CN103952177A - Water purification type demulsifier for tertiary oil recovery, and preparation method thereof - Google Patents
Water purification type demulsifier for tertiary oil recovery, and preparation method thereof Download PDFInfo
- Publication number
- CN103952177A CN103952177A CN201410118340.4A CN201410118340A CN103952177A CN 103952177 A CN103952177 A CN 103952177A CN 201410118340 A CN201410118340 A CN 201410118340A CN 103952177 A CN103952177 A CN 103952177A
- Authority
- CN
- China
- Prior art keywords
- oil recovery
- tertiary oil
- emulsion splitter
- purified water
- type emulsion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Polyethers (AREA)
Abstract
The present invention discloses a novel water purification type demulsifier for tertiary oil recovery, wherein sorbitol and ethylene oxide and/or propylene oxide are polymerized according to a ratio of 1:10-100, and dilution is performed with methanol and water to obtain the finished product. The present invention further discloses a preparation method for the water purification type demulsifier for tertiary oil recovery, wherein the method comprises that sorbitol, ethylene oxide (EO) and propylene oxide (PO) are polymerized at a temperature of 130-140 DEG C according to a certain ratio to prepare the finished product. The water purification type demulsifier has characteristics of good demulsification performance and good water purification capability, such that the singleness of the existing demulsifier is solved, and the agent addition concentration is substantially reduced.
Description
Technical field
The present invention relates to the preparation method of emulsion splitter; Particularly used for tertiary oil recovery purified water type emulsion splitter of a kind of economic benefits and social benefits tensio-active agent that has breakdown of emulsion and water purification concurrently and preparation method thereof, belongs to oilfield chemical technology field.
Background technology
In recent years, along with Oil extraction enters the middle and later periods, former difficult mining-employed reserves (as high viscous oil, super viscous crude, the poor oil reservoir of geologic condition) is progressively exploitation now, usedly adopt by force injection well stimulation and day by day increase, cause Produced Liquid character in current performance history, compared with primary oil recovery, secondary phase of oil production, significant change has occurred, the particularly extensive enforcement of tertiary oil recovery, makes Produced Liquid character more complicated, and this processes also to ground profit and brings larger difficulty.Colloid in crude oil, asphalt content increases, and makes crude oil emulsion more stable; Add continually developing of oil recovery technique, the chemical flooding at home application of each elephant is more and more extensive, due to adding of alkali, tensio-active agent and polymkeric substance in chemical flooding, changed the state of conventional crude Produced Liquid, emulsion increases the weight of, and makes breakdown of emulsion process become difficult, makes the component of crude oil become more complicated, oil field produced crude oil water containing saliferous rate increases year by year, and this has just increased the weight of the task of dehydrate and desalt of crude oil.In crude oil, contain above impurity, can increase pump, the load of pipeline and storage tank, causes corrosion and fouling; And impure environmental pollution and the crude oil of also can causing is wasted in the water of discharge.No matter from economic angle, be convenient to sale and the processing of oil, or from environment protection angle, the water of discharge does not affect the recycling of industrial and agricultural production, all needs crude oil to carry out breaking emulsion and dewatering and sewage purification, therefore the research of purified water type emulsion splitter is very necessary.
Also there is at present the product on a small quantity with certain universality.For example the multiple polyether mixture of a kind of collection and vinylformic acid carry out esterification under acidic conditions, under the effect of initiator, carry out radical polymerization, generate carboxylate, then it is partially end-blocked with toxilic acid, to carry out esterification, generates acrylic acid modified polymer purified water type emulsion splitter.Above patent is mainly for high water-content crude oil or sewage, and the degree of depth breakdown of emulsion of its downstream crude oil is had to larger impact, has limited its development and application.The present invention, also around propylene oxide and ethylene oxide block polyethers, by improving the molecular structure of poly-head, improves water purification and the dewatering of its single dose, has reached the application level of used for tertiary oil recovery emulsion splitter.
Summary of the invention
The object that the present invention will reach:
First object of the present invention is that a kind of product that can replace the purified water types such as existing reverse-phase emulsifier, poly-aluminium and polyacrylamide will be provided;
Second object of the present invention is that a kind of emulsion splitter with good demulsification performance will be provided;
The 3rd object of the present invention is that a kind of multi-functional emulsion splitter of used for tertiary oil recovery that meets will be provided;
The 4th object of the present invention is that a kind of high-performance tensio-active agent later stage crude Treatment not being impacted will be provided.
