CN1376757A - Flowability improver for crude oil and its preparing process - Google Patents
Flowability improver for crude oil and its preparing process Download PDFInfo
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- CN1376757A CN1376757A CN 02116293 CN02116293A CN1376757A CN 1376757 A CN1376757 A CN 1376757A CN 02116293 CN02116293 CN 02116293 CN 02116293 A CN02116293 A CN 02116293A CN 1376757 A CN1376757 A CN 1376757A
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- polyoxyethylene polyoxypropylene
- ether
- crude oil
- oil
- water
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Abstract
An improver for the flowability of crude oil in oil well or pipeline is prepared from polyoxyacrylic polyoxyvinyl propane diol ether, polyoxyacrylic polyoxyethene polyvinylpolyamine ether, sodium dodecylphenylsulfonate, poluoxyacrylic polyoxyvinyl resinether, polyoxyacrylic polyoxyvinyl emtrolether, methanol and water through proportional mixing, heating to 50-100 deg.C, stirring for 2 hrs and cooling to 30-40 deg.C.
Description
(1) technical field:
The present invention relates to used oilfield chemistry agent of high-water-cut oil-producing well and gathering line and preparation method thereof, belong to flow improver for crude oil and preparation method thereof.
(2) background technology:
At present the crude oil of exploiting at Daqing oil field has wax content height, characteristics that zero pour is high, and wax deposition seriously is that the oil collection is defeated always, a major issue in the storage and transport process.Temperature produces separating out and the deposition of paraffin crystal on sucker rod surface and tube inner wall of paraffin crystal in continuous decline the process on ground when temperature is lower than the wax precipitation piont of crude oil because produced liquid in oil well rises to from the shaft bottom in oil pipe; And the surface gathering and transferring wax deposition also is because the oil liquid temperature in the pipeline causes when being lower than the wax precipitation piont of crude oil.No matter any wax deposition all can cause the minimizing even the blocking pipe of net sectional area, cause pump efficiency to descend, influence oilwell produced fluid amount, sucker rod partial wear even overload fracture.Way commonly used is exactly that heat is washed or the clear wax control of chemical agent.It is exactly the two-tube hot water mode of mixing that heat is washed, and the process energy consumption height makes cost for oil production constantly rise; Though the clear wax control of chemical agent is avoided wax deposition and wax control phenomenon, need to add emulsion splitter, cost is also very high.
(3) summary of the invention:
Technical problem to be solved by this invention is high-water-cut oil-producing well and gathering line adhesion reducing and wax preventing and the high problem of cost.
Adoptable technical scheme is: each composition and the proportioning of this flow improver for crude oil are as follows by weight:
30～50 parts in 5～10 parts of polyoxyethylene polyoxypropylene propylene glycols, 5～10 parts of polyoxyethylene polyoxypropylene polyethylene polyamine ether, 1～5 part of Sodium dodecylbenzene sulfonate, 1～5 part in polyoxyethylene polyoxypropylene resin ether, 1～3 part of polyoxyethylene polyoxypropylene fatty alcohol-ether, 1～3 part of methyl alcohol and water.
The preparation method of this flow improver for crude oil is exactly with 50～100 ℃ of polyoxyethylene polyoxypropylene propylene glycol, polyoxyethylene polyoxypropylene polyethylene polyamine ether, Sodium dodecylbenzene sulfonate, polyoxyethylene polyoxypropylene resin ether, polyoxyethylene polyoxypropylene fatty alcohol-ether, methyl alcohol and water mixing post-heating, constant temperature stirred 2 hours, dropped to 30～40 ℃ of dischargings in temperature and promptly got this improving agent.
Therefore this beneficial effect of the invention is: because this improving agent has the nonionogenic tenside of different blocks (as the polyoxyethylene polyoxypropylene propylene glycol, polyoxyethylene polyoxypropylene polyethylene polyamine ether, polyoxyethylene polyoxypropylene resin ether, the polyoxyethylene polyoxypropylene fatty alcohol-ether), can change wax-crystal structure, reduce the interaction between the wax crystalline substance, play pour point depression and viscosity reducing effect, make this product add in the wet oil, can in water, form the hydrophilic and oleophobic moisture film, the crude oil that is dispersed in aqueous phase coalescent there is the effect of inhibition and forms pseudo-emulsion, can realize oily water separation; Moreover this improving agent is owing to have the side chain linear macromolecule of olefin structure chain link, paraffin is separated out from crude oil, and it is separated from one another, polymerization is grown up mutually, also be not easy to deposit in the metallic surface, be easy to be taken away by oily stream, also do not need to add paraffin inhibitor chemical and add emulsion splitter less simultaneously, cost reduces greatly.Moreover do not need heat to wash, reduce initial cost and oil-collecting energy consumption.
