CN115838606A - Treatment method of viscous aging oil - Google Patents
Treatment method of viscous aging oil Download PDFInfo
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Abstract
The invention discloses a method for treating viscous aging oil, which specifically comprises the following steps: s1: pretreatment; s2: the furnace car enters the station and is connected with the pipeline; s3, heating to the optimal temperature range after laboratory screening; s4, adding a demulsifier, and continuously heating; s5, settling separation; the invention relates to the technical field of liquefied water treatment. The method for treating the viscous aging oil has wide application range, the boiler steam vehicle can reach any place with liquefied water, the action is convenient, and the defects of the existing heating technology at the bottom of the tank are avoided; the treatment efficiency is high, the traditional heating mode is low in temperature rise speed and needs long-time preparation, the method can heat the boiler only by putting the boiler car in place, and the temperature rise speed is high; the method is economical and environment-friendly, basically generates no harmful gas to the environment in the heating process, has better treatment effect on the liquefied water by combining with the demulsifier, and has high economic benefit when only a few hours are used from the beginning to the end of heating in the embodiment.
Description
Technical Field
The invention relates to the technical field of liquefied water treatment, in particular to a treatment method of viscous aging oil.
Background
The liquefied water generally comprises a plurality of substances such as complex emulsion, chemical agents, mud and sand, mechanical impurities, colloid asphaltene, inorganic salts, bacteria and the like. The existence of the liquefied water not only occupies a large amount of storage space, but also influences the production and capacity expansion of the oil field; the device can be corroded, and the service life of the device is reduced; but also causes environmental pollution due to improper treatment.
Currently, the mainstream liquefied water treatment technologies include the following technologies: the method comprises the steps of back mixing treatment, thermochemical treatment, ultrasonic treatment, microwave treatment, biological treatment, electric field treatment, centrifugal treatment and evaporation treatment, wherein single treatment technologies such as back mixing treatment, ultrasonic treatment, microwave treatment, electric field treatment and the like cannot effectively treat the liquefied water, and a plurality of methods are combined and are relatively complicated. The method realizes the aims of high efficiency, wide application range, economy and environmental protection, breaks the bottleneck of liquefied water treatment, and provides a new idea for the liquefied water dehydration treatment work in China.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for treating viscous aging oil, which utilizes a boiler car to directly heat and combines a steam method heating and a demulsifier method to treat liquefied water. The purposes of high efficiency, wide application range, economy and environmental protection are achieved.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a treatment method of viscous aging oil specifically comprises the following steps:
s1, testing the liquid level of the liquefied water, wherein the liquid level is 9-10m for the first time, and the liquid level is 6.5-7m after bottom water is discharged;
s2, driving the boiler car into the station, and then connecting the pipeline on the boiler car with an external heating device by a pipeline:
s3, starting a heating device, namely a boiler car, to start steam heating, so that the temperature of liquefied water in the boiler car is heated to 180 ℃ to form superheated steam;
s4, adding a pre-prepared demulsifier into the liquefied water obtained in the step S3, and stopping heating after continuously heating for 4-6 hours;
and S5, carrying out crude oil water content analysis on the same liquid level after keeping static settlement for 1-2h, wherein the band gap of an oil-water interface becomes narrow and the liquid level of water is continuously improved along with the increase of static settlement time.
Preferably, the heating device in step S2 is a high-pressure steam heater.
Preferably, the steam heating in step S4 includes the following specific steps:
t1, heating the liquefied water in the tank body of the boiler truck to 40-60 ℃;
and T2, filling steam into the tank, wherein the steam pressure is 0.1-0.3Mpa, the steam temperature is 100-180 ℃, the steam flow rate is 10-30m/s, stirring at the speed of 30-60r \minfor 10-15min, and then reducing the stirring speed to 20-30r \min.
Preferably, the raw materials of the demulsifier in step S3 comprise, by weight: 5-10 parts of polyoxypropylene, 5-10 parts of triethanolamine, 5-10 parts of acrylamide, 3-5 parts of sodium hydroxide, 3-5 parts of sodium phosphate, 10-20 parts of base oil, 5-10 parts of propylene oxide, 0.1-0.5 part of urea, 5-10 parts of ethylene oxide, 1-3 parts of pH regulator, 1-3 parts of initiator, 1-3 parts of surfactant and 5-10 parts of water.
Preferably, the base oil is one of castor oil, naphtha or tween.
Preferably, the initiator is prepared by mixing azodiisobutyronitrile, sodium thiosulfate and potassium peroxydisulfate.
