CN103102705A - Asphalt composition particle and preparation method thereof - Google Patents
Asphalt composition particle and preparation method thereof Download PDFInfo
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- CN103102705A CN103102705A CN2011103535584A CN201110353558A CN103102705A CN 103102705 A CN103102705 A CN 103102705A CN 2011103535584 A CN2011103535584 A CN 2011103535584A CN 201110353558 A CN201110353558 A CN 201110353558A CN 103102705 A CN103102705 A CN 103102705A
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Abstract
The invention provides an asphalt composition particle and a preparation method thereof. The preparation method comprises the following steps: selecting a base asphalt raw material with a proper softening point and adding the base asphalt raw material and a proper solid dispersant into a crushing apparatus for pre-dispersion; placing the pre-dispersed material in a low temperature environment until the material is embrittled, taking out the embrittled material and carrying out crushing immediately; adjusting the particle size of asphalt through controlling different refrigeration time and temperature and crushing time; and finally a small amount of a coating agent is added and carrying out mixing for a short time so as to prepare the asphalt composition particle with excellent high temperature performance and resistance to temperature sensitivity, a fine particle size, suitability for normal temperature storage and a high softening point. The asphalt composition particle with a high softening point prepared by using the preparation method in the invention has a particle size of less than 120 mm and is free of caking.
Description
Technical field
The present invention relates to a kind of bituminous composition particle and preparation method, relate in particular to a kind of high softening point bitumen composition of oil field welldrilling and the method for preparation.
Background technology
High softening point bitumen refers to softening temperature more than 100 ℃, especially at the pitch more than 120 ℃.High softening point bitumen is used because its outstanding high-temperature resistance has more widely.As the use as the roof cover of building, even also can not become during the broiling summer very soft even trickling.Can also be used for the drilling operation in deep-seated oil gas field, as the important component part of drilling fluid, can play shutoff, anti-collapse under hot conditions, stabilizing borehole, the effect of reduced rate filter loss.In addition, can also be as the property-modifying additive of macromolecular material etc.
Asphalt product has purposes widely in the oil/gas drilling process, can be used as the important component part of drilling fluid (being commonly called as mud), one of indispensable important dose of kind of domestic and international modern drilling engineering, have good anti-collapse, lubricated, reduce the comprehensive effectivenesses such as leak-off and high-temperature stable.Along with the development of petroleum prospecting and exploitation, drilling depth is constantly deepened, and drilling strata is more and more complicated, and the quantity of the special wells such as orientation well, horizontal well increases gradually.This makes drilling engineering have higher requirement with asphalt product and system thereof to drilling fluid.Common softening point asphalt can can't satisfy because overbating even trickling the high-temperature service requirement under deep-well.Develop the high softening point bitumen that high-temperature behavior is good, good shutoff and filtration reduction are arranged, to satisfy the needs of oil drilling engineering, tool is of great significance.
In order to improve drilling fluid with the use properties of asphalt product, successively disclose a lot of methods both at home and abroad pitch has been carried out modification.Wherein topmost method is just carried out sulfonation to pitch.As US3485745, CN99109453, CN201010250241 etc.Although this method can increase the water-soluble of product, oily molten rate is lower.Pitch has mainly generated sulfonate after sulfonation, the softening temperature of product does not almost measure, and can only use under lower temperature condition.And its particle do not have elasticity, deformability poor, can not embed arbitrarily the duct in well, and irregular shape duct particularly can not be played well shutoff and be fallen the effect of leak-off.Simultaneously, this technique is more complicated, and environment is easily polluted.CN99123211 discloses a kind of method that adopts the method production well plugging agent of surface portion sulfonation, and the advantage of this method is to have improved the oily molten thing content (can reach 60%) of product, thereby has improved the content of deformable particle in the product.Shortcoming is that the softening temperature of product only has 100 ℃ of left and right, can't use in deep-well and ultra deep well.
