CN101407354B - Demulsifying agent for processing clay-containing ternary complex drive produced liquid - Google Patents
Demulsifying agent for processing clay-containing ternary complex drive produced liquid Download PDFInfo
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- CN101407354B CN101407354B CN2008102262785A CN200810226278A CN101407354B CN 101407354 B CN101407354 B CN 101407354B CN 2008102262785 A CN2008102262785 A CN 2008102262785A CN 200810226278 A CN200810226278 A CN 200810226278A CN 101407354 B CN101407354 B CN 101407354B
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Abstract
The invention relates to a demulsifier for treating unit triplet complex flooding production stream containing clay, being applied to dehydration treatment of oil field crude oil, in particular to the dehydration treatment of oil well production stream containing clay, the characteristics thereof are as follows: the weight percentages of each component are: 23.5 to 28.5 percent of demulsifier TA5031; 25 to 35 percent of rosin amine polyoxypropylene polyethenoxy ether; 1.5 to 2.6 percent of N-ethyl perfluor octyl sulfamide anesulfonamido polyoxy ether; 0.5 to 1.5 percent of sodium nitrite; 0.05 to 1.0 percent of Vitamin A; 15 to 20 percent of methanol and water as the rest. The effects are as follows: the demulsifier is suitable for treating oil well production stream containing a great amount of clay, the water content of the dehydrated crude oil is less than 0.5 percent, the oil content of the sewage is less than 100mg/L, sewage quality achieves the crude oil dehydration standard requirement, the dehydration efficiency is improved and the dosage of the demulsifier is reduced. The demulsifier can finish the dehydration effect of the existing demulsifier and the sand removing effect of the water purification agent by only one-time adding.
Description
Technical field
The invention belongs to oil field oil recovery chemicals for industrial use technical field, relate in particular to a kind of prescription of handling the emulsion splitter that contains clay behind the ternary composite driving in the extraction liquid and preparation method thereof.Being applicable to the oil well produced liquid processed that contains clay, is 50 ℃ in dehydration temperaturre, and dosage is 100mg/L, and moisture less than 0.5% in the crude oil of dehydration back, oil-containing is less than 100mg/L in the sewage.
Background technology
Recover the oil the later stage in the oil field,, often adopt alkaline surfactant polymer flooding oil-field technology to recover the oil in order to improve oil recovery rate and per-well production.In the alkaline surfactant polymer flooding oil-field process, have and contain a large amount of clays in the part oil well produced liquid, extraction liquid at this moment is muddy as " mud soup ".
At present, the method for handling the oil well produced liquid contain a large amount of clays was divided into for two steps, and 1, adopt emulsion splitter that extraction liquid is carried out processed; 2, adopting water purification agent that isolated sewage is carried out desanding handles.At first, in extraction liquid, add emulsion splitter, utilize emulsion splitter that extraction liquid is carried out processed.Though conventional emulsion splitter is fine to the extraction fluid dewatering effect that contains a large amount of clays, isolated sewage still contains a large amount of clays from extraction liquid, and isolated sewage presents " mud soup " shape that does not contain crude oil.Then, in this isolated sewage, add water purification agent, remove the sewage medium clay soil, but the effect of removing clay is also not obvious, can not solve sewage desanding problem, argillaceous amount overshoot index in the sewage, had a strong impact on the normal operation of oil extraction-generated waste water process for producing, drop into a large amount of treatment agents simultaneously, take too much treatment facility, improved the oil recovery comprehensive cost.
Summary of the invention
The objective of the invention is: the ternary combination flooding produced liquid emulsion splitter that provides a kind of processing to contain clay, suitable processing contains the oil well produced liquid of a large amount of clays, handle the ternary combination flooding produced liquid that contains clay with emulsion splitter of the present invention, once add this emulsion splitter, can realize that the profit clay in the oil well produced liquid separates, reduce treatment process and minimizing and take treatment facility, solve the ternary combination flooding produced liquid that contains clay and handle the very problem of difficulty.
The present invention contains the clay problem in the extraction liquid behind the solution ternary composite driving, and the technical scheme that the processing that is provided contains the ternary combination flooding produced liquid emulsion splitter of clay is:
One, each component of handling the ternary combination flooding produced liquid emulsion splitter contain clay is:
1, emulsion splitter TA5031 (industrial goods);
Another name: the reactant of organic aldehyde, amine, phenol etc. is the polyoxyethylene polyoxypropylene ether of initiator.Consult " Chinese tensio-active agent overview " book of Huang Hongzhou chief editor, the 475th page, Chemical Industry Press publishes.
