CN113893579A - Skid-mounted efficient vertical three-phase separator - Google Patents
Skid-mounted efficient vertical three-phase separator Download PDFInfo
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- CN113893579A CN113893579A CN202111156328.9A CN202111156328A CN113893579A CN 113893579 A CN113893579 A CN 113893579A CN 202111156328 A CN202111156328 A CN 202111156328A CN 113893579 A CN113893579 A CN 113893579A
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- oil
- gas
- skid
- phase separator
- cylinder body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000003921 oil Substances 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000010779 crude oil Substances 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims description 13
- 239000003595 mist Substances 0.000 claims description 6
- 239000012071 phase Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 11
- 238000005191 phase separation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0217—Separation of non-miscible liquids by centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/06—Dewatering or demulsification of hydrocarbon oils with mechanical means, e.g. by filtration
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Cyclones (AREA)
Abstract
The invention discloses a skid-mounted high-efficiency vertical three-phase separator, which comprises a cylinder body, a separator body and a separator body, wherein the cylinder body is used for storing an oil-gas-water mixture to be treated; the upper end enclosure is arranged on the top of the cylinder body; the lower end enclosure is arranged at the bottom of the cylinder body; the inlet is arranged on the cylinder and is used for introducing the oil-gas-water mixture into the cylinder; the oil collecting cavity is arranged in the cylinder body and is used for collecting crude oil in the oil-gas-water mixture; the lifting overflow weir plate is arranged on the oil collecting cavity and used for guiding the crude oil to flow into the oil collecting cavity; the gas-liquid splitter is arranged in the cylinder body and is used for gas-liquid separation of an oil-gas-water mixture; the cyclone is connected with the gas-liquid splitter; the spiral guide vane is arranged in the swirler; the water outlet is arranged on the lower end enclosure and used for discharging separated water; and the oil outlet is matched with the oil collecting cavity and used for discharging the separated crude oil.
Description
Technical Field
The invention belongs to the technical field of oil-water separation, and particularly relates to a skid-mounted efficient vertical three-phase separator.
Background
Before the oil-gas-water mixture enters the separator, gas and liquid need to be pre-separated. The purpose is to reduce the gas separation amount in the container greatly, improve the liquid phase processing capacity of the equipment obviously, keep the gas-liquid interface relatively stable and improve the oil-water separation effect.
For many years, the traditional horizontal three-phase separator has been applied to various large oil fields in China. The oil-water separator has the advantages of simple structure, convenient operation and complete oil-water separation. However, the sewage stays in the sedimentation tank for a long time, so that bacteria grow rapidly, corrosion of downstream treatment equipment is accelerated, and burden and maintenance cost of the equipment are increased. Secondly, with the large-scale development of high hydrocarbon oil fields, the oil field yield is continuously improved, and the traditional oil-water separation dehydration process cannot meet the production requirements.
Disclosure of Invention
The invention provides a skid-mounted high-efficiency vertical three-phase separator for overcoming the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a skid-mounted high-efficiency vertical three-phase separator comprises
The cylinder is used for storing an oil-gas-water mixture to be treated;
the upper end enclosure is arranged on the top of the cylinder body;
the lower end enclosure is arranged at the bottom of the cylinder body; the inlet is arranged on the cylinder and is used for introducing the oil-gas-water mixture into the cylinder;
the oil collecting cavity is arranged in the cylinder body and is used for collecting crude oil in the oil-gas-water mixture;
the lifting overflow weir plate is arranged on the oil collecting cavity and used for guiding the crude oil to flow into the oil collecting cavity;
the gas-liquid splitter is arranged in the cylinder body and is used for gas-liquid separation of an oil-gas-water mixture;
the cyclone is connected with the gas-liquid splitter;
the spiral guide vane is arranged in the swirler;
the water outlet is arranged on the lower end enclosure and used for discharging separated water;
an oil outlet matched with the oil collecting cavity is used for discharging the separated crude oil; during the use, oil-gas mixture gets into the gas-liquid shunt through the import, under the effect of centrifugal force, carries out preliminary gas-liquid separation, and liquid enters into the swirler, under the effect of helical guide vane, accomplishes the three-phase separation of oil, water, gas, and gaseous phase is discharged from the top, and oil drips to move to the center of helical guide vane gradually through centrifugal force, and the water phase removes to the swirler inner wall, flows out from the bottom. In order to ensure that the oil-water separation is more thorough, a secondary oil-water separation process is arranged, due to the density difference of oil and water, the water phase sinks to the bottom of the cylinder body to form a water layer and is discharged through the water outlet, the oil phase rises in the oil-water separation section and freely overflows to the oil collecting cavity through the liftable overflow weir plate and is discharged from the oil outlet, and the separation effect is further ensured.