Preferably, the surfactant is prepared by mixing acrylamide, sodium dodecyl benzene sulfonate, methyl methacrylate and hexadecyl trimethyl ammonium bromide.
Preferably, the PH regulator is glacial acetic acid.
(III) advantageous effects
The invention provides a method for treating viscous aging oil. Compared with the prior art, the method has the following beneficial effects:
(1) The processing method of the viscous aging oil is wide in application range, the boiler steam vehicle can reach any place with liquefied water, the action is convenient, the steam is directly injected by the steam boiler vehicle, the influence factor of the environment is small, the boiler vehicle is used for directly carrying out pipeline connection heating, the steam heating method and the demulsifier method are combined to process the liquefied water, and the processing effect is better. The method realizes the aims of high efficiency, economy and environmental protection, breaks the bottleneck of liquefied water treatment, and provides a new idea for the liquefied water dehydration treatment work in China.
(2) The treatment method of the viscous aging oil has high treatment efficiency, the traditional heating mode has low temperature rise speed, the field needs longer time for preparation, the method can heat as long as a boiler car is in place, the temperature rise speed is high, and the defects of the existing tank bottom heating technology are avoided.
(3) The treatment method of the viscous aging oil is economic and environment-friendly, and basically generates no harmful gas to the environment in the heating process; and from the embodiment, only a few hours are used from the beginning to the end of heating, so that the economic benefit is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view showing a change in liquid level in an application example of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the embodiment of the present invention provides five technical solutions: a treatment method of viscous aging oil specifically comprises the following embodiments:
example 1
The treatment method of the viscous aging oil comprises the following steps:
s1, testing the liquid level of the liquefied water, wherein the liquid level is 9.5m for the first time, and the liquid level is 6.8m after bottom water is discharged;
s2, in the boiler car driving station, the pipeline on the boiler car is connected with the external heating equipment through a pipeline, and the heating equipment is a high-pressure steam heater:
s3, starting heating equipment to perform steam heating on the liquefied water in the boiler car, so that the temperature of the liquefied water in the boiler car is heated to 180 ℃, and specifically performing the steam heating as follows:
t1, heating the liquefied water in the boiler truck tank body to 50 ℃;
t2, filling steam into the tank, wherein the steam pressure is 0.2Mpa, the steam temperature is 170 ℃, the steam flow rate is 20m/s, stirring at the speed of 50r \minfor 13min, and then reducing the stirring speed to 25r \min;
s4, adding a pre-prepared demulsifier into the liquefied water obtained in the step S3, continuously heating for 5 hours, and stopping heating, wherein the demulsifier comprises the following raw materials in parts by weight: 7 parts of polyoxypropylene, 7 parts of triethanolamine, 7 parts of acrylamide, 4 parts of sodium hydroxide, 4 parts of sodium phosphate, 15 parts of base oil, 7 parts of propylene oxide, 0.3 part of urea, 7 parts of ethylene oxide, 2 parts of a pH regulator, 2 parts of an initiator, 2 parts of a surfactant and 7 parts of water, wherein the base oil is castor oil, the initiator is prepared by mixing azodiisobutyronitrile, sodium thiosulfate and potassium peroxydisulfate, the surfactant is prepared by mixing acrylamide, sodium dodecyl benzene sulfonate, methyl methacrylate and hexadecyl trimethyl ammonium bromide, and the pH regulator is glacial acetic acid.
And S5, carrying out crude oil water content analysis on the same liquid level after keeping static settlement for 1.5h, wherein the band gap of an oil-water interface becomes narrow and the liquid level of water is continuously improved along with the increase of static settlement time.
Example 2
A treatment method of viscous aging oil specifically comprises the following steps:
s1, testing the liquid level of the liquefied water, wherein the liquid level is 9m for the first time, and the liquid level is 6.5m after bottom water is discharged;
s2, in the boiler car driving station, the pipeline on the boiler car is connected with the external heating equipment through a pipeline, and the heating equipment is a high-pressure steam heater:
s3, starting heating equipment to perform steam heating on the liquefied water in the boiler car, so that the temperature of the liquefied water in the boiler car is heated to 180 ℃, wherein the steam heating comprises the following specific steps:
t1, heating the liquefied water in the boiler truck tank body to 40 ℃;
t2, filling steam into the tank, wherein the steam pressure is 0.1Mpa, the steam temperature is 150 ℃, the steam flow rate is 10m/s, stirring at 30r \minfor 10min, and then reducing the stirring speed to 20r \min;
s4, adding a pre-prepared demulsifier into the liquefied water obtained in the step S3, and after continuously heating for 4 hours, stopping heating, wherein the demulsifier comprises the following raw materials in parts by weight: 5 parts of polyoxypropylene, 5 parts of triethanolamine, 5 parts of acrylamide, 3 parts of sodium hydroxide, 3 parts of sodium phosphate, 10 parts of base oil, 5 parts of propylene oxide, 0.1 part of urea, 5 parts of ethylene oxide, 1 part of a pH regulator, 1 part of an initiator, 1 part of a surfactant and 5 parts of water, wherein the base oil is naphtha, the initiator is prepared by mixing azodiisobutyronitrile, sodium thiosulfate and potassium peroxydisulfate, the surfactant is prepared by mixing acrylamide, sodium dodecyl benzene sulfonate, methyl methacrylate and hexadecyl trimethyl ammonium bromide, and the pH regulator is glacial acetic acid.
