CN107723145B - Cleaning agent for high-wax crude oil volume pipe, preparation method and use method - Google Patents
Cleaning agent for high-wax crude oil volume pipe, preparation method and use method Download PDFInfo
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- CN107723145B CN107723145B CN201710967080.1A CN201710967080A CN107723145B CN 107723145 B CN107723145 B CN 107723145B CN 201710967080 A CN201710967080 A CN 201710967080A CN 107723145 B CN107723145 B CN 107723145B
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- 239000012459 cleaning agent Substances 0.000 title claims abstract description 27
- 239000010779 crude oil Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 41
- 239000006184 cosolvent Substances 0.000 claims abstract description 25
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 25
- 239000004094 surface-active agent Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims description 50
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 48
- 239000003921 oil Substances 0.000 claims description 38
- 238000003756 stirring Methods 0.000 claims description 33
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 32
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 32
- 238000004140 cleaning Methods 0.000 claims description 24
- 239000003208 petroleum Substances 0.000 claims description 24
- -1 sorbitan fatty acid ester Chemical class 0.000 claims description 24
- 238000002156 mixing Methods 0.000 claims description 18
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 claims description 16
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 16
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 16
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 16
- 239000002283 diesel fuel Substances 0.000 claims description 16
- 239000012046 mixed solvent Substances 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 16
- 239000008096 xylene Substances 0.000 claims description 16
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 8
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 8
- 239000000194 fatty acid Substances 0.000 claims description 8
- 229930195729 fatty acid Natural products 0.000 claims description 8
- 150000002191 fatty alcohols Chemical class 0.000 claims description 8
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 8
- 229920002401 polyacrylamide Polymers 0.000 claims description 8
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 8
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 8
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 claims description 8
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 8
- 229920000053 polysorbate 80 Polymers 0.000 claims description 8
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 3
- 239000001993 wax Substances 0.000 abstract description 32
- 239000012188 paraffin wax Substances 0.000 abstract description 24
- 239000000839 emulsion Substances 0.000 abstract description 14
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 239000000460 chlorine Substances 0.000 abstract description 3
- 229910052801 chlorine Inorganic materials 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 241001453445 Acalypha rhomboidea Species 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011086 high cleaning Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
- C11D1/831—Mixtures of non-ionic with anionic compounds of sulfonates with ethers of polyoxyalkylenes without phosphates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/18—Hydrocarbons
- C11D3/187—Hydrocarbons aromatic
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/201—Monohydric alcohols linear
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2068—Ethers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3707—Polyethers, e.g. polyalkyleneoxides
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3773—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines in liquid compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/667—Neutral esters, e.g. sorbitan esters
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Mechanical Engineering (AREA)
- Detergent Compositions (AREA)
Abstract
The invention provides a cleaning agent for a high-wax crude oil volume pipe, a preparation method and a use method, and belongs to the technical field of paraffin removal. The technical scheme is as follows: the composite material consists of the following components in volume fraction: 10-20 parts of solvent, 4-10 parts of cosolvent, 2-8 parts of surfactant, 2-8 parts of emulsifier and 50-90 parts of water. Methods of preparation and use are also provided. The invention has the beneficial effects that: the emulsion type cleaning agent obtained by the invention has the wax dissolving rate of more than 0.4g/min, the closed flash point of more than 25 ℃, no organic chlorine and carbon disulfide, can effectively clean wax deposition of the volume pipe, has the characteristics of safety and good stability, and is particularly suitable for wax removal treatment of the volume pipe of high-wax crude oil.
Description
Technical Field
The invention relates to a cleaning agent, in particular to a cleaning agent for a high-wax crude oil volume pipe, a preparation method and a use method.
Background
At present, 40 sets of existing petrochemical volume pipe standard devices and 8 sets of volume pipes used in a victory oil field are used, and 3 sets of investment and construction of three oil production plants are planned, and the three sets of volume pipes need to be cleaned and calibrated at least once every 3 years. The cleaning effect of the existing cleaning agent is not ideal, the one-time verification qualification rate is only 50%, and the cleaning time is about 10 days.
In recent years, the physical properties of crude oil in various oil fields are greatly different, the proportion of heavy oil is increased year by year, the contents of wax, colloid and asphaltene are increased, the mineralization degrees of produced water in the oil fields are also greatly different, and the causes of wax deposition and scaling on the inner wall of a volume pipe are different. The traditional cleaning method is not adopted, so that the cleaning efficiency and the cleaning degree cannot be improved.