Purposes: crude oil low temperature dewatering and refinery's desalting agent have effects such as viscosity reduction concurrently.
Production unit: general petrochemical works, Jingzhou City.
2, rosin Amine D polyoxyethylene polyoxypropylene ether (industrial goods);
Code name: emulsion splitter 101.Consult " Chinese tensio-active agent overview " book of Huang Hongzhou chief editor, the 475th page, Chemical Industry Press publishes.
Purposes: low temperature, fast, high-efficient demulsifier, be applicable to the dewatering agent of intermediate base and paraffinic crude.
Production unit: general petrochemical works, Xi'an.
3, N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 (industrial goods); Consult " Chinese tensio-active agent overview " book of Huang Hongzhou chief editor, the 463rd page, Chemical Industry Press publishes.
Purposes: permeate agent, emulsifying agent, wetting agent.
Production unit: Zhejiang Provincial Chemical Engineering Research Inst.
4, Sodium Nitrite (industrial goods);
5, vitamin A;
6, methyl alcohol;
7, water.
Each weight percentages of components of ternary combination flooding produced liquid emulsion splitter that processing contains clay is:
Emulsion splitter TA5031 (industrial goods): 23.5～28.5%;
Rosin Amine D polyoxyethylene polyoxypropylene ether (industrial goods): 25～35%;
N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 (industrial goods): 1.5～2.6%;
Sodium Nitrite (industrial goods): 0.5～1.5%;
Vitamin A: 0.05～1.0%;
Methyl alcohol: 15～20%;
All the other are water;
Each weight percentages of components sum equals 100%.
Two, handle the preparation of the ternary combination flooding produced liquid emulsion splitter that contains clay:
Major equipment:
Enamel reaction still with 2000L of stirring, heating, cooling and vacuum system.
The preparation method:
At first, emulsion splitter TA5031, rosin Amine D polyoxyethylene polyoxypropylene ether, N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7, Sodium Nitrite, five kinds of raw materials of vitamin A are added enamel reaction still in proportion.Slowly be warmed up to 55～70 ℃.
Secondly, under constantly stirring, add the first alcohol and water in proportion, continue to stir after 30 minutes, stop heating.
At last, stir, be cooled to room temperature while cooling off.Obtain handling the emulsion splitter that contains clay behind the ternary composite driving in the extraction liquid.
The invention has the beneficial effects as follows: the processing of adopting present method to prepare contains the ternary combination flooding produced liquid emulsion splitter of clay, suitable processing contains the oil well produced liquid of a large amount of clays, dehydration temperaturre is at 50 ℃, dosage is 100mg/L, can effectively the profit clay in the oil well produced liquid be separated, and is moisture less than 0.5% in the crude oil after the dehydration, oil-containing is less than 100mg/L in the sewage, the sewage quality has reached the dehydrating of crude oil standard-required, has improved dewatering efficiency, has lowered the consumption of emulsion splitter.Once add this emulsion splitter, can finish existing emulsion splitter dehydration and water purification agent desanding effect; Reduce and take treatment facility.
Embodiment
Embodiment 1:
Each weight percentages of components of ternary combination flooding produced liquid emulsion splitter that processing contains clay is:
Emulsion splitter TA5031 (industrial goods): 22.5%;
Rosin Amine D polyoxyethylene polyoxypropylene ether (industrial goods): 33.5%;
N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 (industrial goods): 1.7%;
Sodium Nitrite (industrial goods): 0.8%;
Vitamin A: 0.09%;
Methyl alcohol: 16%;
Water: 25.41%.
Processing contains the preparation method of the ternary combination flooding produced liquid emulsion splitter of clay, and the equipment of employing is one of enamel reaction still with 2000L of stirring, heating, cooling and vacuum system.Preparation 1500Kg handles the emulsion splitter of the ternary combination flooding produced liquid that contains clay.
At first, emulsion splitter TA5031, rosin Amine D polyoxyethylene polyoxypropylene ether, N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7, Sodium Nitrite, five kinds of raw materials of vitamin A are added enamel reaction still in above-mentioned ratio.Slowly be warmed up to 60 ℃, approximately heated up 3 hours.
