation of low-cost less energy-consumption Sweet natural gas recycling and processing device.
Legend: 1, oil nozzle manifold, 2, interchanger, 3, material separator, 4, J-T throttling valve, 5, gas-liquid separator, 6, plate-fin heat exchanger, 7, lighter hydrocarbons recovery equipment, 8, molecular sieve dehydration equipment, 9, residue gas compressor, 10, valve, 11, backup line, 12, the lighter hydrocarbons output channel, 13, lighter hydrocarbons storage tank, 14, oil, water delivery pipe road, 15, the flashed vapour compressor, 16, flash tank, 17, pipeline.
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 practical situation.
As shown in Figure 1, oil nozzle manifold 1, interchanger 2, material separator 3 are communicated with by pipeline 17 orders; The gaseous phase outlet of material separator 3 is divided into two-way: the pipeline 17 of leading up to is connected to the import of gas-liquid separator 5, is equiped with J-T throttling valve 4 on the pipeline 17; Another road is connected to the heat passage import of plate-fin heat exchanger 6 by pipeline 17, is equiped with valve 10 on the pipeline 17; The connection of connecting successively of the cold flow passage of the gaseous phase outlet of gas-liquid separator 5, plate-fin heat exchanger 6 and molecular sieve dehydration equipment 8, the outlet of molecular sieve dehydration equipment 8 divides two-way: the pipeline 17 of leading up to is communicated with the import of residue gas compressor 9, one the tunnel is communicated with backup line 11, usefulness when residue gas compressor 9 quantity are expanded in backup line 11 conducts is equipped with valve 10 respectively on the above-mentioned two-way pipeline 17; The liquid phase outlet of material separator 3 is communicated with the import of flash tank 16, be equiped with steam heating coil in flash tank 16 chambeies and be used for medium in the heating tank, the gaseous phase outlet of this jar is communicated with the gaseous phase outlet of lighter hydrocarbons storage tank 13 and is communicated with the import of flashed vapour compressor 15 by pipeline 17; The outlet of flashed vapour compressor 15 is communicated with one road gaseous phase outlet of material separator 3 and is communicated with the heat passage import of plate-fin heat exchanger 6 by pipeline 17, and the heat passage outlet of plate-fin heat exchanger 6 is communicated with the import of lighter hydrocarbons recovery equipment 7 by pipeline 17; The liquid phase outlet of flash tank 16 is communicated with oil, water delivery pipe road 14; The liquid phase outlet of gas-liquid separator 5 is communicated with the sewage draining exit of flashed vapour compressor 15, the sewage draining exit of residue gas compressor 9, the heavy hydrocarbon lime set recovery import of lighter hydrocarbons recovery equipment 7 by pipeline 17; The dry gas outlet of lighter hydrocarbons recovery equipment 7 gathers the back by pipeline 17 and the outlet of molecular sieve dehydration equipment 8 and is communicated with the import of residue gas compressor 9, and the lighter hydrocarbons outlet of lighter hydrocarbons recovery equipment 7 is communicated with the import of lighter hydrocarbons storage tank 13 by pipeline 17; The outlet of residue gas compressor 9 is communicated with the Sweet natural gas output channel; The liquid phase outlet of lighter hydrocarbons storage tank 13 is communicated with lighter hydrocarbons output channel 12.
Recycling process: crude oil, Sweet natural gas, water three-phase fluid that oil nozzle manifold 1 import access goes out from the blowout of the non-sulfur-bearing oil gas of high pressure high yield, after the 1 throttling step-down of oil nozzle manifold, enter interchanger 2, interchanger 2 control oil, gas, water three-phase fluid temperature are in low temperature, do not separate out but do not make it to take place solid phase in equipment or pipeline.The incoming stock separator 3 of the three-phase fluid that temperature is lower, under high pressure low temperature, the volatility light constituent will still be present in the crude oil liquid in most of light hydrocarbon component of Sweet natural gas and the crude oil, and gas water content also reduces relatively simultaneously.Because the volatility light constituent will be separated out in flash tank 16 flash distillations in downstream and is flashed air compressor 15 recovery in light hydrocarbon component and the crude oil, pressure is more high in material separator 3, and temperature is more low to be recovered with regard to more having more lighter hydrocarbons.The poorer Sweet natural gas of major part from material separator 3 gaseous phase outlets come out after J-T throttling valve 4 throttlings cooling, enters gas-liquid separator 5 and further isolates lighter hydrocarbons and the water that wherein condensation is got off.Lighter hydrocarbons and water export the blowdown lime set of coming with flashed vapour compressor 15 and residue gas compressor 9 blowdowns outlet through the gas-liquid separator liquid phase and gather, and the heavy hydrocarbon lime set of delivering to lighter hydrocarbons recovery equipment 7 reclaims import, by this equipment recovery lighter hydrocarbons wherein.Cryogenic natural gas after the cooling enters the cold flow passage of plate-fin heat exchanger 6 from the gaseous phase outlet of gas-liquid separator 5, and cryogenic natural gas provides the precooling cold for the Sweet natural gas of plate-fin heat exchanger 6 heat passage sides,, cryogenic natural gas self is by re-heat simultaneously.The Sweet natural gas of re-heat enters 8 dehydrations of molecular sieve dehydration equipment, and the Sweet natural gas that the Sweet natural gas after the dehydration and 7 recovery of lighter hydrocarbons recovery equipment obtain gathers transports to gas distributing system or the outward transport of compressed natural gas trailer outside residue gas compressor 9 compressions.