And S5, carrying out crude oil water content analysis on the same liquid level after keeping static settlement for 1 hour, wherein the band gap of an oil-water interface becomes narrow and the liquid level of water is continuously improved along with the increase of static settlement time.
Example 3
A treatment method of viscous aging oil specifically comprises the following steps:
s1, testing the liquid level of the liquefied water, wherein the liquid level is 10m for the first time, and the liquid level is 7m after bottom water is discharged;
s2, in the boiler car driving station, the pipeline on the boiler car is connected with the external heating equipment through a pipeline, and the heating equipment is a high-pressure steam heater:
s3, starting heating equipment to perform steam heating on the liquefied water in the boiler car, so that the temperature of the liquefied water in the boiler car is heated to 180 ℃, and specifically performing the steam heating as follows:
t1, heating the liquefied water in the tank body of the boiler truck to 60 ℃;
t2, filling steam into the tank, wherein the steam pressure is 0.3Mpa, the steam temperature is 180 ℃, the steam flow rate is 30m/s, stirring at the speed of 60r \minfor 15min, and then reducing the stirring speed to 30r \min;
s4, adding a pre-prepared demulsifier into the liquefied water obtained in the step S3, continuously heating for 6 hours, and stopping heating, wherein the demulsifier comprises the following raw materials in parts by weight: 10 parts of polyoxypropylene, 10 parts of triethanolamine, 10 parts of acrylamide, 5 parts of sodium hydroxide, 5 parts of sodium phosphate, 20 parts of base oil, 10 parts of propylene oxide, 0.5 part of urea, 10 parts of ethylene oxide, 3 parts of a pH regulator, 3 parts of an initiator, 3 parts of a surfactant and 10 parts of water, wherein the base oil is tween, the initiator is prepared by mixing azodiisobutyronitrile, sodium thiosulfate and potassium peroxydisulfate, the surfactant is prepared by mixing acrylamide, sodium dodecyl benzene sulfonate, methyl methacrylate and hexadecyl trimethyl ammonium bromide, and the pH regulator is glacial acetic acid.
And S5, carrying out crude oil water content analysis on the same liquid level after keeping static settlement for 1-2h, wherein the band gap of an oil-water interface becomes narrow and the liquid level of water is continuously improved along with the increase of static settlement time.
Example 4
A treatment method of viscous aging oil specifically comprises the following steps:
s1, testing the liquid level of the liquefied water, wherein the liquid level is 9.3m for the first time, and the liquid level is 6.6m after bottom water is discharged;
s2, in the boiler car driving station, the pipeline on the boiler car is connected with the external heating equipment through a pipeline, and the heating equipment is a high-pressure steam heater:
s3, starting heating equipment to perform steam heating on the liquefied water in the boiler car, so that the temperature of the liquefied water in the boiler car is heated to 180 ℃, wherein the steam heating comprises the following specific steps:
t1, heating the liquefied water in the boiler truck tank body to 45 ℃;
t2, filling steam into the tank, wherein the steam pressure is 0.15Mpa, the steam temperature is 160 ℃, the steam flow rate is 15m/s, stirring at the speed of 40r \minfor 12min, and then reducing the stirring speed to 23r \min;
s4, adding a pre-prepared demulsifier into the liquefied water obtained in the step S3, continuously heating for 4.5 hours, and stopping heating, wherein the demulsifier comprises the following raw materials in parts by weight: 6 parts of polyoxypropylene, 6 parts of triethanolamine, 6 parts of acrylamide, 3.5 parts of sodium hydroxide, 3.5 parts of sodium phosphate, 13 parts of base oil, 6 parts of propylene oxide, 0.2 part of urea, 6 parts of ethylene oxide, 1.5 parts of a pH regulator, 1.5 parts of an initiator, 1.5 parts of a surfactant and 6 parts of water, wherein the base oil is castor oil, the initiator is prepared by mixing azodiisobutyronitrile, sodium thiosulfate and potassium peroxydisulfate, the surfactant is prepared by mixing acrylamide, sodium dodecyl benzene sulfonate, methyl methacrylate and hexadecyl trimethyl ammonium bromide, and the pH regulator is glacial acetic acid.
