CN104946222B - A kind of oil well oil-base paraffin remover - Google Patents
A kind of oil well oil-base paraffin remover Download PDFInfo
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- CN104946222B CN104946222B CN201410111758.2A CN201410111758A CN104946222B CN 104946222 B CN104946222 B CN 104946222B CN 201410111758 A CN201410111758 A CN 201410111758A CN 104946222 B CN104946222 B CN 104946222B
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- paraffin remover
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
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Abstract
The present invention provides a kind of oil well oil-base paraffin remover, is made up of aromatic hydrocarbon, saturated alkane, bleeding agent and solubilizer.Each component content is by volume of, aromatic hydrocarbon 30% 45% in the paraffin remover, saturated alkane 45% 65%, bleeding agent 0.1% 1%, solubilizer 1.0% 11.0%.Said components are mixed and stirred for by volume uniformly, that is, to obtain paraffin remover of the present invention.Its density is 0.8 0.9g/cm3, the speed of paraffin dissolution is>20mg/min, not sulfur-bearing, chlorine element, 60 DEG C of 40 DEG C of open flash point ＞, condensation point ＜, flash-point is high, and the speed of paraffin dissolution is high, environment-friendly and low-toxicity, solves wax removal product speed and environmental protection, the equilibrium problem of safety well.
Description
Technical field
The present invention relates to a kind of oil well oil-base paraffin remover, belong to oilfield chemistry application field.
Background technology
Oil field generally existing oil well paraffinication phenomenon on stream.Wax deposition causes oil pumper load to increase, pump efficiency reduces,
Rate reduces when oil well output declines, recovered the oil, or even directly blocks oil pipe and cause oil well to stop production.Therefore control and remove of well paraffin is to ensure to contain
The important technique measure that wax crude oil normally produces.Current dewaxing method has many kinds, with chemical agent to paraffin removal from oil well cost
It is relatively low, effect is preferable, quick, be that current application is relatively extensive a kind of.And current oil-base paraffin remover is mostly by oil work
Industry product is prepared, including various solvent naphthas, gasoline, kerosene distillate, and these crude products generally have substantial amounts of sulphur, chlorine element
In the presence of very not environmentally.Moreover, these product flash-points are low, potential safety hazard be present, if patent publication No. is CN1076002A,
Containing industrial solvent, petroleum ether in CN200410023491.8 paraffin remover component, flash-point is less than 0 DEG C, and sulphur chlorinity is high,
It is not only not environmentally but also unsafe product.Number of patent application is to contain chloroform in CN201110419425.2 formula, belongs to oil recovery
During disable product.So on oil-base paraffin remover, paraffin removal rate and environmental protection, the balance of safety always be present.
The content of the invention
The present invention provides a kind of oil well oil-base paraffin remover, its not sulfur-bearing, chlorine, has high-flash and high the speed of paraffin dissolution, solution
Wax removal product speed of having determined and environmental protection, the equilibrium problem of safety.
To achieve the above object, the oil well is made up of with oil-base paraffin remover organic solvent, bleeding agent and solubilizer, preferably
The solubilizer is alcohols.
The organic solvent includes aromatic hydrocarbon and saturated alkane, and it is non-polar solven, can by oil well due to temperature
It is quick with the wax of pressure coalescence and more completely dissolve.
In a preferred embodiment of the invention, the aromatic hydrocarbon is C6-C10Aromatic hydrocarbons, more preferably from benzene, dimethylbenzene and
At least one of trimethylbenzene.The saturated alkane is C4-C10Alkane, more preferably from pentane, hexane, heptane, octane and nonane
At least one of.
It is preferred that also contain White Mineral Oil in the organic solvent.The White Mineral Oil is often referred to slab oil, for by special
Deep refining after mineral oil, colorless and odorless and chemical inertness and light stability can be good.Saturated hydrocarbon structure is basic composition is, point
For son amount generally within the scope of 250-450, it is similar to zero containing materials such as aromatic hydrocarbon, nitrogen, oxygen, sulphur.What is used in the present invention is white
Dormant oils is mainly C7Saturated alkane mixture above.