The victory oil zone has rich high-wax crude oil reserves, the higher the wax content of the crude oil is, the larger the proportion of microcrystalline wax is, the higher the carbon number distribution of the wax is, the more concentrated the distribution is, the larger the viscosity of the crude oil is, and the poorer the sensitivity to a paraffin remover is. The high-wax crude oil wax layer is difficult to remove like a common wax layer, so that the invention aims to remove the volume pipe of the high-wax crude oil wax layer in a targeted manner.
Disclosure of Invention
The invention aims to provide a cleaning agent for a high-wax crude oil volume pipe, a preparation method and a use method.
In order to achieve the above object, the present invention is realized by the following measures: a cleaning agent for a high-wax crude oil volume pipe is composed of the following components in volume fraction: 10-20 parts of solvent, 4-10 parts of cosolvent, 2-8 parts of surfactant, 2-8 parts of emulsifier and 50-90 parts of water.
The solvent is a mixed solvent of toluene, xylene, 120# solvent oil and diesel oil, wherein the volume fraction of each component in the mixed solvent is as follows: 5-8 parts of toluene, 10-15 parts of xylene, 3-5 parts of 120# solvent oil and 10-25 parts of diesel oil.
Wherein the cosolvent is a mixture of diethylene glycol butyl ether, ethylene glycol butyl ether, petroleum ether and isopropanol; the volume fractions of the components in the mixture are as follows: 10-20 parts of diethylene glycol butyl ether, 5-8 parts of ethylene glycol butyl ether, 3-5 parts of petroleum ether and 8-12 parts of isopropanol.
The surfactant is prepared by mixing petroleum sulfonate, sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether and polyoxyethylene sorbitan monooleate, wherein the volume fraction ratio of the substances is as follows: 1-2:0.5-1:0.2-0.4:1-2.
The emulsifier is prepared by mixing alkylphenol polyoxyethylene, polyacrylamide and nonylphenol polyoxyethylene, wherein the volume fraction ratio of the substances is 1-2:0.5-0.8: 1.5-3.
In addition, the invention provides a preparation method of the cleaning agent for the high-wax crude oil volume pipe, wherein the preparation method comprises the following steps:
1) at normal temperature, adding the surfactant and the emulsifier into water according to a proportion, and stirring at the speed of 250-300r/min for 10-15min to obtain a mixture A;
2) adding the cosolvent into the mixture A in proportion and uniformly stirring to obtain a mixture B;
3) and slowly adding the solvent into the mixture B under the stirring condition, and stirring uniformly to obtain the emulsion type paraffin remover.
In addition, the invention also provides a using method of the volume tube cleaning agent, the volume tube is continuously washed for 5 hours by hot water with the temperature of 50-60 ℃, then the cleaning agent is prepared into cleaning liquid with the volume concentration of 10% to continuously clean the volume tube for 5 days, and finally the same hot water is used for washing for 2 hours.
The invention has the beneficial effects that: the emulsion type cleaning agent has the wax dissolving rate of over 0.4g/min, the closed flash point of over 25 ℃, no organic chlorine and carbon disulfide, can effectively clean wax deposition of a volume tube, and has the characteristics of safety, environmental protection and good stability; the invention has the advantages of low cleaning temperature, small using concentration, short cleaning time, high cleaning efficiency and low price; the effect of the method is far superior to that of a common paraffin removal agent in the treatment effects of island crude oil, island oil extraction plant combination station mixed oil transportation and Dongying oil depot mixed oil transportation.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
The invention is realized by the following measures: a cleaning agent for a high-wax crude oil volume pipe is composed of the following components in volume fraction: 10-20 parts of solvent, 4-10 parts of cosolvent, 2-8 parts of surfactant, 2-8 parts of emulsifier and 50-90 parts of water.
The solvent is a mixed solvent of toluene, xylene, 120# solvent oil and diesel oil, wherein the volume fraction of each component in the mixed solvent is as follows: 5-8 parts of toluene, 10-15 parts of xylene, 3-5 parts of 120# solvent oil and 10-25 parts of diesel oil.
Wherein the cosolvent is a mixture of diethylene glycol butyl ether, ethylene glycol butyl ether, petroleum ether and isopropanol; the volume fractions of the components in the mixture are as follows: 10-20 parts of diethylene glycol butyl ether, 5-8 parts of ethylene glycol butyl ether, 3-5 parts of petroleum ether and 8-12 parts of isopropanol.
