CN101418213A - Cracking and catalytic viscosity reducer for heavy oil production by steam injection and preparation method thereof - Google Patents
Cracking and catalytic viscosity reducer for heavy oil production by steam injection and preparation method thereof Download PDFInfo
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- CN101418213A CN101418213A CNA2007101898356A CN200710189835A CN101418213A CN 101418213 A CN101418213 A CN 101418213A CN A2007101898356 A CNA2007101898356 A CN A2007101898356A CN 200710189835 A CN200710189835 A CN 200710189835A CN 101418213 A CN101418213 A CN 101418213A
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Abstract
The invention relates to a catalytic cracking viscosity depressant for exploitating thick oil through steam injection and a preparation method thereof. The catalytic cracking viscosity depressant is suitable for catalytic visbreaking in a thick oil thermal production well when steam is injected to stratum; the catalytic cracking viscosity depressant is prepared by compounding the following compositions in weight percentage: 0.1 to 1.0 percent of ferric dodecyl benzene sulfonate, 0.1 to 1.0 percent of sodium hydroxide and the balance being water. The viscosity depressant and crude oil react for 16 hours at the temperature of 200 DEG C in order that the viscosity of the crude oil is reduced from 173,900 mPa.s to 400 Pa.s; and the visbreaking rate reaches over 99 percent. The catalytic cracking viscosity depressant is used to reduce the temperature of the reaction between a catalyst and the crude oil, has high visbreaking rate, is suitable for the visbreaking of the stratum of the oil well with high steam injection temperature and also has good effect under the condition of relatively low temperature.
Description
Technical field
The present invention relates to a kind of cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection, simultaneously, the invention still further relates to a kind of this and be used for the preparation method of the cracking and catalyzing viscosity-depression agent of heavy oil exploitation via steam injection, belong to field of petroleum exploitation.
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 to reduce viscosity of crude, help the exploitation of viscous crude, but exploit through the short period of time behind the notes vapour, 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 chemical agent crude oil is carried out viscosity reduction, thereby prolonged thermal recovery cycle time to a great extent.Viscosity reducing process commonly used is for adopting the tensio-active agent viscosity reduction, as being the viscosity-depression agent of feedstock production with Sodium dodecylbenzene sulfonate, it is active viscosity-depression agent, it can change oil water interfacial tension, make emulsified viscous oil form oil-in-water, thereby reduction resistance to flow, just reduced viscosity of crude, but this viscosity reduction is a physical action, along with in the reduction of formation temperature and the influence of formation condition, milk sap changes, become water-in-oil once more, viscosity raises once more, loses the viscosity reduction effect, especially undesirable for the super viscous crude effect of the higher spy of viscosity, therefore only rely on steam treatment or in steam, add method such as promoting agent 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.
Summary of the invention
The object of the present invention is to provide a kind of cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection, can the super viscous crude of spy being carried out effective viscosity reduction, to improve oil well output.
Simultaneously, the present invention also aims to provide a kind of preparation method who is used for the cracking and catalyzing viscosity-depression agent of heavy oil exploitation via steam injection.
To achieve these goals, technical scheme of the present invention has adopted a kind of cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection, comprise catalyzer and alkaline matter, the weight percentage of its each component is: catalyzer 0.1-1.0%, alkaline matter 0.1-1.0%, all the other are water.
The weight percentage of described catalyzer is preferably 0.1-0.5%.
The weight percentage of described alkaline matter is preferably 0.1-0.5%.
Described catalyzer is a Witco 1298 Soft Acid iron.
Described catalyzer Witco 1298 Soft Acid iron, be prepared from by Witco 1298 Soft Acid, ferric oxide and acetone, wherein, the weight percentage of each component is a Witco 1298 Soft Acid 47.7-48.0%, ferric oxide 4.0-4.6%, acetone 47.7-48.0%.
Described catalyzer Witco 1298 Soft Acid iron is by Witco 1298 Soft Acid, ferric oxide, acetone prepare and get, constant temperature is 2-4 hours under 100-120 ℃ of conditions, generates a kind of sorrel dope, after filtration, promptly make Witco 1298 Soft Acid iron behind the distilling off solvent.
Described Witco 1298 Soft Acid is industrial goods, and content is 99%; Ferric oxide is industrial goods, and content is 96%; Acetone is industrial goods, and content is 99%.
Alkaline matter is sodium hydroxide, potassium hydroxide, yellow soda ash or its mixture.
Described alkaline matter is preferably sodium hydroxide.
Simultaneously, technical scheme of the present invention has also adopted a kind of preparation method who is used for the cracking and catalyzing viscosity-depression agent of heavy oil exploitation via steam injection, may further comprise the steps:
(1) with the mixture of a spot of dissolved hydrogen water sodium oxide, yellow soda ash or sodium hydroxide and yellow soda ash;
(2) under 0-40 ℃ temperature, add catalyzer, supply remainder water, mix and stirred 2-4 hour.
The cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection of the present invention is compound and make by catalyzer Witco 1298 Soft Acid iron and alkaline matter, the catalyzer Witco 1298 Soft Acid iron that is adopted is by Witco 1298 Soft Acid, ferric oxide and acetone are prepared from, wherein Witco 1298 Soft Acid is a long chain alkyl group that contains phenyl ring, iron has katalysis, promptly become a kind of strong polar catalyzer that has behind the synthetic Witco 1298 Soft Acid iron, macromolecular colloid in it and the crude oil, bituminous matter (it is many to contain phenyl ring) has the similar effect of mixing, easy and crude oil combines the catalytic pyrolysis effect takes place, thereby forever reduce viscosity of crude, it is a kind of chemical action, the used catalyzer of the present invention easily contacts with crude oil, the reaction of generation chemical scission, 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, improved its flowability, thereby improved oil well yield on the stratum.Through experiment, viscosity-depression agent of the present invention reacted 16 hours with crude oil under 200 ℃ temperature, viscosity of crude can be dropped to 400mPa.s from 173900mPa.s, and viscosity break ratio reaches more than 99%.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, sodium hydroxide is got 0.1g, and Witco 1298 Soft Acid iron is 0.2g, and water is 30g, and concrete preparation process is: earlier with a spot of dissolved hydrogen water sodium oxide; Under 20 ℃ temperature, add catalyzer Witco 1298 Soft Acid iron then, supply remainder water, mix to stir and to obtain viscosity-depression agent of the present invention in 4 hours, 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 reduces the temperature to room temperature, pour out crude oil, survey viscosity of crude.Recording viscosity break ratio through experiment is 99.3%.
Catalyzer Witco 1298 Soft Acid iron in the present embodiment is by Witco 1298 Soft Acid, ferric oxide and acetone constant temperature 4 hours under 100 ℃ condition, be prepared from behind the distilling off solvent after filtration,, wherein, the weight percentage of each component is a Witco 1298 Soft Acid 47.8%, ferric oxide 4.4%, acetone 47.8%.
Embodiment 2
In the present embodiment, sodium hydroxide is got 0.05g, and Witco 1298 Soft Acid iron is 0.1g, and water is 30g, and concrete preparation process is: earlier with a spot of dissolved hydrogen water sodium oxide; Under 30 ℃ temperature, add catalyzer Witco 1298 Soft Acid iron then, supply remainder water, mix and stir after 3 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 99.9%.
Witco 1298 Soft Acid iron in the present embodiment is by Witco 1298 Soft Acid, ferric oxide and acetone constant temperature 3 hours under 110 ℃ condition, be prepared from behind the distilling off solvent after filtration,, wherein, the weight percentage of each component is a Witco 1298 Soft Acid 47.9%, ferric oxide 4.2%, acetone 47.9%.
Embodiment 3
In the present embodiment, sodium hydroxide is got 0.15g, and Witco 1298 Soft Acid iron is 0.15g, and water is 30g, and concrete preparation process is: earlier with a spot of dissolved hydrogen water sodium oxide; Under 40 ℃ temperature, add catalyzer Witco 1298 Soft Acid iron 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 99.9%.
Witco 1298 Soft Acid iron in the present embodiment is by Witco 1298 Soft Acid, ferric oxide and acetone constant temperature 2 hours under 120 ℃ condition, be prepared from behind the distilling off solvent after filtration,, wherein, the weight percentage of each component is a Witco 1298 Soft Acid 47.9%, ferric oxide 4.2%, acetone 47.9%.
On-the-spot allocation method is: at first, annotate the total amount that vapour amount, bed thickness are calculated required catalyzer according to intending implementing well, then calculate the consumption of required each component in the aforementioned formula ratio; First solvent with calculated amount adds the 10m with electronic whipping appts during dosing
3In the dosing pond, start stirrer, under agitation condition, add sodium hydroxide, the Witco 1298 Soft Acid iron of calculated amount respectively, treat all dissolvings evenly after, with the instillation pump with joining solution clamp-on the stratum, wait to annotate that vapour is intact resumes production after boiling in a covered pot over a slow fire well.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection, it is characterized in that: comprise catalyzer and alkaline matter, the weight percentage of its each component is: catalyzer 0.1-1.0%, alkaline matter 0.1-1.0%, all the other are water.
2. the cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection according to claim 1, it is characterized in that: the weight percentage of described catalyzer is preferably 0.1-0.5%.
3. the cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection according to claim 1, it is characterized in that: the weight percentage of described alkaline matter is preferably 0.1-0.5%.
4. according to arbitrary described cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection in the claim 1-3, it is characterized in that described catalyzer is a Witco 1298 Soft Acid iron.