Technical scheme of the present invention:
A kind of used for tertiary oil recovery purified water type emulsion splitter, it is characterized in that: its effective constituent is the high polymer being polymerized in proportion under the condition of catalyzer by Sorbitol Powder and oxirane, 130～140 ℃ of the temperature of polyreaction, reaction pressure≤0.4Mpa, wherein, mass ratio 1:10～100 of Sorbitol Powder and oxirane, described oxirane is selected from the mixture of the one or both in oxyethane, propylene oxide.
The preparation method of described a kind of used for tertiary oil recovery purified water type emulsion splitter, is characterized in that:
Sorbitol Powder and catalyzer are added in polyether reactant still, open and stir, by heating material to 100 ℃～l10 ℃, vacuum hydro-extraction, while distillating to exclusion, closes vacuum valve, make pressure in still approach-0.08～-0.10 Mpa, slowly pass on request oxyethane or the propylene oxide of metering again, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130～140 ℃; Logical finishing, maintains temperature of reaction, continues to stir aging absorption to pressure and no longer declines, and reaction finishes, and after the solvent that passes into metering is mixed evenly, discharging obtains demulsifier product.
Described Sorbitol Powder is medical rank, and content is 73%, and purity is 98.5%.
Described catalyzer is highly basic and the sodium alkoxide mixture of 1:0～20 in mass ratio, and catalyzer dosage is 1 ‰ of oxirane quality～4 ‰.
The mass ratio that oxyethane described in during polyreaction mixes with propylene oxide is 1:1～3.
Described solvent is the aqueous solution of methyl alcohol, and the mass ratio of first alcohol and water is 3:2.
Beneficial effect of the present invention:
A kind of used for tertiary oil recovery emulsion splitter of the present invention is bifunctional medicament, possesses and has very strong close electric charge ability to be enough to the negative charge that balance emulsifying agent forms; And there is very strong tensio-active agent, can destroy the interfacial energy of milk sap, have that oily water separation speed is fast, a low feature of oleaginousness in water.
Accompanying drawing explanation
Fig. 1 is the polymerization process schematic diagram of phenol-amine resin and oxyethane, propylene oxide.
embodiment
Below in conjunction with embodiment, further illustrate the preparation of used for tertiary oil recovery emulsion splitter (water purification agent), but the present invention is not limited to these embodiment.
Embodiment 1
The first step
Sorbitol Powder 300kg and 4kg catalyzer are added in polyether reactant still, open and stir, by heating material to 100 ℃～l10 ℃, vacuum hydro-extraction (approximately needing 0.5h), while distillating to exclusion, closes vacuum valve, make pressure in still approach-0.08～-0.10 Mpa, slowly pass on request 2700kg oxyethane, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130～140 ℃; Logical finishing, maintains temperature of reaction, continues to stir aging absorption to pressure and no longer declines, and reaction finishes, and discharging is standby, and catalyzer is the mass ratio 1:1 mixture of highly basic and sodium alkoxide.
Second step
Above-mentioned material 300kg and 9kg catalyzer are added in polyether reactant still, open and stir, by heating material to 100 ℃～l10 ℃, vacuum hydro-extraction (approximately needing 0.5h), when distillate to exclusion, close vacuum valve, make pressure in still approach-0.08～-0.10 Mpa, slowly pass into 2700kg oxyethane, 3000kg propylene oxide, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130～140 ℃; Logical finishing, maintains temperature of reaction, continues to stir aging absorption to pressure and no longer declines, reaction finishes, after passing into 6000kg methanol-water and being mixed evenly, blowing obtains demulsifier product, methyl alcohol and water mass ratio be 3:2, catalyzer is the mass ratio 1:0.5 mixture of highly basic and sodium alkoxide.
Detecting this emulsion splitter is 82.41% for the sewage degrease rate of lonely four joint stations in isolated island oil recovery factory.
Embodiment 2
The first step
Sorbitol Powder 250kg and 4kg catalyzer are added in polyether reactant still, open and stir, by heating material to 100 ℃～l10 ℃, vacuum hydro-extraction (approximately needing 0.5h), while distillating to exclusion, closes vacuum valve, make pressure in still approach-0.08～-0.10 Mpa, slowly pass into 2500kg oxyethane, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130～140 ℃; Logical finishing, maintains temperature of reaction, continues to stir aging absorption to pressure and no longer declines, and reaction finishes, and discharging is standby, and catalyzer is the mass ratio 1:3 mixture of highly basic and sodium alkoxide.