The surfactant is prepared by mixing petroleum sulfonate, sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether and polyoxyethylene sorbitan monooleate, wherein the volume fraction ratio of the substances is as follows: 1-2:0.5-1:0.2-0.4:1-2.
The emulsifier is prepared by mixing alkylphenol polyoxyethylene, polyacrylamide and nonylphenol polyoxyethylene, wherein the volume fraction ratio of the substances is 1-2:0.5-0.8: 1.5-3.
In addition, the invention provides a preparation method of the volume tube cleaning agent, wherein the preparation method comprises the following steps:
1) at normal temperature, adding the surfactant and the emulsifier into water according to a proportion, and stirring at the speed of 250-300r/min for 10-15min to obtain a mixture A;
2) adding the cosolvent into the mixture A in proportion and uniformly stirring to obtain a mixture B;
3) and slowly adding the solvent into the mixture B under the stirring condition, and stirring uniformly to obtain the emulsion type paraffin remover.
The present invention is further illustrated by the following examples, which are not intended to limit the invention in any way.
Example 1
The embodiment discloses a cleaning agent for a high-wax crude oil volume pipe, which consists of the following components in percentage by weight: 10 parts of solvent, 4 parts of cosolvent, 2 parts of surfactant, 2 parts of emulsifier and 50 parts of water.
The solvent is a mixed solvent of toluene, xylene, 120# solvent oil and diesel oil, wherein the volume fraction of each component in the mixed solvent is as follows: 5 parts of toluene, 10 parts of xylene, 3 parts of 120# solvent oil and 10 parts of diesel oil.
Wherein the cosolvent is a mixture of diethylene glycol butyl ether, ethylene glycol butyl ether, petroleum ether and isopropanol; the volume fractions of the components in the mixture are as follows: 10 parts of diethylene glycol butyl ether, 5 parts of ethylene glycol butyl ether, 3 parts of petroleum ether and 8 parts of isopropanol.
The surfactant is prepared by mixing petroleum sulfonate, sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether and polyoxyethylene sorbitan monooleate, wherein the volume fraction ratio of the substances is as follows: 1:0.5:0.2:1.
The emulsifier is prepared by mixing alkylphenol polyoxyethylene, polyacrylamide and nonylphenol polyoxyethylene, wherein the volume fraction ratio of the substances is 1:0.5: 1.5.
The preparation method comprises the following steps:
1) adding a surfactant and an emulsifier into water according to a ratio at normal temperature, and stirring at a speed of 250r/min for 10min to obtain a mixture A;
2) adding the cosolvent into the mixture A in proportion and uniformly stirring to obtain a mixture B;
3) and slowly adding the solvent into the mixture B under the stirring condition, and stirring uniformly to obtain the emulsion type paraffin remover.
Example 2
The invention is realized by the following measures: a cleaning agent for a high-wax crude oil volume pipe comprises the following components: 20 parts of solvent, 10 parts of cosolvent, 8 parts of surfactant, 8 parts of emulsifier and 90 parts of water.
The solvent is a mixed solvent of toluene, xylene, 120# solvent oil and diesel oil, wherein the volume fraction of each component in the mixed solvent is as follows: 8 parts of toluene, 15 parts of xylene, 5 parts of 120# solvent oil and 12 parts of diesel oil.
Wherein the cosolvent is a mixture of diethylene glycol butyl ether, ethylene glycol butyl ether, petroleum ether and isopropanol; the volume fractions of the components in the mixture are as follows: 20 parts of diethylene glycol butyl ether, 8 parts of ethylene glycol butyl ether, 5 parts of petroleum ether and 12 parts of isopropanol.
The surfactant is prepared by mixing petroleum sulfonate, sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether and polyoxyethylene sorbitan monooleate, wherein the volume fraction ratio of the substances is as follows: 2:1:0.4:2.
The emulsifier is prepared by mixing alkylphenol polyoxyethylene, polyacrylamide and nonylphenol polyoxyethylene, wherein the volume fraction ratio of the substances is 2:0.8: 3.
The preparation method comprises the following steps:
1) adding a surfactant and an emulsifier into water according to a proportion at normal temperature, and stirring at a speed of 300r/min for 15min to obtain a mixture A;
2) adding the cosolvent into the mixture A in proportion and uniformly stirring to obtain a mixture B;
3) and slowly adding the solvent into the mixture B under the stirring condition, and stirring uniformly to obtain the emulsion type paraffin remover.
