CN209890569U - Super viscous crude high frequency electric dehydration processing system - Google Patents
Super viscous crude high frequency electric dehydration processing system Download PDFInfo
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- CN209890569U CN209890569U CN201920755403.5U CN201920755403U CN209890569U CN 209890569 U CN209890569 U CN 209890569U CN 201920755403 U CN201920755403 U CN 201920755403U CN 209890569 U CN209890569 U CN 209890569U
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Abstract
The utility model discloses a super viscous crude high frequency electricity dehydration processing system, include: the rectangular wave alternating current pulse power supply, the transformer and the rectifier are connected in sequence; the electric dehydration tank comprises a shell, an upper pulse electrode plate and a lower pulse electrode plate, wherein the upper pulse electrode plate and the lower pulse electrode plate are parallelly and oppositely arranged in the shell and are arranged in parallel with an incoming liquid inlet, and one end of each of the upper pulse electrode plate and the lower pulse electrode plate is connected with a rectifier; the inlet of the shell is connected with an ultra-thick oil source, the outlet comprises a water phase outlet and an oil phase outlet, the water phase outlet is arranged at the lower end of the shell, and the oil phase outlet is arranged at the upper end of the shell. The system can be used for quickly dehydrating the super heavy oil.
Description
Technical Field
The utility model relates to an oil-water separation technical field, concretely relates to super viscous crude high frequency electricity dehydration processing system.
Background
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information constitutes prior art that is already known to a person skilled in the art.
Along with the rapid development of world economy, people have increasingly strong demand for energy, and along with the increase of energy consumption, in order to relieve the situation of shortage of crude oil supply in China, super heavy oil (relatively viscous petroleum, also called heavy oil) with a large reserve also becomes the object of main exploitation in China. The super heavy oil is mainly characterized by high content of colloid and asphaltene, low content of light fraction, high viscosity, poor properties and high density of oil products, and difficult exploitation. For such oil extraction, steam assisted oil recovery (SAGD) is a typical application technology, and the principle is to utilize the sensitivity of the viscosity of the oil to the temperature, and heat the oil reservoir of the formation by injecting high-temperature hot gas, so that the oil gradually starts to flow in the process of temperature rise and viscosity drop and flows into the corresponding production well, and the oil yield can be obviously improved. However, the inventor finds that the method brings many problems, such as the water content of the crude oil is up to 90%, the emulsification degree is high, the components are complex, and the like, and brings many problems to the later dehydration of the crude oil.
Disclosure of Invention
To the technical problem who exists among the above-mentioned prior art, the utility model aims at providing a super viscous crude high frequency electricity dehydration processing system. The system can be used for quickly dehydrating the super heavy oil.
In order to solve the technical problem, the technical scheme of the utility model is that:
a high-frequency electric dehydration treatment system for super heavy oil comprises:
the rectangular wave alternating current pulse power supply, the transformer and the rectifier are connected in sequence;
the electric dehydration tank comprises a shell, an upper pulse electrode plate and a lower pulse electrode plate, wherein the upper pulse electrode plate and the lower pulse electrode plate are parallelly and oppositely arranged in the shell and are arranged in parallel with an incoming liquid inlet, and one end of each of the upper pulse electrode plate and the lower pulse electrode plate is connected with a rectifier;
the inlet of the shell is connected with an ultra-thick oil source, the outlet comprises a water phase outlet and an oil phase outlet, the water phase outlet is arranged at the lower end of the shell, and the oil phase outlet is arranged at the upper end of the shell.
After a rectangular wave alternating current pulse power supply generates a rectangular wave, a voltage is boosted through a transformer, a high-voltage pulse electric field is generated between two pulse electrode plates which are arranged in parallel and oppositely, induction charges are formed in a dispersion phase (water), an insulating medium is formed in a continuous phase (oil), and water always keeps certain charges under the action of the induction electric field, so that water drops can generate a coalescence action between the water drops, the water drops continuously coalesce and grow under the oscillation of the pulse electric field, and finally settle at the bottom of an electric dehydration tank (20), and the dehydrated oil phase is sent out from the top of the electric dehydration tank.
