CN103087696A - Synthesis process of thick oil emulsifying viscosity reducer - Google Patents
Synthesis process of thick oil emulsifying viscosity reducer Download PDFInfo
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- CN103087696A CN103087696A CN 201110372971 CN201110372971A CN103087696A CN 103087696 A CN103087696 A CN 103087696A CN 201110372971 CN201110372971 CN 201110372971 CN 201110372971 A CN201110372971 A CN 201110372971A CN 103087696 A CN103087696 A CN 103087696A
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Abstract
The invention discloses a synthesis process of a thick oil emulsifying viscosity reducer. The synthesis process comprises the following steps: (a) performing a condensation reaction on octylphenol polyoxyethylene ether and formaldehyde; (b) performing a sulfonation reaction on a co-condensation polymer and concentrated sulfuric acid; and (c) finally neutralizing to prepare the thick oil emulsifying viscosity reducer. According to the synthesis process disclosed by the invention, the thick oil emulsifying viscosity reducer can be successfully synthesized, the synthesis efficiency is high, the cost required for synthesis is low, and the various performance parameters of the synthesized thick oil emulsifying viscosity reducer are excellent.
Description
Technical field
The present invention relates to a kind of synthesis technique of emulsifying and viscosity-reducing agent for condensed oil.
Background technology
Along with Gong the utilization of conventional oil reduces day by day, heavy oil is becoming the next century mankind's important energy source.Through the effort of more than 20 years, global heavy oil industry had than conventional oil tempo faster, and the annual production of viscous crude, tar sand rises to nearly hundred million tons by 2,000 ten thousand tons, and its importance receives people's concern day by day.The difficulty of heavy crude reservoir exploitation is mainly manifested in two aspects: the viscosity of viscous crude is high on the one hand, and the seepage resistance of viscous crude in oil reservoir is large, makes viscous crude not flow into the shaft bottom from oil reservoir; Even on the other hand under reservoir condition, viscous crude can flow into the shaft bottom, but in the process of vertical lifting, impact due to viscous crude factor such as degassed and radiating and cooling in pit shaft, make the viscosity of viscous crude further increase, have a strong impact on the normal operation of the mobile and oil well production equipment of resident fluid in pit shaft.
According to the pertinent data statistics, explored heavy oil resource mainly concentrates on the states such as Venezuela, USSR (Union of Soviet Socialist Republics), the U.S. and Canada in the world at present.The Orinoco heavy oil belt of Venezuela northeast is examined geologic reserve and is reached more than 3,000 hundred million tons.Half of U.S.'s heavy oil resource is distributed in Gary Fu Niya, nearly 40,000,000,000 tons of geologic reserve, remaining half be distributed in the continent, middle part.Canadian heavy oil resource mainly is distributed in four major sedimentary mineral reserve such as Athabasca, cold air lake, dimension Pascal and this river of Alberta, nearly 1,500 hundred million tons of geologic reserve.The heavy oil resource of USSR (Union of Soviet Socialist Republics) mainly is distributed in more than 200 hundred million tons of the Ba Sainuofuyue in West Siberia basin, comprises that also there is extremely abundant viscous crude resource in other country of China.Total geologic reserve of these heavy oil resources adds up more than 6,000 hundred million tons, and in the world conventional oil verify 3,600 hundred million tons of geologic reserve, its workable reserve is only 90,000,000,000 tons.
The viscous crude stock number that China has found is also very abundant, and existing more than 20 of the viscous crude field of discovery is distributed in the areas such as the Liaohe River, triumph, Xinjiang, huge port, Jilin, more than estimating that Chinese heavy petroleum asphalt stock number can reach 300 * 108t.China's viscous crude (highly viscous oil, viscosity is more than 0.1Pas) resource distribution is very wide, and geologic reserve reaches 164 * 108t, and wherein the land viscous crude accounts for more than 20% of oil total resources.The outstanding characteristics of viscous crude are that bituminous matter, gum level are higher.Colloid, the heavy oil production that asphalt content is higher account for 7% of viscous crude ultimate production.