And S5, carrying out crude oil water content analysis on the same liquid level after keeping static settlement for 1.25h, wherein the band gap of an oil-water interface becomes narrow and the liquid level of water is continuously improved along with the increase of static settlement time.
Example 5
A treatment method of viscous aging oil specifically comprises the following steps:
s1, testing the liquid level of the liquefied water, wherein the liquid level is 9.8m for the first time, and the liquid level is 6.9m after bottom water is discharged;
s2, in the boiler car driving station, the pipeline on the boiler car is connected with the external heating equipment through a pipeline, and the heating equipment is a high-pressure steam heater:
s3, starting heating equipment to perform steam heating on the liquefied water in the boiler car, so that the temperature of the liquefied water in the boiler car is heated to 180 ℃, and specifically performing the steam heating as follows:
t1, heating the liquefied water in the tank body of the boiler truck to 55 ℃;
t2, filling steam into the tank, wherein the steam pressure is 0.25Mpa, the steam temperature is 180 ℃, the steam flow rate is 25m/s, stirring at the speed of 55r \minfor 14min, and then reducing the stirring speed to 28r \min;
s4, adding a pre-prepared demulsifier into the liquefied water obtained in the step S3, continuously heating for 5.5 hours, and stopping heating, wherein the demulsifier comprises the following raw materials in parts by weight: 8 parts of polyoxypropylene, 8 parts of triethanolamine, 8 parts of acrylamide, 4.5 parts of sodium hydroxide, 4.5 parts of sodium phosphate, 18 parts of base oil, 8 parts of propylene oxide, 0.4 part of urea, 8 parts of ethylene oxide, 2.5 parts of a pH regulator, 2.5 parts of an initiator, 2.5 parts of a surfactant and 8 parts of water, wherein the base oil is naphtha, the initiator is prepared by mixing azodiisobutyronitrile, sodium thiosulfate and potassium peroxydisulfate, the surfactant is prepared by mixing acrylamide, sodium dodecyl benzene sulfonate, methyl methacrylate and hexadecyl trimethyl ammonium bromide, and the pH regulator is glacial acetic acid.
And S5, carrying out crude oil water content analysis on the same liquid level after keeping static settlement for 1-2h, wherein the band gap of an oil-water interface becomes narrow and the liquid level of water is continuously improved along with the increase of static settlement time.
Examples of the applications
The problem that the liquefied water cannot be dehydrated in the Jingbigang station is researched by a method for heating the liquefied water by a steam method, the liquefied water is firstly researched in a laboratory, the optimal time and temperature are selected, then, a No. 3 tank on the spot is sampled and data are collected, as shown in figure 2, the analysis on the water content of crude oil is carried out on the same liquid level, and along with the increase of the static settling time, the band gap of an interface of oil and water is narrowed, and the liquid level of the water is continuously improved. When the crude oil contains water for the last sampling, the water content of the crude oil at the highest position of the liquid level is 0.24 percent and reaches 0.5 percent of national standard, and the specific data is shown in table 1. The method has the advantages of high dehydration rate of the liquefied water, high efficiency and wide application range, can be used in any place with the liquefied water, solves the difficult problem of difficult treatment of the liquefied water, and has considerable contribution to the environment and the economy.