In some embodiments, the treatment system further comprises a crude oil mixing tank and an electric heat tracing box, wherein the crude oil mixing tank comprises a shell and a stirring device, the stirring device is arranged inside the shell, an electric heat tracing coil is wound on the inner wall of the shell, an insulating layer is arranged on the outer wall of the shell, and the electric heat tracing coil is connected with the electric heat tracing box.
The electric tracing box generates heat after being electrified, and the generated heat is carried to the electric tracing coil pipe through a medium and exchanges heat with the super heavy oil in the crude oil mixing tank through the electric tracing coil pipe.
Because the dynamic viscosity of the super-thick oil is rapidly increased when the temperature of the super-thick oil is within 70 ℃, the electric tracing coil pipe is heated by the electric tracing box, and the super-thick oil in the original mixing tank is further heated to ensure that the temperature of the super-thick oil is above 70 ℃ so as to ensure the fluidity of the super-thick oil.
The stirring device stirs the super-thick oil to uniformly mix the super-thick oil, so that the liquidity of each part of the super-thick oil is kept consistent.
Further, the processing system also comprises a dosing tank and a mixer, the mixer is connected between the dosing tank and the electric degassing tank, and the crude oil mixing tank is connected with the mixer.
The chemical demulsifying agent is used for containing the demulsifying agent in the chemical dosing tank, the demulsifying agent is added into the mixer and is uniformly mixed with the super heavy oil from the crude oil mixing tank to carry out preliminary chemical demulsification, and the chemical demulsifying agent is favorable for subsequent high-voltage pulse electric field demulsification.
Furthermore, a plunger pump is connected between the dosing tank and the mixer. The demulsifier can be quantitatively added into the mixer through a plunger pump.
Still further, be provided with first filter between medicine adding jar and the plunger pump. The first filter can filter out large-particle solid in the demulsifier to prevent pollution to the super heavy oil.
Still further, a second filter is connected between the crude oil mixing tank and the mixer. The second filter can filter the super heavy oil and purify the super heavy oil.
Further, the mixer is a static mixer.
The static mixer is a high-efficiency mixing device without operation parts, and changes the flowing state of fluid in a pipe by using a mixing unit fixed in the pipe so as to achieve the aims of good dispersion and full mixing of different fluids.
Further, a plunger metering pump is connected between the mixer and the electric degassing tank. Is used for quantitatively conveying oil products into the electric dehydration tank.
In some embodiments, a water phase mass flowmeter is arranged on a water phase outlet pipeline of the electric dehydration tank, and an oil phase mass flowmeter is arranged on an oil phase outlet pipeline.
In some embodiments, the top of the electric degassing tank is provided with a gas outlet, and a valve is arranged on the gas outlet.
The generated gas can be discharged periodically to reduce the pressure in the electric dehydration tank and ensure the smooth electric dehydration of the super heavy oil.
The utility model has the advantages that:
two pulse electrode boards are arranged oppositely in parallel, under the condition of a rectangular wave alternating current pulse power supply, a high-voltage pulse electric field can be formed between the two pulse electrode boards, so that water drops are subjected to coalescence action, and under the oscillation of the high-voltage pulse electric field, the water drops are continuously coalesced and grow up and finally settle at the bottom of the electric dehydration tank, so that oil-water separation is realized. The addition of the emulsifier can accelerate the oil-water separation.
A heating device and a stirring device are arranged in the crude oil mixing tank to ensure good fluidity of the super heavy oil.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic flow chart of the super heavy oil high-frequency electric dehydration treatment process and method of the present invention;
the system comprises a dosing tank 1, an electric heat tracing box 2, an electric heat tracing coil pipe 3, an insulating layer 4, a crude oil mixing tank 5, a stirring motor 6, a first temperature sensor 8, a rectangular wave alternating current pulse power supply 9, a transformer 10, a rectifier 11, a pressure gauge 12, a pressure gauge 13, a second temperature sensor 14, a first stop valve 15, an oil phase mass flowmeter 16, a second stop valve 17, a third stop valve 18, a lower pulse electrode plate 19, an upper pulse electrode plate 20, an electric knockout tank 21, a fourth stop valve 22, a water phase mass flowmeter 23, a regulating valve 24, an eighth stop valve 25, a plunger metering pump 26, a mixer 27, a plunger pump 28, a first filter 29, a fifth stop valve 30, a second filter 31, a sixth stop valve 32 and a seventh stop valve.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1, a high-frequency electric dehydration processing system for super heavy oil, comprises: the device comprises a crude oil mixing tank 5, an electric tracing box 2, a dosing tank 1, a mixer 26, a rectangular wave alternating current pulse power supply 9, a transformer 10 and a rectifier 11 which are sequentially connected;
the crude oil mixing tank 5 comprises a shell and a stirring device, the stirring device is arranged in the shell, the stirring device is powered by a stirring motor 6, an electric heat tracing coil pipe 3 is wound on the inner wall of the shell, a heat insulation layer 4 is arranged on the outer wall of the shell, and the electric heat tracing coil pipe 3 is connected with an electric heat tracing box 2; the casing is provided with a first temperature sensor 8 for measuring the temperature of the super heavy oil in the crude oil mixing tank 5.