Example 3
The invention is realized by the following measures: a cleaning agent for a high-wax crude oil volume pipe comprises the following components: 15 parts of solvent, 5 parts of cosolvent, 5 parts of surfactant, 6 parts of emulsifier and 80 parts of water.
The solvent is a mixed solvent of toluene, xylene, 120# solvent oil and diesel oil, wherein the volume fraction of each component in the mixed solvent is as follows: 6 parts of toluene, 12 parts of xylene, 4 parts of 120# solvent oil and 15 parts of diesel oil.
Wherein the cosolvent is a mixture of diethylene glycol butyl ether, ethylene glycol butyl ether, petroleum ether and isopropanol; the volume fractions of the components in the mixture are as follows: 15 parts of diethylene glycol butyl ether, 6 parts of ethylene glycol butyl ether, 4 parts of petroleum ether and 10 parts of isopropanol.
The surfactant is prepared by mixing petroleum sulfonate, sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether and polyoxyethylene sorbitan monooleate, wherein the volume fraction ratio of the substances is as follows: 1: 1:0.3:1.5.
The emulsifier is prepared by mixing alkylphenol polyoxyethylene, polyacrylamide and nonylphenol polyoxyethylene, wherein the volume fraction ratio of the substances is 1:0.6: 2.
The preparation method comprises the following steps:
1) adding a surfactant and an emulsifier into water according to a proportion at normal temperature, and stirring at a speed of 300r/min for 15min to obtain a mixture A;
2) adding the cosolvent into the mixture A in proportion and uniformly stirring to obtain a mixture B;
3) and slowly adding the solvent into the mixture B under the stirring condition, and stirring uniformly to obtain the emulsion type paraffin remover.
Example 4
The invention is realized by the following measures: a cleaning agent for a high-wax crude oil volume pipe comprises the following components: 15 parts of solvent, 6 parts of cosolvent, 5 parts of surfactant, 6 parts of emulsifier and 80 parts of water.
The solvent is a mixed solvent of toluene, xylene, 120# solvent oil and diesel oil, wherein the volume fraction of each component in the mixed solvent is as follows: 6 parts of toluene, 12 parts of xylene, 4 parts of 120# solvent oil and 10 parts of diesel oil.
Wherein the cosolvent is a mixture of diethylene glycol butyl ether, ethylene glycol butyl ether, petroleum ether and isopropanol; the volume fractions of the components in the mixture are as follows: 15 parts of diethylene glycol butyl ether, 6 parts of ethylene glycol butyl ether, 4 parts of petroleum ether and 10 parts of isopropanol.
The surfactant is prepared by mixing petroleum sulfonate, sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether and polyoxyethylene sorbitan monooleate, wherein the volume fraction ratio of the substances is as follows: 2:1: 0.4:1.
The emulsifier is prepared by mixing alkylphenol polyoxyethylene, polyacrylamide and nonylphenol polyoxyethylene, wherein the volume fraction ratio of the substances is 1:0.5: 2.
The preparation method comprises the following steps:
1) adding a surfactant and an emulsifier into water according to a proportion at normal temperature, and stirring at a speed of 300r/min for 15min to obtain a mixture A;
2) adding the cosolvent into the mixture A in proportion and uniformly stirring to obtain a mixture B;
3) and slowly adding the solvent into the mixture B under the stirring condition, and stirring uniformly to obtain the emulsion type paraffin remover.
Example 5
The invention is realized by the following measures: a cleaning agent for a high-wax crude oil volume pipe comprises the following components: 10 parts of solvent, 4 parts of cosolvent, 2 parts of surfactant, 4 parts of emulsifier and 80 parts of water.
The solvent is a mixed solvent of toluene, xylene, 120# solvent oil and diesel oil, wherein the volume fraction of each component in the mixed solvent is as follows: 5 parts of toluene, 10 parts of xylene, 3 parts of 120# solvent oil and 15 parts of diesel oil.
Wherein the cosolvent is a mixture of diethylene glycol butyl ether, ethylene glycol butyl ether, petroleum ether and isopropanol; the volume fractions of the components in the mixture are as follows: 15 parts of diethylene glycol butyl ether, 6 parts of ethylene glycol butyl ether, 5 parts of petroleum ether and 10 parts of isopropanol.
The surfactant is prepared by mixing petroleum sulfonate, sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether and polyoxyethylene sorbitan monooleate, wherein the volume fraction ratio of the substances is as follows: 1:0.5:0.2:2.
The emulsifier is prepared by mixing alkylphenol polyoxyethylene, polyacrylamide and nonylphenol polyoxyethylene, wherein the volume fraction ratio of the substances is 1:0.5: 2.
