CN213113217U - Quick dewatering equipment of crude oil extraction liquid - Google Patents
Quick dewatering equipment of crude oil extraction liquid Download PDFInfo
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- CN213113217U CN213113217U CN202022056255.3U CN202022056255U CN213113217U CN 213113217 U CN213113217 U CN 213113217U CN 202022056255 U CN202022056255 U CN 202022056255U CN 213113217 U CN213113217 U CN 213113217U
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Abstract
The utility model relates to a crude oil extraction liquid rapid dehydration equipment, which relates to the field of petroleum processing equipment, in particular to a crude oil extraction liquid rapid dehydration equipment, comprising an oil feeder, a dosing device, a hollow conical separator and a crude oil tank, wherein the oil feeder is provided with an extraction liquid oil inlet, and the bottom of the oil feeder is provided with a crude oil inlet; the oil feeder is provided with a heating device; the crude oil inlet of the oil feeder is communicated with the dosing device through a pipeline; the utility model discloses simple structure utilizes the crude oil heating of heating device in to advancing the oil ware to add the demulsifier, utilize the spiral crude oil to carry the crude oil that the coil pipe will add the demulsifier to cavity toper separator lower part, because inertia, can form the vortex at cavity toper separator bottom, form centrifugal force, the separation of dehydrating under centrifugal force and demulsifier combined action combines emulsion breaker to realize that the emulsion layer is broken, crude oil after final dehydration gets into subsequent processing through purifying crude oil export overflow.
Description
Technical Field
The utility model relates to a petroleum processing equipment field, concretely relates to quick dewatering equipment of crude oil extraction liquid.
Background
With the continuous development of oil field development technology, various production increasing measures, such as means of water injection, polymer oil displacement, microbial oil displacement, surfactant oil displacement and the like, are widely popularized, and in addition, oil fields enter a medium-high water-cut stage, the emulsification of crude oil and water is more serious on site, the conventional dehydration process flow is more and more incapable of meeting the requirements, the water content of the crude oil causes the large increase of the gathering and transportation pipelines, storage tanks, power consumption and fuel consumption of the oil fields, and simultaneously causes the scaling and corrosion of the pipelines and equipment. When the water content is higher, a two-stage dehydration method is usually adopted, the water content is reduced to be lower than 30% by a chemical sedimentation method, and then the treatment is carried out by an electric dehydration method. Because the chemical dehydration needs longer time to reach the quality of purified oil, and the operation is difficult when the high-water-content crude oil is treated by the electric dehydration, the combination of the chemical dehydration and the electric dehydration can make up for the shortages.
SUMMERY OF THE UTILITY MODEL
The utility model provides a quick breakdown of emulsion equipment of crude oil extraction liquid solves among the prior art high moisture crude oil emulsification after, and the breakdown of emulsion is long, technical problem not thorough of dehydration.
The utility model relates to a crude oil extraction liquid rapid dehydration device, which comprises an oil feeder, a dosing device, a hollow conical separator and a crude oil tank, wherein the oil feeder is provided with an extraction liquid inlet, and the bottom of the oil feeder is provided with a crude oil inlet; the oil feeder is provided with a heating device; the crude oil inlet of the oil feeder is communicated with the dosing device through a pipeline;
a crude oil tank is connected above the hollow conical separator, and the inner area of the crude oil tank is communicated with the inner area of the hollow conical separator through an emulsion layer crushing device;
the lower part of the hollow conical separator is provided with a crude oil dehydration oil inlet, and the crude oil dehydration oil inlet is communicated with a crude oil inlet at the bottom of the oil feeder through a spiral crude oil conveying coil pipe;
the crude oil tank is also provided with a purified crude oil outlet, and the bottom of the hollow conical separator is provided with a crude oil dewatering and discharging port.
Preferably, the heating device comprises a jacket-shaped oil feeder shell, and the oil feeder shell is filled with a heating medium and a heating structure for heating the heating medium.
