CN101948683A - Methylnaphthalene liquid-containing crude oil pour-point and viscosity reducer - Google Patents
Methylnaphthalene liquid-containing crude oil pour-point and viscosity reducer Download PDFInfo
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Abstract
The invention discloses a methylnaphthalene liquid-containing crude oil pour-point and viscosity reducer, which is one or a mixture of two or more of the following methylnaphthalene liquid in any proportion: 1) fusel oil liquid with the methylnaphthalene content of lower than 50 percent; 2) special organic solvent liquid with the methylnaphthalene content of lower than 50 percent; 3) organic solvent liquid with the methylnaphthalene content of lower than 50 percent; 4) methylnaphthalene-containing organic liquid; 5) methylnaphthalene liquid in the liquid state at the temperature of below 50 DEG C; 6) methylnaphthalene and polycyclic aromatic hydrocarbon mixed liquid in the liquid state at the temperature of below 100 DEG C; 7) methylnaphthalene and polycyclic aromatic hydrocarbon derivative mixed liquid in the liquid state at the temperature of below 100 DEG C; 8) methylnaphthalene and biphenyl mixed liquid in the liquid state at the temperature of below 100 DEG C; 9) methylnaphthalene and petroleum resin mixed liquid in the liquid state at the temperature of below 100 DEG C; and 10) methylnaphthalene-containing carbolic oil, naphthalene oil or coal tar liquid. The methylnaphthalene liquid-containing crude oil pour-point and viscosity reducer can effectively reduce the pour point and the viscosity of the crude oil, and can greatly reduce the cost of the exploitation, production, storage and transport of thick oil and high pour-point oil.
Description
Technical field
The present invention relates to methylnaphthalene and methylnaphthalene liquid Application Areas, especially relate to a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid.
Background technology
At present, in crude production, inevitably exploitation, production, accumulating viscous crude, the high oil that coagulates.
The 175th page inverse 5-6 is capable once stated for " oilfield chemistry " of the 1st edition the 1st printing in press of China University Of Petroleum Beijing July in 2000, and " because oil is thick, the load of oil pumper is big; current consumption is big; mechanical accident is frequent, the back pressure height of surface pipeline, the exploitation and the outer defeated difficulty of bringing of giving viscous crude." therefore, reducing viscosity of thickened oil is the actual needs that viscous oil recovery is produced.
Should " oilfield chemistry " the 252nd page 2-4 is capable once stated: " in order to improve the flow condition of long-distance pipe conveying crude oil, reduce (drag reduction) of reduction of condensation point of crude oil (pour point depression) and crude pipeline transportation resistance is two major issues in the crude oil transmission.When addressing these problems, chemical process is still capable method ".Therefore, pour point depression of crude oil is the actual needs of crude production, accumulating.
Application number is 200910241618.6 " application of methylnaphthalene in reducing viscosity of thickened oil " though disclose the application that methylnaphthalene reduces viscosity of thickened oil, has following defective:
(as methylnaphthalene content be 10% potato spirit liquid) did not reduce the application problem of viscosity of thickened oil when 1) this invention solved methylnaphthalene and is submember.
Laboratory experiment shows: methylnaphthalene with 10% and 90% potato spirit are mixed into mixing liquid, add 10% in the viscous crude at home, can effectively reduce domestic viscosity of thickened oil.
2) organic solvent that adds of this invention only comprises ethers, ester class, organic solvent of ketone, does not comprise arene (as sym-trimethylbenzene, unsym-trimethyl benzene, vinylbenzene etc.), fat hydrocarbon (as nonane, certain herbaceous plants with big flowers alkane, dodecane etc.), hydrocarbon mixture (as kerosene, solvent oil, heavy benzene etc.), petrochemical complex by product organic solvents such as (C9 aromatic cut, C10 aromartic cut, the heavy aromatics cuts of residue, catalytic reforming and cracking ethylene preparation by-product at the bottom of the tower that forms as the petroleum resin production technique or at the bottom of the still).
Open source information shows: the by product C10 aromartic cut main component that catalytic reforming and cracking ethylene preparation obtain is prenitol, isodurene, durol, methyl-propyl benzene, butylbenzene, diethylbenzene, can be used as high-temperature solvent, heat-resisting lubricated wet goods.The market price is far below ethers, ester class, organic solvent of ketone.
Test shows: commercially available C10 aromartic cut close flash point surpasses 20 ℃, can reach more than 40 ℃ through processing such as simple distillation or rectifying back close flash point.
