CN101560301A - Emulsification method of oil pipeline drag reduction polymer suspension - Google Patents

Emulsification method of oil pipeline drag reduction polymer suspension Download PDF

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Publication number
CN101560301A
CN101560301A CNA200810104309XA CN200810104309A CN101560301A CN 101560301 A CN101560301 A CN 101560301A CN A200810104309X A CNA200810104309X A CN A200810104309XA CN 200810104309 A CN200810104309 A CN 200810104309A CN 101560301 A CN101560301 A CN 101560301A
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temperature
accounts
alcohol
oil pipeline
drag
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CN101560301B (en
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李春漫
刘兵
李国平
鲍旭晨
徐海红
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China Oil and Gas Pipeline Network Corp
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Petrochina Co Ltd
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Abstract

The invention relates to an emulsification method of an oil pipeline drag reduction polymer suspension. Relates to the technical field of organic macromolecular compounds, their preparation and pipeline systems. According to the total weight of 100, the alpha-olefin-styrene copolymer accounts for 20-40%, the coating agent accounts for 0.04-6%, the emulsifier accounts for 0.02-4%, the alcohol-based system accounts for 50-80%, and the refrigerant is mixed in a proper amount, the alpha-olefin-styrene copolymer, the coating agent and the refrigerant are mixed, and the polymer is ground at the temperature lower than the glass transition temperature of polymer particles; then emulsifying one or more emulsifiers in a proportion in an alcohol-based system at high temperature; when the temperature of the emulsified system is reduced to normal temperature, the copolymer particles which are crushed in advance are added according to a certain proportion under the condition of stirring, and the mixture is stirred to form stable drag reduction suspension. The invention has high solid content and low viscosity, and improves the high-temperature performance and suspension stability of the suspension dispersion system.