Second step
Above-mentioned material 250kg and 8kg catalyzer are added in polyether reactant still, open and stir, by heating material to 100 ℃～l10 ℃, vacuum hydro-extraction (approximately needing 0.5h), when distillate to exclusion, close vacuum valve, make pressure in still approach-0.08～-0.10 Mpa, slowly pass into 2500kg oxyethane, 3250kg propylene oxide, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130～140 ℃; Logical finishing, maintains temperature of reaction, continues to stir aging absorption to pressure and no longer declines, reaction finishes, after passing into 6000kg methanol-water and being mixed evenly, blowing obtains demulsifier product, methyl alcohol and water mass ratio be 3:2, catalyzer is the mass ratio 1:10 mixture of highly basic and sodium alkoxide.
Detecting this emulsion splitter is 85.18% for the sewage degrease rate of lonely four joint stations in isolated island oil recovery factory.
Embodiment 3
The first step
Sorbitol Powder 250kg and 7kg catalyzer are added in polyether reactant still, open and stir, by heating material to 100 ℃～l10 ℃, vacuum hydro-extraction (approximately needing 0.5h), while distillating to exclusion, closes vacuum valve, make pressure in still approach-0.08～-0.10 Mpa, slowly pass into 3000kg oxyethane, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130～140 ℃; Logical finishing, maintains temperature of reaction, continues to stir aging absorption to pressure and no longer declines, and reaction finishes, and discharging is standby.
Second step
Above-mentioned material 300kg and 12kg catalyzer are added in polyether reactant still, open and stir, by heating material to 100 ℃～l10 ℃, vacuum hydro-extraction (approximately needing 0.5h), when distillate to exclusion, close vacuum valve, make pressure in still approach-0.08～-0.10 Mpa, slowly pass into 2500kg oxyethane, 4250kg propylene oxide, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130～140 ℃; Logical finishing, maintains temperature of reaction, continues to stir aging absorption to pressure and no longer declines, reaction finishes, after passing into 7050kg methanol-water and being mixed evenly, blowing obtains demulsifier product, methyl alcohol and water mass ratio be 3:2, catalyzer is the mass ratio 1:3 mixture of highly basic and sodium alkoxide.
Detecting this emulsion splitter is 83.33% for the sewage degrease rate of lonely four joint stations in isolated island oil recovery factory.
Claims (6)
1. a used for tertiary oil recovery purified water type emulsion splitter, it is characterized in that: its effective constituent is the high polymer being polymerized in proportion under the condition of catalyzer by Sorbitol Powder and oxirane, 130～140 ℃ of the temperature of polyreaction, reaction pressure≤0.4Mpa, wherein, mass ratio 1:10～100 of Sorbitol Powder and oxirane, described oxirane is selected from the mixture of the one or both in oxyethane, propylene oxide.
2. the preparation method of a kind of used for tertiary oil recovery purified water type emulsion splitter as claimed in claim 1, is characterized in that:
Sorbitol Powder and catalyzer are added in polyether reactant still, open and stir, by heating material to 100 ℃～l10 ℃, vacuum hydro-extraction, while distillating to exclusion, closes vacuum valve, make pressure in still approach-0.08～-0.10 Mpa, slowly pass on request oxyethane or the propylene oxide of metering again, control reaction pressure≤0.4Mpa, temperature of reaction keeps 130～140 ℃; Logical finishing, maintains temperature of reaction, continues to stir aging absorption to pressure and no longer declines, and reaction finishes, and after the solvent that passes into metering is mixed evenly, discharging obtains demulsifier product.
3. a kind of used for tertiary oil recovery purified water type emulsion splitter according to claim 1, is characterized in that: described Sorbitol Powder is medical rank, and content is 73%, and purity is 98.5%.
4. a kind of used for tertiary oil recovery purified water type emulsion splitter according to claim 1, is characterized in that: described catalyzer is highly basic and the sodium alkoxide mixture of 1:0～20 in mass ratio, and catalyzer dosage is 1 ‰ of oxirane quality～4 ‰.
5. a kind of used for tertiary oil recovery purified water type emulsion splitter according to claim 1, is characterized in that: the mass ratio that the oxyethane described in during polyreaction mixes with propylene oxide is 1:1～3.