Test shows: under the normal temperature and pressure, methylnaphthalene can be dissolved in arene, fat hydrocarbon, hydrocarbon mixture, petrochemical complex by product or dissolve each other with it, does not produce chemical reaction.
Test shows: in methylnaphthalene, add in fat hydrocarbon, hydrocarbon mixture, the petrochemical complex by product any one or multiple, all can effectively prevent methylnaphthalene crystallization in the low temperature environment in the winter time, form solid substance.
Test shows: fat hydrocarbon, hydrocarbon mixture, petrochemical complex by product all can effectively dissolve commodity pitch, road bitumen, all can effectively reduce domestic viscosity of thickened oil; The mixture of any one in methylnaphthalene and fat hydrocarbon, hydrocarbon mixture, the petrochemical complex by product or multiple formation all can effectively dissolve commodity pitch, road bitumen, all can effectively reduce domestic viscosity of thickened oil.
3) this invention does not solve the problem that reduces condensation point of crude oil with methylnaphthalene.
Test shows: the methylnaphthalene of adding 5% in domestic each elephant crude oil, all can effectively reduce zero pour more than 1 ℃; Fat hydrocarbon, hydrocarbon mixture, petrochemical complex by product can effectively dissolve paraffin, all can effectively reduce zero pour more than 1 ℃ when adding concentration 5% in each elephant crude oil at home; The mixture of any one formation in 10% methylnaphthalene and 90% fat hydrocarbon, hydrocarbon mixture, the petrochemical complex by product all can effectively reduce the former oil freezing point of domestic each elephant more than 1 ℃.
In a word, there is certain defective in application and the application method of methylnaphthalene in crude oil at present.
Summary of the invention
" methylnaphthalene liquid " described in the present invention: be meant the liquid that contains methylnaphthalene.
" methylnaphthalene " is meant among the present invention: the mixture of any one of 1-methylnaphthalene, 2-methylnaphthalene, " mixed methylnaphthalene " or any two kinds or any two or more arbitrary proportions;
The essential characteristic of " 1-methylnaphthalene " is among the present invention: open source information shows that " 1-methylnaphthalene " is called alpha-methyl-naphthalene, molecular formula C again among the present invention
11H
10, be in a liquid state under the normal temperature and pressure, fusing point-22 ℃, water insoluble, be dissolved in most organic solvents such as ethanol, ether; Test shows that its normal temperature and pressure dissolves each other with " mixed methylnaphthalene " down, can dissolve the 2-methylnaphthalene, does not produce chemical reaction with 2-methylnaphthalene, " mixed methylnaphthalene ", crude oil; Test shows that it can be dissolved in the crude oil; Belong to commodity, can purchase from the market.
The essential characteristic of " 2-methylnaphthalene " is among the present invention: open source information shows that " 2-methylnaphthalene " is called beta-methylnaphthalene, molecular formula C again among the present invention
11H
10Normal temperature and pressure is white extremely light yellow monoclinic crystal or molten solid, 34.6 ℃ of fusing points down; Water insoluble, be dissolved in most organic solvents such as ethanol, ether; Test shows, can be dissolved in 1-methylnaphthalene, " mixed methylnaphthalene " under its normal temperature and pressure, can be dissolved in the pyrogen oil that temperature surpasses its fusing point, does not produce chemical reaction with 1-methylnaphthalene, " mixed methylnaphthalene ", crude oil; Belong to commodity, can purchase from the market.
The essential characteristic of " mixed methylnaphthalene " is among the present invention: " mixed methylnaphthalene " is called for short (being commonly called as) methylnaphthalene usually among the present invention, be the organic mixture based on 2-methylnaphthalene, 1-methylnaphthalene, its 2-methylnaphthalene, 1-methylnaphthalene content are relevant with concrete marque; Normal temperature and pressure is down for oily liquids, and is water insoluble, is soluble in ethanol, ether; The domestic unification product standard of formulating at present, its product type, quality index etc. are different and different with the company standard of each manufacturing enterprise, and the 2-methylnaphthalene of general merchandise, 1-methylnaphthalene total content 〉=50%, fusing point are lower than-5 ℃; Test shows that " mixed methylnaphthalene " normal temperature and pressure descends and the 1-methylnaphthalene dissolves each other, and can dissolve the 2-methylnaphthalene, does not produce chemical reaction with 2-methylnaphthalene, 1-methylnaphthalene, crude oil; Test shows that " mixed methylnaphthalene " can be dissolved in the crude oil; Belong to commodity, and marque is numerous, can purchases from the market.