The blender 26 is connected between the dosing tank 1 and the electric degassing tank 20, the crude oil mixing tank 5 is connected with the blender 26, the plunger pump 27 is connected between the dosing tank 1 and the blender 26, the first filter 28 is arranged between the dosing tank 1 and the plunger pump 27, the second filter 30 and the sixth stop valve 31 are connected between the crude oil mixing tank 5 and the blender 26, and the blender 26 is a static mixer. The bottom of the crude oil mixing tank 5 is provided with a drainage pipeline, and a seventh stop valve 32 is arranged on the drainage pipeline and used for discharging a small amount of precipitated water.
A plunger metering pump 25 is connected between the mixer 26 and the electric degassing tank 20.
The electric dehydration tank 20 comprises a shell, an upper pulse electrode plate 19 and a lower pulse electrode plate 18, wherein the upper pulse electrode plate 19 and the lower pulse electrode plate 18 are parallelly and oppositely arranged in the shell, are arranged in parallel with an incoming liquid inlet, and are connected with the rectifier 11 at one end;
the import and the plunger measuring pump 25 of the 20 casings in electric dehydration jar are connected, are connected with eighth stop valve 24 between plunger measuring pump 25 and the casing, and the export includes aqueous phase export and oil phase export, and the aqueous phase export sets up in the lower extreme of casing, and the oil phase export sets up in the upper end of casing. The water phase outlet pipeline is provided with a fourth stop valve 21, a water phase mass flow meter 22 and a regulating valve 23, and the oil phase outlet pipeline is provided with a second stop valve 16, an oil phase mass flow meter 15 and a third stop valve 17.
The top of the electric degassing tank 20 is provided with a gas outlet, and the gas outlet is provided with a first stop valve 14. The electric degassing tank 20 is also provided with a pressure gauge 12 and a second temperature sensor 13.
The crude oil mixing tank 5 is filled with a mixture of super-thick oil and water, the dynamic viscosity of the super-thick oil is rapidly increased when the temperature is lower than 70 ℃, so that the fluidity of the super-thick oil is reduced, and in order to ensure that the feed liquid always keeps good fluidity in the electric dehydration process, an electric heat tracing coil pipe 3 and a heat insulation layer 4 are additionally arranged on the outer wall of the crude oil mixing tank 5, the electric heat tracing coil pipe 3 is controlled to be started and stopped by an electric heat tracing box 2, the electric heat tracing box 2 and a temperature sensor 8 are additionally arranged, when the temperature sensor 8 detects that the temperature of the feed liquid in the mixing tank 5 is lower than 90 ℃, the electric heat tracing box 2 is opened for heating, otherwise, the heating is closed, the feed liquid is always controlled in an ideal temperature range, a stirring motor 6 is always in a working state, the feed liquid is continuously stirred, the feed liquid.
Because the feed liquid in the crude oil mixing tank 5 has emulsification, the reverse demulsifier in the dosing tank 1 needs to be injected into the conveying pipeline at the bottom of the mixing tank 5 through the dosing plunger pump 27 and mixed by the static mixer 26 to carry out chemical demulsification so as to strengthen the later-stage electrodeionization treatment effect.
After the feed liquid and the demulsifier are fully mixed and reacted by the static mixer, the feed liquid and the demulsifier are pressurized by the crude oil plunger metering pump 25 and injected into the tank body through the liquid inlet arranged at the bottom of the electric dehydration tank 20.