When high softening point bitumen uses in drilling fluid, require to be distributed in mud system with small particle, so both can guarantee that pitch is uniformly dispersed, can avoid again being agglomerated into larger block blocking vibration sieve and the generation that causes problems such as to use.Generally, the particle diameter of pitch particle requires even can normally use below 100 μ m below 120 μ m.
Yet it is very difficult that asphalt powder is broken into little particle.Adopt general disintegrating apparatus the material of building stones or coal class can be ground into very little particle.But pitch and above-mentioned substance have very large difference.Because in crushing process, produce a large amount of heat along with the high speed rotating of pulverizer and material friction, temperature of charge is raise a lot.Pitch is due to its special physical property, can be along with the rising deliquescing of temperature, become sticky, even pulverized small-particle also can be bonded to large particle again.And the particle diameter of pulverizing is less, and this situation is more obvious.
In order to address these problems, CN95120535 discloses a kind of method of producing the high softening point bitumen fine particle.It mainly comprises three steps: first raw material and water are made emulsion, then the fine particle from emulsion extracts and removes light constituent, separates at last and reclaims the pitch fine particle.The method can obtain tiny pitch particle, and shortcoming is complex technical process, need to use a large amount of organic solvents during extraction, and production cost improves.In the end recovery treatment stage needs drying, easily causes the pitch particle partial melting and again is bonded together.
CN200310107024 discloses a kind of production method of granular pitch, comprises two kinds of thermal spraying and freezing crushing methods.Thermal spraying is with after the massive asphalt heating and melting, and from cooling tower top Jet with downward flow direction, the cooling tower bottom side constantly upwards sprays subcooling gas, makes the pitch that nebulizes through cooling formation particle by high-pressure nozzle, and drying obtains.This method is to high softening point bitumen and inapplicable.Because high softening point bitumen immediately under comparatively high temps viscosity also very high, easily cause spray nozzle clogging, the problem such as can't spray.
The freezing and pulverizing technology was risen at the beginning of last century, at first was applied at rubber and plastic industry.Freezing and pulverizing is to utilize material " fragility " at low temperatures, and namely material is along with the reduction of temperature, and its hardness and fragility increase, and plasticity and toughness drop.The freezing and pulverizing principle is exactly first that material is freezing to glass transition temp or below embrittlement temperature, then uses the less power namely can be with crushing material.This method is a kind of more satisfactory grinding mode for coal-tar pitch, but for petroleum pitch, particularly there is larger problem in high softening point bitumen.Petroleum pitch has special sticking toughness and temperature sensitivity, only adopts freezing and pulverizing can cause the pitch particle degree inadequate.Even the pitch granularity can reach requirement, but along with the diminishing of pitch particle diameter, specific surface area increases, and presents autohemagglutination trend between particle, also prolonged preservation at normal temperatures.
Summary of the invention
The grain diameter that exists in producing high softening point bitumen particle process for prior art is large, easily again be bonded to piece after pulverizing, the problem such as can not store at normal temperatures for a long time, the invention provides a kind of by selecting suitable basic asphalt, add different additives, adopt the method for pre-dispersed-freezing-pulverizing to produce the high softening point bitumen composition grain.Technique of the present invention is simple, easy to operate, cost is lower, and products obtained therefrom not only grain diameter is little, and high-temperature behavior and anti-temperature-sensitive excellent property, can satisfy the high-temperature drilling job requirements.
Bituminous composition particle of the present invention by mass percentage, comprises following component:
(1) basic asphalt: 70%～94.5%;
(2) solid dispersion: 5%～29.5%;
(3) coating agent: 0.1%～5%;
The mean particle size of bituminous composition particle is 10～120mm, is preferably 30～100mm.
In bituminous composition of the present invention, the softening temperature of basic asphalt is more than 120 ℃, and is preferred more than 150 ℃, is generally 120～220 ℃, is preferably 150～190 ℃.Basic asphalt can be oxidized bitumen and/or solvent deoiling pitch, is preferably the mixture of oxidized bitumen and solvent deoiling pitch, and wherein oxidized bitumen accounts for 30%～70% of basic asphalt quality, and solvent deoiling pitch accounts for 70%～30% of basic asphalt quality.The quality percentage composition of basic asphalt in bituminous composition is preferably 75%～89%.