2-methylnaphthalene in " mixed methylnaphthalene " among the present invention, 1-methylnaphthalene total content also can be less than 50%;
" mixed methylnaphthalene " also can only contain 2-methylnaphthalene or 1-methylnaphthalene among the present invention.
" viscous crude " described in the present invention: referring to " the 1st row described " matter of weighing again crude oil, the i.e. high viscosity oil of oil recovery technique handbook the 8th fascicle " preface " of petroleum industry press 1996.12 publication.”
" the high oil that coagulates " described in the present invention: be meant that zero pour is higher than 30 ℃ crude oil.
" crude oil " described in the present invention comprises high oil, the viscous crude of coagulating.
" crude oil of low-coagulation " described in the present invention: be meant that zero pour is lower than 10 ℃ crude oil, can be meant that also zero pour is lower than the crude oil that 30 ℃ and 50 ℃ of viscosity are lower than 100mPa.S.
" pour point depression " described in the present invention: be meant and reduce condensation point of crude oil or zero pour.
" viscosity reduction " described in the present invention: be meant the viscosity that reduces crude oil.
" accumulating " described in the present invention: be meant storage, the transportation of crude oil, comprise the crude oil exporting process.
" zero pour " among the present invention is meant: under prescribed condition, the temperature that crude oil loses flowability belongs to one of physical parameter of crude oil, claims temperature of solidification again, is called for short condensation point.
" liquid " is meant among the present invention: the fluid that is in a liquid state, can be meant the aqueous solution, organic solution, emulsion, the suspension liquid that are in a liquid state, and also can be meant the fluid or the melt liquid of molten state.
The technical problem to be solved in the present invention provides a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid: it comprises any one or any mixture that is mixed of two or more arbitrary proportion between them in the following liquid:
1) methylnaphthalene content is lower than 50% potato spirit liquid;
2) methylnaphthalene content is lower than 50% extraordinary organic solvent liquid;
3) methylnaphthalene content is lower than 50% organic solvent liquid;
4) contain the organic liquid of methylnaphthalene;
5) the methylnaphthalene liquid that is in a liquid state below 50 ℃;
6) methylnaphthalene that is in a liquid state below 100 ℃ and condensed ring aromatic hydrocarbon mixing liquid;
7) methylnaphthalene that is in a liquid state below 100 ℃ and condensed ring aromatic hydrocarbon derivative mixing liquid;
8) methylnaphthalene that is in a liquid state below 100 ℃ and biphenyl mixing liquid;
9) methylnaphthalene that is in a liquid state below 100 ℃ and petroleum resin mixing liquid;
10) contain carbolic oil, naphtalene oil or the coal tar liquid of methylnaphthalene
11) methylnaphthalene that is in a liquid state below 100 ℃ and hydro carbons autopolymer mixing liquid;
" potato spirit " essential characteristic among the present invention is: produce any one or arbitrary proportion is mixed between them mixture in the by product potato spirit of divinyl from the byproduct potato spirit of fermentation method preparing alcohol, alcohol method, be in a liquid state under the normal temperature and pressure; Test shows that itself and 1-methylnaphthalene, mixed methylnaphthalene dissolve each other, and is dissolved in crude oil, can dissolve the 2-methylnaphthalene; Do not produce chemical reaction under the normal temperature and pressure with 1-methylnaphthalene, 2-methylnaphthalene, mixed methylnaphthalene, crude oil; Belong to commodity, can purchase from the market.
" extraordinary organic solvent " described in the present invention: be meant any one or any mixture that is mixed of two or more arbitrary proportion between them in alcohols (as octanol, primary isoamyl alcohol etc.), the diol, derivatives (as butyl glycol ether, Diethylene Glycol butyl ether, diethylene glycol ether etc.).
" organic solvent " described in the present invention: be meant any one or any mixture that is mixed of two or more arbitrary proportion between them in ethers (as n-butyl ether, ethyl isobutyl ether or octyl ether etc.), ester class (as hexyl acetate, phenylacetate or methyl benzoate etc.), the ketone (as 3-heptanone, 2 octanones etc.);
" organic liquid " described in the present invention: be meant the organism that is in a liquid state under the normal temperature.