Preferably, the gas-liquid splitter comprises a shell, a circular cutting inlet arranged on the shell, and a plurality of guide vanes arranged on the shell.
Preferably, two circular cutting inlets are arranged, and the circular cutting angle of the circular cutting inlets relative to the shell is 45 degrees; the incoming liquid enters the separator through the circular cutting inlet to form weak cyclone operation, so that the primary separation of gas and liquid is realized; the original energy of the oil-gas-water three-phase mixture is effectively utilized to generate the cyclone effect, the oil-water-gas three-phase separation process is accelerated, and the further emulsification effect of the strong cyclone effect or the collision effect on the oil phase is avoided.
Preferably, the guide vanes are forward arc vanes with equal thickness, and are uniformly arranged around the central axis of the shell, the inlet angle of the first-stage guide vane is 120 degrees, and the inlet angle of the stage-by-stage guide vane is increased by 5 degrees; the fluid can enter the next-stage flow deflector more stably, and the fluid is separated step by step to reduce the flow and better divide the flow channel.
Preferably, the water outlet and the oil outlet are both provided with a liquid level control valve; the liquid level control valve of the oil outlet is automatically opened when the liquid level in the oil collecting cavity reaches a set height, and is automatically closed when the liquid level in the oil collecting cavity is lower than the set height.
Preferably, an oil receiving pipeline is arranged below the cyclone; the separated oil phase can be directly discharged.
Preferably, the water outlet is provided with a vortex breaker.
Preferably, the upper end enclosure is provided with a mist catcher.
Preferably, the mist catcher is of a silk screen type structure; in the gas phase separation process, the liquid drops with the diameter more than 100 mu m can be settled out from the gas by gravity, the liquid drops with the diameter less than 100 mu m need to be removed by a liquid drop spray catcher, and the spray catcher mainly adopts a collision coalescence separation method to remove the oil drops contained in the gas in the settling separation process.
In conclusion, the oil-gas separation device is reasonable in structure, small in occupied area, suitable for skid-mounted and offshore platforms, high in separation efficiency and good in flexibility, and reduces the offshore oil-gas production cost, and the economic benefit is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the gas-liquid splitter of the present invention;
FIG. 4 is an enlarged view of a portion of the vortex breaker of the present invention.
Detailed Description
As shown in fig. 1-4, a skid-mounted high-efficiency vertical three-phase separator comprises a skid base 1, a skirt base 2, a lower seal head 3, a cylinder 4, an inlet 5, an upper seal head 6, an air outlet 7, a mist catcher 8, a gas-liquid flow divider 9, a spiral guide vane 11, a cyclone 12, a liftable overflow weir plate 13, an oil collecting pipeline 14, an oil collecting cavity 15, an oil outlet 16, a manhole 17, a vortex breaker 18, a lower seal head 19 and a water outlet 20, wherein the lower seal head 3 is fixed at the bottom of the cylinder and is provided with a water outlet pipeline and a sewage discharge pipeline; the skirt 2 is fixed at the bottom of the cylinder body; the prying seat 1 is fixed at the bottom of the skirt; the upper end enclosure 3 is fixed at the top of the cylinder body; the inlet 5 is formed in the side wall of the cylinder body; the air outlet 7 is formed in the upper sealing head; the mist catcher 8 is of a silk screen type structure and is connected with the air outlet through a pipeline; the gas-liquid splitter 9 is arranged at the upper end in the cylinder and connected with the inlet, and comprises a shell 91, circular cutting inlets 92 and flow deflectors 93, wherein the number of the circular cutting inlets 92 is preferably 2, and the circular cutting angle of the circular cutting inlets relative to the shell is 45 degrees; the guide vanes 93 are six forward constant-thickness arc-shaped vanes which are uniformly arranged around the central axis of the shell and are respectively a first-stage guide vane, a second-stage guide vane, a third-stage guide vane, a