In bituminous composition of the present invention, solid dispersion is one or more in graphite, polynite and wilkinite.Add-on preferably accounts for 10%～20% of bituminous composition total mass.Solid dispersion is pulverulence.
In bituminous composition of the present invention, coating agent is one or more of water soluble resin, polyvinylpyrrolidone (PVP).Water soluble resin is as water soluble acrylic resin, water soluble alkyd resin, Polyester Resin Water Soluble etc.Solid dispersion and coating agent can use the commercial goods.
In bituminous composition of the present invention, can also add as required suitable auxiliary agent, as antioxidant, softening agent etc., specifically can be determined by those of ordinary skills according to the requirement of use properties.
The preparation method of bituminous composition particle of the present invention comprises following process: select basic asphalt raw material (being generally block), basic asphalt raw material and solid dispersion are joined carry out pre-mixing in disintegrating apparatus and disperse, then be placed in low temperature environment to the material embrittlement, temperature is 0～-60 ℃, be preferably-10～-30 ℃, time is 2～48 hours, is preferably 2～10 hours; After low temperature brittleness, material is pulverized in disintegrating apparatus, then adds coating agent, mixes, and namely prepares the high softening point bitumen composition grain.
In the above-mentioned preparation method of the present invention, disintegrating apparatus can be high speed shear pulverizer, colloidal mill or jaw crusher.Add the mixing process after coating agent also to carry out in disintegrating apparatus.Also can adopt suitable equipment, the operation of lowering the temperature in crushing process.
In the above-mentioned preparation method of the present invention, when pre-mixing disperses, charging is normal temperature, and the pre-mixing jitter time is 1～10s, and after low temperature brittleness, the grinding time of material is 10～40 s, and adding the mixing time after coating agent is 1～10s.
The inventive method can be prepared high-temperature behavior and anti-temperature-sensitive excellent property, and particle diameter is adjustable, and suitable normal temperature is stored the high softening point bitumen composition grain of (not boning) for a long time.Bituminous composition particle of the present invention is suitable for the preparation drilling fluid.
In the inventive method, at first select oxidized bitumen and the solvent deoiling pitch of suitable softening temperature, mix in suitable ratio.Select the pitch of two kinds of different process to have obvious advantage as basic asphalt, the oxidized bitumen that softening temperature is close and solution-off pitch, character is not identical.Oxidized bitumen toughness is larger, is difficult for pulverizing and disperseing, and is not fairly obvious but viscosity with temperature changes, and has resisting temperature susceptibility preferably; The solution-off ductility of bitumen is less, easily pulverize and disperse, but viscosity with temperature changes greatly, and resisting temperature susceptibility is relatively relatively poor.Adopt both compositely, can learn from other's strong points to offset one's weaknesses, reach better use properties.
In the inventive method, solid dispersion mainly comprises one or more in graphite, polynite and wilkinite.Wherein graphite not only can help dispersion and the pulverizing of high softening point bitumen, and can play lubrication in the middle of this bituminous composition is applied to drilling fluid the time, is conducive to prevent the generation of the accidents such as bit freezing.And polynite, wilkinite itself are exactly the integral part of drilling fluid, so do not introduce other inorganic inert component, also just can not cause the destruction of drilling mud system.
In the freezing and pulverizing process, freezing purpose is to allow the fragility of material increase, and plasticity and sticking toughness drop so namely use less power just can reach good crushing effect.Yet crushing process very easily causes the bonding again of pitch particle because the friction shock can be emitted a large amount of heat, and the present invention adopts, and freezing-method of pulverizing in short-term can be avoided the generation of this kind problem.In addition, the pitch particle that is used for drilling fluid be not heal better little.Because pitch particle is in use, certain deformation occurs along with the rising of temperature, different formation fractures and duct, the grain diameter of requirement is different.This step is the Main Means that grain size is regulated.Can adjust the size of pitch particle by controlling freezing time, freezing temp and grinding time, thereby satisfy different service requirementss.