Preferably, the heating structure is a solar heater or a steam heater or an electric heater.
Preferably, the emulsion layer breaker includes that the shutoff sets up the division board in cavity toper separator upper end, the equipartition has broken hole on the division board.
Or preferably, the hollow conical separator is conical.
Preferably, the crude oil transfer coil surrounds the hollow conical separator and the crude oil tank, and the height of the purified crude oil outlet in the vertical direction is smaller than the height of the crude oil dehydration oil inlet in the vertical direction.
Preferably, the distance between the purified crude oil outlet and the top of the crude oil tank is 1-3 m.
The utility model discloses simple structure, high durability and convenient use, utilize the crude oil heating of heating device in to advancing the oil ware, and adopt charge device to add the demulsifier in the crude oil after the heating, utilize spiral crude oil conveying coil to carry the crude oil that will add the demulsifier to cavity toper separator lower part, spiral type conveying coil will add crude oil demulsifier gravitational potential energy and turn into kinetic energy, crude oil is when cutting into cavity toper separator bottom entry, because inertia, can form the vortex at cavity toper separator bottom, the vortex is in cavity toper separator cavity, can form centrifugal force, dewater the separation under centrifugal force and demulsifier combined action, it is broken to combine emulsion breaker to realize the emulsion layer, crude oil after final dehydration is through purifying crude oil export overflow stream the utility model discloses get into follow-up processing. The utility model discloses shorten the breakdown of emulsion time, improved breakdown of emulsion efficiency, can reach the thorough effect of dehydration.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic diagram of a crude oil settling tank.
Reference numerals: 1-an oil feeder, 2-a crude oil conveying coil pipe, 3-a hollow conical separator, 4-a crude oil tank, 5-a pipeline, 6-a heating structure, 7-a dosing device, 8-a crude oil dehydration oil inlet, 9-a dehydration discharge port, 10-a partition plate and 11-a purified crude oil outlet.
Detailed Description
The utility model relates to a crude oil extraction liquid rapid dehydration device, which comprises an oil feeder 1, a dosing device 7, a hollow conical separator 3 and a crude oil tank 4, wherein the oil feeder 1 is provided with an extraction liquid inlet, and the bottom of the oil feeder 1 is provided with a crude oil inlet; the oil feeder 1 is provided with a heating device; the crude oil inlet of the oil feeder 1 is communicated with the dosing device 7 through a pipeline 5;
a crude oil tank 4 is connected above the hollow conical separator 3, and the inner area of the crude oil tank 4 is communicated with the inner area of the hollow conical separator 3 through an emulsion layer crushing device;
a crude oil dehydration inlet 8 is formed in the lower portion of the hollow conical separator 3, and the crude oil dehydration inlet 8 is communicated with a crude oil inlet at the bottom of the oil feeder 1 through a spiral crude oil conveying coil pipe 2;
the crude oil tank 4 is also provided with a purified crude oil outlet 11, and the bottom of the hollow conical separator 3 is provided with a crude oil dewatering discharge port 9.
The heating device comprises a jacket-shaped oil feeder 1 shell, and a heating medium and a heating structure 6 for heating the heating medium are filled in the oil feeder 1 shell.
The heating structure 6 is a solar heater or a steam heater or an electric heater.
Emulsion layer breaker includes that the shutoff sets up division board 10 in 3 upper ends of cavity toper separator, the equipartition has broken hole on division board 10.
The hollow conical separator 3 is conical.
The crude oil conveying coil 2 surrounds the hollow conical separator 3 and the crude oil tank 4, and the height of the crude oil outlet of the purified oil in the vertical direction is smaller than that of the crude oil inlet in the direction. When in use, the crude oil conveying coil 2 can extend into the crude oil dehydration oil inlet 8 along the tangential direction.
The distance between the purified crude oil outlet 11 and the top of the crude oil tank 4 is 1-3 m.