Secondly, under continuous stirring state, add the first alcohol and water according to the above ratio, continue to stir after 30 minutes, stop heating.
At last, stir, be cooled to 25 ℃ of room temperatures while cooling off.Obtain handling the emulsion splitter that contains clay behind the ternary composite driving in the extraction liquid.
Processing contains the consumption of the ternary combination flooding produced liquid emulsion splitter of clay: when dehydration temperaturre was 50 ℃, dosage was 100mg/L, and moisture less than 0.5% in the crude oil of dehydration back, oil-containing is less than 100mg/L in the sewage.Reached the dehydrating of crude oil index.
Embodiment 2～5: handle each weight percentages of components of ternary combination flooding produced liquid emulsion splitter that contains clay:
| The component title | Example 2% | Example 3% | Example 4% | Example 5% |
| Emulsion splitter TA5031 | 24.5 | 26 | 27 | 28 |
| Rosin Amine D polyoxyethylene polyoxypropylene ether (emulsion splitter 101) | 31.5 | 30 | 29 | 23 |
| N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7 | 1.9 | 2.1 | 2.3 | 2.5 |
| Sodium Nitrite | 0.9 | 1 | 1.3 | 1.4 |
| Vitamin A | 0.06 | 0.08 | 0.07 | 0.06 |
| Methyl alcohol | 18 | 17 | 16.3 | 19 |
| Water | 23.14 | 23.82 | 24.03 | 26.04 |
The preparation method of ternary combination flooding produced liquid emulsion splitter that the processing of embodiment 2～5 contains clay is identical with embodiment 1.
Utilize the present invention to try out in North China Oilfield the 5th oil recovery factory, moisturely in the crude oil after the dehydration reach 0.1% from June, 2007; Oil-containing is less than 100mg/L in the sewage.Reach the dehydrating of crude oil standard-required, improved dewatering efficiency, lowered the consumption of emulsion splitter.
Claims (1)
1. a processing contains the ternary combination flooding produced liquid emulsion splitter of clay, and it is characterized in that: each weight percentages of components is:
Emulsion splitter TA5031:23.5～28.5%; Rosin Amine D polyoxyethylene polyoxypropylene ether: 25～35%; N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7: 1.5～2.6%; Sodium Nitrite: 0.5～1.5%; Vitamin A: 0.05～1.0%; Methyl alcohol: 15～20%; All the other are water, and each weight percentages of components sum equals 100%;
Its preparation method comprises the following steps:
At first, emulsion splitter TA5031, rosin Amine D polyoxyethylene polyoxypropylene ether, N-ethyl perfluorinated octyl sulfuryl amine Soxylat A 25-7, Sodium Nitrite, five kinds of raw materials of vitamin A are added enamel reaction still in proportion; Slowly be warmed up to 55～70 ℃;
Secondly, under continuous stirring state, add the first alcohol and water in proportion, finish and added behind the first alcohol and water restir 30 minutes, stop heating;
At last, stir, be cooled to room temperature, obtain handling the ternary combination flooding produced liquid emulsion splitter that contains clay while cooling off.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102262785A CN101407354B (en) | 2008-11-12 | 2008-11-12 | Demulsifying agent for processing clay-containing ternary complex drive produced liquid |
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| CN2008102262785A CN101407354B (en) | 2008-11-12 | 2008-11-12 | Demulsifying agent for processing clay-containing ternary complex drive produced liquid |
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| CN101407354A CN101407354A (en) | 2009-04-15 |
| CN101407354B true CN101407354B (en) | 2011-04-20 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101955765B (en) * | 2010-08-05 | 2013-02-13 | 中国石油天然气股份有限公司 | Flushing fluid for oil well lined with oil tube |
| CN103801114B (en) * | 2014-02-19 | 2016-05-04 | 张征北 | The purification auxiliary agent of producing for Coal Chemical Industry and the application of producing in Coal Chemical Industry thereof |
| CN104449813B (en) * | 2014-11-10 | 2016-01-20 | 天津亿利科能源科技发展股份有限公司 | Offshore oilfield efficiently processes the emulsion splitter of high argillaceous composition crude oil oily water separation |
| CN106920991A (en) * | 2015-12-25 | 2017-07-04 | 张家港市国泰华荣化工新材料有限公司 | A kind of lithium battery electrolytes and lithium battery for improving wellability |
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