In addition, the invention provides a preparation method of the volume tube cleaning agent, wherein the preparation method comprises the following steps:
1) adding a surfactant and an emulsifier into water according to a proportion at normal temperature, and stirring at a speed of 300r/min for 15min to obtain a mixture A;
2) adding the cosolvent into the mixture A in proportion and uniformly stirring to obtain a mixture B;
3) and slowly adding the solvent into the mixture B under the stirring condition, and stirring uniformly to obtain the emulsion type paraffin remover.
Experiment one
(1) Melting paraffin, pouring into a mold, making paraffin into wax balls with substantially the same quality and shape, and taking out
Weigh to the nearest 0.0001 g.
(2) Controlling the temperature of the constant-temperature water bath kettle to be 65 +/-1 ℃, and adding 15mL of the constant-temperature water bath kettle into a wax dissolving test device
And (4) putting the paraffin remover into a water bath kettle. After the paraffin remover in the paraffin dissolving test device is kept at a constant temperature, the prepared paraffin ball is immersed, the time for dissolving the paraffin ball is observed and recorded, the time is accurate to 0.1min, and the paraffin dissolving rate is calculated according to the following formula:
r =m/t
wherein r is the wax-dissolving rate in g/min
m-wax ball mass in g
t-time required for complete dissolution of wax balls, and unit is min
The performance of the cleaning agents selected in examples 1 to 5 was examined to obtain Table 1
TABLE 1
| Group of | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Appearance of the product | White emulsion | White emulsion | White emulsion | White emulsion | White emulsion |
| Smell(s) | Light and slight | Light and slight | Light and slight | Light and slight | Light and slight |
| Wax dissolving rate g/min | 0.4085 | 0.4092 | 0.4101 | 0.4150 | 0.4253 |
| Content of organic chlorine | Is free of | Is free of | Is free of | Is free of | Is free of |
| Carbon disulfide content | Is free of | Is free of | Is free of | Is free of | Is free of |
| Flash point/deg.C | 26 | 26 | 26 | 26.5 | 27 |
| Stability of | No demixing in 50 days | No demixing in 50 days | No demixing in 50 days | No demixing in 50 days | No demixing in 50 days |
| Precision/% | 0.03 | 0.03 | 0.03 | 0.028 | 0.025 |
Experiment two
The dried drum was weighed W0. Immersing the mixture in crude oil at 60 deg.C, stirring at 400r/min for 10min, lifting and standing for 30min, and weighing W1. Then, the mixture was immersed in a paraffin remover at 60 ℃ and stirred at the same speed for 10 minutes, and then lifted and left to stand for 10 minutes, and W2 was weighed.
The cleaning effect is evaluated by a weight loss method, and the formula is as follows:
X=（W1-W2）/（W1-W0）x 100%
wherein X-cleaning efficiency%
W0-Mass of drying Drum, g
W1-weight of Drum after immersion in oil, g
W2-mass of drum after cleaning with wax remover, g
The cleaning agents obtained in examples 1 to 5 were selected and compared with a conventional paraffin remover. And selecting island crude oil, island oil extraction plant combined station mixed oil transportation and Dongying oil depot mixed oil transportation, and performing experimental comparison of paraffin removal efficiency. Table 2 shows island crude oil groups, table 3 shows oil blending and transportation in a united station of an island oil production plant, and table 4 shows oil blending and transportation in a eastern oil depot. The comparative results are as follows:
TABLE 2
| Group of | Control group | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Concentration/%) | 12 | 10 | 10 | 10 | 10 | 10 |
| Cleaning temperature/. degree.C | 65 | 60 | 60 | 60 | 59.8 | 59.5 |
| Cleaning time/min | 15 | 10 | 10 | 10 | 10 | 10 |
| Cleaning efficiency/%) | 79.59 | 86.25 | 86.40 | 86.30 | 89.20 | 90.50 |
| Corrosiveness of | Light and slight | Is free of | Is free of | Is free of | Is free of | Is free of |
| Cost per ton | 8000 | 7200 | 7189 | 7176 | 7185 | 7171 |
TABLE 3
| Group of | Control group | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Concentration/%) | 12 | 10 | 10 | 10 | 10 | 10 |
| Cleaning temperature/. degree.C | 65 | 60 | 60 | 60 | 59.8 | 59.5 |
| Cleaning time/min | 15 | 10 | 10 | 10 | 10 | 10 |
| Cleaning efficiency/%) | 79.63 | 86.34 | 86.26 | 86.15 | 89.50 | 90.10 |
| Corrosiveness of | Light and slight | Is free of | Is free of | Is free of | Is free of | Is free of |
| Cost per ton | 8000 | 7200 | 7189 | 7176 | 7185 | 7171 |
TABLE 4
| Group of | Control group | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Concentration/%) | 12 | 10 | 10 | 10 | 10 | 10 |
| Cleaning temperature/. degree.C | 65 | 60 | 60 | 60 | 59.8 | 59.5 |
| Cleaning time/min | 15 | 10 | 10 | 10 | 10 | 10 |
| Cleaning efficiency/%) | 79.64 | 86.36 | 86.50 | 86.78 | 89.90 | 90.40 |
| Corrosiveness of | Light and slight | Is free of | Is free of | Is free of | Is free of | Is free of |
| Cost per ton | 8000 | 7200 | 7189 | 7176 | 7185 | 7171 |
As can be seen from tables 2-4, compared with the conventional paraffin remover, the paraffin remover has the advantages of low cleaning temperature, small use concentration, short cleaning time, high cleaning efficiency and low price. The effect of the method is far superior to that of a common paraffin removal agent in the treatment effects of island crude oil, island oil extraction plant combination station mixed oil transportation and Dongying oil depot mixed oil transportation.