5. the cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection according to claim 4, it is characterized in that, described catalyzer Witco 1298 Soft Acid iron, by Witco 1298 Soft Acid, ferric oxide and acetone is that feedstock production forms, wherein, the weight percentage of each component is a Witco 1298 Soft Acid 47.7-48.0%, ferric oxide 4.0-4.6%, acetone 47.7-48.0%.
6. the cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection according to claim 5, it is characterized in that, the preparation method of described catalyzer Witco 1298 Soft Acid iron is, with Witco 1298 Soft Acid, the isothermal reaction 2-4 hours under 100-120 ℃ temperature condition of ferric oxide, acetone, generate a kind of sorrel dope, after filtration, promptly make Witco 1298 Soft Acid iron behind the distilling off solvent.
7. the cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection according to claim 6 is characterized in that described Witco 1298 Soft Acid is industrial goods, and content is 99%; Ferric oxide is industrial goods, and content is 96%; Acetone is industrial goods, and content is 99%.
8. the cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection according to claim 1 is characterized in that, alkaline matter is sodium hydroxide, potassium hydroxide, yellow soda ash or its mixture.
9. the cracking and catalyzing viscosity-depression agent that is used for heavy oil exploitation via steam injection according to claim 8 is characterized in that described alkaline matter is preferably sodium hydroxide.
10. preparation method who is used for the cracking and catalyzing viscosity-depression agent of heavy oil exploitation via steam injection as claimed in claim 1 is characterized in that: may further comprise the steps:
(1) with the mixture of a spot of dissolved hydrogen water sodium oxide, yellow soda ash or sodium hydroxide and yellow soda ash;
(2) under 0-40 ℃ temperature, add catalyzer, supply the water of residual content, mix and stirred 2-4 hours.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200710189835 CN101418213B (en) | 2007-10-24 | 2007-10-24 | Cracking and catalytic viscosity reducer for heavy oil production by steam injection and preparation method thereof |
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| CN 200710189835 CN101418213B (en) | 2007-10-24 | 2007-10-24 | Cracking and catalytic viscosity reducer for heavy oil production by steam injection and preparation method thereof |
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| CN101418213A true CN101418213A (en) | 2009-04-29 |
| CN101418213B CN101418213B (en) | 2011-01-12 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN102380422A (en) * | 2011-08-29 | 2012-03-21 | 厦门大学 | Heavy oil aquathermolytic catalyst and preparation method thereof |
| CN103386323A (en) * | 2013-08-07 | 2013-11-13 | 中国海洋石油总公司 | Quality-improving and viscosity-reducing catalyst and preparation method thereof |
| CN103468235A (en) * | 2013-09-26 | 2013-12-25 | 东北石油大学 | Chemical assistant for thermal recovery of thick oil and application thereof |
| RU2608192C2 (en) * | 2014-10-15 | 2017-01-17 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Казанский (Приволжский) федеральный университет" (ФГАОУВПО КФУ) | Catalyst and method for use 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 |
| CN116408145A (en) * | 2021-12-31 | 2023-07-11 | 中国石油天然气股份有限公司 | Naphthalene sulfonic acid catalyst composition and preparation method and application thereof |
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| RU2728002C1 (en) * | 2019-11-29 | 2020-07-28 | федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) | Development method of high-viscosity oil and natural bitumen deposit |
Family Cites Families (3)
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| CN1101255C (en) * | 1998-01-21 | 2003-02-12 | 辽河石油勘探局勘察设计研究院 | Emulsifying viscosity-reducing agent for superthick emulsified oil combustion |
| CN1286288A (en) * | 2000-10-09 | 2001-03-07 | 王力民 | Viscosity-reducing composition for high viscosity crude |
| CN100529011C (en) * | 2007-01-12 | 2009-08-19 | 图们市科兴石化技术开发有限公司 | Surface activating agent for oil-field thick-oil well |
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2007
- 2007-10-24 CN CN 200710189835 patent/CN101418213B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN102380422A (en) * | 2011-08-29 | 2012-03-21 | 厦门大学 | Heavy oil aquathermolytic catalyst and preparation method thereof |
| CN103386323A (en) * | 2013-08-07 | 2013-11-13 | 中国海洋石油总公司 | Quality-improving and viscosity-reducing catalyst and preparation method thereof |
| CN103386323B (en) * | 2013-08-07 | 2015-01-14 | 中国海洋石油总公司 | Quality-improving and viscosity-reducing catalyst and preparation method thereof |
| CN103468235A (en) * | 2013-09-26 | 2013-12-25 | 东北石油大学 | Chemical assistant for thermal recovery of thick oil and application thereof |
| RU2608192C2 (en) * | 2014-10-15 | 2017-01-17 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Казанский (Приволжский) федеральный университет" (ФГАОУВПО КФУ) | Catalyst and method for use 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 |
| CN116408145A (en) * | 2021-12-31 | 2023-07-11 | 中国石油天然气股份有限公司 | Naphthalene sulfonic acid catalyst composition and preparation method and application thereof |
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| CN101418213B (en) | 2011-01-12 |
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