In a preferred embodiment of the invention, the bleeding agent is nonionic surfactant, such as JFC-2, preferably
To include the fluorine carbon surfactant of fluorine-containing alkyl and oil loving hydrocarbon hydro carbons group in structural formula, as F331, F341,
Basosol XP40 or Basosol XP50.Surfactant plays the role of to permeate and promotes to disperse, when molten using organic solvent
When solving waxy, the addition of proper amount of surfactant can penetrate into waxy deep, promote high concentration solvent to be spread to low concentration direction,
Promote waxy dissolving.
In a preferred embodiment of the invention, the solubilizer is C2-C10Alcohols, more preferably from n-octyl alcohol, just
At least one of amylalcohol, isoamyl alcohol, glycerine and ethylene glycol.The effect of solubilizer is solubilising, includes polarity due to waxy
Composition and nonpolarity element, foregoing aromatic hydrocarbons and saturated alkane are non-polar solvens, and alcohols is polar solvent, is mixed according to similar
Principle, it can be completely dissolved by alcohols and being used cooperatively for organic solvent by waxy.And alcohols not sulfur-bearing, chlorine, there is high dodge
Point, aqueous phase is both dissolved in, dissolve in oil phase, therefore the substance migration mutually to be dissolved each other as enhancement profit again.
Each component content is in paraffin remover of the present invention：By volume, aromatic hydrocarbon 30%-45%, saturated alkane 45%-
65%, bleeding agent 0.1%-1%, solubilizer 1.0%-11.0%.Said components are mixed and stirred for by volume uniformly, that is, to obtain this
The described paraffin remover of invention.
In one embodiment of the invention, each component content is in the paraffin remover：By volume, aromatic hydrocarbon 30%-
45%, saturated alkane 10%-20%, White Mineral Oil 35%-45%, bleeding agent 0.1%-1%, solubilizer 1.0%-11.0%.
In a preferred embodiment of the invention, each component content is in the paraffin remover：By volume, dimethylbenzene
20%-30%, trimethylbenzene 10%-15%, octane 10%-20%, White Mineral Oil 35%-45%, bleeding agent 0.1%-1%, n-octyl alcohol 1.0%-
8.0%, n-amyl alcohol 0.01%-3%.
Contain the harmful substances such as heavy benzol, petroleum ether in traditional oil-base paraffin remover（Heavy benzol has strong impulse stink, poison
Property is big；Petroleum ether flash-point<It is -20 DEG C, inflammable and explosive, and easily suction）, the speed of paraffin dissolution is usual<10mg/min.Oil provided by the invention
Well is 0.8-0.9g/cm with the density of oil-base paraffin remover3, the speed of paraffin dissolution is>20mg/min, not sulfur-bearing, chlorine element, open flash point
40 DEG C of ＞, ＜ -60 DEG C of condensation point.Its flash-point is high, and the speed of paraffin dissolution is high, environment-friendly and low-toxicity, solves wax removal product speed and ring well
Protect, the equilibrium problem of safety.It is preferred that contain White Mineral Oil in the paraffin remover, it is common with other organic solvents and alcohols solubilizer
Effect, further enhances molten wax effect.
Embodiment
With reference to specific embodiment, the invention will be further described, but the present invention is not limited in following embodiments.
Strictly speaking, the wax in crude oil refers to the higher n-alkane of those carbon numbers, generally C16H34~C63H128's
N-alkane is referred to as wax, and pure paraffin is slightly transparent white tasteless crystal.In a broad aspect, the isoparaffin of high carbon chain and
Cycloalkane or aromatic hydrocarbon with chain alkyl fall within the category of wax.Usually, being mixed with high-carbon n-alkane
Both contain other higher hydrocarbons（Such as isoalkane and cycloalkane）, and contain colloid, asphalitine, salt crystallization, the dirt formed, mud
The black semisolid and solid matter of sand, iron rust, mud and oil-water emulsion etc. are referred to as wax.Waxy in embodiment is derived from Kazakhstan
The smooth AshkS-507 wells of saxophone, the insoluble matter of dirt containing stratum 0.12wt%, saturated alkane 85.89wt%, aromatic hydrocarbon 4.79wt%, glue
Matter asphalitine 3.04wt%, wherein C34~C54Content is of a relatively high.