, only still have problems by the technique that adds the dispersion agent freezing and pulverizing particularly for high softening-point petroleum pitch for petroleum pitch.Crushing material can be got at low temperatures very thin, but along with material specific surface area increases, present autohemagglutination trend between particle, spend at normal temperatures the preceding paragraph time will be combined into piece, prolonged preservation at normal temperatures.And particle diameter is less, and this situation is more obvious.The present invention adds a small amount of coating agent in fine particle, then carries out moment and mix.Coating agent also claims separant, and it can wrap trickle pitch particle, and pitch particle is kept apart.Can not coalesce together at normal temperatures, therefore solve the storage at normal temperature problem.
Embodiment
The below will further illustrate the present invention by embodiment, but not thereby limiting the invention, and percentage composition wherein is the quality percentage composition.
Embodiment 1
Be the oxidized bitumen of 152.0 ℃ with softening temperature, account for 35% of basic asphalt, and softening temperature is the solution-off pitch of 153.2 ℃, account for 65% of basic asphalt, join in high speed disintegrator with the graphite that accounts for total material 18%, mixing time 4s puts into refrigerator-freezer freezing temp-20 ℃, freezing 8 hours, then pulverize, grinding time 20s adds the water soluble acrylic resin who accounts for material total amount 1.2%, remix 6s obtains the high softening point bitumen composition grain.Normal temperature was stacked 30 days, sieved.
Comparative example 1
It is the oxidized bitumen of 152.0 ℃ with softening temperature, account for 35% of basic asphalt, with softening temperature be the solution-off pitch of 153.2 ℃, account for 65% of basic asphalt, join in high speed disintegrator mixing time 4s with the graphite that accounts for total material 18%, put into refrigerator-freezer freezing temp-20 ℃, freezing 8 hours, grinding time 20s obtained the high softening point bitumen composition grain.Normal temperature was stacked 30 days, sieved.
Embodiment 2
Be the oxidized bitumen of 164.5 ℃ with softening temperature, account for 30% of basic asphalt, and softening temperature is the solution-off pitch of 161.8 ℃, account for 70% of basic asphalt, with the graphite that accounts for total material 18% and the wilkinite that accounts for total material 6%, join in high speed disintegrator mixing time 5s, put into refrigerator-freezer freezing temp-25 ℃, freezing 10 hours, grinding time 25s added the water soluble alkyd resin that accounts for material total amount 1.0%, remix 5s obtains the high softening point bitumen composition grain.Normal temperature was stacked 30 days, sieved.
Comparative example 2
It is the oxidized bitumen of 164.5 ℃ with softening temperature, account for 30% of basic asphalt, with softening temperature be the solution-off pitch of 161.8 ℃, account for 70% of basic asphalt, put into refrigerator-freezer freezing temp-25 ℃, freezing 10 hours, grinding time 25s, add the water soluble alkyd resin that accounts for material total amount 1.0%, remix 5s obtains the high softening point bitumen composition grain.Normal temperature was stacked 30 days, sieved.
Embodiment 3
Be the oxidized bitumen of 176.2 ℃ with softening temperature, account for 55% of basic asphalt, and softening temperature is the solution-off pitch of 174.8 ℃, account for 45% of basic asphalt, with the graphite that accounts for total material 10% and the wilkinite that accounts for total material 4%, the polynite of total material 4% joins in high speed disintegrator, mixing time 5s, put into refrigerator-freezer freezing temp-30 ℃, freezing 10 hours, grinding time 35s added the polyvinylpyrrolidone that accounts for material total amount 1.5%, remix 7s obtains the high softening point bitumen composition grain.Normal temperature was stacked 30 days, sieved.
