CN1395024A - Viscous oil emulsion phase-inversion profile control water blockoff - Google Patents
Viscous oil emulsion phase-inversion profile control water blockoff Download PDFInfo
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- CN1395024A CN1395024A CN 02128876 CN02128876A CN1395024A CN 1395024 A CN1395024 A CN 1395024A CN 02128876 CN02128876 CN 02128876 CN 02128876 A CN02128876 A CN 02128876A CN 1395024 A CN1395024 A CN 1395024A
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Abstract
The present invention provides a viscous crude emulsion phase-converting profile control water-plugging method and its phase-converting agent. In the viscous crude system 0.4-1.0% of oil in water emulsion and 3%-10% of phase-converting agent are added, then injected into formation to implement said ivnented method. The oil in water emulsion is a mixturwe of non-ionic surfactants of OP series. Tween series, Span series and sodium carboxylate, etc. and inorganic salts of sodium carbonate, etc. and the phase-converting agent is a mixture of oil-soluble surfactants of OP series or Span series or non-ionic surfactants or organic acid ester, etc. and rosin or asphalt powder or coal powder or bentonite, etc. Said invention developes a effective phase-converting agent, and can implement profile control water-plugging function.
Description
Technical field:
The present invention relates to profile control and water plugging technology in the oil exploitation.
Background technology:
Viscous crude is a kind of profile-controlling and plugging agent of selectivity preferably, it can not injure oil reservoir, it is a kind of unique returnable profile-controlling and plugging agent, its use has the history of decades, the main dual mode that adopts is used: the one, and active viscous crude profile control and water plugging, it is that the emulsifier of water-in-oil type is added in the viscous crude, the stratum of reinjecting, run into the emulsion of the full-bodied water-in-oil type of water generates in the stratum, thereby increase the flow resistance of water, by surface reactive material in emulsifier and the viscous crude such as asphalitine, colloid, aphthenic acids etc. adsorb in the stratum, change the permeability of rock, the relative permeability of water is descended, and emulsion produces the Jamin effect in earth bore Adam's apple structure, increased the flow resistance of water, thereby reduce the water layer water outlet, reach the water blockoff purpose.But this method requires the selected viscosity of thickened oil can not be too big, otherwise is difficult to inject underground.The 2nd, water bag viscous crude profile control and water plugging, viscous crude is made water bag viscous oil emulsion, at water layer breakdown of emulsion taking place after injecting the stratum, form the high viscosity viscous crude, thereby produces very big flow resistance, suppress the water layer water outlet, it is to rely on the viscous crude oneself viscosity to come water blockoff, and viscosity was low when oil-in-water emulsion injected, and easily injected, but be subjected to the influence of the viscometric properties of viscous crude own, result of use is restricted.Owing to having limited it, said method limitation separately applies.
Summary of the invention:
The objective of the invention is to provide a kind of emulsified viscous oil liquid phase-inversion profile control water blockoff technology, promptly develop a kind of phase inversion agent, make that injectant is the lower oil-in-water emulsifiers of viscosity when injecting, injection changes the higher water-in-oil type emulsion of viscosity into behind the stratum.
The object of the present invention is achieved like this: add the phase inversion agent of 0.4～1.0% oil-in-water emulsion and 3%～10% in the viscous crude system, oil-in-water emulsion is the mixture of inorganic salts such as non-ionic surface active agents such as OP series, tween series, sapn series and carboxylic acid sodium and sodium carbonate; The phase inversion agent is the mixture of non-ionic surface active agents such as oil-soluble surfactant OP series or sapn series or organic acid esters and colophony powder or pressed powders such as asphalt powder or coal dust or swell soil.
The present invention adopts the viscous oil emulsion phase-inversion profile control water blockoff notion, and has developed effective phase inversion agent, makes that phase inversion is full-bodied WO emulsion after the oil-in-water emulsion of ground preparation injects the stratum, has realized the function of profile control and water plugging.
The specific embodiment:
Describe concrete composition of the present invention and implementation process in detail below in conjunction with embodiment.