Further, organic liquid is any one or two or more arbitrary proportion is mixed between them a mixture of following liquid:
1) pure class I liquid I is as liquid such as methyl alcohol, ethanol;
2) aromatic hydrocarbons liquid is as liquid such as dimethylbenzene, trimethylbenzene, ethylbenzene, vinylbenzene;
3) fat hydrocarbon liquid is as liquid such as nonane, certain herbaceous plants with big flowers alkane, dodecanes;
4) hydrocarbon mixture liquid is as liquid such as kerosene, heavy benzenes;
5) petrochemical complex rest product fluid, is mixed liquid such as heavy benzene at C9 aromatic cut, C10 aromartic cut, the heavy aromatics cut of residue, catalytic reforming and cracking ethylene preparation by-product at the bottom of the tower that forms as the petroleum resin production technique or at the bottom of the still;
6) aromatic hydrocarbons or arene derivatives content are greater than 5% liquid petroleum product liquid, as diesel oil, plastic cracking oil, rubber cracking wet goods liquid;
7) olefin liquid is as liquid such as 14-alkene, 12-alkene, cyclopentadiene, dicyclopentadiene, fragrant alkene, vinylbenzene, vinyl toluene, p-methylstyrenes;
8) solvent oil liquid is as alkane solvent oil, aromatic solvent naphtha, alkene solvent wet goods liquid;
9) normal temperature is liquid petroleum resin liquid down;
10) wax content, gum level all are lower than 10% crude oil of low-coagulation;
11) the heterocycle organic liquid of not chloride element, element sulphur in the molecular formula is as liquid such as pyridine, quinoline, furans;
12) bio-oil that is in a liquid state under the normal temperature, cracking bio-oil liquid are as vegetables oil, cracking animal oil, biofuel etc.;
Preferably, above-mentioned methylnaphthalene liquid is: the high temperature methylnaphthalene liquid that is in a liquid state between the normal temperature to 100 ℃.
Preferably, a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid of the present invention can also comprise following raw material: crude oil of low-coagulation.
Preferably, a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid of the present invention can also comprise following raw material: water and tensio-active agent.Described water be extraneous water or from viscous crude, high coagulate the isolated sewage that contains emulsified crude oil the oil.The essential characteristic of described tensio-active agent is: have surfactivity, can significantly reduce the material or the commodity of interfacial tension, can purchase from the market; Can be any one or two or more mixing and do not produce the mixture of precipitation, flocculation reaction arbitrarily of nonionogenic tenside, anion surfactant, cats product, polymeric surface active agent, amphoterics, bio-surfactant.
Open source information shows: the commercial coal tar on the domestic market contains methylnaphthalene, organic solvent, belongs to the liquid that contains methylnaphthalene, can reduce former oil freezing point and viscosity, has the function of methylnaphthalene liquid; Carbolic oil, naphtalene oil are processed by coal tar, contain methylnaphthalene, organic solvent, have the function of methylnaphthalene liquid, belong to the liquid that contains methylnaphthalene.
Test shows: under the normal temperature, mixed methylnaphthalene can be miscible with arbitrary proportion with potato spirit, extraordinary organic solvent, organic solvent, organic liquid; 90% mixed methylnaphthalene can dissolve 10% naphthalene or dimethylnaphthalene or biphenyl or petroleum resin or hydro carbons autopolymer.
" hydro carbons autopolymer " described in the present invention: be meant the solid substance that unsaturated hydrocarbons forms by auto-polymerization under natural accumulating state, as the solid substance of cyclopentadiene auto-polymerization formation.
A kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid of the present invention.This pour-viscosity reduction agent has enlarged methylnaphthalene and has contained the using method and the scope of methylnaphthalene liquid, the concrete concrete using method that reduces former oil freezing point, viscosity with the liquid that contains methylnaphthalene that clearly indicated, can effectively reduce zero pour, the viscosity of crude oil, can significantly reduce viscous crude, high exploitation, production, carrying cost of coagulating oil, have widely applicable, low cost and other advantages.
The present invention has following beneficial effect: the present invention has enlarged methylnaphthalene and has contained the using method and the scope of methylnaphthalene liquid, indicated the concrete using method that reduces former oil freezing point, viscosity with the liquid that contains methylnaphthalene, zero pour, the viscosity of crude oil can be effectively reduced, viscous crude, high exploitation, production, carrying cost of coagulating oil can be significantly reduced.