(4) embodiment:
Below with the present invention is further illustrated:
Each composition and the proportioning of this flow improver for crude oil are as follows by weight: 30～50 parts in 5～10 parts of polyoxyethylene polyoxypropylene propylene glycols, 5～10 parts of polyoxyethylene polyoxypropylene polyethylene polyamine ether, 1～5 part of Sodium dodecylbenzene sulfonate, 1～5 part in polyoxyethylene polyoxypropylene resin ether, 1～3 part of polyoxyethylene polyoxypropylene fatty alcohol-ether, 1～3 part of methyl alcohol and water.
Can take following three kinds of schemes to describe:
The effect parameter of each scheme is as follows:
The preparation method of this flow improver for crude oil be exactly according to after the proportioning of last table with 50～100 ℃ of polyoxyethylene polyoxypropylene propylene glycol, polyoxyethylene polyoxypropylene polyethylene polyamine ether, Sodium dodecylbenzene sulfonate, polyoxyethylene polyoxypropylene resin ether, polyoxyethylene polyoxypropylene fatty alcohol-ether, methyl alcohol and water mixing post-heating, constant temperature stirred 2 hours, dropped to 30～40 ℃ of dischargings in temperature and promptly got this improving agent.
By the effect of the proportioning of last each composition of table and generation as seen, this improving agent contains the nonionogenic tenside of different blocks (as the polyoxyethylene polyoxypropylene propylene glycol, polyoxyethylene polyoxypropylene polyethylene polyamine ether, polyoxyethylene polyoxypropylene resin ether, the polyoxyethylene polyoxypropylene fatty alcohol-ether), make this additive compound form a kind of potion multi-purpose oilfield chemical auxiliary, this auxiliary agent adds in the wet oil, become oil-in-water-type by water-in-oil-type crude oil, oil droplet is dispersed in and forms the hydrophilic and oleophobic moisture film in the water, this milk sap does not have real emulsification, do not change the character of crude oil itself, but the flowability of crude oil improves (title pseudo-emulsion) yet.Because the viscosity of oil-in-water-type crude oil emulsion is relevant with the viscosity of water, with oil viscosity irrelevant (because of oil is in dispersion state).After pseudo-emulsion is static, very fast breakdown of emulsion and realize oily water separation, so can add emulsion splitter less when using this improving agent, cost reduces greatly.
During actual the use, along with crude oil rises to the course of conveying of well head and gathering line from the shaft bottom, owing to pressure, decrease of temperature, wax is separated out from crude oil, i.e. wax deposition.And the wax deposition process is divided three phases, promptly analyse wax, the wax crystalline substance is grown up and the depositional phase, this improving agent is owing to have the side chain linear macromolecule of olefin structure chain link, these polymers can form the network structure that spreads all over crude oil, and paraffin is just separated out on network structure, and separated from one another, and polymerization is grown up mutually, also be not easy to be easy to be taken away by oily stream in the metallic surface deposition; Secondly because improving agent can form moisture film, be unfavorable for that wax deposits thereon, thereby reach wax control result, also do not need to add simultaneously paraffin inhibitor chemical.In addition, use this improving agent not need heat to wash, reduce initial cost and oil-collecting energy consumption.
Claims (2)
1, a kind of high-water-cut oil-producing well and used flow improver for crude oil of gathering line of relating to, it is characterized in that: each composition and proportioning are as follows by weight:
30～50 parts in 5～10 parts of polyoxyethylene polyoxypropylene propylene glycols, 5～10 parts of polyoxyethylene polyoxypropylene polyethylene polyamine ether, 1～5 part of Sodium dodecylbenzene sulfonate, 1～5 part in polyoxyethylene polyoxypropylene resin ether, 1～3 part of polyoxyethylene polyoxypropylene fatty alcohol-ether, 1～3 part of methyl alcohol and water.
