CN104371685A - Paraffin remover and preparation method thereof - Google Patents

Paraffin remover and preparation method thereof Download PDF

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Publication number
CN104371685A
CN104371685A CN201410682196.7A CN201410682196A CN104371685A CN 104371685 A CN104371685 A CN 104371685A CN 201410682196 A CN201410682196 A CN 201410682196A CN 104371685 A CN104371685 A CN 104371685A
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CN
China
Prior art keywords
paraffin remover
alkali
paraffin
ether
ethylene glycol
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410682196.7A
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Chinese (zh)
Inventor
胡玉国
梁海臣
李靖
张冠洲
张有强
张凤跃
肖劲松
孙红桃
李东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN DAGANG OILFIELD BINGANG GROUP BOHONG PETROLEUM CHEMICAL CO Ltd
Original Assignee
TIANJIN DAGANG OILFIELD BINGANG GROUP BOHONG PETROLEUM CHEMICAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TIANJIN DAGANG OILFIELD BINGANG GROUP BOHONG PETROLEUM CHEMICAL CO Ltd filed Critical TIANJIN DAGANG OILFIELD BINGANG GROUP BOHONG PETROLEUM CHEMICAL CO Ltd
Priority to CN201410682196.7A priority Critical patent/CN104371685A/en
Publication of CN104371685A publication Critical patent/CN104371685A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/52Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • C09K8/524Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

The invention provides a paraffin remover and a preparation method thereof. The paraffin remover comprises the following components (in percentage by weight): 15%-25% of alcohol ether, 7%-12% of fatty alcohol-polyoxyethylene ether, 0.15%-0.25% of alkali, 13%-15% of antifreezing fluids, 5%-10% of ethylene glycol and 30%-40% of emulsifying agents, wherein the emulsifying agent is a mixture of oleic acid, linoleic acid, composite vinegar of resin and triethanolamine, the antifreezing fluids comprise propylene glycol butyl ether acetate and ethylene glycol butyl ether acetate, and the alkali is any one of sodium hydroxide or potassium hydroxide. The preparation method of the paraffin remover comprises the following steps: adding the alkali to the fatty alcohol-polyoxyethylene ether to generate a surface active agent; adding the surface active agent to alcohol ether, and stirring under the condition of normal temperature and pressure; and then sequentially adding the antifreezing fluids, the ethylene glycol and the emulsifying agents so as to obtain the paraffin remover. The paraffin remover provided by the invention has the advantages of safety in use, low possibility in ignition and low solidifying point and meets the requirement for usage under the condition of extreme cold.