Description

A kind of emulsification method of drag-reduction polymer suspension of oil pipeline
Technical field
The present invention is a kind of emulsification method of drag-reduction polymer suspension of oil pipeline.Relate to organic macromolecular cpd, their preparation and tubing system technical field.
Background technology
The flow improver technology of oil pipeline has had very big progress in recent years, and the stability and the flowability of drag reducing suspensions are greatly improved, and successively has to authorize or tens of the patents of application.Adopt generally at present and dispersing method has invention in the patent " alpha-olefin-vinylbenzene ultrahigh molecular weight copolymer suspended dispersed method " (application number is 03109630.1) preferably cellosolve-straight chain alcohol dispersion technology, adopt cellosolve to replace water to adjust the density of dispersion system, make the active constituent content height, cold resistance can be excellent, but high temperature resistant property is relatively poor, is difficult to use in summer and high temperature area; The patent " manufacture method of drag-reduction polymer suspension " (application number is 02811155.9) of U.S. Ke Nuoke application, exist the high temperature resistant property of product relatively poor equally, defectives such as product stability greatly reduces in surpassing 60 ℃ environment for use, and mobile and injection efficiency is not good.
Summary of the invention
The objective of the invention is to invent the emulsification method that a kind of solid content height, viscosity are low, improve a kind of drag-reduction polymer suspension of oil pipeline of suspended dispersed system's high-temperature behavior and suspension stability.
The present invention's frictional reducing polymer is to be obtained by patent application " a kind of preparation method of drag reduction agent for oil product through pipelines " (application number is 200510124214.0), i.e. the ultrahigh molecular weight copolymer that is obtained by alpha-olefin-styrene polymerization.
The ultrahigh molecular weight copolymer that the present invention is obtained by alpha-olefin-styrene polymerization, coating, refrigerant, emulsifying agent, alcohol base system are formed.In gross weight is that alpha-olefin-styrol copolymer accounts for 20~40% in 100, and coating accounts for 0.04~6%, and alcohol base system accounts for 50~80%, and emulsifying agent accounts for 0.02~4%.
Wherein:
Coating is selected from saturated fatty acid wax, and it is Stearyl Amine, bis-stearamides or their mixture;
Refrigerant is selected from liquid nitrogen, liquid helium, liquid argon or its mixture;
Emulsifying agent is a kind of or their mixture such as tween, sapn, stearyl alcohol;
Alcohol base system is a kind of or their mixture such as Virahol, propyl carbinol, Pentyl alcohol, n-hexyl alcohol, n-Octanol.
The emulsification method of this drag-reduction polymer suspension is:
Earlier alpha-olefin-styrol copolymer is mixed with coating and refrigerant, be lower than grinding multipolymer under the copolymer pellet second-order transition temperature (below 100 ℃), the coating addition is 10~20% of a multipolymer, and the refrigerant addition is 5~30% of a multipolymer.
The alcohol base system that to measure in proportion again adds in the high-speed emulsifying machine, under agitation emulsifying agent is put into high-speed emulsifying machine at normal temperatures by mass ratio then, slowly heat up, when treating that system temperature rises to 40~45 ℃, press the mixture that mass ratio adds saturated fatty acid wax, continue to be warmed up to 65~70 ℃, after the emulsification 5 to 10 minutes, stop heating, when treating that system temperature drops to normal temperature, under condition of stirring, add the copolymer pellet that crushes in advance by a certain percentage, stirring is carried out stopping after 10~15 minutes, forms stable drag reducing suspensions.
Characteristics of the present invention are by high temperature emulsification, and the drag reducing suspensions high temperature resistant property that makes final formation is than the obvious enhancing of existing procucts.
This method is simple to operate, reaction process is simple relatively, formed resistant to elevated temperatures drag reducing suspensions by high temperature emulsification, and is good 70 ℃ of current downflow through test in place, and good flowability can keep 6 months at least.Its solid content height, viscosity are low, have improved suspended dispersed system high-temperature behavior and suspension stability.
Embodiment
Embodiment. also the present invention is further illustrated with this example the specific embodiment of the present invention to be described.To generate 100Kg suspension is example, effective concentration 25%.Its composition is: the ultrahigh molecular weight copolymer that alpha-olefin-styrene polymerization obtains, coating, refrigerant, emulsifying agent and alcohol base system; Coating is selected ethylene bis stearamide for use, and emulsifying agent is selected span 80, polysorbate60, stearyl alcohol span 80 for use, and alcohol base system is selected n-hexyl alcohol+n-Octanol for use.
Earlier alpha-olefin-styrol copolymer 25Kg is mixed with ethylene bis stearamide coating 1.5Kg and liquid nitrogen freezing agent (20%), be lower than grinding multipolymer under the copolymer pellet second-order transition temperature (105 ℃).In homogenizer, add n-hexyl alcohol+n-Octanol (by 1: 1) 69.2Kg, under condition of stirring, insert span 80 (0.9Kg), polysorbate60 (0.3Kg), stearyl alcohol 0.6Kg, stir be heated to 45 ℃ after, add ethylene bis stearamide (2.5Kg) again, stop heating after slowly being heated to 65 ℃.When treating that system temperature drops to normal temperature, under brute force stirs, in emulsion, add finished product powder 26.5Kg, treat to stop after the emulsification in 10 to 15 minutes evenly.
The suspension that present method forms heated 30 days in 70 ℃ of water-baths repeatedly, and it is mobile to keep good, occur reuniting or demixing phenomenon, and existing product just lost flowability in 3 days in 65 ℃ water-bath.
These routine raw material sources are direct, simple to operate, reaction conditions is gentle, process is simple relatively, low for equipment requirements, and the suspension high temperature resistant property of formation strengthens, and is a kind of good suspended dispersed method.

Claims (5)