White Mineral Oil in embodiment is the 2# White Mineral Oils of Fu Lihua petrochemical industry Co., Ltd production；Bleeding agent be selected from F331,
One kind in F341, Basosol XP40 and XP50J, wherein F331 and F341 are the commercially available production of Hangzhou Ren Shan Science and Technology Ltd.s
Product, Basosol XP40 and XP50 are BASF nonionic surfactant commodity, and remaining raw material is that commercially available technical grade is common
Product.
（One）Bleeding agent Contrast on effect embodiment
By volume, dimethylbenzene 30%, trimethylbenzene 12.9%, octane 14.3%, White Mineral Oil 42.8% are mixed and is made into solvent, point
0.1ml penetrant JFC-2, F331, F341 is added not into three parts of 15ml solvent, concrete outcome is shown in Table 1：
The bleeding agent Contrast on effect of table 1 is tested
The speed of paraffin dissolution uses clear, wax-proofing agent technical conditions standard according to recovering the oil（SY/T6300-2009）Test obtains, wherein clearly
Cerate the speed of paraffin dissolution is higher, and it is stronger just to illustrate that it takes wax ability, and it is not quantitative to take wax ability.Table 1 illustrates using bleeding agent
The speed of paraffin dissolution of solvent, dispersion stabilization and take wax ability and be better than solvent without using bleeding agent.
（Two）Paraffin remover prepares embodiment
Embodiment 1
By volume, by dimethylbenzene 25%, trimethylbenzene 10%, octane 15%, White Mineral Oil 40%, bleeding agent F3310.6%, just pungent
Alcohol 7.05% and n-amyl alcohol 2.35% are well mixed, and gained liquid is paraffin remover 1 of the present invention, and its performance is shown in Table 2.
Embodiment 2
By volume, by dimethylbenzene 29%, trimethylbenzene 12%, octane 14%, White Mineral Oil 41%, bleeding agent F3410.67%, just pungent
Alcohol 1.1% and n-amyl alcohol 0.055% are well mixed, and gained liquid is paraffin remover 2 of the present invention.
The paraffin remover performance of table 2
| Outward appearance | Weak yellow liquid |
| Molten wax speed mg/min | 22 |
| Flash-point DEG C | 42 |
| Sulfur content μ g/g | 0 |
| Chlorinity mg/l | 0 |
| Condensation point DEG C | ＜ -60 |
As shown in Table 2, the speed of paraffin dissolution of the paraffin remover>40 DEG C of 20mg/min, open flash point ＞, ＜ -60 DEG C of condensation point, no
Sulfur-bearing, chlorine element.
By referring to exemplary embodiments, invention has been described, it should be appreciated that word wherein used is description
Property and explanatory vocabulary, rather than limited vocabulary.The present invention can be made within the scope of the claims by regulation
Go out modification, and the present invention is revised in without departing substantially from scope and spirit of the present invention.Although the present invention described in it
It is related to specific method, material and embodiment, it is not intended that the present invention is limited to wherein disclosed particular case, on the contrary, this
Invention can be extended to other all methods and applications with identical function.
Claims (8)
1. a kind of oil well oil-base paraffin remover, is made up of organic solvent, bleeding agent and solubilizer, the solubilizer is alcohols；Institute
Organic solvent is stated to be made up of aromatic hydrocarbon, saturated alkane and White Mineral Oil；The bleeding agent is fluorine carbon surfactant；The wax removal
The density of agent is 0.8-0.9g/cm3, the speed of paraffin dissolution>20mg/min, not sulfur-bearing, chlorine element, 40 DEG C of open flash point ＞, condensation point ＜-
60℃。
2. paraffin remover according to claim 1, it is characterised in that the aromatic hydrocarbon is C6-C10Aromatic hydrocarbons.