Description

A kind of paraffin remover and preparation method thereof
Technical field
The invention belongs to oilfield chemistry Application Areas, be specifically related to a kind of paraffin remover and preparation method thereof.
Background technology
Wax is usual under formation conditions to be existed with liquid state.But in recovery process, along with temperature and pressure decline and light component are constantly overflowed, the wax in crude oil can be separated out gradually and is deposited on around the borehole wall and in production casing, damages oil bearing reservoir, the normal production in restriction oil field.According to the literature, China's major part exploitation crude oil is rich in wax, all more than 20%, some even high 40%. therefore, paraffin removal from oil well is the very important technical measures of of ensureing that waxy crude oil normally produces.
The paraffin removal from oil well technology that oil field is conventional, mainly contains mechanical paraffin removal technology, heating power Paraffin Removal technology, surface energy anti-wax technique, chemical agent Paraffin Removal technology, magnetic paraffin control technology and the large class of Microorganism Wax Removal And Paraffin Inhibition 6.Carrying out Paraffin Removal with chemical agent to oil well is current field use more a kind of Paraffin Removal technology.Chemical paraffin removing and inhibitor has oily molten type, water-soluble and emulsion-type three kinds of liquid wax removing agents, and the advantage of oily molten type wax removing agent is: stronger to crude oil adaptability; Molten wax speed is fast, adds instant effect after oil well; Product zero pour is low, uses also very convenient in the winter time.Its shortcoming is: relative density is little, and very unsuitable to moisture high oil, burning-point is low, easily catches fire, and must have rigorous fire measure during use.The advantage relative density of water-soluble wax removing agent is comparatively large, better to high-water-cut oil-producing well effect; Use safety, without ignition hazard.Its shortcoming is that to add the oil well speed that takes effect slower; Although the zero pour of water based dewaxing agent can reach one 20 DEG C now, at the use in winter of severe cold, its mobility is very poor.Emulsion-type wax removing agent has the fireballing advantage of the molten wax of oily molten type wax removing agent, due to this wax removing agent, its foreign minister taking liquid is water, because of and as water-soluble wax removing agent use safety, not easily to catch fire and relative density is larger, but this wax removing agent prepare and storage time must stablize, simultaneously preparation and duration of service conditional request higher.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide and a kind ofly meet wax removal requirement simultaneously its preparation method paraffin remover that is simple, that be extensively suitable for, its specific embodiment is:
A kind of paraffin remover, its feature is being, its moiety (weight ratio) comprises alcohol ether 15 ~ 25%, fatty alcohol-polyoxyethylene ether 7 ~ 12%, alkali content 0.15 ~ 0.25%, deicing fluid 13 ~ 15%, ethylene glycol 5 ~ 10%, emulsifying agent 30 ~ 40%.
Further, described emulsifying agent is the Composite vinegar of oleic acid, linolic acid and resin and the mixture of trolamine.
Further, described deicing fluid is propandiol butyl ether and 2-Butoxyethyl acetate composition, and its weight ratio is 30% ~ 70%:70% ~ 30%.
Described alkali is any one in sodium hydroxide or potassium hydroxide.
A kind of preparation method of paraffin remover: alkali is joined fatty alcohol-polyoxyethylene ether and generate tensio-active agent, joined in alcohol ether and stirred at normal temperature and pressure conditions, stir 10 ~ 30min, stirring velocity 200 ~ 300r/min, then add deicing fluid, ethylene glycol, emulsifying agent successively.Obtain paraffin remover.
Advantage of the present invention is: form water external emulsion after molten for oil type wax removing agent being added water and emulsifying agent and stablizer, after this milk sap adds oil well, carry out breakdown of emulsion and discharge to have excellent dissolution performance to wax under bottom temperature.Because foreign minister is water, because of and as water-soluble wax removing agent use safety, not easily to catch fire and relative density is comparatively large, add the zero pour that deicing fluid and ethylene glycol can reduce paraffin remover, its paraffin remover can well be improved because freeze the non-serviceable difficulty brought.
Embodiment
Embodiment 1:
A kind of paraffin remover, its feature is being, its moiety (weight ratio) comprises alcohol ether 25%, fatty alcohol-polyoxyethylene ether 12%, alkali content 0.2%, deicing fluid 15%, ethylene glycol 10%, emulsifying agent 30%.Described emulsifying agent is the Composite vinegar of oleic acid, linolic acid and resin and the mixture of trolamine.Described deicing fluid is propandiol butyl ether and 2-Butoxyethyl acetate composition, and its weight ratio is 30%:70%.Described alkali is potassium hydroxide.
Embodiment 2:
A kind of paraffin remover, its feature is being, its moiety (weight ratio) comprises alcohol ether 20%, fatty alcohol-polyoxyethylene ether 10%, alkali content 0.25%, deicing fluid 15%, ethylene glycol 10%, emulsifying agent 40%.Described emulsifying agent is the Composite vinegar of oleic acid, linolic acid and resin and the mixture of trolamine.Described deicing fluid is propandiol butyl ether and 2-Butoxyethyl acetate composition, and its weight ratio is 40%:60%.Described alkali is sodium hydroxide.
Embodiment 3:
A kind of paraffin remover, its feature is being, its moiety (weight ratio) comprises alcohol ether 25%, fatty alcohol-polyoxyethylene ether 8%, alkali content 0.25%, deicing fluid 12%, ethylene glycol 10%, emulsifying agent 40%.Further, described emulsifying agent is the Composite vinegar of oleic acid, linolic acid and resin and the mixture of trolamine, and described deicing fluid is propandiol butyl ether and 2-Butoxyethyl acetate composition, and its weight ratio is 50%:50%.Described alkali is potassium hydroxide.
Above embodiment adopts following method to prepare:
Alkali is joined fatty alcohol-polyoxyethylene ether and generate tensio-active agent, joined in alcohol ether and stir, stir 30min, stirring velocity 250r/min, then add deicing fluid, ethylene glycol, emulsifying agent successively, obtain paraffin remover.The performance of the paraffin remover of preparation goes out excellent performance, as following table:
The performance index of paraffin remover
Sequence number Project Index
1 Density, g/cm 3 ≥0.870
2 Zero pour, DEG C ≤-5
3 Flash-point (remaining silent), DEG C ≥3
4 The speed of paraffin dissolution, g/min ≥0.016
5 Dithiocarbonic anhydride content, % ≤0.02
6 Content of organic chloride, % ≤0.02
The above is only preferred embodiment of the present invention, not does any pro forma restriction to technical scheme of the present invention.Every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical scheme of the present invention.

Claims (5)