Connect the area in Daqing oil field, Henan, Inner Mongol two in recent years and found important heavy crude reservoir; Also find the viscous crude resource in areas such as Jianghan Oil-field, little, the Northwest Sichuan of peace.Heavy crude reservoir geologic reserve explored and that control has surpassed national common thin oil reserves, estimates also to have from now on new growth.
In the proven reserve of CNPC, common heavy oil accounts for 74.7%, and special viscous crude accounts for 14.4%, and super viscous crude accounts for 10.9%.
Countries in the world mainly rely on traditional thermal methods to the exploitation of high viscosity heavy oil at present, i.e. steam stimulation and steam flood.The supporting technology that China's great majority adopt steam stimulation and pit shaft to mix thin oil is recovered the oil.This method not only consumes a large amount of fuel, but also consumes a large amount of thin oils, thereby has increased widely cost for oil production.Have bibliographical information can use the Emulsifying heavy crude producing, this method is that water phase surfactant mixture is annotated the down-hole, makes full-bodied viscous crude change low viscous water external emulsion extraction into.Reducing viscosity by emulsifying is high due to its viscosity break ratio, cost is low, easy handling, and at home and abroad all there is use in the oil field at present.But the emulsifying pour depressor that uses at present only possesses single heatproof or anti-rock salt performance, namely heatproof again the emulsifying pour depressor of anti-rock salt research and development also seldom.
Tensio-active agent has in viscous oil recovery widely to be used, and at present most popular is non-ionic type and aniorfic surfactant, as polyoxyethylene octylphenol ether and sulfonated petro-leum.But this two classes tensio-active agent all can not be applicable to separately temperature and the high oil reservoir of salinity.There is cloud point in nonionic surface active agent, and outside temperature is higher than cloud point, and tensio-active agent is namely separated out from water; Aniorfic surfactant can be separated out in the water of high salinity.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of synthesis technique of emulsifying and viscosity-reducing agent for condensed oil is provided, this synthesis technique can successfully synthesize emulsifying and viscosity-reducing agent for condensed oil, and combined coefficient is high, synthetic required cost is low, and the emulsifying and viscosity-reducing agent for condensed oil various performance parameters that synthesizes is excellent.
Purpose of the present invention is achieved through the following technical solutions: the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil comprises the following steps:
(a) condensation reaction of polyoxyethylene octylphenol ether and formaldehyde;
(b) sulfonation reaction of co-condensation polymer and the vitriol oil;
(c) neutralization makes emulsifying and viscosity-reducing agent for condensed oil at last.
Described step (a) comprises the following steps:
(a1) at first, add polyoxyethylene octylphenol ether in reaction vessel, be warming up to certain temperature;
(a2) then, add catalyzer, slowly drip formaldehyde, reaction for some time.
In described step (a1), reaction vessel is three-necked flask.
In described step (a1), be warming up to 70～100 ℃.
In described step (a2), the concentration of formaldehyde is 40%.
In described step (a2), the reaction times is 3～5h.
In described step (b), sulfonation temperature is 100～150 ℃.
In described step (b), the mass ratio of the vitriol oil and polyoxyethylene octylphenol ether is 0.8: 1～1.4: 1.
In described step (c), neutralize by NaOH.
In sum, the invention has the beneficial effects as follows: can successfully synthesize emulsifying and viscosity-reducing agent for condensed oil, and combined coefficient is high, synthetic required cost is low, and the emulsifying and viscosity-reducing agent for condensed oil various performance parameters that synthesizes is excellent.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment:
The synthesis technique of the emulsifying and viscosity-reducing agent for condensed oil that the present embodiment relates to comprises the following steps:
(a) condensation reaction of polyoxyethylene octylphenol ether and formaldehyde;
(b) sulfonation reaction of co-condensation polymer and the vitriol oil;
(c) neutralization makes emulsifying and viscosity-reducing agent for condensed oil at last.