Embodiment
Embodiment 1
A kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid comprises following raw materials by weight percent: 20% commodity mixed methylnaphthalene and 80% commodity C10 aromartic cut.
The above-mentioned pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid added exploitation or/and the viscous crude of accumulating, high coagulating in the oil, reducing viscous crude, high zero pour, viscosity of coagulating oil, and then reduce viscous crude, the high oil flow resistance that coagulates, viscous crude, the high oil that coagulates are flowed smoothly;
Described methylnaphthalene liquid can reduce viscous crude, high zero pour, viscosity of coagulating oil cost-effectively, and viscous crude, the high oil that coagulates are flowed smoothly; Can determine methylnaphthalene liquid is added viscous crude, high Cmin, peak concentration, optimum concn, effective working concentration scope of coagulating in the oil by existing method as those of ordinary skills;
Test shows: will be added in the viscous crude that Xinjiang system in Tahe Oilfield oil extraction No.1 Factory TH12211 well produced by the commodity mixed methylnaphthalene of weight ratio 20%, 80% the composite methylnaphthalene liquid of commodity C10 aromartic cut (having another name called heavy aromatics), adding concentration is can reduce the viscosity of this viscous crude at 10% o'clock more than 95%; This methylnaphthalene liquid is coagulated in the oil according to the height that the quiet 35--31-31 well in 10% concentration adding Liaohe Oil Field is produced, can reduce this height and coagulate oil freezing point more than 10 ℃.
Embodiment 2
A kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid comprises following raw materials by weight percent:
The potato spirit liquid of 50% methylnaphthalene content 30%, 50% crude oil of low-coagulation.
For better utilised methylnaphthalene liquid, described methylnaphthalene liquid added exploitation more equably or/and the viscous crude of accumulating, high coagulating in the oil, save methylnaphthalene liquid consumption, make full use of viscosity reduction, pour-point depressing process and the local crude oil of low-coagulation resource of crude oil of low-coagulation, allow methylnaphthalene liquid and crude oil of low-coagulation produce synergistic effect, combination and cooperation reduces viscous crude, high zero pour, viscosity of coagulating oil; Described methylnaphthalene liquid and crude oil of low-coagulation are mixed into the crude oil pharmaceutical mixture, and this crude oil pharmaceutical mixture added exploitation or/and the viscous crude of accumulating, high coagulating in the oil, to reduce viscous crude, high zero pour, viscosity of coagulating oil, viscous crude, the high oil that coagulates are flowed smoothly;
In order to prevent that described crude oil pharmaceutical mixture from producing crystal, solid substance or solidify in low temperature physical environment (as winter), better the result of use of performance crude oil pharmaceutical mixture in low temperature physical environment (as winter) can be used existing method rising crude oil of low-coagulation or crude oil pharmaceutical mixture temperature.For reaching aforementioned target, can determine the temperature that crude oil of low-coagulation or crude oil pharmaceutical mixture need heat up by existing method as those of ordinary skills; In order to reduce energy consumption and thermosteresis, keep crude oil pharmaceutical mixture temperature with existing heat preserving method or tracing thermal-insulating method (or heating heat preserving method).For reaching aforementioned target, can determine by existing method that the crude oil pharmaceutical mixture adds exploitation or/and the viscous crude of accumulating, high temperature range of coagulating in the oil maybe need the temperature range that keeps as those of ordinary skills;
Embodiment 3
A kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid comprises following raw materials by weight percent:
The octanol liquid of 20% methylnaphthalene content 20%, 50% crude oil of low-coagulation, 25% water and 5% tensio-active agent.
In order to make the more uniform adding viscous crude of described crude oil pharmaceutical mixture, high coagulating in the oil, save described crude oil pharmaceutical mixture consumption, described crude oil pharmaceutical mixture and water are added tensio-active agent be mixed into emulsion, again this emulsion is added exploitation or/and the viscous crude of accumulating, high coagulating in the oil; Described water can be extraneous water, also can be the isolated sewage that contains emulsified crude oil from viscous crude, high oil with fixed attention, and water temperature all is not less than described crude oil pharmaceutical mixture temperature; The tensio-active agent that is added be meant commercially available nonionogenic tenside, anion surfactant, cats product, polymeric surface active agent, amphoterics, bio-surfactant any one or arbitrarily two or more arbitrary proportion mix and do not produce the mixture of flocculation, precipitin reaction; In order to prevent that described emulsion from producing solid substance or solidify in low temperature environment (as winter), can keep described emulsion temperature with existing heat preserving method or tracing thermal-insulating method (or heating heat preserving method);
Test shows: the octanol liquid of the methylnaphthalene content 20% with 20%, 50% crude oil of low-coagulation, 25% water and the composite liquid of 5% tensio-active agent, adding concentration in the viscous crude that Xinjiang system in Tahe Oilfield oil extraction No.1 Factory TH12211 well is produced is can reduce the viscosity of this viscous crude at 10% o'clock more than 90%; This liquid is coagulated in the oil according to the height that the quiet 35-31-31 well in 10% concentration adding Liaohe Oil Field is produced, can reduce this height and coagulate oil freezing point more than 7 ℃.
