CN101440276A - Aquathermolysis catalytic thinner for heavy oil exploration via steam injection and preparation thereof - Google Patents
Aquathermolysis catalytic thinner for heavy oil exploration via steam injection and preparation thereof Download PDFInfo
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- CN101440276A CN101440276A CNA2007101804861A CN200710180486A CN101440276A CN 101440276 A CN101440276 A CN 101440276A CN A2007101804861 A CNA2007101804861 A CN A2007101804861A CN 200710180486 A CN200710180486 A CN 200710180486A CN 101440276 A CN101440276 A CN 101440276A
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Abstract
The invention relates to a hydrothermal cracking catalysis viscosity reducer for viscous oil recovery by steam injection and a preparation method thereof. The hydrothermal cracking catalysis viscosity reducer comprises the following components by weight percentage: 0.05 to 0.1 percent of hydrothermal cracking catalyst, 0.05 to 0.2 percent of alkaline substance, and the balance being water. The hydrothermal cracking catalysis viscosity reducer is mainly to utilize the decomposition (hydrogen donation effect) of the water in viscous oil to play a role in hydrogenation modification under the action of the catalyst, thus heavy components of mixed elements such as S and N contained in the viscous oil can be removed to produce certain small molecules, that is, the content of the heavy components is reduced and the content of light components is increased, thereby playing a role in permanently reducing the viscosity of crude oil.
Description
Technical field
The present invention relates to a kind of Aquathermolysis catalytic thinner for heavy oil exploration via steam injection, simultaneously, also relate to a kind of preparation method of this Aquathermolysis catalytic thinner for heavy oil exploration via steam injection, belong to the oil production chemical field.
Background technology
Viscous oil recovery generally adopts steam treatment to handle up or the method for steam flood, though adopt the method for injecting thermal medium can reduce viscosity of crude, is beneficial to the exploitation of viscous crude, annotates behind the vapour through the short period of time exploitation, and formation temperature descends greatly, and viscosity of thickened oil can increase once more; Therefore, in order further to improve the flow capacity of crude oil on the stratum, usually need to add methods such as promoting agent crude oil is carried out viscosity reduction, to prolong the thermal recovery cycle, yet this kind mode is for super viscous crude and special super viscous crude, because its viscosity is high especially, only relies on steam treatment or in steam, add method such as promoting agent and can not meet the needs of production.
Have a mind to add in predetermined substance and the viscous crude research that some component generation chemical reaction reduces viscosity of thickened oil and more and more come into one's own for going into well steam in recent years.But crack crude temperature routinely generally will be more than 300 ℃, and steam thermal recovery well temperature (about 200 ℃) is difficult to reach this temperature.
Abroad just carry out the research of this respect since the initial stage eighties, be at first people such as Canadian Hnye research and development do the underground water thermo-cracking viscous crude technology that catalyzer carries out with transition metal salt, this technology utilizes transition metal salt to make catalyzer, studied the possibility that hydrothermal cracking takes place in great detail from thermodynamics and reaction kinetics angle the stratum, its moiety by viscous crude has been described the reaction mechanism of hydrothermal cracking; By the heavy ingredient (gum asphalt) that makes crude oil under 240 ℃ steam injecting temperature condition scission reaction taking place, cause-fracture of C-S-key, generate light component, reduces the result of viscosity of crude.Proved all on principle and the experiment that the thick oil hydrothermal cracked takes place.
It is domestic that to begin to carry out with the hydrothermal cracking from the nineties be the main research of the underground upgrading of viscous crude of carrying out, by adding transition metal salt catalyzer, carried out reducing thick oil viscosity, generation gas relatively, the viscous crude ratio of components, the comparison of viscous crude component etc., study the effect behind the catalyst action in great detail and obtained certain effect, but hydro-thermal hydrogenation or hydrogen donor hydrogen supply all need the temperature more than 240 ℃, but it is less that notes vapour condition sub-surface reaches the scope of this temperature, cause the catalyst action radius little, with short production cycle, this is the greatest factor of restriction underground catalytic viscosity reduction, especially for shallow-thin layer viscous crude such as Henan Oil Field, steam injecting temperature is low, formation temperature descends fast, existing hydrothermal cracking or the hydrogen supply upgrading requirement temperature of reaction height of utilizing causes catalyzer can not effectively bring into play katalysis, can not effectively improve exploitation effect.
Summary of the invention
The object of the present invention is to provide a kind of Aquathermolysis catalytic thinner for heavy oil exploration via steam injection, can super viscous crude and special super viscous crude being carried out effective viscosity reduction, to improve oil well output.
Simultaneously, the present invention also aims to provide a kind of preparation method of Aquathermolysis catalytic thinner for heavy oil exploration via steam injection.