After a rectangular wave is generated by a rectangular wave alternating current pulse power supply control box 9, the voltage is boosted by a 100:1 dehydration transformer 10, the generated 5.5kv high-voltage pulse wave acts on an upper pulse electrode plate 19 arranged above the inside of an electric dehydration tank 20 and a lower pulse electrode plate 18 arranged below the inside of the electric dehydration tank, and generates a high-voltage pulse oscillation electric field, so that the dispersed phase (water) in the electric dehydration tank 20 forms induced charges, the continuous phase (oil) forms an insulating medium, and the water always keeps certain charges under the action of the induced electric field, therefore, the water drops can generate coalescence among each other, under the oscillation of the pulse electric field and the chemical action of the demulsifier, the water drops continuously coalesce and grow up, so that the oil-water mixture can be quickly separated in a short time, the water phase is finally settled at the bottom of the electric dehydration tank 20 and discharged, and the dehydrated oil phase is sent out from the top of the electric dehydration tank 20. After the water flowing out from the water phase mass flowmeter 22 and the oil flowing out from the oil phase mass flowmeter 15 are measured and sampled and analyzed, the regulating valve 23 is adjusted so as to obtain the expected electric separation effect.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a super viscous crude high frequency electricity dehydration processing system which characterized in that: the method comprises the following steps:
the rectangular wave alternating current pulse power supply, the transformer and the rectifier are connected in sequence;
the electric dehydration tank comprises a shell, an upper pulse electrode plate and a lower pulse electrode plate, wherein the upper pulse electrode plate and the lower pulse electrode plate are parallelly and oppositely arranged in the shell and are arranged in parallel with an incoming liquid inlet, and one end of each of the upper pulse electrode plate and the lower pulse electrode plate is connected with a rectifier;
the inlet of the shell is connected with an ultra-thick oil source, the outlet comprises a water phase outlet and an oil phase outlet, the water phase outlet is arranged at the lower end of the shell, and the oil phase outlet is arranged at the upper end of the shell.
2. The processing system of claim 1, wherein: still include crude oil blending tank and electric heat tracing case, crude oil blending tank includes casing and agitating unit, and agitating unit sets up inside the casing, and the inner wall winding of casing has electric heat tracing coil pipe, and the outer wall of casing is provided with the heat preservation, electric heat tracing coil pipe is connected with electric heat tracing case.
3. The processing system of claim 2, wherein: still include with medicine jar and blender, the blender is connected between medicine jar and the electric dehydration jar, the crude oil blending tank is connected with the blender.
4. The processing system of claim 3, wherein: and a plunger pump is connected between the dosing tank and the mixer.
5. The processing system of claim 4, wherein: a first filter is arranged between the dosing tank and the plunger pump.
6. The processing system of claim 3, wherein: and a second filter is connected between the crude oil mixing tank and the mixer.
7. The processing system of claim 3, wherein: the mixer is a static mixer.
8. The processing system of claim 3, wherein: and a plunger metering pump is connected between the mixer and the electric dehydration tank.
9. The processing system of claim 1, wherein: and a water phase mass flowmeter is arranged on a water phase outlet pipeline of the electric dehydration tank, and an oil phase mass flowmeter is arranged on an oil phase outlet pipeline.
10. The processing system of claim 1, wherein: the top of the electric dehydration tank is provided with a gas outlet, and the gas outlet is provided with a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920755403.5U CN209890569U (en) | 2019-05-23 | 2019-05-23 | Super viscous crude high frequency electric dehydration processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920755403.5U CN209890569U (en) | 2019-05-23 | 2019-05-23 | Super viscous crude high frequency electric dehydration processing system |
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| CN209890569U true CN209890569U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920755403.5U Expired - Fee Related CN209890569U (en) | 2019-05-23 | 2019-05-23 | Super viscous crude high frequency electric dehydration processing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404098A (en) * | 2022-09-14 | 2022-11-29 | 天津市正方科技发展有限公司 | Ultrahigh frequency self-adaptive electric dehydration device and processing method |
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2019
- 2019-05-23 CN CN201920755403.5U patent/CN209890569U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404098A (en) * | 2022-09-14 | 2022-11-29 | 天津市正方科技发展有限公司 | Ultrahigh frequency self-adaptive electric dehydration device and processing method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 Termination date: 20200523 |