Embodiment 4
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the butyl glycol ether liquid that contains the 10%1-methylnaphthalene.
Embodiment 5
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the Diethylene Glycol butyl ether liquid that contains the 15%2-methylnaphthalene.
Embodiment 6
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the diethylene glycol ether liquid that contains 20% mixed methylnaphthalene.
Embodiment 7
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the n-butyl ether liquid that contains the 25%1-methylnaphthalene.
Embodiment 8
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the ethyl isobutyl ether liquid that contains the 30%2-methylnaphthalene.
Embodiment 9
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the hexyl acetate liquid that contains 33% mixed methylnaphthalene.
Embodiment 10
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the phenylacetate liquid that contains the 36%1-methylnaphthalene.
Embodiment 11
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the methyl benzoate liquid that contains the 39%2-methylnaphthalene.
Embodiment 12
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the 3-heptanone liquid that contains 42% mixed methylnaphthalene.
Embodiment 13
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is the methyln-hexyl ketone liquid that contains the 45%1-methylnaphthalene.
Embodiment 14
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is 25%1-methylnaphthalene and the 75% condensed ring aromatic hydrocarbon mixing liquid that is in a liquid state below 100 ℃.
Embodiment 15
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is 23%2-methylnaphthalene and the 77% condensed ring aromatic hydrocarbon derivative mixing liquid that is in a liquid state below 100 ℃.
Embodiment 16
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is 17% mixed methylnaphthalene and the 83% biphenyl mixing liquid that is in a liquid state below 100 ℃.
Embodiment 17
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is 20%2-methylnaphthalene and the 80% petroleum resin mixing liquid that is in a liquid state below 100 ℃.
Embodiment 18
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is carbolic oil, naphtalene oil or the coal tar liquid that contains 30% mixed methylnaphthalene.
Embodiment 19
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is pyridine, quinoline or the furans liquid that contains 30% mixed methylnaphthalene.
Embodiment 20
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is that wax content, the gum level that contains the 29%1-methylnaphthalene all is lower than 10% crude oil of low-coagulation.
Embodiment 21
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is that the normal temperature that contains the 29%2-methylnaphthalene is liquid petroleum resin liquid down.
Embodiment 22
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is alkane solvent oil, aromatic solvent naphtha or the alkene solvent oil liquid that contains the 28%1-methylnaphthalene.
Embodiment 23
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is 14-alkene, 12-alkene, cyclopentadiene, dicyclopentadiene, fragrant alkene, vinylbenzene, vinyl toluene or the p-methylstyrene liquid that contains 26% mixed methylnaphthalene.
Embodiment 24
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is diesel oil, plastic cracking oil or the rubber cracking fluid body that contains 25% mixed methylnaphthalene.
Embodiment 25
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid be the C9 aromatic cut, C10 aromartic cut, the heavy aromatics cut that contain 24% mixed methylnaphthalene, mix the tower that heavy benzene liquid or petroleum resin production technique form at the bottom of or residue at the bottom of the still.
Embodiment 26
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is kerosene or the heavy benzene liquid that contains 22% mixed methylnaphthalene.
Embodiment 27
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is nonane, certain herbaceous plants with big flowers alkane or the dodecane liquid that contains 18% mixed methylnaphthalene.
Embodiment 28
Repeat embodiment 1, its difference only with, described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is dimethylbenzene, trimethylbenzene, ethylbenzene or the vinylbenzene liquid that contains 18% mixed methylnaphthalene.
Embodiment 29
Method with water vapor (or hot water) heating is increased to 30-100 ℃ with the material temperature that is solid substance under the normal temperature, makes the high temperature methylnaphthalene liquid that is in a liquid state between the normal temperature to 100 ℃, as the pour point depression of crude oil viscosity-depression agent.