To achieve these goals, technical scheme of the present invention has adopted a kind of Aquathermolysis catalytic thinner for heavy oil exploration via steam injection, the composition that comprises following weight percentage, hydrothermal cracking and catalyzing agent 0.05-0.1%, alkaline matter 0.05-0.2%, all the other are water.
Described hydrothermal cracking and catalyzing agent is a salicylic aldehyde amine.
Described alkaline matter is the mixture of sodium hydroxide, yellow soda ash or sodium hydroxide and yellow soda ash.
Described alkaline matter is preferably sodium hydroxide.
Described catalyzer salicylic aldehyde amine is to be that feedstock production forms by salicylic aldehyde, Ursol D and dehydrated alcohol, and wherein, the weight percentage of each component is a salicylic aldehyde 9.2-10.2%, Ursol D 4.1-5.1%, dehydrated alcohol 84.7-86.7%.
Described catalyzer salicylic aldehyde amine is got by salicylic aldehyde, Ursol D, dehydrated alcohol preparation, and with salicylic aldehyde, Ursol D, dehydrated alcohol stirring reaction 2-4 hours at normal temperatures, suction filtration gained orange solids promptly makes salicylic aldehyde amine.
Simultaneously, technical scheme of the present invention has also adopted a kind of preparation method of Aquathermolysis catalytic thinner for heavy oil exploration via steam injection, may further comprise the steps:
(1) be the mixture of sodium hydroxide, yellow soda ash or sodium hydroxide and yellow soda ash with less water dissolving alkaline matter;
(2) under 0-40 ℃ temperature, add salicylic aldehyde amine, and supply the water of residual content, mix to stir getting final product in 1-2 hour.
Reducing viscosity in hydrothermal cracking and catalyzing agent of the present invention mainly is under catalyst action, utilize the decomposition (the hydrogen supply effect is arranged) of the water in the crude oil, play the effect of hydro-upgrading, can take off heavy constituent such as containing S, N in the viscous crude like this, produce some little molecules, promptly reduce heavy constituent content, increase light constituent content, thereby play the effect of permanent reduction viscosity of crude.The used hydrothermal cracking and catalyzing agent of the present invention easily contacts with crude oil, and itself and the formed viscosity-depression agent in the compound back of alkaline matter can carry out effective viscosity reduction to the super viscous crude of spy, have improved its flowability on the stratum, thereby have improved oil well yield.Through experiment, viscosity-depression agent of the present invention reacted 24 hours with crude oil under 200 ℃ temperature, and viscosity break ratio can reach more than 92.4%.Viscosity-depression agent of the present invention has reduced the temperature of reaction of catalyzer and crude oil, has higher viscosity break ratio, is not only applicable to the high oil-well strata viscosity reduction of steam injecting temperature, and good effect is also arranged under relatively low temperature condition.
Embodiment
Embodiment 1
In the present embodiment, get the salicylic aldehyde amine of 0.018g, the sodium hydroxide of 0.02g, the water of 30g.Concrete preparation process is: earlier with a spot of dissolved hydrogen water sodium oxide; Under 20 ℃ temperature, add salicylic aldehyde amine then, supply remainder water, mix and stir after 2 hours, can obtain viscosity-depression agent of the present invention, it is joined in the high-temperature high-pressure reaction kettle of dress 70g viscous crude, be warming up to 200 ℃ after the sealing, constant temperature 24 hours, slowly reduce the temperature to room temperature, pour out crude oil, survey viscosity of crude.Recording viscosity break ratio through experiment is 92.4%.
Wherein, salicylic aldehyde amine is to be that feedstock production forms by salicylic aldehyde, Ursol D and dehydrated alcohol, with weight percentage is the dehydrated alcohol stirring reaction 2 hours at normal temperatures of 9.2% salicylic aldehyde, 5.1% Ursol D and 85.7%, and suction filtration gained orange solids promptly makes salicylic aldehyde amine.
Embodiment 2
In the present embodiment, get the salicylic aldehyde amine of 0.02g, the sodium hydroxide of 0.03g, the water of 30g.Concrete preparation process is: earlier with a spot of dissolved hydrogen water sodium oxide; Under 30 ℃ temperature, add salicylic aldehyde amine then, supply remainder water, mix and stir after 1.5 hours, can obtain viscosity-depression agent of the present invention, it is joined in the high-temperature high-pressure reaction kettle of dress 70g viscous crude, be warming up to 200 ℃ after the sealing, constant temperature 24 hours, slowly reduce the temperature to room temperature, pour out crude oil, survey viscosity of crude.Recording viscosity break ratio through experiment is 94.8%.
(2) under 0-40 ℃ temperature, add salicylic aldehyde amine, and supply the water of residual content, mix to stir getting final product in 1-2 hour.