The oil-water two-phase flow body that comes out from material separator 3, the flash tank 16 that enters the low-voltage high-temperature operation carries out flash distillation, the steam heating coil control jar interior medium flash vaporization point in this jar.Volatile light constituent will enrichment in flash tank 16 upper gaseous phase spaces in the Sweet natural gas light hydrocarbon component of crude oil dissolving and the crude oil, gaseous phase outlet by this jar enters flashed vapour compressor 15 superchargings recovery with gathering from the next flashed vapour of the gaseous phase outlet of lighter hydrocarbons storage tank 13, and the Sweet natural gas that the flashed vapour after the supercharging comes out from material separator 3 with part enters the heat passage of plate-fin heat exchanger 6
,Obtain the cold of above-mentioned cryogenic natural gas through throttling cooling therein, temperature enters lighter hydrocarbons recovery equipment 7 after reducing.Outside oil, water delivery pipe road 14, transport to the tank car outward transport through the crude oil after the flash distillation and water.Handle Sweet natural gas that the Sweet natural gas that obtains handles through above-mentioned J-T throttling valve 4 throttlings and molecular sieve dehydration equipment 8 with another part through lighter hydrocarbons recovery equipment 7 through residue gas compressor 9 superchargings, defeated outward by the Sweet natural gas output channel.The lighter hydrocarbons that 7 processing obtain through lighter hydrocarbons recovery equipment enter lighter hydrocarbons storage tank 13 and store, and the flashed vapour of this groove is back to the import of flashed vapour compressor 15, and light hydrocarbon product is transported to the lng tanker outward transport outside lighter hydrocarbons output channel 12.
The related residue gas compressor 9 of this recycling and processing device is D-1.4/(30～70)-250 model, flashed vapour compressor 15 be D-7.57/(1～5)-60 types, be the reciprocating type natural gas compressor of horizontal symmetrical balance.Lighter hydrocarbons recovery equipment 7 is the NGL-3400 type, molecular sieve dehydration equipment 8 is the preposition fully-automatic dewatering drying installation of FWD-3400/5.4 II type, oil nozzle manifold 1 is the SG/S65-105 type, interchanger 2 is the LRCW4-42 type, material separator 3 is the LRC160/1000 type, and gas-liquid separator 5 is D800 * 1250 * 189 types, and plate-fin heat exchanger 6 is the BCH1.8-116/60 type, flash tank 16 is the LRH1.6-16v type, and lighter hydrocarbons storage tank 13 is D1800 * 7200 * 16 types.The all devices that relates in above-described embodiment, device are the business procurement part.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease inessential technical characterictic according to actual needs, satisfies the needs of different situations.