Comparative example 3
Be the oxidized bitumen of 176.2 ℃ with softening temperature, account for 55% of basic asphalt, and softening temperature is the solution-off pitch of 174.8 ℃, account for 45% of basic asphalt, with the graphite that accounts for total material 10% and the wilkinite that accounts for total material 4%, the polynite of total material 4% joins in high speed disintegrator, mixing time 5s, put into refrigerator-freezer freezing temp-10 ℃, freezing 4 hours, grinding time 35s added the polyvinylpyrrolidone that accounts for material total amount 1.5%, remix 7s obtains the high softening point bitumen composition grain.Normal temperature was stacked 30 days, sieved.
Embodiment 4
It is the oxidized bitumen of 185.2 ℃ with softening temperature, account for 65% of basic asphalt, and softening temperature is the solution-off pitch of 186.6 ℃, accounts for 35% of basic asphalt, join in high speed disintegrator with the graphite that accounts for total material 20%, mixing time 5s puts into refrigerator-freezer freezing temp-25 ℃, freezing 6 hours, grinding time 35s, add the polyvinylpyrrolidone that accounts for material total amount 1.8%, remix 8s obtains the high softening point bitumen composition grain.Normal temperature was stacked 30 days, sieved.
Comparative example 4
It is the oxidized bitumen of 185.2 ℃ with softening temperature, account for 65% of basic asphalt, with softening temperature be the solution-off pitch of 186.6 ℃, account for 35% of basic asphalt, join in high speed disintegrator with the graphite that accounts for total material 20%, directly pulverize, grinding time 25s, add the polyvinylpyrrolidone that accounts for material total amount 1.8%, remix 8s obtains the high softening point bitumen particulate composition.Normal temperature was stacked 30 days, sieved.
High softening point bitumen composition grain character in table 1 embodiment.
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Softening temperature, ℃ | 152.9 | 162.7 | 175.5 | 185.4 |
| Mean particle size, mm | 106 | 80 | 62 | 80 |
| Percent of pass after sieve, % | 99.1 | 98.9 | 98.5 | 97.9 |
High softening point bitumen composition grain character in table 2 comparative example.
| ? | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| Softening temperature, ℃ | 152.8 | 163.0 | 176.1 | 186.1 |
| Mean particle size, mm | 106 | 180 | 120 | 250 |
| Percent of pass after sieve, % | 50.2 | 97.2 | 97.6 | 85.2 |
Annotate: after sieve, percent of pass refers to: particulate matter normal temperature was stacked after 30 days, and when using with firm preparation, the standard sieve of same apertures sieves, and accounts for the percentage ratio of total mass by the granular mass of sieve aperture.This index is mainly investigated particulate matter through the stability after storing, i.e. change of size situation.
Claims (9)
1. bituminous composition particle is characterized in that: by mass percentage, comprise following component:
(1) basic asphalt: 70%～94.5%;
(2) solid dispersion: 5%～29.5%;
(3) coating agent: 0.1%～5%;
The mean particle size of bituminous composition particle is 10～120mm, is preferably 30～100mm.
2. bituminous composition particle according to claim 1, it is characterized in that: the softening temperature of basic asphalt is more than 120 ℃, is preferably more than 150 ℃.
3. bituminous composition particle according to claim 1 and 2, it is characterized in that: basic asphalt is the mixture of oxidized bitumen and solvent deoiling pitch, wherein oxidized bitumen accounts for 30%～70% of basic asphalt quality, and solvent deoiling pitch accounts for 70%～30% of basic asphalt quality.
4. bituminous composition particle according to claim 1, it is characterized in that: the quality percentage composition of basic asphalt in bituminous composition is 75%～89%, and the solid dispersion add-on accounts for 10%～20% of bituminous composition total mass.
5. according to claim 1 or 4 described bituminous composition particles, it is characterized in that: solid dispersion is one or more in graphite, polynite and wilkinite.
6. bituminous composition particle according to claim 1, it is characterized in that: coating agent is one or more in water soluble resin and polyvinylpyrrolidone.
