CN108467716A - A kind of oil-base paraffin remover - Google Patents
A kind of oil-base paraffin remover Download PDFInfo
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- CN108467716A CN108467716A CN201810262502.XA CN201810262502A CN108467716A CN 108467716 A CN108467716 A CN 108467716A CN 201810262502 A CN201810262502 A CN 201810262502A CN 108467716 A CN108467716 A CN 108467716A
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- oil
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- paraffin remover
- base paraffin
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
- F17D1/17—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by mixing with another liquid, i.e. diluting
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
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- Water Supply & Treatment (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The present invention provides a kind of oil-base paraffin removers, in parts by weight, including：75 85 parts of organic solvent, 15 25 parts of cosolvent, 0.5 1.2 parts of bleeding agent and 1 3.5 parts of solubilizer.The raw material of oil-base paraffin remover of the present invention is easy to get, and proportion is higher than 0.85g/cm3, flash-point is higher than 60 DEG C, and without substances such as S, Cl, is conducive to transport, storage and site safety construction.In addition, 45 DEG C of the speed of paraffin dissolution of oil-base paraffin remover of the present invention are 0.040g/min to 0.056g/min, there is higher the speed of paraffin dissolution on the basis of safe to use.
Description
Technical field
The invention belongs to oilfield chemical field, in particular it relates to a kind of oil-base paraffin remover, more specifically, this hair
It is bright to be related to a kind of high-flash oil-base paraffin remover that the feature of environmental protection is strong.
Background technology
During the phenomenon that oil well paraffinication is generally existing in oil field development, especially thickened oil recovery, wax content is higher, opens
With the reduction of pressure, temperature during adopting, the wax contained in crude oil is gradually precipitated, and sinks in oil well pipe and ground gathering line
Long-pending paraffin can cause the reduction of pipeline effective sectional area even to block, and cause pump efficiency to decline, oilwell produced fluid amount declines, sucker rod
It can fracture because of overload (uplink load and friction in down stroke increase), Oil Well Back Pressure increases and pumping unit power consumption is thus caused to increase
And the problems such as failure rate rising.Paraffin deposit problem have become oil exploitation, collection it is defeated during a major issue.The whole world
The economic loss caused by paraffin deposit and the expense for paraffin deposit control are up to tens dollars every year.
It is smoothed out to ensure that oil extraction sum aggregate is defeated, the oil well of wax deposition need to carry out Paraffin Removal.Chemically to oil
It is the more extensive method of current field use that well, which carries out wax removal and wax control,.Most popular at present is the wax removal using paraffin remover
Technology.For example, the american documentation literature of Publication No. US3481870A, US3077929A, US3422265A and US4380268A,
It is all introduced in the american documentation literature of Patent No. US6176243B1 and the british patent document of Publication No. GB1178137A
With surfactant and mutual solvent water base paraffin remover as main component.Water base paraffin remover has certain wax control result, but
The speed of paraffin dissolution is low, and density is larger, may invade near wellbore zone and cause formation damage.Oil-base paraffin remover is because of its speed of paraffin dissolution
The problem of height, effect are good, have good promotion prospect, but there are still two aspects：When low-flash, for example, Publication No.
All disclose oil-base paraffin remover in the Chinese patent literature of CN1076002A and CN1560175A, but paraffin remover component therein
In containing industrial solvent, petroleum ether, flash-point be less than 0 DEG C, work progress safety is poor；Second is that generally by CS2、CH3Cl, mixed benzene
Or crude benzol is constituted, for example, it is clear to disclose a kind of scale removal edible vegetable oil of removing contamination in Publication No. CN102492408A Chinese patent literatures
Cerate contains chloroform in being formulated, has strong impulse smell, be not only harmful to human body, and contains higher sulphur, chlorine corrosion
Property compound, cause to will produce corrosion during crude oil following process, cause the catalyst poisoning employed in oil refining process, and
Price is high, has pollution waste liquid, to make its use be restricted.
Therefore, how to enhance the safety of paraffin remover, and improve its feature of environmental protection, be one in current paraffin remover research work
A main problem.
Invention content
The object of the present invention is to provide a kind of high-flash oil-base paraffin removers that the feature of environmental protection is strong, to solve to exist in the prior art
The above problem.