2, the preparation method of the described flow improver for crude oil of claim 1, it is characterized in that: with 50～100 ℃ of polyoxyethylene polyoxypropylene propylene glycol, polyoxyethylene polyoxypropylene polyethylene polyamine ether, Sodium dodecylbenzene sulfonate, polyoxyethylene polyoxypropylene resin ether, polyoxyethylene polyoxypropylene fatty alcohol-ether, methyl alcohol and water mixing post-heating, constant temperature stirred 2 hours, dropped to 30～40 ℃ of dischargings in temperature and promptly got this improving agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116293 CN1218011C (en) | 2002-04-01 | 2002-04-01 | Flowability improver for crude oil and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116293 CN1218011C (en) | 2002-04-01 | 2002-04-01 | Flowability improver for crude oil and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1376757A true CN1376757A (en) | 2002-10-30 |
| CN1218011C CN1218011C (en) | 2005-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02116293 Expired - Fee Related CN1218011C (en) | 2002-04-01 | 2002-04-01 | Flowability improver for crude oil and its preparing process |
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| CN (1) | CN1218011C (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386401C (en) * | 2006-06-02 | 2008-05-07 | 中国石油天然气股份有限公司 | Water-soluble drag-reducing agent for oil well |
| CN101386659B (en) * | 2008-11-05 | 2010-09-15 | 中国海洋石油总公司 | Method for preparing oil soluble crude oil improved flowable agent |
| CN101092558B (en) * | 2007-07-20 | 2011-06-22 | 于毅 | Viscosity reducting, de-waxing, deoiling auxiliary agent in use for extracting petroleum, and preparation method |
| CN103288169A (en) * | 2013-04-02 | 2013-09-11 | 浙江杭化科技有限公司 | De-emulsifier for treatment of spent lye of alkaline tower of ethene plant |
| CN103923630A (en) * | 2014-04-21 | 2014-07-16 | 孙安顺 | Emulsion antiwax remover |
| CN103980933A (en) * | 2014-05-23 | 2014-08-13 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Rapid dehydrating demulsifying agent for acid-fractured gas condensate and preparation method of rapid dehydrating demulsifying agent |
| CN104023872A (en) * | 2011-11-08 | 2014-09-03 | 日油株式会社 | Flow improver for resin coated sand |
| CN105062551A (en) * | 2015-09-16 | 2015-11-18 | 天津亿利科能源科技发展股份有限公司 | Demulsifying agent for treating sand-containing crude oil |
| WO2017120455A1 (en) * | 2016-01-08 | 2017-07-13 | Ecolab Usa Inc. | Heavy oil rheology modifiers for flow improvement during production and transportation operations |
| CN107652956A (en) * | 2017-10-16 | 2018-02-02 | 中国石油化工股份有限公司 | The phase inversion agent system and its application method of a kind of wet crude |
| CN108913114A (en) * | 2018-06-29 | 2018-11-30 | 河南妙天控股有限公司 | A kind of oil exploitation crude oil lysate and preparation method thereof |
| CN110776894A (en) * | 2019-03-07 | 2020-02-11 | 北京盛昌百年石油科技有限公司 | Water-based dispersion viscosity-reducing pour point depressant and preparation method thereof |
| CN116376527A (en) * | 2021-12-23 | 2023-07-04 | 大庆石油管理局有限公司 | Blocking remover for oil extraction, preparation method thereof, and oil well blocking prevention and removal method |
-
2002
- 2002-04-01 CN CN 02116293 patent/CN1218011C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386401C (en) * | 2006-06-02 | 2008-05-07 | 中国石油天然气股份有限公司 | Water-soluble drag-reducing agent for oil well |
| CN101092558B (en) * | 2007-07-20 | 2011-06-22 | 于毅 | Viscosity reducting, de-waxing, deoiling auxiliary agent in use for extracting petroleum, and preparation method |
| CN101386659B (en) * | 2008-11-05 | 2010-09-15 | 中国海洋石油总公司 | Method for preparing oil soluble crude oil improved flowable agent |
| CN104023872A (en) * | 2011-11-08 | 2014-09-03 | 日油株式会社 | Flow improver for resin coated sand |
| CN104023872B (en) * | 2011-11-08 | 2015-12-02 | 日油株式会社 | For the fluidity improver of resin coated sand |
| CN103288169A (en) * | 2013-04-02 | 2013-09-11 | 浙江杭化科技有限公司 | De-emulsifier for treatment of spent lye of alkaline tower of ethene plant |
| CN103923630A (en) * | 2014-04-21 | 2014-07-16 | 孙安顺 | Emulsion antiwax remover |
| CN103923630B (en) * | 2014-04-21 | 2016-08-24 | 大庆华营化工有限公司 | A kind of emulsion Wax removing agent |
| CN103980933A (en) * | 2014-05-23 | 2014-08-13 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Rapid dehydrating demulsifying agent for acid-fractured gas condensate and preparation method of rapid dehydrating demulsifying agent |
| CN105062551A (en) * | 2015-09-16 | 2015-11-18 | 天津亿利科能源科技发展股份有限公司 | Demulsifying agent for treating sand-containing crude oil |
| WO2017120455A1 (en) * | 2016-01-08 | 2017-07-13 | Ecolab Usa Inc. | Heavy oil rheology modifiers for flow improvement during production and transportation operations |
| US10407611B2 (en) | 2016-01-08 | 2019-09-10 | Ecolab Usa Inc. | Heavy oil rheology modifiers for flow improvement during production and transportation operations |
| CN107652956A (en) * | 2017-10-16 | 2018-02-02 | 中国石油化工股份有限公司 | The phase inversion agent system and its application method of a kind of wet crude |
| CN108913114A (en) * | 2018-06-29 | 2018-11-30 | 河南妙天控股有限公司 | A kind of oil exploitation crude oil lysate and preparation method thereof |
| CN110776894A (en) * | 2019-03-07 | 2020-02-11 | 北京盛昌百年石油科技有限公司 | Water-based dispersion viscosity-reducing pour point depressant and preparation method thereof |
| CN116376527A (en) * | 2021-12-23 | 2023-07-04 | 大庆石油管理局有限公司 | Blocking remover for oil extraction, preparation method thereof, and oil well blocking prevention and removal method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1218011C (en) | 2005-09-07 |
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Granted publication date: 20050907 Termination date: 20110401 |