1. a paraffin remover, its feature is being, its moiety (weight ratio) comprises alcohol ether 15 ~ 25%, fatty alcohol-polyoxyethylene ether 7 ~ 12%, alkali content 0.15 ~ 0.25%, deicing fluid 13 ~ 15%, ethylene glycol 5 ~ 10%, emulsifying agent 30 ~ 40%.
2. a kind of paraffin remover according to claim 1, it is characterized in that, described emulsifying agent is the Composite vinegar of oleic acid, linolic acid and resin and the mixture of trolamine.
3. a kind of paraffin remover according to claim 1, is characterized in that, described deicing fluid is propandiol butyl ether and 2-Butoxyethyl acetate composition, and its weight ratio is 30% ~ 70%:70% ~ 30%.
4. a kind of paraffin remover according to claim 1, is characterized in that, described alkali is any one in sodium hydroxide or potassium hydroxide.
5. the preparation method of a paraffin remover, it is characterized in that, alkali is joined fatty alcohol-polyoxyethylene ether and generate tensio-active agent, joined in alcohol ether and stirred at normal temperature and pressure conditions, stir 10 ~ 30min, stirring velocity 200 ~ 300r/min, then add deicing fluid, ethylene glycol, emulsifying agent successively, obtain paraffin remover.
CN201410682196.7A 2014-11-24 2014-11-24 Paraffin remover and preparation method thereof Pending CN104371685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410682196.7A CN104371685A (en) 2014-11-24 2014-11-24 Paraffin remover and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201410682196.7A CN104371685A (en) 2014-11-24 2014-11-24 Paraffin remover and preparation method thereof

Publications (1)

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CN104371685A true CN104371685A (en) 2015-02-25

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105038749A (en) * 2015-08-27 2015-11-11 山东聚鑫化工有限公司 Oil-in-water paraffin remover
CN105238377A (en) * 2015-09-23 2016-01-13 山东聚鑫化工有限公司 Water-based wax cleaning agent
CN105255468A (en) * 2015-10-28 2016-01-20 中国石油化工股份有限公司 Emulsion type paraffin remover and inhibitor and preparation method thereof
CN105482796A (en) * 2015-12-03 2016-04-13 高大元 Preparation method of environmentally friendly oil well paraffin remover
CN108822822A (en) * 2018-07-19 2018-11-16 佛山皖阳生物科技有限公司 A kind of preparation method of heat-resistant salt form biomass paraffin remover
CN111410947A (en) * 2020-03-20 2020-07-14 克拉玛依新科澳实验检测有限公司 Composite wax-proofing agent and preparation method thereof
CN112094631A (en) * 2020-09-15 2020-12-18 郑州德融科技有限公司 Paraffin remover for oil extraction and production equipment thereof
CN112195019A (en) * 2020-11-11 2021-01-08 榆林学院 Emulsion type paraffin removal and prevention agent
CN112898621A (en) * 2021-03-16 2021-06-04 青岛瑞诺化工有限公司 Emulsifier, preparation method thereof and application thereof in latex foaming product

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1273997A (en) * 1999-05-17 2000-11-22 王素君 Method for removing deposited dirt from oil well with chemical agent
CN101376803A (en) * 2008-09-23 2009-03-04 赵芳 Anti-waxing agent special for heavy crude well thermal recovery
CN102358833A (en) * 2011-08-30 2012-02-22 北京恩瑞达科技有限公司 Paraffin removing and resisting agent for oil well
CN102888214A (en) * 2012-10-24 2013-01-23 吕永恒 Emulsion-type oil well viscosity-breaking paraffin removing and inhibiting agent and application method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1273997A (en) * 1999-05-17 2000-11-22 王素君 Method for removing deposited dirt from oil well with chemical agent
CN101376803A (en) * 2008-09-23 2009-03-04 赵芳 Anti-waxing agent special for heavy crude well thermal recovery
CN102358833A (en) * 2011-08-30 2012-02-22 北京恩瑞达科技有限公司 Paraffin removing and resisting agent for oil well
CN102888214A (en) * 2012-10-24 2013-01-23 吕永恒 Emulsion-type oil well viscosity-breaking paraffin removing and inhibiting agent and application method thereof

Non-Patent Citations (2)

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李子东,等: "《胶黏剂助剂》", 28 February 2005, 北京:化学工业出版社 *
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105038749A (en) * 2015-08-27 2015-11-11 山东聚鑫化工有限公司 Oil-in-water paraffin remover
CN105238377A (en) * 2015-09-23 2016-01-13 山东聚鑫化工有限公司 Water-based wax cleaning agent
CN105255468A (en) * 2015-10-28 2016-01-20 中国石油化工股份有限公司 Emulsion type paraffin remover and inhibitor and preparation method thereof
CN105482796A (en) * 2015-12-03 2016-04-13 高大元 Preparation method of environmentally friendly oil well paraffin remover
CN108822822A (en) * 2018-07-19 2018-11-16 佛山皖阳生物科技有限公司 A kind of preparation method of heat-resistant salt form biomass paraffin remover
CN111410947A (en) * 2020-03-20 2020-07-14 克拉玛依新科澳实验检测有限公司 Composite wax-proofing agent and preparation method thereof
CN112094631A (en) * 2020-09-15 2020-12-18 郑州德融科技有限公司 Paraffin remover for oil extraction and production equipment thereof
CN112195019A (en) * 2020-11-11 2021-01-08 榆林学院 Emulsion type paraffin removal and prevention agent
CN112898621A (en) * 2021-03-16 2021-06-04 青岛瑞诺化工有限公司 Emulsifier, preparation method thereof and application thereof in latex foaming product

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Application publication date: 20150225

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