fourth-stage guide vane, a fifth-stage guide vane and a sixth-stage guide vane, the inlet angle of the first-stage guide vane is 120 degrees, and the inlet angle of the step-by-step guide vane is increased by 5 degrees; the cyclone 12 is connected to the lower end of the gas-liquid splitter; the spiral guide vane 11 is arranged in the cyclone; the oil collecting cavity 15 is arranged inside the cylinder body, an oil outlet pipeline is arranged in the oil collecting cavity, and the oil outlet pipeline is connected with a liquid level control valve; the liftable overflow weir plate 13 is arranged on the oil collecting cavity; the oil outlet 16 is formed in the side wall of the cylinder body and is connected with an oil outlet pipeline; the water outlet 20 is arranged at the bottom of the lower end enclosure, is connected with a water outlet pipeline and is provided with a liquid level control valve; the manhole is arranged on the cylinder body; the vortex breaker 18 is arranged at the water outlet and adopts a bent plate type. Because of the siphon action of the discharged liquid, the water outlet of the separator may generate a vortex, so that gas enters the water outlet, and the separation effect is deteriorated; one end of the oil collecting pipeline 14 is arranged below the cyclone.
During the use, oil-gas mixture gets into gas-liquid shunt 9 through import 5, under the effect of centrifugal force, carries out preliminary gas-liquid separation, and liquid enters into swirler 12, under the effect of spiral stator 11, accomplishes the three-phase separation of oil, water, gas, and the gaseous phase is discharged from the top, and oil drips and removes to spiral stator 11's center gradually through centrifugal force, passes through oil drain port 14 through oil receiving pipe and discharges, and the water phase removes to swirler 12 inner walls, flows out from the bottom. In order to ensure that the oil-water separation is more complete, a secondary oil-water separation process is provided, due to the density difference of oil and water, the water phase sinks to the bottom of the cylinder 4 to form a water layer and is discharged through the vortex breaker 18 and the water outlet 20, and the oil phase rises in the oil-water separation section and freely overflows to the oil collection cavity 15 through the liftable overflow weir plate 13 and is discharged from the oil outlet 16.
Claims (9)
1. A skid-mounted high-efficiency vertical three-phase separator is characterized by comprising
The cylinder is used for storing an oil-gas-water mixture to be treated;
the upper end enclosure is arranged on the top of the cylinder body;
the lower end enclosure is arranged at the bottom of the cylinder body;
the inlet is arranged on the cylinder and is used for introducing the oil-gas-water mixture into the cylinder;
the oil collecting cavity is arranged in the cylinder body and is used for collecting crude oil in the oil-gas-water mixture;
the lifting overflow weir plate is arranged on the oil collecting cavity and used for guiding the crude oil to flow into the oil collecting cavity;
the gas-liquid splitter is arranged in the cylinder body and is used for gas-liquid separation of an oil-gas-water mixture;
the cyclone is connected with the gas-liquid splitter;
the spiral guide vane is arranged in the swirler;
the water outlet is arranged on the lower end enclosure and used for discharging separated water;
and the oil outlet is matched with the oil collecting cavity and used for discharging the separated crude oil.
2. The skid-mounted high-efficiency vertical three-phase separator as recited in claim 1, wherein: the gas-liquid flow divider comprises a shell, a circular cutting inlet arranged on the shell and a plurality of flow deflectors arranged on the shell.
3. The skid-mounted high-efficiency vertical three-phase separator as recited in claim 2, wherein: the circular cutting inlets are two, and the circular cutting angle of the circular cutting inlets relative to the shell is 45 degrees.
4. The skid-mounted high-efficiency vertical three-phase separator as recited in claim 2, wherein: the guide vane is a forward equal-thickness circular arc blade and is uniformly arranged around the central axis of the shell, the inlet angle of the first-stage guide vane is 120 degrees, and the inlet angle of the stage-by-stage guide vane is increased by 5 degrees.