3. paraffin remover according to claim 2, it is characterised in that the aromatic hydrocarbon is in benzene, dimethylbenzene and trimethylbenzene
At least one.
4. paraffin remover according to claim 1, it is characterised in that the saturated alkane is C4-C10Alkane.
5. paraffin remover according to claim 4, it is characterised in that the saturated alkane is selected from pentane, hexane, heptane, pungent
At least one of alkane and nonane.
6. paraffin remover according to claim 1, it is characterised in that the solubilizer is C2-C10Alcohols.
7. paraffin remover according to claim 6, it is characterised in that the solubilizer is selected from n-octyl alcohol, n-amyl alcohol, isoamyl
At least one of alcohol, glycerine and ethylene glycol.
8. according to the paraffin remover described in any one of claim 1 to 7, it is characterised in that each component content is in the paraffin remover：
By volume, aromatic hydrocarbon 30%-45%, saturated alkane 10%-20%, White Mineral Oil 35%-45%, bleeding agent 0.1%-1%, increase
Solvent 1.0%-11.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410111758.2A CN104946222B (en) | 2014-03-24 | 2014-03-24 | A kind of oil well oil-base paraffin remover |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410111758.2A CN104946222B (en) | 2014-03-24 | 2014-03-24 | A kind of oil well oil-base paraffin remover |
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| CN104946222A CN104946222A (en) | 2015-09-30 |
| CN104946222B true CN104946222B (en) | 2018-01-09 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567201A (en) * | 2014-10-09 | 2016-05-11 | 中国石油天然气股份有限公司 | Oil well oil-based wax removing agent |
| CN105419759B (en) * | 2015-12-24 | 2018-05-04 | 陕西延安石油天然气有限公司 | A kind of high-efficiency environment friendly oil-base paraffin remover |
| CN107652955B (en) * | 2017-10-12 | 2020-12-29 | 中国海洋石油集团有限公司 | Efficient environment-friendly thickened oil organic scale dispersion blockage removing system and preparation method thereof |
| CN107828396A (en) * | 2017-10-24 | 2018-03-23 | 中国石油天然气股份有限公司 | High flashing point environment-friendly paraffin remover |
| CN108318370B (en) * | 2018-01-05 | 2020-04-21 | 西南石油大学 | Device for measuring wax dissolving rate and recovery ratio of paraffin remover under pressure and measuring method thereof |
| CN110105942B (en) * | 2018-02-01 | 2021-09-28 | 中国石油天然气股份有限公司 | Wax remover and preparation method and application thereof |
| CN108441199A (en) * | 2018-03-23 | 2018-08-24 | 北京捷贝通石油技术股份有限公司 | A kind of environment-friendly highly efficient heavy crude thinner |
| CN108467716B (en) * | 2018-03-28 | 2020-09-22 | 中国石油化工股份有限公司 | Oil-based paraffin remover |
| CN109762545B (en) * | 2019-02-27 | 2021-03-02 | 中国石油天然气股份有限公司长庆油田分公司第十二采油厂 | Oil well shaft deep-acting wax removing and preventing agent and preparation method thereof |
| CN111946309B (en) * | 2020-08-10 | 2022-10-04 | 王誉清 | Cold damage prevention dredging agent for low temperature resistant oil reservoir |
| CN112210352A (en) * | 2020-10-20 | 2021-01-12 | 克拉玛依新科澳石油天然气技术股份有限公司 | Oil well sucker rod soft stuck freeing agent, preparation method thereof and freeing use method |
| US11753578B2 (en) | 2021-04-26 | 2023-09-12 | Halliburton Energy Services, Inc. | Methods of treating paraffins, iron sulfide, hydrogen sulfide, and/or bacteria |
| CN116200177A (en) * | 2021-11-30 | 2023-06-02 | 天津大港油田滨港集团博弘石油化工有限公司 | High-flash-point environment-friendly oil-based paraffin remover without aromatic hydrocarbon |
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