TABLE 1 crude oil Water content at different sampling times
In conclusion, the invention has wide application range, the boiler steam vehicle can reach any place with liquefied water, the action is convenient, the steam is directly injected by the steam boiler vehicle, the influence factor of the environment is small, the boiler vehicle is directly used for pipeline connection heating, the liquefied water is treated by combining the steam method heating and the demulsifier method, the defects of the existing heating technology at the tank bottom are avoided, and the liquefied water treatment effect is better by combining the demulsifier. The method has the advantages that the purposes of high efficiency, economy and environmental protection are realized, the bottleneck of liquefied water treatment is broken through, a new thought is provided for the dehydration treatment work of liquefied water in China, the treatment efficiency is high, the temperature rise speed of the traditional heating mode is low, the field needs longer time for preparation, the method can carry out heating as long as a boiler car is in place, the temperature rise speed is high, economy and environmental protection are realized, and harmful gas to the environment is not generated basically in the heating process; and from the embodiment, only a few hours are used from the beginning to the end of heating, so that the economic benefit is high.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A treatment method of viscous aging oil is characterized in that: the method specifically comprises the following steps:
s1, testing the liquid level of the liquefied water, wherein the liquid level is 9-10m for the first time, and the liquid level is 6.5-7m after bottom water is discharged;
s2, driving the boiler car into the station, and then connecting the pipeline on the boiler car with the external heating equipment through a pipeline:
s3, starting a heating device, namely a boiler car, to heat steam, so that the temperature of liquefied water in the boiler car is heated to 180 ℃ to form superheated steam;
s4, adding a pre-prepared demulsifier into the liquefied water obtained in the step S3, and stopping heating after continuously heating for 4-6 hours;
and S5, carrying out crude oil water content analysis on the same liquid level after keeping static settlement for 1-2h, wherein the band gap of an oil-water interface becomes narrow and the liquid level of water is continuously improved along with the increase of static settlement time.
2. The method for treating viscous aging oil according to claim 1, wherein the method comprises the following steps: the heating device in the step S2 is a high-pressure steam heater.
3. The method for treating viscous aging oil according to claim 1, wherein the method comprises the following steps: the specific steps of steam heating in step S3 are as follows:
t1, heating the liquefied water in the tank body of the boiler truck to 40-60 ℃;
and T2, filling steam into the tank, wherein the steam pressure is 0.1-0.3Mpa, the steam temperature is 100-180 ℃, the steam flow rate is 10-30m/s, stirring at the speed of 30-60r \minfor 10-15min, and then reducing the stirring speed to 20-30r \min.
4. The method for treating viscous aging oil according to claim 1, wherein the method comprises the following steps: the demulsifier in the step S4 comprises the following raw materials in parts by weight: 5-10 parts of polyoxypropylene, 5-10 parts of triethanolamine, 5-10 parts of acrylamide, 3-5 parts of sodium hydroxide, 3-5 parts of sodium phosphate, 10-20 parts of base oil, 5-10 parts of propylene oxide, 0.1-0.5 part of urea, 5-10 parts of ethylene oxide, 1-3 parts of pH regulator, 1-3 parts of initiator, 1-3 parts of surfactant and 5-10 parts of water.
5. The method for treating viscous aging oil of claim 4, wherein: the base oil is one of castor oil, naphtha or tween.
6. The method for treating viscous aging oil of claim 4, wherein: the initiator is prepared by mixing azodiisobutyronitrile, sodium thiosulfate and potassium peroxydisulfate.
7. The method for treating viscous aging oil of claim 4, wherein: the surfactant is prepared by mixing acrylamide, sodium dodecyl benzene sulfonate, methyl methacrylate and hexadecyl trimethyl ammonium bromide.
8. The method for treating viscous aging oil of claim 4, wherein: the pH regulator is glacial acetic acid.
Priority Applications (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993716A (en) * | 2009-08-11 | 2011-03-30 | 朱晓芳 | New process and equipment for dehydrating viscous oil |
| CN103013557A (en) * | 2012-12-27 | 2013-04-03 | 北京惠博普能源技术有限责任公司 | Aged effluent oil treatment technology used for oil fields and oil refineries |
| CN105585070A (en) * | 2016-03-01 | 2016-05-18 | 云南圣清环保科技有限公司 | Emulsion breaker |
| CN105950212A (en) * | 2016-06-24 | 2016-09-21 | 天博蓝创（天津）科技有限公司 | Aged sump oil treatment process |
| CN106221731A (en) * | 2016-08-30 | 2016-12-14 | 江苏三和环保集团有限公司 | A kind of demulsifier |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993716A (en) * | 2009-08-11 | 2011-03-30 | 朱晓芳 | New process and equipment for dehydrating viscous oil |
| CN103013557A (en) * | 2012-12-27 | 2013-04-03 | 北京惠博普能源技术有限责任公司 | Aged effluent oil treatment technology used for oil fields and oil refineries |
| CN105585070A (en) * | 2016-03-01 | 2016-05-18 | 云南圣清环保科技有限公司 | Emulsion breaker |
| CN105950212A (en) * | 2016-06-24 | 2016-09-21 | 天博蓝创（天津）科技有限公司 | Aged sump oil treatment process |
| CN106221731A (en) * | 2016-08-30 | 2016-12-14 | 江苏三和环保集团有限公司 | A kind of demulsifier |
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