Test shows: put into 50% mixed methylnaphthalene with being solid-state commodity 2-methylnaphthalene under 50% normal temperature, can form 30 ℃ methylnaphthalene liquid when being heated to 30 ℃; Mix being solid-state commodity naphthalene under 50% commodity 2-methylnaphthalene and 50% normal temperature at normal temperatures, be heated to 80 ℃ then, can form 80 ℃ methylnaphthalene liquid; Put into the 50%1-methylnaphthalene with being solid-state commodity biphenyl under 50% normal temperature, be heated to 50 ℃ then, can form 50 ℃ methylnaphthalene liquid; Put into 50% mixed methylnaphthalene with being solid-state commodity naphthols under 50% normal temperature, be heated to 80 ℃ then, can form 80 ℃ methylnaphthalene liquid; Put into 50% mixed methylnaphthalene with being solid-state commodity oil resin under 50% normal temperature, be heated to 80 ℃ then, can form 80 ℃ methylnaphthalene liquid; Put into 50% mixed methylnaphthalene with being solid-state cyclopentadiene autopolymer under 50% normal temperature, be heated to 50 ℃ then, can form 50 ℃ methylnaphthalene liquid; Put into 80% coal tar with being solid-state commodity 2--methylnaphthalene under 20% normal temperature, can form 25 ℃ methylnaphthalene liquid at normal temperatures;
Embodiment 30
Make methylnaphthalene liquid with being solid-state 2-methylnaphthalene under the normal temperature, the 2-methylnaphthalene is dissolved in the organic liquid, make methylnaphthalene liquid with existing method;
Test shows: put into 90% any one organic liquid with being solid-state commodity 2-methylnaphthalene under 10% normal temperature, all can make methylnaphthalene liquid at normal temperatures.
Test shows: the methylnaphthalene liquid that will make by 10% 2-methylnaphthalene and 90% any one organic liquid, and the concentration that adds in the viscous crude that Xinjiang system in Tahe Oilfield oil extraction No.1 Factory TH12211 well produced is all can reduce the viscosity of this viscous crude at 10% o'clock more than 90%; This methylnaphthalene liquid is added height that the quiet 35--31-31 well in Liaohe Oil Field produced when coagulating in the oil according to 10% concentration, all can reduce this height and coagulate oil freezing point more than 5 ℃.
In order more effectively to utilize the high temperature methylnaphthalene liquid that is in a liquid state between the normal temperature to 100 ℃, the high temperature methylnaphthalene liquid that is in a liquid state between the described normal temperature to 100 ℃ is added exploitation more equably or/and the viscous crude of accumulating, high coagulating in the oil, save high temperature methylnaphthalene liquid consumption, the high temperature methylnaphthalene liquid that is in a liquid state between the normal temperature to 100 ℃ is mixed with hot water earlier with existing method, and interpolation tensio-active agent, make high temperature methylnaphthalene emulsifying liquid liquid, with existing method high temperature methylnaphthalene emulsifying liquid liquid is added exploitation or/and the viscous crude of accumulating again, high coagulating in the oil, to reduce viscous crude, high zero pour of coagulating oil, viscosity flows it smoothly;
Embodiment 31
For better utilised high temperature methylnaphthalene liquid, described high temperature methylnaphthalene liquid is added exploitation more equably or/and the viscous crude of accumulating, high coagulating in the oil, save high temperature methylnaphthalene liquid consumption, make full use of the viscosity reduction of crude oil of low-coagulation, pour-point depressing process and local crude oil of low-coagulation resource, allow high temperature methylnaphthalene liquid and crude oil of low-coagulation produce synergistic effect, combination and cooperation reduces viscous crude, high zero pour of coagulating oil, viscosity, with existing method described high temperature methylnaphthalene liquid and crude oil of low-coagulation are mixed into the crude oil pharmaceutical mixture, and this crude oil pharmaceutical mixture is added exploitation or/and the viscous crude of accumulating with existing method, high coagulating in the oil, to reduce viscous crude, high zero pour of coagulating oil, viscosity makes viscous crude, the high oil that coagulates flows smoothly; For reaching aforementioned target, can determine the blending ratio of methylnaphthalene liquid and crude oil of low-coagulation as those of ordinary skills by existing method, and the temperature can determine described crude oil of low-coagulation and described high temperature methylnaphthalene liquid mixing the time;
In order to prevent that described crude oil pharmaceutical mixture from producing crystal, solid substance or solidify in low temperature physical environment (as winter), better the result of use of performance crude oil pharmaceutical mixture in low temperature physical environment (as winter) can keep crude oil pharmaceutical mixture temperature with existing heat preserving method or tracing thermal-insulating method (or heating heat preserving method).