It is 65 ℃～70 ℃ operating modes that present embodiment is suitable for formation temperature, the consisting of of used emulsifier: OP-21:30%, and Tween-60: 20%, Span-80:10%, sodium carbonate: 20%, carboxylic acid sodium: 20%.
The phase inversion agent is: OP-4:10%, pressed powder swell soil: 90%.
Viscous crude 70% and the temperature that with temperature is 100 ℃～110 ℃ is that 80 ℃～90 ℃ water 30% mixes, and adds the emulsifier for preparing and carries out emulsification, and the consumption of emulsifier is 0.5%～1% (content in whole oil emulsion system), obtains oil-in-water emulsion.
In the above-mentioned oil-in-water emulsion of having produced, add content and be 3%～10% phase inversion agent and mix, go into infusion underground, enter the stratum after, oil-in-water emulsion is full-bodied WO emulsion with phase inversion, can stablize more than 1 year not breakdown of emulsion.
Claims (2)
1, a kind of emulsified viscous oil liquid phase-inversion profile control water blockoff method, add oil-in-water emulsion and phase inversion agent in the viscous crude system, oil-in-water emulsion is the mixture of inorganic salts such as non-ionic surface active agent such as OP series, tween series, sapn series and carboxylic acid sodium and sodium carbonate; The phase inversion agent is the mixture of non-ionic surface active agents such as oil-soluble surfactant OP series or sapn series or organic acid esters and colophony powder or pressed powders such as asphalt powder or coal dust or swell soil.
2, emulsified viscous oil liquid phase-inversion profile control water blockoff method according to claim 1, the addition that it is characterized in that oil-in-water emulsion is 0.4～1.0% of a whole viscous crude system; The addition of phase inversion agent is 3%～10% of a whole viscous crude system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 02128876 CN1395024A (en) | 2002-08-19 | 2002-08-19 | Viscous oil emulsion phase-inversion profile control water blockoff |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 02128876 CN1395024A (en) | 2002-08-19 | 2002-08-19 | Viscous oil emulsion phase-inversion profile control water blockoff |
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| CN1395024A true CN1395024A (en) | 2003-02-05 |
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| CN 02128876 Pending CN1395024A (en) | 2002-08-19 | 2002-08-19 | Viscous oil emulsion phase-inversion profile control water blockoff |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420729C (en) * | 2005-09-06 | 2008-09-24 | 中国矿业大学(北京) | Sand fixing agent and preparing process thereof |
| CN101824979A (en) * | 2010-05-12 | 2010-09-08 | 闫若曦 | Emulsion process profile control and water shutoff method of thickened oil steam-stimulated well |
| CN101108963B (en) * | 2006-07-19 | 2010-12-29 | 西部钻探克拉玛依钻井工艺研究院 | Modified product of native asphalt bitumen used as drilling fluid anti-sloughing agentand method of manufacturing the same |
| CN102876305A (en) * | 2011-07-14 | 2013-01-16 | 中国石油化工股份有限公司 | Oil well water shutoff agent and oil well water shutoff method |
| CN104130760A (en) * | 2014-07-04 | 2014-11-05 | 中国石油天然气股份有限公司 | High-condensation thickened oil activator for water plugging and oil well water plugging method |
| CN105154045A (en) * | 2015-08-27 | 2015-12-16 | 山东聚鑫化工有限公司 | Viscous crude oil emulsion phase inversion profile modifying water plugging agent |
| CN101857396B (en) * | 2006-03-28 | 2016-05-18 | 米德韦斯瓦科公司 | Water-in-oil bitumen dispersions and prepare the method for paving compositions by it |
| CN106433589A (en) * | 2016-09-19 | 2017-02-22 | 中国石油化工股份有限公司 | Emulsion for water plugging of horizontal well and preparation method of emulsion |
| CN106497531A (en) * | 2016-10-20 | 2017-03-15 | 烟台智本知识产权运营管理有限公司 | A kind of water plugging of horizontal well oil-in-water emulsion and preparation method thereof |
| RU2644447C2 (en) * | 2016-06-23 | 2018-02-12 | Общество с ограниченной ответственностью "Газпром подземремонт Уренгой" | Dry mixture for preparing composition for selective waterproofing in gas formation |
| CN109504358A (en) * | 2018-12-19 | 2019-03-22 | 新疆贝肯能源工程股份有限公司 | It can de-plugging environment-friendly resin sealing agent and preparation method thereof |
| CN112724945A (en) * | 2021-01-23 | 2021-04-30 | 长安大学 | Salinity response type emulsion deep profile control agent, preparation method and profile control method thereof |
| CN112901110A (en) * | 2021-01-23 | 2021-06-04 | 长安大学 | Method for temporary blocking diversion fracturing by salinity response type emulsion |
-
2002
- 2002-08-19 CN CN 02128876 patent/CN1395024A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420729C (en) * | 2005-09-06 | 2008-09-24 | 中国矿业大学(北京) | Sand fixing agent and preparing process thereof |
| CN101857396B (en) * | 2006-03-28 | 2016-05-18 | 米德韦斯瓦科公司 | Water-in-oil bitumen dispersions and prepare the method for paving compositions by it |
| CN101108963B (en) * | 2006-07-19 | 2010-12-29 | 西部钻探克拉玛依钻井工艺研究院 | Modified product of native asphalt bitumen used as drilling fluid anti-sloughing agentand method of manufacturing the same |
| CN101824979A (en) * | 2010-05-12 | 2010-09-08 | 闫若曦 | Emulsion process profile control and water shutoff method of thickened oil steam-stimulated well |
| CN101824979B (en) * | 2010-05-12 | 2012-10-31 | 闫若曦 | Emulsion process profile control and water shutoff method of thickened oil steam huff-puff wells |
| CN102876305A (en) * | 2011-07-14 | 2013-01-16 | 中国石油化工股份有限公司 | Oil well water shutoff agent and oil well water shutoff method |
| CN102876305B (en) * | 2011-07-14 | 2015-03-18 | 中国石油化工股份有限公司 | Oil well water shutoff agent and oil well water shutoff method |
| CN104130760A (en) * | 2014-07-04 | 2014-11-05 | 中国石油天然气股份有限公司 | High-condensation thickened oil activator for water plugging and oil well water plugging method |
| CN104130760B (en) * | 2014-07-04 | 2017-09-15 | 中国石油天然气股份有限公司 | High-condensation thickened oil activator for water plugging and oil well water plugging method |
| CN105154045A (en) * | 2015-08-27 | 2015-12-16 | 山东聚鑫化工有限公司 | Viscous crude oil emulsion phase inversion profile modifying water plugging agent |
| RU2644447C2 (en) * | 2016-06-23 | 2018-02-12 | Общество с ограниченной ответственностью "Газпром подземремонт Уренгой" | Dry mixture for preparing composition for selective waterproofing in gas formation |
| CN106433589A (en) * | 2016-09-19 | 2017-02-22 | 中国石油化工股份有限公司 | Emulsion for water plugging of horizontal well and preparation method of emulsion |
| CN106497531A (en) * | 2016-10-20 | 2017-03-15 | 烟台智本知识产权运营管理有限公司 | A kind of water plugging of horizontal well oil-in-water emulsion and preparation method thereof |
| CN106497531B (en) * | 2016-10-20 | 2020-03-24 | 烟台智本知识产权运营管理有限公司 | Oil-in-water emulsion for water plugging of horizontal well and preparation method thereof |
| CN109504358A (en) * | 2018-12-19 | 2019-03-22 | 新疆贝肯能源工程股份有限公司 | It can de-plugging environment-friendly resin sealing agent and preparation method thereof |
| CN112724945A (en) * | 2021-01-23 | 2021-04-30 | 长安大学 | Salinity response type emulsion deep profile control agent, preparation method and profile control method thereof |
| CN112901110A (en) * | 2021-01-23 | 2021-06-04 | 长安大学 | Method for temporary blocking diversion fracturing by salinity response type emulsion |
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