The oil-base paraffin remover of the present invention, in parts by weight, including：75-85 parts of organic solvent, 15-25 parts help
Solvent, the solubilizer of 0.5-1.2 parts of bleeding agent and 1-3.5 part.
Wherein, in parts by weight, including：75-80 parts of organic solvent, 20-22 parts of cosolvent, 0.8-1 parts
Bleeding agent and 2.5-3 parts of solubilizer.
Wherein, in parts by weight, including：78 parts of organic solvent, 21 parts of cosolvent, 1 part of bleeding agent and 3
The solubilizer of part.
Wherein, the organic solvent is the isoparaffin solvent oil that carbon atom number is 6 to 8 on main chain.
Wherein, the isoparaffin solvent oil that carbon atom number is 6 to 8 on the main chain be 2,2- dimethyl -3- ethyl hexanes,
Any one or more in 2,3,5- trimethyls -4- propyl heptane and 2,2,5,6- tetramethyl -4- ethyl octanes.
Wherein, the cosolvent is ethyl cellosolve acetate and/or ethylene glycol phenyl ether.
Wherein, the bleeding agent is nonionic surfactant.
Wherein, the nonionic surfactant is Sucker plucker polyoxyethylene ether.
Wherein, the solubilizer is the third diethanol.
Wherein, the density of the oil-base paraffin remover is 0.85g/cm3To 0.95g/cm3, 45 DEG C of the speed of paraffin dissolution 0.040g/min
To 0.056g/min, 60 DEG C of open flash point ＞, ＜ -40 DEG C of condensation point.
Compared with the prior art, technical scheme of the present invention has the advantages that：
The raw material of oil-base paraffin remover of the present invention is easy to get, and proportion is higher than 0.85g/cm3, flash-point is higher than 60 DEG C, and is free of S, Cl
Equal substances are conducive to transport, storage and site safety construction.In addition, 45 DEG C of the speed of paraffin dissolution of oil-base paraffin remover of the present invention are
0.040g/min to 0.056g/min has higher the speed of paraffin dissolution on the basis of safe to use.
Specific implementation mode
In order to fully understand the purpose of the present invention, feature and effect, by following specific implementation modes, the present invention is made detailed
It describes in detail bright.For the process of the present invention in addition to following the description, remaining is all made of the conventional method or device of this field.Unless otherwise
Illustrate, otherwise the term involved in the present invention all has the normally understood meaning of those skilled in the art.
Paraffin remover refers to the chemicals that can remove wax deposit, can be divided into oil-base paraffin remover, water base paraffin remover, oil-in-water
Type paraffin remover three classes, paraffin remover are generally used for the wax fouling in oilfield removing oil pipe, and dredging oil pipe improves oil production.Its
In, oil-base paraffin remover is the stronger a kind of paraffin remover of dissolving paraffin ability.Currently, the molten wax effect of oil-base paraffin remover generally existing is not
Ideal, and safety is poor, it is harmful and easily cause environmental pollution.For these problems, inventor is by research, to oil
The component of base paraffin remover is optimized with constituent content, and to propose, a kind of feature of environmental protection is strong and the molten effective high-flash of wax
Oil-base paraffin remover.
Specifically, oil-base paraffin remover of the invention includes following component in parts by weight：75-85 parts organic molten
Agent, 15-25 parts of cosolvent, the solubilizer of 0.5-1.2 parts of bleeding agent and 1-3.5 part.Preferably, oil base of the invention is clear
Cerate includes following component in parts by weight：75-80 parts of organic solvent, 20-22 parts of cosolvent, 0.8-1 parts
Bleeding agent and 2.5-3 parts of solubilizer.It is highly preferred that the oil-base paraffin remover of the present invention includes in parts by weight as follows
Component：78 parts of organic solvent, 21 parts of cosolvent, 1 part of bleeding agent and 3 parts of solubilizer.
The present invention is by compounding organic solvent, cosolvent, bleeding agent and solubilizer according to special ratios, each component
Between generate synergistic effect, to promote molten wax effect.