Described step (a) comprises the following steps:
(a1) at first, add polyoxyethylene octylphenol ether in reaction vessel, be warming up to certain temperature;
(a2) then, add catalyzer, slowly drip formaldehyde, reaction for some time.
In described step (a1), reaction vessel is three-necked flask.
In described step (a1), be warming up to 70～100 ℃.
In described step (a2), the concentration of formaldehyde is 40%.
In described step (a2), the reaction times is 3～5h.
In described step (b), sulfonation temperature is 100～150 ℃.
In described step (b), the mass ratio of the vitriol oil and polyoxyethylene octylphenol ether is 0.8: 1～1.4: 1.
In described step (c), neutralize by NaOH.
The above is only preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, and every foundation technical spirit of the present invention, any simple modification, equivalent variations that above embodiment is done are within all falling into protection scope of the present invention.
Claims (9)
1. the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil, is characterized in that, comprises the following steps:
(a) condensation reaction of polyoxyethylene octylphenol ether and formaldehyde;
(b) sulfonation reaction of co-condensation polymer and the vitriol oil;
(c) neutralization makes emulsifying and viscosity-reducing agent for condensed oil at last.
2. the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil according to claim 1, is characterized in that, described step (a) comprises the following steps:
(a1) at first, add polyoxyethylene octylphenol ether in reaction vessel, be warming up to certain temperature;
(a2) then, add catalyzer, slowly drip formaldehyde, reaction for some time.
3. the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil according to claim 2, is characterized in that, in described step (a1), reaction vessel is three-necked flask.
4. the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil according to claim 2, is characterized in that, in described step (a1), is warming up to 70～100 ℃.
5. the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil according to claim 2, is characterized in that, in described step (a2), the concentration of formaldehyde is 40%.
6. the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil according to claim 2, is characterized in that, in described step (a2), the reaction times is 3～5h.
7. the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil according to claim 1, is characterized in that, in described step (b), sulfonation temperature is 100～150 ℃.
8. the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil according to claim 1, is characterized in that, in described step (b), the mass ratio of the vitriol oil and polyoxyethylene octylphenol ether is 0.8: 1～1.4: 1.
9. the synthesis technique of emulsifying and viscosity-reducing agent for condensed oil according to claim 1, is characterized in that, in described step (c), neutralizes by NaOH.
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| CN 201110372971 CN103087696A (en) | 2011-11-08 | 2011-11-08 | Synthesis process of thick oil emulsifying viscosity reducer |
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| CN 201110372971 CN103087696A (en) | 2011-11-08 | 2011-11-08 | Synthesis process of thick oil emulsifying viscosity reducer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543998B (en) * | 2016-10-19 | 2020-06-12 | 中国石油化工股份有限公司 | Hydrothermal cracking catalytic viscosity reducer and preparation method thereof |
| CN113801645A (en) * | 2020-06-11 | 2021-12-17 | 中国石油化工股份有限公司 | Thickened oil viscosity reducing agent, preparation method thereof and thickened oil viscosity reducing method |
-
2011
- 2011-11-08 CN CN 201110372971 patent/CN103087696A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106543998B (en) * | 2016-10-19 | 2020-06-12 | 中国石油化工股份有限公司 | Hydrothermal cracking catalytic viscosity reducer and preparation method thereof |
| CN113801645A (en) * | 2020-06-11 | 2021-12-17 | 中国石油化工股份有限公司 | Thickened oil viscosity reducing agent, preparation method thereof and thickened oil viscosity reducing method |
| CN113801645B (en) * | 2020-06-11 | 2023-04-07 | 中国石油化工股份有限公司 | Thickened oil viscosity reducing agent, preparation method thereof and thickened oil viscosity reducing method |
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Application publication date: 20130508 |