The oil inlet is connected with one end of the crude oil conveying coil pipe 2, and the dewatering water discharge port is used for discharging dewatering water to the sewage treatment unit.
The crude oil tank 4 is a rectangular tank body, the bottom of the crude oil tank 4 is connected with the upper end of the hollow conical separator 3, purified crude oil dehydrated from crude oil extraction liquid enters the crude oil tank 4 through crushing holes densely distributed on the partition board 10, and when the crude oil amount in the crude oil tank 4 is continuously increased and the liquid level rises to the position of the purified crude oil outlet 11, the crude oil can overflow from the purified crude oil outlet 11 to crude oil delivery equipment or a purified crude oil storage tank.
The utility model discloses when carrying out the quick dehydration of crude oil extraction liquid, from the extraction liquid oil inlet department of oil feeder 1, empty crude oil extraction liquid into in the oil feeder 1, crude oil extraction liquid is heated by the heating device on the oil feeder 1, the crude oil demulsifier passes through charge device 7 and mixes in 1 bottom of oil feeder and crude oil extraction liquid, then carry to crude oil dehydration oil inlet 8 fast through crude oil conveying coil pipe 2, crude oil extraction liquid forms the fluid that has certain speed, after getting into 3 lower parts of cavity toper separator, in 3 bottom inner chambers of cavity toper separator, form the vortex, the centrifugation that the vortex produced, with oil-water quick separation in crude oil extraction liquid. Purified crude oil at the separation part moves upwards, dehydrated water is continuously discharged through a dehydrated water discharge port, along with the continuous accumulation of the purified crude oil amount in the hollow conical separator 3, the purified crude oil enters the crude oil tank 4 through crushing holes densely distributed on the partition plate 10, and along with the continuous rising of the liquid level, the purified crude oil finally overflows to an external transportation device through a purified crude oil outlet 11. The utility model discloses at practical in-process, utilized crude oil extraction liquid gravitational potential energy to turn into kinetic energy, the vortex centrifugation that forms has accelerateed the dehydration of chemical dehydrating agent, with chemical dehydration and the ingenious combination of physical dehydration, realized better dehydration.
The utility model discloses simple structure, convenient to use utilizes heating device to the crude oil heating in advancing oil ware 1 to adopt charge device 7 to add the demulsifier in the crude oil after the heating, utilize spiral crude oil conveying coil pipe 2 to carry the crude oil that adds the demulsifier to 3 lower parts of cavity toper separator, dewater and separate, combine emulsion breaker to realize that the emulsion is broken, the crude oil after the final dehydration is through purifying 11 overflows of crude oil export the utility model discloses get into subsequent processing. The utility model discloses shorten the breakdown of emulsion time, improved breakdown of emulsion efficiency, can reach the thorough effect of dehydration.
Examples
Laboratory simulation the utility model discloses contrast the crude oil dehydration effect that contains water with the crude oil settling cask, the utility model discloses the structure is as shown in fig. 1, and the crude oil settling cask structure is as shown in fig. 2.
Add 100ppm crude oil demulsifier with 25% aqueous crude oil of moisture, preheat to 40 ℃ after the mixing, with the same pump speed, respectively from the crude oil feeder 1 in figure 1, position a department pump in figure 2, when crude oil is followed the utility model discloses well purification crude oil export 11 department, spill over from b department in figure 2, begin the timing, when testing respectively and spilling over back 2h, 4h, 6h, 8h, 10h, 12h and 14h, the utility model discloses well purification crude oil export 11 department, b department crude oil moisture content in figure 2. The test results are shown in table 1:
TABLE 1
| Time | Crude oil containing water at outlet of conical centrifugal separator | Simulating crude oil water content at outlet of crude oil settling tank |
| 2h | 0.1% | 0.4% |
| 4h | 0.05% | 0.3% |
| 6h | 0.07% | 0.4% |
| 8h | 0.05% | 0.3% |
| 10h | 0.08% | 0.5% |
| 12h | 0.07% | 0.5% |
| 14h | 0.05% | 0.3% |
According to the simulation experiment result, the water content of the crude oil is greatly reduced compared with that of the crude oil settling tank in the same time period by the hollow conical separator 3, namely when the water-containing crude oil is treated by the hollow conical separator 3, the purified crude oil with the same water content as the crude oil settling tank is obtained, the required time of the hollow conical separator 3 is obviously shortened, and the purpose of rapid dehydration is achieved.