Organic solvent can by oil well due to temperature and pressure coalescence wax quickly and more completely dissolve.Preferably, have
Solvent use carbon atom number on main chain for 6 to 8 isoparaffin solvent oil.Inventors discovered through research that when the present invention's
When oil-base paraffin remover uses on main chain carbon atom number for 6 to 8 isoparaffin solvent oil as organic solvent, by with hydrotropy
Agent, bleeding agent and solubilizer synergistic effect, being capable of the microwax with higher branch degree reluctant to conventional paraffin remover
With better elimination effect.It is highly preferred that organic solvent is 2,2- dimethyl -3- ethyl hexanes, 2,3,5- trimethyl -4- third
Any one or more in base heptane and 2,2,5,6- tetramethyl -4- ethyl octanes.The 2,2- dimethyl-that regular market purchase obtains
3- ethyl hexanes, 2,3,5- trimethyls -4- propyl heptane and 2,2,5,6- tetramethyl -4- ethyl octanes are used equally for the present invention
In.
Cosolvent has compatibility good, and organic solvent, bleeding agent and solubilizer three can be made to form stable homogeneous system.It is excellent
Ethyl cellosolve acetate, ethylene glycol phenyl ether, ethyl cellosolve acetate and ethylene glycol phenyl ether may be used in selection of land, cosolvent
Combination, they have the characteristics that volatility is low, permeability is strong, can preferably increase organic solvent to complicated waxy dissolving energy
Power increases the speed of paraffin dissolution and molten wax amount.
Bleeding agent has the function of permeating and promoting dispersion.Preferably, bleeding agent uses nonionic surfactant.When making
When waxy with organic solvent dissolving, the addition of appropriate nonionic surfactant can penetrate into waxy deep, and high concentration is promoted to have
Solvent is spread to low concentration direction, promotes waxy dissolving.A kind of particularly preferred nonionic surfactant is that Sucker plucker is poly-
Ethylene oxide ether.The Sucker plucker polyoxyethylene ether that regular market purchase obtains is used equally in the present invention.
The effect of solubilizer is solubilising.Solubilizer is preferably alcohols, more preferably the third diethanol, regular market purchase obtain third
Diethanol is used equally in the present invention.Due to it is waxy include polar component and nonpolarity element, the present invention uses organic molten
Agent is nonpolar solvent, therefore, using the third diethanol as solubilizer, according to the similar principle that mixes, by alcohols and organic molten
Being used cooperatively for agent can be completely dissolved waxy.Also, the solubilizer that the present invention uses not sulfur-bearing, chlorine have high-flash, both
Water phase is dissolved in, and dissolves in oil phase, therefore grease can be significantly enhanced and mutually dissolved each other.
Pass through the synergistic effect of organic solvent, cosolvent, bleeding agent and solubilizer so that oil-base paraffin remover ratio of the invention
It is higher than 0.85g/cm again3, flash-point is higher than 60 DEG C, to be conducive to transport, storage and site safety construction；According to SY/T 6300-
The oil-base paraffin remover of the 2009 standard tests present invention is 0.040g/min to 0.056g/min in 45 DEG C of the speed of paraffin dissolution, hence it is evident that is higher than
Minimum 0.016g/min in the standard so that oil-base paraffin remover of the invention also has higher on the basis of safe handling
The speed of paraffin dissolution；In addition, the raw material that the oil-base paraffin remover of the present invention uses is easy to get and safety is higher so that oil base of the invention is clear
Cerate is without the substances such as S, Cl, to human body, environmentally friendly.
The oil-base paraffin remover of the present invention can be used conventional method and be uniformly mixed.For example, according to aforementioned proportion, it will be organic
Solvent and cosolvent are added in mixed tune device, are stirred 5min with 1000r/min, are added solubilizer, continue to stir 5min, then add
Enter bleeding agent, continues to stir 5min, you can obtain the oil-base paraffin remover of the present invention.
Embodiment
It is further illustrated the present invention below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions, or according to quotient
Product specification selects.
The waxy TK915 wells for being derived from system in Tahe Oilfield in following embodiments, the insoluble matter 0.13wt% of dirt containing stratum are saturated alkane
Hydrocarbon 72.47wt% (alkane distribution peaks C57-C60), aromatic hydrocarbon 7.49wt%, gum asphalt 20.78wt%, wherein C35+
Content 27.5%.