Reducing viscosity in hydrothermal cracking and catalyzing agent of the present invention mainly is under catalyst action, utilize the decomposition (the hydrogen supply effect is arranged) of the water in the crude oil, play the effect of hydro-upgrading, can take off heavy constituent such as containing S, N in the viscous crude like this, produce some little molecules, promptly reduce heavy constituent content, increase light constituent content, thereby play the effect of permanent reduction viscosity of crude.The used hydrothermal cracking and catalyzing agent of the present invention easily contacts with crude oil, and itself and the formed viscosity-depression agent in the compound back of alkaline matter can carry out effective viscosity reduction to the super viscous crude of spy, have improved its flowability on the stratum, thereby have improved oil well yield.Through experiment, viscosity-depression agent of the present invention reacted 24 hours with crude oil under 200 ℃ temperature, and viscosity break ratio can reach more than 92.4%.Viscosity-depression agent of the present invention has reduced the temperature of reaction of catalyzer and crude oil, has higher viscosity break ratio, is not only applicable to the high oil-well strata viscosity reduction of steam injecting temperature, and good effect is also arranged under relatively low temperature condition.
Embodiment
Embodiment 1
In the present embodiment, get the salicylic aldehyde amine of 0.018g, the sodium hydroxide of 0.02g, the water of 30g.Concrete preparation process is: earlier with a spot of dissolved hydrogen water sodium oxide; Under 20 ℃ temperature, add salicylic aldehyde amine then, supply remainder water, mix and stir after 2 hours, can obtain viscosity-depression agent of the present invention, it is joined in the high-temperature high-pressure reaction kettle of dress 70g viscous crude, be warming up to 200 ℃ after the sealing, constant temperature 24 hours, slowly reduce the temperature to room temperature, pour out crude oil, survey viscosity of crude.Recording viscosity break ratio through experiment is 92.4%.
Wherein, salicylic aldehyde amine is to be that feedstock production forms by salicylic aldehyde, Ursol D and dehydrated alcohol, with weight percentage is the dehydrated alcohol stirring reaction 2 hours at normal temperatures of 9.2% salicylic aldehyde, 5.1% Ursol D and 85.7%, and suction filtration gained orange solids promptly makes salicylic aldehyde amine.
Embodiment 2
In the present embodiment, get the salicylic aldehyde amine of 0.02g, the sodium hydroxide of 0.03g, the water of 30g.Concrete preparation process is: earlier with a spot of dissolved hydrogen water sodium oxide; Under 30 ℃ temperature, add salicylic aldehyde amine then, supply remainder water, mix and stir after 1.5 hours, can obtain viscosity-depression agent of the present invention, it is joined in the high-temperature high-pressure reaction kettle of dress 70g viscous crude, be warming up to 200 ℃ after the sealing, constant temperature 24 hours, slowly reduce the temperature to room temperature, pour out crude oil, survey viscosity of crude.Recording viscosity break ratio through experiment is 94.8%.
Claims (7)
1. Aquathermolysis catalytic thinner for heavy oil exploration via steam injection is characterized in that: comprise the composition of following weight percentage, and hydrothermal cracking and catalyzing agent 0.05-0.1%, alkaline matter 0.05-0.2%, all the other are water.
2. Aquathermolysis catalytic thinner for heavy oil exploration via steam injection according to claim 1 is characterized in that: described hydrothermal cracking and catalyzing agent is a salicylic aldehyde amine.
3. Aquathermolysis catalytic thinner for heavy oil exploration via steam injection according to claim 1 and 2 is characterized in that: described alkaline matter is the mixture of sodium hydroxide, yellow soda ash or sodium hydroxide and yellow soda ash.
4. Aquathermolysis catalytic thinner for heavy oil exploration via steam injection according to claim 3 is characterized in that: described alkaline matter is preferably sodium hydroxide.
5. Aquathermolysis catalytic thinner for heavy oil exploration via steam injection according to claim 4, it is characterized in that: described catalyzer salicylic aldehyde amine, by salicylic aldehyde, Ursol D and dehydrated alcohol is that feedstock production forms, wherein, the weight percentage of each component is a salicylic aldehyde 9.2-10.2%, Ursol D 4.1-5.1%, dehydrated alcohol 84.7-86.7%.
6. a kind of Aquathermolysis catalytic thinner for heavy oil exploration via steam injection according to claim 5, it is characterized in that, the preparation method of described catalyzer salicylic aldehyde amine is, with salicylic aldehyde, Ursol D, dehydrated alcohol stirring reaction 2-4 hours at normal temperatures, suction filtration gained orange solids promptly makes salicylic aldehyde amine.