The technical features of the present invention which are not described in the above embodiments may be implemented by or using the prior art, and are not described herein again, of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions which may be made by those skilled in the art within the spirit and scope of the present invention should also fall within the protection scope of the present invention.
Claims (1)
1. A method for cleaning a high wax crude oil volume pipe is characterized by comprising the following steps:
continuously washing the volume pipe for 5 hours by using hot water at the temperature of 50-60 ℃, preparing a cleaning agent into a cleaning solution with the volume concentration of 10% to continuously clean the volume pipe for 5 days, and finally washing the volume pipe for 2 hours by using the same hot water;
the cleaning agent comprises the following components in volume fraction: 10-20 parts of solvent, 4-10 parts of cosolvent, 2-8 parts of surfactant, 2-8 parts of emulsifier and 50-90 parts of water;
the solvent is a mixed solvent of toluene, xylene, 120# solvent oil and diesel oil, wherein the volume fraction of each component in the mixed solvent is as follows: 5-8 parts of toluene, 10-15 parts of xylene, 3-5 parts of 120# solvent oil and 10-25 parts of diesel oil;
the cosolvent is a mixture of diethylene glycol butyl ether, ethylene glycol butyl ether, petroleum ether and isopropanol; the volume fractions of the components in the mixture are as follows: 10-20 parts of diethylene glycol butyl ether, 5-8 parts of ethylene glycol butyl ether, 3-5 parts of petroleum ether and 8-12 parts of isopropanol;
the surfactant is formed by mixing petroleum sulfonate, sorbitan fatty acid ester, fatty alcohol polyoxyethylene ether and polyoxyethylene sorbitan monooleate, wherein the volume fraction ratio of the substances is as follows: 1-2:0.5-1:0.2-0.4: 1-2;
the emulsifier is formed by mixing alkylphenol polyoxyethylene, polyacrylamide and nonylphenol polyoxyethylene, wherein the volume fraction ratio of the substances is 1-2:0.5-0.8: 1.5-3;
the preparation method of the cleaning agent comprises the following steps:
1) at normal temperature, adding the surfactant and the emulsifier into water according to a proportion, and stirring at the speed of 250-300r/min for 10-15min to obtain a mixture A;
2) adding the cosolvent into the mixture A in proportion and uniformly stirring to obtain a mixture B;
3) and slowly adding the solvent into the mixture B under the stirring condition, and stirring uniformly to obtain the cleaning agent.
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| CN109439460B (en) * | 2018-11-29 | 2020-09-08 | 广州市德馨蜡制品有限公司 | Wax remover, preparation method thereof and wax removing method |
| CN109536147A (en) * | 2018-12-05 | 2019-03-29 | 江苏华扬液碳有限责任公司 | A kind of oil well efficient, emulsion-type paraffin remover of safety and preparation method thereof |
| CN109967467A (en) * | 2019-03-04 | 2019-07-05 | 扬州中天利新材料股份有限公司 | The Hand scarf method of tank body oil-soluble deposition oil |
| CN111286413B (en) * | 2020-03-04 | 2021-08-06 | 沈阳博美特环保科技有限公司 | Cleaning agent for charged maintenance and use method thereof |
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