7. the preparation method of the described bituminous composition particle of claim 1, it is characterized in that comprising following process: select the basic asphalt raw material, basic asphalt raw material and solid dispersion are joined carry out pre-mixing in disintegrating apparatus and disperse, then be placed in low temperature environment to the material embrittlement, temperature is 0～-60 ℃, be preferably-10～-30 ℃, the time is 2～48 hours, is preferably 2～10 hours; After low temperature brittleness, material is pulverized in disintegrating apparatus, then adds coating agent, mixes, and namely prepares the high softening point bitumen composition grain.
8. method according to claim 7, it is characterized in that: disintegrating apparatus is high speed shear pulverizer, colloidal mill or jaw crusher.
9. method according to claim 7, it is characterized in that: the pre-mixing jitter time is 1～10s, and after low temperature brittleness, the grinding time of material is 10～40 s, and adding the mixing time after coating agent is 1～10s.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320101A (en) * | 2013-07-11 | 2013-09-25 | 沧州科迪泥浆有限公司 | Emulsified asphalt for drilling fluids |
| CN103773029A (en) * | 2014-01-20 | 2014-05-07 | 南通东南公路工程有限公司 | Acrylic resin emulsified asphalt |
| CN104498073A (en) * | 2015-01-07 | 2015-04-08 | 高朝阳 | Process and production line for processing natural asphalt by virtue of aid method |
| CN104559233A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Asphalt composition particle and preparation method thereof |
| CN105542492A (en) * | 2014-11-03 | 2016-05-04 | 中国石油化工股份有限公司 | Bitumen composition particles and preparation method thereof |
| CN107383905A (en) * | 2017-07-21 | 2017-11-24 | 长沙理工大学 | A kind of high softening-point modified pitch and preparation method thereof |
| CN114772591A (en) * | 2022-05-09 | 2022-07-22 | 厦门高容纳米新材料科技有限公司 | Method and equipment for low-temperature nano-conversion of soft material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616599A (en) * | 2003-11-14 | 2005-05-18 | 马孟春 | Method for producing granular pitch |
| CN101831281A (en) * | 2010-05-19 | 2010-09-15 | 濮阳市诚信钻采助剂有限公司 | High-dispersion modified asphalt powder and preparation method thereof |
-
2011
- 2011-11-10 CN CN201110353558.4A patent/CN103102705B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616599A (en) * | 2003-11-14 | 2005-05-18 | 马孟春 | Method for producing granular pitch |
| CN101831281A (en) * | 2010-05-19 | 2010-09-15 | 濮阳市诚信钻采助剂有限公司 | High-dispersion modified asphalt powder and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320101A (en) * | 2013-07-11 | 2013-09-25 | 沧州科迪泥浆有限公司 | Emulsified asphalt for drilling fluids |
| CN104559233A (en) * | 2013-10-22 | 2015-04-29 | 中国石油化工股份有限公司 | Asphalt composition particle and preparation method thereof |
| CN103773029A (en) * | 2014-01-20 | 2014-05-07 | 南通东南公路工程有限公司 | Acrylic resin emulsified asphalt |
| CN105542492A (en) * | 2014-11-03 | 2016-05-04 | 中国石油化工股份有限公司 | Bitumen composition particles and preparation method thereof |
| CN104498073A (en) * | 2015-01-07 | 2015-04-08 | 高朝阳 | Process and production line for processing natural asphalt by virtue of aid method |
| CN107383905A (en) * | 2017-07-21 | 2017-11-24 | 长沙理工大学 | A kind of high softening-point modified pitch and preparation method thereof |
| CN114772591A (en) * | 2022-05-09 | 2022-07-22 | 厦门高容纳米新材料科技有限公司 | Method and equipment for low-temperature nano-conversion of soft material |
| CN114772591B (en) * | 2022-05-09 | 2023-06-16 | 厦门高容纳米新材料科技有限公司 | Method and equipment for low-temperature nanocrystallization of soft material |
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