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give exhaustive to all embodiments.Everyly belong to the row that conspicuous variation that technical scheme of the present invention extends out or change still are in protection scope of the present invention.
Claims (9)
1. pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid is characterized in that: it be in the following methylnaphthalene liquid any one, the mixture that is mixed of two or more arbitrary proportion:
1) methylnaphthalene content is lower than 50% potato spirit liquid;
2) methylnaphthalene content is lower than 50% extraordinary organic solvent liquid;
3) methylnaphthalene content is lower than 50% organic solvent liquid;
4) contain the organic liquid of methylnaphthalene;
5) the methylnaphthalene liquid that is in a liquid state below 50 ℃;
6) methylnaphthalene that is in a liquid state below 100 ℃ and condensed ring aromatic hydrocarbon mixing liquid;
7) methylnaphthalene that is in a liquid state below 100 ℃ and condensed ring aromatic hydrocarbon derivative mixing liquid;
8) methylnaphthalene that is in a liquid state below 100 ℃ and biphenyl mixing liquid;
9) methylnaphthalene that is in a liquid state below 100 ℃ and petroleum resin mixing liquid;
10) contain carbolic oil, naphtalene oil or the coal tar liquid of methylnaphthalene;
11) methylnaphthalene that is in a liquid state below 100 ℃ and hydro carbons autopolymer mixing liquid.
2. a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid according to claim 1 is characterized in that: described potato spirit is that the byproduct potato spirit, alcohol method of fermentation method preparing alcohol produced any one or arbitrary proportion is mixed between them the mixture in the by product potato spirit of divinyl.
3. a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid according to claim 1 is characterized in that: described extraordinary organic solvent be in octanol, primary isoamyl alcohol, butyl glycol ether, Diethylene Glycol butyl ether, the diethylene glycol ether any one, the mixture that is mixed of two or more arbitrary proportion.
4. a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid according to claim 1 is characterized in that: described organic solvent be in n-butyl ether, ethyl isobutyl ether, octyl ether, hexyl acetate, phenylacetate or methyl benzoate, 3-heptanone, the methyln-hexyl ketone any one, the mixture that is mixed of two or more arbitrary proportion.
5. a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid according to claim 1 is characterized in that the mixture that any one that described organic liquid is following liquid, two or more arbitrary proportion are mixed:
Methyl alcohol, ethanol, dimethylbenzene, trimethylbenzene, ethylbenzene, vinylbenzene, nonane, certain herbaceous plants with big flowers alkane, dodecane, kerosene, heavy benzene, residue at the bottom of the tower that the petroleum resin production technique forms or at the bottom of the still, the C9 aromatic cut of catalytic reforming and cracking ethylene preparation by-product, the C10 aromartic cut, the heavy aromatics cut, mix heavy benzene, diesel oil, plastic cracking oil, rubber cracking oil, 14-alkene, 12-alkene, cyclopentadiene, dicyclopentadiene, fragrance alkene, vinylbenzene, vinyl toluene, p-methylstyrene, alkane solvent oil, aromatic solvent naphtha, the alkene solvent oil, normal temperature is liquid petroleum resin liquid down, wax content, gum level all is lower than 10% crude oil of low-coagulation, pyridine, quinoline, furans, vegetables oil and cracking animal oil and biofuel.
6. according to any described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid in the claim 1～5, it is characterized in that described methylnaphthalene liquid is the high temperature methylnaphthalene liquid that is in a liquid state between the normal temperature to 100 ℃.
7. according to any described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid in the claim 1～5, it is characterized in that it also comprises crude oil of low-coagulation.
8. according to any described a kind of pour point depression of crude oil viscosity-depression agent that contains methylnaphthalene liquid in the claim 1～5, it is characterized in that it also comprises water and tensio-active agent.
According to Claim 8 in any described tensio-active agent, it is characterized in that any one of described glass or plastic containers, anion surfactant, cats product, polymeric surface active agent, amphoterics, bio-surfactant or two or more mixing and do not produce the mixture of precipitation, flocculation reaction arbitrarily.
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