The source of each substance used in following embodiments is as follows：
| Substance | Source and model |
| 2,2- dimethyl -3- ethyl hexanes | Exxon Mobil Isopar L-type solvent naphthas |
| 2,3,5- trimethyl -4- propyl heptane | Exxon Mobil Isopar L-type solvent naphthas |
| 2,2,5,6- tetramethyl -4- ethyl octanes | Exxon Mobil Isopar L-type solvent naphthas |
| Ethyl cellosolve acetate | Jiangmen city apple Chemical Co., Ltd. |
| Ethylene glycol phenyl ether | Changzhou Chi Yuan Chemical Co., Ltd.s |
| Sucker plucker polyoxyethylene ether | The big magnificent great achievement medication chemistry Co., Ltd in Wuhan |
| Third diethanol | Shandong West Asia chemical industry Co., Ltd |
The assay method used in following embodiments is as follows：
Proportion：GB/T 4472-2011 chemical products density, the measurement of relative density
Flash-point (i.e. open flash point)：GB/T3536-2008《The measurement Cleveland open cup of Flash Point for Petroleum Products and burning point
Method》
45 DEG C of the speed of paraffin dissolution：SY/T 6300-2009 standards
Embodiment 1
The composition of the oil-base paraffin remover of the present embodiment is as shown in table 1.
The preparation method of the oil-base paraffin remover of the present embodiment：By 75g 2,2,5,6- tetramethyls -4- ethyls octanes and 22g second
Glycol ether acetic acid esters is added in mixed tune device, is stirred 5min with 1000r/min, is added the third diethanols of 2.5g, continue to stir
5min adds 0.5g Sucker plucker polyoxyethylene ether, continues to stir 5min to get to the oil-base paraffin remover of the present embodiment.
The performance of the oil-base paraffin remover of the present embodiment is as shown in table 2.
Embodiment 2 is to embodiment 7
The composition of embodiment 2 to embodiment 7 is as shown in table 1.Preparation method is same as Example 1, differs only in having
Specific substance used by solvent, cosolvent, bleeding agent and solubilizer and proportioning are adjusted accordingly according to table 1.
The performance of embodiment 2 to the oil-base paraffin remover of embodiment 7 is as shown in table 2.
Comparative example 1
The composition of the paraffin remover of comparative example 1 is：2,2,5,6- tetramethyl -4- ethyl octane 75g, Sucker plucker polyoxyethylene ether
0.5g and the third diethanol 2.5g.
The preparation method of the paraffin remover of comparative example 1：75g 2,2,5,6- tetramethyl -4- ethyl octanes are added to mixed tune device
In, the third diethanols of 2.5g are added, 5min is stirred with 1000r/min, 0.5g Sucker plucker polyoxyethylene ether is added, continues to stir
5min is to get to the paraffin remover of comparative example 1.
The performance of the paraffin remover of comparative example 1 is as shown in table 2.
Comparative example 2
The composition of the paraffin remover of comparative example 2 is：2,2,5, the 6- (Hangzhoupro tetramethyl -4- ethyls octane 96.5g, bleeding agent F341
Zhou Ren China firs Science and Technology Ltd., fluorine carbon surfactant) 1g, solubilizer is n-octyl alcohol and n-amyl alcohol by 20:1 (w/w's) is mixed
Close object 2.5g.
The preparation method of the paraffin remover of comparative example 2：96.5g 2,2,5,6- tetramethyl -4- ethyl octanes are added to mixed tune
In device, the mixture 2.5g of n-octyl alcohol and n-amyl alcohol is added, 5min is stirred with 1000r/min, adds 1g bleeding agent F341,
Continue to stir 5min to get to the paraffin remover of comparative example 2.
The performance of the paraffin remover of comparative example 2 is as shown in table 2.
1 unit of table：Gram
Table 2
The above embodiment is a preferred embodiment of the present invention, but the embodiment of present aspect is not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by substitute, modification, combination, change, simplify
Deng should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of oil-base paraffin remover, which is characterized in that in parts by weight, including：75-85 parts of organic solvent, 15-25 parts
Cosolvent, the solubilizer of 0.5-1.2 parts of bleeding agent and 1-3.5 part.