1. the emulsification method of a drag-reduction polymer suspension of oil pipeline, it is characterized in that by being in 100 in gross weight, alpha-olefin-styrol copolymer accounts for 20~40%, coating accounts for 0.04~6%, emulsifying agent accounts for 0.02~4%, and alcohol base system accounts for 50~80%, the composition proportion that refrigerant is an amount of, earlier alpha-olefin-styrol copolymer is mixed with coating and refrigerant, grind polymkeric substance being lower than under the polymer beads second-order transition temperature; One or more emulsifying agents that to measure in proportion again at high temperature carry out emulsification in alcohol base system; When treating that system temperature drops to normal temperature after the emulsification, under condition of stirring, add the copolymer pellet that crushes in advance by a certain percentage, stir, form stable drag reducing suspensions.
2. the emulsification method of a kind of drag-reduction polymer suspension of oil pipeline according to claim 1, it is characterized in that alpha-olefin-styrol copolymer is mixed with the refrigerant that is selected from liquid nitrogen, liquid helium, liquid argon or its mixture with saturated fatty acid wax coating is in following ratio: the coating addition is 10~20% of a multipolymer, and the refrigerant addition is 5~30% of a multipolymer.
3. the emulsification method of a kind of drag-reduction polymer suspension of oil pipeline according to claim 1, it is characterized in that it is that alcohol base system is added in the high-speed emulsifying machine that emulsifying agent at high temperature carries out emulsification in alcohol base system, under agitation emulsifying agent is put into high-speed emulsifying machine at normal temperatures by mass ratio then, slowly heat up, when treating that system temperature rises to 40~45 ℃, press the mixture that mass ratio adds saturated fatty acid wax, continue to be warmed up to 65~70 ℃, after the emulsification 5 to 10 minutes, stop heating, when treating that system temperature drops to normal temperature, under condition of stirring, add the copolymer pellet that crushes in advance by a certain percentage, stir and carry out stopping after 10~15 minutes, form stable drag reducing suspensions.
4. the emulsification method of a kind of drag-reduction polymer suspension of oil pipeline according to claim 3 is characterized in that described emulsifying agent is a kind of of tween, sapn, stearyl alcohol or their mixture.
5. the emulsification method of a kind of drag-reduction polymer suspension of oil pipeline according to claim 3 is characterized in that described alcohol base system is a kind of of Virahol, propyl carbinol, Pentyl alcohol, n-hexyl alcohol, n-Octanol or their mixture.
CN200810104309XA 2008-04-17 2008-04-17 Emulsification method of oil pipeline drag reduction polymer suspension Active CN101560301B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102732235A (en) * 2012-06-29 2012-10-17 中国石油化工股份有限公司 Preparation method for suspension polymer
CN103030853A (en) * 2011-09-29 2013-04-10 中国石油化工股份有限公司 Drag reduction composition and preparation method thereof
CN103030854A (en) * 2011-09-29 2013-04-10 中国石油化工股份有限公司 Drag reduction composition and preparation method thereof
CN103936897A (en) * 2013-01-17 2014-07-23 中国石油化工股份有限公司 Drag reducer, and preparation method thereof
CN106402660A (en) * 2016-09-05 2017-02-15 路殿勋 Preparation method for emulsion suspension system of poly-alpha-olefin oil drag reducer
CN106545750A (en) * 2016-10-27 2017-03-29 段恒宇 The preparation method of low-temperature stabilization type polyalphaolefin oil product drag reducer suspension system
CN106764443A (en) * 2016-12-21 2017-05-31 刘政 A kind of thickener suitable for polyalphaolefin oil product drag reducer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3884252A (en) * 1973-06-20 1975-05-20 Shell Oil Co Friction reduction
CN100404611C (en) * 2003-04-10 2008-07-23 中国石油天然气股份有限公司 Suspension dispersion method of alpha-olefin-styrene ultrahigh molecular weight copolymer
CN100475879C (en) * 2005-07-01 2009-04-08 中国石油天然气股份有限公司 Oil-based dispersion method of drag-reducing polymer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103030853A (en) * 2011-09-29 2013-04-10 中国石油化工股份有限公司 Drag reduction composition and preparation method thereof
CN103030854A (en) * 2011-09-29 2013-04-10 中国石油化工股份有限公司 Drag reduction composition and preparation method thereof
CN103030854B (en) * 2011-09-29 2015-01-14 中国石油化工股份有限公司 Drag reduction composition and preparation method thereof
CN103030853B (en) * 2011-09-29 2015-01-14 中国石油化工股份有限公司 Drag reduction composition and preparation method thereof
CN102732235A (en) * 2012-06-29 2012-10-17 中国石油化工股份有限公司 Preparation method for suspension polymer
CN103936897A (en) * 2013-01-17 2014-07-23 中国石油化工股份有限公司 Drag reducer, and preparation method thereof
CN103936897B (en) * 2013-01-17 2016-03-23 中国石油化工股份有限公司 A kind of flow improver and preparation method thereof
CN106402660A (en) * 2016-09-05 2017-02-15 路殿勋 Preparation method for emulsion suspension system of poly-alpha-olefin oil drag reducer
CN106545750A (en) * 2016-10-27 2017-03-29 段恒宇 The preparation method of low-temperature stabilization type polyalphaolefin oil product drag reducer suspension system
CN106764443A (en) * 2016-12-21 2017-05-31 刘政 A kind of thickener suitable for polyalphaolefin oil product drag reducer
CN106764443B (en) * 2016-12-21 2018-09-25 刘政一 A kind of thickener suitable for poly alpha olefin oil product drag reducer

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Effective date of registration: 20211110

Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013

Patentee after: National Petroleum and natural gas pipeline network Group Co.,Ltd.

Address before: Intercontinental building, 16 ande Road, Dongcheng District, Beijing 100011

Patentee before: PetroChina Company Limited