Claims (1)
1. low-cost less energy-consumption Sweet natural gas recycling and processing device, formed by Sweet natural gas recovery and lighter hydrocarbons recovery two cover Coupling devices, it is characterized in that: have access to the crude oil, Sweet natural gas, the water three-phase fluid that go out from the blowout of the non-sulfur-bearing oil gas of high pressure high yield from the import of oil nozzle manifold, oil nozzle manifold, interchanger, material separator are communicated with by the pipeline order, the gaseous phase outlet of material separator is divided into two-way: the one road is connected to the import of gas-liquid separator, is equiped with the J-T throttling valve on the pipeline; Another road is connected to the heat passage import of plate-fin heat exchanger, is equiped with flow control valve on the pipeline; The connection of connecting successively of the cold flow passage of the gaseous phase outlet of gas-liquid separator, plate-fin heat exchanger and molecular sieve dehydration equipment, the outlet of molecular sieve dehydration equipment divides two-way: the one tunnel is communicated with the import of residue gas compressor, one the tunnel is backup line, and valve is housed respectively on the two-way pipeline; The liquid phase outlet of material separator is communicated with the import of flash tank, is equiped with steam heating coil in the flash tank and is used for medium in the heating tank, and the gaseous phase outlet of this jar is communicated with the gaseous phase outlet of lighter hydrocarbons storage tank and is communicated with the import of flashed vapour compressor by pipeline; The outlet of flashed vapour compressor is communicated with one road gaseous phase outlet of material separator and is communicated with the heat passage import of plate-fin heat exchanger by pipeline, and the heat passage outlet of plate-fin heat exchanger is communicated with by the import of pipeline with lighter hydrocarbons recovery equipment; The liquid phase outlet of flash tank is communicated with oil, water delivery pipe road; The liquid phase outlet of gas-liquid separator is communicated with the sewage draining exit of flashed vapour compressor, the sewage draining exit of residue gas compressor, the heavy hydrocarbon lime set recovery import of lighter hydrocarbons recovery equipment by pipeline; The dry gas outlet of lighter hydrocarbons recovery equipment gathers the back by pipeline and the outlet of molecular sieve dehydration equipment and is communicated with the import of residue gas compressor, and the lighter hydrocarbons outlet of lighter hydrocarbons recovery equipment is communicated with by the import of pipeline with the lighter hydrocarbons storage tank; The outlet of residue gas compressor is communicated with the Sweet natural gas output channel; The liquid phase outlet of lighter hydrocarbons storage tank is communicated with the lighter hydrocarbons output channel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743724 CN203048901U (en) | 2012-12-31 | 2012-12-31 | Low-cost and low-energy natural gas recovering and processing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220743724 CN203048901U (en) | 2012-12-31 | 2012-12-31 | Low-cost and low-energy natural gas recovering and processing device |
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| CN203048901U true CN203048901U (en) | 2013-07-10 |
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| CN 201220743724 Expired - Fee Related CN203048901U (en) | 2012-12-31 | 2012-12-31 | Low-cost and low-energy natural gas recovering and processing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883287A (en) * | 2014-03-26 | 2014-06-25 | 中国海洋石油总公司 | Low-pressure natural gas recovering system for offshore gas field |
| CN109681780A (en) * | 2019-02-21 | 2019-04-26 | 中国石油工程建设有限公司 | A kind of complete gas well pressure charging system and operation method based on reciprocating compressor |
| CN109681151A (en) * | 2019-01-29 | 2019-04-26 | 重庆欣雨压力容器制造有限责任公司 | A kind of shale gas well head gas high-pressure treatment apparatus |
-
2012
- 2012-12-31 CN CN 201220743724 patent/CN203048901U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883287A (en) * | 2014-03-26 | 2014-06-25 | 中国海洋石油总公司 | Low-pressure natural gas recovering system for offshore gas field |
| CN103883287B (en) * | 2014-03-26 | 2016-09-21 | 中国海洋石油总公司 | Offshore gas field low pressure natural gas recovery system |
| CN109681151A (en) * | 2019-01-29 | 2019-04-26 | 重庆欣雨压力容器制造有限责任公司 | A kind of shale gas well head gas high-pressure treatment apparatus |
| CN109681780A (en) * | 2019-02-21 | 2019-04-26 | 中国石油工程建设有限公司 | A kind of complete gas well pressure charging system and operation method based on reciprocating compressor |
| CN109681780B (en) * | 2019-02-21 | 2023-10-31 | 中国石油工程建设有限公司 | Complete gas well supercharging system based on reciprocating compressor and operation method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XINJIANG CENOZOIC ERA PETROLEUM TECHNOLOGY CO., LT Free format text: FORMER NAME: XINJIANG XINSHENGDAI PETROLEUM TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 5 - 1 Building No. 841000 the Xinjiang Uygur Autonomous Region Bayinguoleng Mongolia Autonomous Prefecture of Korla City petrochemical Avenue Shengguo Mingyuan villa area Patentee after: XINJIANG CENOZOIC ERA PETROLEUM TECHNOLOGY Co.,Ltd. Address before: 5 - 1 Building No. 841000 the Xinjiang Uygur Autonomous Region Bayinguoleng Mongolia Autonomous Prefecture of Korla City petrochemical Avenue Shengguo Mingyuan villa area Patentee before: XINJIANG XINSHENGDAI PETROLEUM TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20211231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |