CN102002353A - Oil-soluble thickened oil viscosity reducer - Google Patents
Oil-soluble thickened oil viscosity reducer Download PDFInfo
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- CN102002353A CN102002353A CN2010101520490A CN201010152049A CN102002353A CN 102002353 A CN102002353 A CN 102002353A CN 2010101520490 A CN2010101520490 A CN 2010101520490A CN 201010152049 A CN201010152049 A CN 201010152049A CN 102002353 A CN102002353 A CN 102002353A
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Abstract
The invention discloses an oil-soluble thickened oil viscosity reducer belonging to the technical field of viscosity reducers for thickened crude oil. The viscosity reducer comprises at least one long-chain aliphatic ester, and the number of partial carbon atoms of aliphatic acid constituting the aliphatic ester is from 2 to 30. The dosage of the viscosity reducer accounts for less than 0.2% of the total amount of thickened oil, the viscosity of the thickened oil can be reduced by above 55%, and the viscosity reducer has good viscosity reducing effect; and the viscosity reducer has less dosage, and the used materials have low prices so that the viscosity reducer has low cost.
Description
Technical field
The present invention relates to a kind of viscosity-depression agent of viscous crude oil.
Background technology
Along with deepening continuously of oil field prospecting exploitation, the shared proportion of viscous crude is increasing.Viscous crude is the crude oil that bituminous matter and gum level are higher, viscosity is bigger.Usually the ground area density greater than 0.943, underground viscosity greater than the crude oil of 50 centipoises viscous crude.Because the density of viscous crude is big, also be called heavy oil.Realizing effective exploitation of heavy crude reservoir, is the important research content of national hydrocarbon resources strategy of sustainable development planning.Because the characteristic that the density of viscous crude is big, viscosity is high, flowability is poor is given exploitation and is carried and bring huge difficulty.At present commonly used mix heat, mix method such as thin oil, purpose is to reduce viscosity of thickened oil, increases flow capacity, improves the recovery ratio of viscous crude.Yet the washing oil resource is more and more in short supply, seeks to mix rare viscosity reduction mode in addition and seems especially urgent, in addition, based on the thermal recovery of steam stimulation or steam flood, needs to consume a large amount of heat energy, increases the cost of oil production.Therefore, the novel method of searching reduction viscosity of thickened oil is significant.
The viscosity that reduces viscous crude helps to reduce exploitation, carries cost, increases economic efficiency.In the viscous crude of China was formed, colloid, bitum too high levels were the full-bodied major causes of viscous crude.In the viscous crude, colloid, bitum gathering will cause the viscosity of viscous crude to increase, if colloid, bituminous matter effectively can be scatter in oil, just can reduce viscosity of thickened oil significantly.Long chain fatty acid ester and derivative thereof have just can effectively disperse colloid and bitum effect in the viscous crude, can use as heavy crude thinner.Because this class Substance Properties and oil phase are seemingly, therefore can be described as oil-soluble viscosity reducer.
Summary of the invention
The objective of the invention is to: provide a kind of cost low, the oil soluble heavy crude thinner that viscosity reducing effect is good.
Technical scheme of the present invention is: a kind of oil soluble heavy crude thinner, this viscosity-depression agent is made up of one or more long chain fatty acid esters, such fatty acid ester can be a polyunsaturated fatty acid ester, also can be undersaturated fatty acid ester, constitutes the fatty acid part carbonatoms from 2 to 30 of fatty acid ester.
Described long chain fatty acid ester is selected from polymethyl acrylate, poly-n-butyl methacrylate, butyl acrylate, ethyl oleate, butyl laurate, methyl acrylate, dimethyl phthalate, dibutyl phthalate, methyl-formiate.
The principle of work of oil soluble heavy crude thinner of the present invention: will contain fat esters of gallic acid material, the material that the mixture of perhaps multiple fatty acid ester material is formed adds among the viscous crude, plays the effect that reduces viscosity of thickened oil.
The invention has the beneficial effects as follows: viscosity-depression agent of the present invention dosage be no more than the viscous crude total amount 0.2% in, viscosity of thickened oil can be reduced more than 55%, viscosity reducing effect is good; This viscosity-depression agent consumption is few, and the material therefor price is low, thereby makes that the cost of this viscosity-depression agent is low.
The present invention is further described below by embodiment.
Embodiment
Embodiment 1
Take by weighing viscous crude 100g, add polymethyl acrylate 0.2 g, after the stirring fully, with the viscosity of Brookfield Ivdv-III type rheometer (No. 64 rotors) viscous crude, test result sees Table 1.
Embodiment 2
Take by weighing viscous crude 100g, the 0.2g butyl acrylate is added in the viscous crude, after the stirring, with the viscosity of Brookfield Ivdv-III type rheometer (No. 64 rotors) test viscous crude, test result sees Table 1.
Embodiment 3
Take by weighing viscous crude 100g, with the 0.1g ethyl oleate, the 0.1g butyl laurate adds in the viscous crude, and after the stirring, with the viscosity of Brookfield Ivdv-III type rheometer (No. 64 rotors) test viscous crude, test result sees Table 1.
Embodiment 4
Take by weighing viscous crude 100g, with the 0.1g methyl acrylate, the 0.1g dimethyl phthalate adds in the viscous crude, and after the stirring, with the viscosity of Brookfield Ivdv-III type rheometer (No. 64 rotors) test viscous crude, test result sees Table 1.
Embodiment 5
Take by weighing viscous crude 100g, with the 0.1g butyl acrylate, 0.04g dibutyl phthalate, 0.06 g methyl-formiate add in the viscous crude, and after the stirring, with the viscosity of Brookfield Ivdv-III type rheometer (No. 64 rotors) test viscous crude, test result sees Table 1.
Embodiment 6
Take by weighing viscous crude 100g, with the 0.1g poly-n-butyl methacrylate, the 0.1g butyl laurate adds in the viscous crude, and after the stirring, with the viscosity of Brookfield Ivdv-III type rheometer (No. 64 rotors) test viscous crude, test result sees Table 1.
The viscosity reducing effect of table 1 different ingredients
Disclosed all features in this specification sheets, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification sheets (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. an oil soluble heavy crude thinner is characterized in that, this viscosity-depression agent is made up of one or more long chain fatty acid esters, and the fatty acid part carbonatoms that constitutes fatty acid ester is 2 to 30.
2. according to the described oil soluble heavy crude thinner of claim 1, it is characterized in that described long chain fatty acid ester is selected from polymethyl acrylate, poly-n-butyl methacrylate, butyl acrylate, ethyl oleate, butyl laurate, methyl acrylate, dimethyl phthalate, dibutyl phthalate, methyl-formiate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010152049.0A CN102002353B (en) | 2010-04-21 | 2010-04-21 | Oil-soluble thickened oil viscosity reducer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010152049.0A CN102002353B (en) | 2010-04-21 | 2010-04-21 | Oil-soluble thickened oil viscosity reducer |
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| Publication Number | Publication Date |
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| CN102002353A true CN102002353A (en) | 2011-04-06 |
| CN102002353B CN102002353B (en) | 2014-03-19 |
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| CN201010152049.0A Expired - Fee Related CN102002353B (en) | 2010-04-21 | 2010-04-21 | Oil-soluble thickened oil viscosity reducer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629704A (en) * | 2015-03-18 | 2015-05-20 | 西南石油大学 | Low-molecular hyperbranched oil-soluble thickened oil viscosity reducer and preparation method thereof |
| CN105018062A (en) * | 2014-04-30 | 2015-11-04 | 中国石油化工股份有限公司 | Thick oil viscosity reducer, preparing method thereof and thick oil viscosity reducing method |
| CN105018049A (en) * | 2014-04-29 | 2015-11-04 | 中国石油化工股份有限公司 | Treating agent for reducing adhesivity of thickened oil in drilling fluid |
| CN106701050A (en) * | 2016-12-13 | 2017-05-24 | 西南石油大学 | Crude oil viscosity reducer, preparation method and application |
| CN107382720A (en) * | 2017-07-03 | 2017-11-24 | 西南石油大学 | A kind of heavy crude thinner, preparation method and application |
| CN107459867A (en) * | 2017-08-02 | 2017-12-12 | 洋紫荆油墨(中山)有限公司 | A kind of aqueous polyurethane compound oil ink of super-high solid content low viscosity |
| CN109897617A (en) * | 2019-04-23 | 2019-06-18 | 杭州攻守道贸易有限公司 | A kind of high-efficiency oil well paraffin remover |
| CN110669491A (en) * | 2019-10-24 | 2020-01-10 | 无棣荣业网具有限公司 | High-dispersity thick oil viscosity reducer and preparation method thereof |
| CN112011325A (en) * | 2019-05-30 | 2020-12-01 | 中国石油化工股份有限公司 | Oil-soluble thick oil viscosity reducer |
| CN113403053A (en) * | 2020-03-16 | 2021-09-17 | 中国石油化工股份有限公司 | Oil-soluble thick oil viscosity reducer |
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Patent Citations (3)
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018049A (en) * | 2014-04-29 | 2015-11-04 | 中国石油化工股份有限公司 | Treating agent for reducing adhesivity of thickened oil in drilling fluid |
| CN105018062A (en) * | 2014-04-30 | 2015-11-04 | 中国石油化工股份有限公司 | Thick oil viscosity reducer, preparing method thereof and thick oil viscosity reducing method |
| CN105018062B (en) * | 2014-04-30 | 2018-05-18 | 中国石油化工股份有限公司 | A kind of heavy crude thinner and preparation method thereof and viscosity reduction method |
| CN104629704B (en) * | 2015-03-18 | 2017-08-29 | 西南石油大学 | A kind of hyperbranched oil soluble heavy crude visbreaking agent of low molecule and preparation method thereof |
| CN104629704A (en) * | 2015-03-18 | 2015-05-20 | 西南石油大学 | Low-molecular hyperbranched oil-soluble thickened oil viscosity reducer and preparation method thereof |
| CN106701050A (en) * | 2016-12-13 | 2017-05-24 | 西南石油大学 | Crude oil viscosity reducer, preparation method and application |
| CN106701050B (en) * | 2016-12-13 | 2019-08-16 | 西南石油大学 | A kind of heavy crude thinner, preparation method and application |
| CN107382720B (en) * | 2017-07-03 | 2020-08-04 | 西南石油大学 | Thick oil viscosity reducer, preparation method and application |
| CN107382720A (en) * | 2017-07-03 | 2017-11-24 | 西南石油大学 | A kind of heavy crude thinner, preparation method and application |
| CN107459867A (en) * | 2017-08-02 | 2017-12-12 | 洋紫荆油墨(中山)有限公司 | A kind of aqueous polyurethane compound oil ink of super-high solid content low viscosity |
| CN107459867B (en) * | 2017-08-02 | 2020-12-15 | 洋紫荆油墨(中山)有限公司 | Aqueous polyurethane composite ink with ultrahigh solid content and low viscosity |
| CN109897617A (en) * | 2019-04-23 | 2019-06-18 | 杭州攻守道贸易有限公司 | A kind of high-efficiency oil well paraffin remover |
| CN112011325A (en) * | 2019-05-30 | 2020-12-01 | 中国石油化工股份有限公司 | Oil-soluble thick oil viscosity reducer |
| CN110669491A (en) * | 2019-10-24 | 2020-01-10 | 无棣荣业网具有限公司 | High-dispersity thick oil viscosity reducer and preparation method thereof |
| CN113403053A (en) * | 2020-03-16 | 2021-09-17 | 中国石油化工股份有限公司 | Oil-soluble thick oil viscosity reducer |
| CN113403053B (en) * | 2020-03-16 | 2022-11-18 | 中国石油化工股份有限公司 | Oil-soluble thick oil viscosity reducer |
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| CN102002353B (en) | 2014-03-19 |
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