5. The skid-mounted high-efficiency vertical three-phase separator as recited in claim 1, wherein: and the water outlet and the oil outlet are both provided with liquid level control valves.
6. The skid-mounted high-efficiency vertical three-phase separator as recited in claim 1, wherein: an oil receiving pipeline is arranged below the cyclone.
7. The skid-mounted high-efficiency vertical three-phase separator as recited in claim 1, wherein: and the water outlet is provided with a vortex breaker.
8. The skid-mounted high-efficiency vertical three-phase separator as recited in claim 1, wherein: the upper end enclosure is provided with a mist catcher.
9. The skid-mounted high-efficiency vertical three-phase separator as recited in claim 8, wherein: the mist catcher adopts a silk screen type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156328.9A CN113893579A (en) | 2021-09-30 | 2021-09-30 | Skid-mounted efficient vertical three-phase separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156328.9A CN113893579A (en) | 2021-09-30 | 2021-09-30 | Skid-mounted efficient vertical three-phase separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113893579A true CN113893579A (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111156328.9A Pending CN113893579A (en) | 2021-09-30 | 2021-09-30 | Skid-mounted efficient vertical three-phase separator |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114177662A (en) * | 2022-02-14 | 2022-03-15 | 江苏光云环境科技有限公司 | Gas-liquid separation device with impurity filtering mechanism and method thereof |
| CN114653319A (en) * | 2022-03-31 | 2022-06-24 | 濮阳市联众兴业化工有限公司 | Device for producing pentane foaming agent and using method |
| CN115975671A (en) * | 2022-12-12 | 2023-04-18 | 江苏华普泰克石油装备有限公司 | Metering device suitable for petroleum three-phase separator and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201015725Y (en) * | 2007-01-30 | 2008-02-06 | 浙江理工大学 | Hypergravity mass transferrer |
| CN201277024Y (en) * | 2008-10-17 | 2009-07-22 | 胜利油田胜利工程设计咨询有限责任公司 | Slug flow catcher for oil-gas mixed transportation segment |
| CN101584945A (en) * | 2009-06-05 | 2009-11-25 | 宁波威瑞泰默赛多相流仪器设备有限公司 | A kind of gas-oil-water three-phase separating device |
| CN112933663A (en) * | 2021-04-26 | 2021-06-11 | 北京石油化工学院 | Oil-water-gas three-phase separator |
-
2021
- 2021-09-30 CN CN202111156328.9A patent/CN113893579A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201015725Y (en) * | 2007-01-30 | 2008-02-06 | 浙江理工大学 | Hypergravity mass transferrer |
| CN201277024Y (en) * | 2008-10-17 | 2009-07-22 | 胜利油田胜利工程设计咨询有限责任公司 | Slug flow catcher for oil-gas mixed transportation segment |
| CN101584945A (en) * | 2009-06-05 | 2009-11-25 | 宁波威瑞泰默赛多相流仪器设备有限公司 | A kind of gas-oil-water three-phase separating device |
| CN112933663A (en) * | 2021-04-26 | 2021-06-11 | 北京石油化工学院 | Oil-water-gas three-phase separator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114177662A (en) * | 2022-02-14 | 2022-03-15 | 江苏光云环境科技有限公司 | Gas-liquid separation device with impurity filtering mechanism and method thereof |
| CN114653319A (en) * | 2022-03-31 | 2022-06-24 | 濮阳市联众兴业化工有限公司 | Device for producing pentane foaming agent and using method |
| CN114653319B (en) * | 2022-03-31 | 2023-12-22 | 濮阳市联众兴业化工有限公司 | Device for producing pentane foaming agent and use method |
| CN115975671A (en) * | 2022-12-12 | 2023-04-18 | 江苏华普泰克石油装备有限公司 | Metering device suitable for petroleum three-phase separator and use method thereof |
| CN115975671B (en) * | 2022-12-12 | 2023-10-20 | 江苏华普泰克石油装备有限公司 | Metering device suitable for petroleum three-phase separator and use method thereof |
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Application publication date: 20220107 |