Claims (7)
1. A crude oil produced liquid rapid dehydration device comprises an oil feeder (1), a dosing device (7), a hollow conical separator (3) and a crude oil tank (4), wherein the oil feeder (1) is provided with a produced liquid oil inlet, and the bottom of the oil feeder (1) is provided with a crude oil inlet; the device is characterized in that a heating device is arranged on the oil feeder (1); the crude oil inlet of the oil feeder (1) is communicated with the dosing device (7) through a pipeline (5);
a crude oil tank (4) is connected above the hollow conical separator (3), and the inner area of the crude oil tank (4) is communicated with the inner area of the hollow conical separator (3) through an emulsion layer crushing device;
a crude oil dehydration inlet (8) is formed in the lower portion of the hollow conical separator (3), and the crude oil dehydration inlet (8) is communicated with a crude oil inlet at the bottom of the oil feeder (1) through a spiral crude oil conveying coil pipe (2);
the crude oil tank (4) is also provided with a purified crude oil outlet (11), and the bottom of the hollow conical separator (3) is provided with a crude oil dewatering and discharging port (9).
2. The equipment for quickly dehydrating the crude oil produced liquid according to claim 1, wherein the heating device comprises a jacket-shaped oil feeder (1) shell, and the oil feeder (1) shell is filled with a heating medium and a heating structure (6) for controlling the temperature of the heating medium.
3. The equipment for the rapid dehydration of crude oil produced liquid according to claim 2, characterized in that said heating structure (6) is a solar heater or a steam heater or an electric heater.
4. The equipment for quickly dehydrating the crude oil produced liquid according to claim 2, wherein the emulsion layer crushing device comprises a separation plate which is plugged and arranged at the upper end of the hollow conical separator (3), and crushing holes are uniformly distributed on the separation plate.
5. The apparatus for the rapid dehydration of crude oil produced fluid according to any of the claims 1 to 4 characterized in that the hollow conical separator (3) is conical.
6. The equipment for the rapid dehydration of crude oil produced liquid according to claim 5 is characterized in that the crude oil conveying coil (2) is surrounded on the hollow conical separator (3) and the crude oil tank (4), and the purified crude oil outlet (11) is lower in height in the vertical direction than the crude oil inlet.
7. The equipment for rapidly dehydrating the crude oil produced liquid according to claim 6, wherein the distance from the purified crude oil outlet (11) to the top of the crude oil tank (4) is 1-3 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056255.3U CN213113217U (en) | 2020-09-18 | 2020-09-18 | Quick dewatering equipment of crude oil extraction liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056255.3U CN213113217U (en) | 2020-09-18 | 2020-09-18 | Quick dewatering equipment of crude oil extraction liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213113217U true CN213113217U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022056255.3U Expired - Fee Related CN213113217U (en) | 2020-09-18 | 2020-09-18 | Quick dewatering equipment of crude oil extraction liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113372946A (en) * | 2021-06-10 | 2021-09-10 | 江苏诺盟氢能技术有限公司 | Novel demulsification method for crude oil produced liquid |
-
2020
- 2020-09-18 CN CN202022056255.3U patent/CN213113217U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113372946A (en) * | 2021-06-10 | 2021-09-10 | 江苏诺盟氢能技术有限公司 | Novel demulsification method for crude oil produced liquid |
| CN113372946B (en) * | 2021-06-10 | 2022-03-11 | 江苏诺盟氢能技术有限公司 | Demulsification method for crude oil produced liquid |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210504 |