7. the preparation method of an Aquathermolysis catalytic thinner for heavy oil exploration via steam injection as claimed in claim 1 is characterized in that: may further comprise the steps:
(1) be the mixture of sodium hydroxide, yellow soda ash or sodium hydroxide and yellow soda ash with less water dissolving alkaline matter;
(2) under 0-40 ℃ temperature, add salicylic aldehyde amine, and supply the water of residual content, mix to stir getting final product in 1-2 hour.
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| CN 200710180486 CN101440276B (en) | 2007-11-19 | 2007-11-19 | Aquathermolysis catalytic thinner for heavy oil exploration via steam injection and preparation thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287174A (en) * | 2011-04-30 | 2011-12-21 | 胜利油田胜利勘察设计研究院有限公司 | Cracking viscosity reducing method and device for oil field ground collected and conveyed salt-containing thick oil |
| CN102019205B (en) * | 2009-09-15 | 2012-05-30 | 中国石油天然气股份有限公司 | Complex catalyst for viscosity reduction of thick oil through hydrothermal catalytic cracking and preparation and application thereof |
| CN103374380A (en) * | 2012-04-26 | 2013-10-30 | 中国石油化工股份有限公司 | Method for gathering and transporting thickened oil |
| CN103468098A (en) * | 2013-09-22 | 2013-12-25 | 张家港西一新型汽车配件有限公司 | Steel plate strengthening damping adhesive |
| CN103939068A (en) * | 2014-04-16 | 2014-07-23 | 东北石油大学 | Method for exploiting thickened oil or asphalt |
| CN110835523A (en) * | 2018-08-17 | 2020-02-25 | 中国石油化工股份有限公司 | Emulsifying viscosity reducer for cold production of thick oil and preparation method thereof |
| CN113231097A (en) * | 2021-05-11 | 2021-08-10 | 山东科技大学 | Thermal cracking catalyst and preparation method thereof |
| CN113444507A (en) * | 2021-06-11 | 2021-09-28 | 山东海嘉石油化工有限公司 | Non-acidic thick oil viscosity-reducing blocking remover and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220988A (en) * | 1997-12-24 | 1999-06-30 | 南京大学 | Method for synthesising schiff base in the absence of solvent |
| CN1915488A (en) * | 2005-08-16 | 2007-02-21 | 上海三瑞化学有限公司 | Catalyst in use for reducing viscosity in hydrothermal cracking and catalyzing thick oil underground well |
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2007
- 2007-11-19 CN CN 200710180486 patent/CN101440276B/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102019205B (en) * | 2009-09-15 | 2012-05-30 | 中国石油天然气股份有限公司 | Complex catalyst for viscosity reduction of thick oil through hydrothermal catalytic cracking and preparation and application thereof |
| CN102287174A (en) * | 2011-04-30 | 2011-12-21 | 胜利油田胜利勘察设计研究院有限公司 | Cracking viscosity reducing method and device for oil field ground collected and conveyed salt-containing thick oil |
| CN102287174B (en) * | 2011-04-30 | 2014-02-19 | 胜利油田胜利勘察设计研究院有限公司 | Cracking viscosity reducing method and device for oil field ground collected and conveyed salt-containing thick oil |
| CN103374380A (en) * | 2012-04-26 | 2013-10-30 | 中国石油化工股份有限公司 | Method for gathering and transporting thickened oil |
| CN103374380B (en) * | 2012-04-26 | 2015-07-22 | 中国石油化工股份有限公司 | Method for gathering and transporting thickened oil |
| CN103468098A (en) * | 2013-09-22 | 2013-12-25 | 张家港西一新型汽车配件有限公司 | Steel plate strengthening damping adhesive |
| CN103939068A (en) * | 2014-04-16 | 2014-07-23 | 东北石油大学 | Method for exploiting thickened oil or asphalt |
| CN110835523A (en) * | 2018-08-17 | 2020-02-25 | 中国石油化工股份有限公司 | Emulsifying viscosity reducer for cold production of thick oil and preparation method thereof |
| CN110835523B (en) * | 2018-08-17 | 2022-02-15 | 中国石油化工股份有限公司 | Emulsifying viscosity reducer for cold production of thick oil and preparation method thereof |
| CN113231097A (en) * | 2021-05-11 | 2021-08-10 | 山东科技大学 | Thermal cracking catalyst and preparation method thereof |
| CN113231097B (en) * | 2021-05-11 | 2023-02-03 | 山东科技大学 | Thermal cracking catalyst and preparation method thereof |
| CN113444507A (en) * | 2021-06-11 | 2021-09-28 | 山东海嘉石油化工有限公司 | Non-acidic thick oil viscosity-reducing blocking remover and preparation method thereof |
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| CN101440276B (en) | 2012-12-05 |
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