2. oil-base paraffin remover according to claim 1, which is characterized in that in parts by weight, including：75-80 parts
Organic solvent, 20-22 parts of cosolvent, the solubilizer of 0.8-1 parts of bleeding agent and 2.5-3 part.
3. oil-base paraffin remover according to claim 1, which is characterized in that in parts by weight, including：78 parts organic
Solvent, 21 parts of cosolvent, 1 part of bleeding agent and 3 parts of solubilizer.
4. oil-base paraffin remover according to any one of claims 1 to 3, which is characterized in that the organic solvent is on main chain
The isoparaffin solvent oil that carbon atom number is 6 to 8.
5. oil-base paraffin remover according to claim 4, which is characterized in that the isomery that carbon atom number is 6 to 8 on the main chain
Alkane solvent oil is 2,2- dimethyl -3- ethyl hexanes, 2,3,5- trimethyls -4- propyl heptane and 2,2,5,6- tetramethyls -4-
Any one or more in ethyl octane.
6. oil-base paraffin remover according to any one of claims 1 to 3, which is characterized in that the cosolvent is ethylene glycol ethyl ethers
Ether acetic acid ester and/or ethylene glycol phenyl ether.
7. oil-base paraffin remover according to any one of claims 1 to 3, which is characterized in that the bleeding agent is nonionic table
Face activating agent.
8. oil-base paraffin remover according to claim 7, which is characterized in that the nonionic surfactant is that Sucker plucker is poly-
Ethylene oxide ether.
9. oil-base paraffin remover according to any one of claims 1 to 3, which is characterized in that the solubilizer is the third diethanol.
10. oil-base paraffin remover according to any one of claims 1 to 3, which is characterized in that the density of the oil-base paraffin remover
For 0.85g/cm3To 0.95g/cm3, 60 DEG C of 45 DEG C of the speed of paraffin dissolution 0.040g/min to 0.056g/min, open flash point ＞, condensation point
＜ -40 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810262502.XA CN108467716B (en) | 2018-03-28 | 2018-03-28 | Oil-based paraffin remover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262502.XA CN108467716B (en) | 2018-03-28 | 2018-03-28 | Oil-based paraffin remover |
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| CN108467716B CN108467716B (en) | 2020-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113930225A (en) * | 2021-10-22 | 2022-01-14 | 中国石油化工股份有限公司 | Wax crystal dispersing agent for reviving high-wax-content condensate gas reservoir and preparation method thereof |
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| CN1560175A (en) * | 2004-02-25 | 2005-01-05 | 石油大学(华东) | Clear type high-efficient paraffin removal agent |
| CN102146281A (en) * | 2011-01-25 | 2011-08-10 | 中国石油天然气股份有限公司 | Oil-soluble paraffin-removal viscosity breaker |
| CN104946222A (en) * | 2014-03-24 | 2015-09-30 | 中国石油化工股份有限公司 | Oil-base paraffin remover for oil wells |
| CN105419759A (en) * | 2015-12-24 | 2016-03-23 | 陕西延安石油天然气有限公司 | High-effective environment-friendly oil-based wax removal agent |
| 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 |
| 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 |
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2018
- 2018-03-28 CN CN201810262502.XA patent/CN108467716B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560175A (en) * | 2004-02-25 | 2005-01-05 | 石油大学(华东) | Clear type high-efficient paraffin removal agent |
| CN102146281A (en) * | 2011-01-25 | 2011-08-10 | 中国石油天然气股份有限公司 | Oil-soluble paraffin-removal viscosity breaker |
| CN104946222A (en) * | 2014-03-24 | 2015-09-30 | 中国石油化工股份有限公司 | Oil-base paraffin remover for oil wells |
| 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 |
| CN105419759A (en) * | 2015-12-24 | 2016-03-23 | 陕西延安石油天然气有限公司 | High-effective environment-friendly oil-based wax removal agent |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113930225A (en) * | 2021-10-22 | 2022-01-14 | 中国石油化工股份有限公司 | Wax crystal dispersing agent for reviving high-wax-content condensate gas reservoir and preparation method thereof |
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| CN108467716B (en) | 2020-09-22 |
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