6. the preparation method of a kind of used for tertiary oil recovery purified water type emulsion splitter according to claim 2, is characterized in that: the aqueous solution that described solvent is methyl alcohol, the mass ratio of first alcohol and water is 3:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118340.4A CN103952177A (en) | 2014-03-27 | 2014-03-27 | Water purification type demulsifier for tertiary oil recovery, and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118340.4A CN103952177A (en) | 2014-03-27 | 2014-03-27 | Water purification type demulsifier for tertiary oil recovery, and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103952177A true CN103952177A (en) | 2014-07-30 |
Family
ID=51329537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410118340.4A Pending CN103952177A (en) | 2014-03-27 | 2014-03-27 | Water purification type demulsifier for tertiary oil recovery, and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103952177A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650957A (en) * | 2015-02-11 | 2015-05-27 | 胜利油田胜利化工有限责任公司 | Preparation method of novel polyol demulsifier |
| CN104650336A (en) * | 2015-02-11 | 2015-05-27 | 胜利油田胜利化工有限责任公司 | Preparation method of novel organic amine demulsifier |
| CN108585156A (en) * | 2018-05-15 | 2018-09-28 | 天津正达科技有限责任公司 | A kind of flocculant and preparation method thereof removing COD in coal gasification phenol wastewater |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2305124C1 (en) * | 2006-02-22 | 2007-08-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Composition for dehydration and desalting of crude oil (embodiments) |
| CN102453253A (en) * | 2010-10-21 | 2012-05-16 | 中国石油化工集团公司 | Method for preparing higher primary hydroxyl polyether polyalcohol |
-
2014
- 2014-03-27 CN CN201410118340.4A patent/CN103952177A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2305124C1 (en) * | 2006-02-22 | 2007-08-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Composition for dehydration and desalting of crude oil (embodiments) |
| CN102453253A (en) * | 2010-10-21 | 2012-05-16 | 中国石油化工集团公司 | Method for preparing higher primary hydroxyl polyether polyalcohol |
Non-Patent Citations (2)
| Title |
|---|
| 期刊上未显示: "化学破乳剂", 《胜利石油化工》 * |
| 李岿等: "清水型特（超）稠油破乳剂的结构与性能", 《日用化学品科学》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650957A (en) * | 2015-02-11 | 2015-05-27 | 胜利油田胜利化工有限责任公司 | Preparation method of novel polyol demulsifier |
| CN104650336A (en) * | 2015-02-11 | 2015-05-27 | 胜利油田胜利化工有限责任公司 | Preparation method of novel organic amine demulsifier |
| CN108585156A (en) * | 2018-05-15 | 2018-09-28 | 天津正达科技有限责任公司 | A kind of flocculant and preparation method thereof removing COD in coal gasification phenol wastewater |
| CN108585156B (en) * | 2018-05-15 | 2021-05-04 | 天津正达科技有限责任公司 | Flocculant for removing COD (chemical oxygen demand) in coal gasification phenol-containing wastewater and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102993434B (en) | Preparation method of crude oil rapid demulsifying agent | |
| CN103642518B (en) | A kind of oil field High water cut thick oil demulsifier and preparation method thereof | |
| CN101831316A (en) | Polyelement composite heavy oil emulsion splitter and preparation method thereof | |
| CN104399405B (en) | Aryl alkyl polyoxyethylene ether sulfobetaine surfactant, preparation method and application thereof | |
| CN102925204B (en) | Foam combination flooding produced liquid demulsifier and preparation method thereof | |
| CN107973506B (en) | Demulsifier for conditioning and three-phase separation of oily sludge and preparation method thereof | |
| CN102533314B (en) | Quick petroleum deemulsifier and preparation method thereof | |
| CN104945612A (en) | Efficient emulsion breaker containing polymer for processing crude oil and preparation method thereof | |
| CN102382675A (en) | Preparation method of polymer-containing emulsified crude oil emulsion breaker | |
| CN103952177A (en) | Water purification type demulsifier for tertiary oil recovery, and preparation method thereof | |
| CN109135807A (en) | A kind of high-efficient demulsifier | |
| CN104262603A (en) | Polyether demulsifier taking polyether amine as initiator and preparation method of polyether demulsifier | |
| CN105295017B (en) | A kind of low temperature crude oil demulsifier and preparation method thereof | |
| CN103146418B (en) | Method for preparing SD-3 demulsifier | |
| CN109593548B (en) | Low-temperature demulsifier and preparation method thereof | |
| CN111203005A (en) | Oil-containing wastewater demulsifier and preparation method and application thereof | |
| CN104673359B (en) | A kind of preparation method of phenolic aldehyde amine resinae demulsifier | |
| CN102268282B (en) | Broad-spectrum demulsifier and preparation method thereof | |
| CN104099078A (en) | Emulsification viscosity reduction agent for deep high-asphaltene super-heavy oil shaft | |
| CN104650336A (en) | Preparation method of novel organic amine demulsifier | |
| CN102559244A (en) | Demulsifying and water-purifying agent for treating produced liquid of polymer injecting area and preparation method thereof | |
| CN113444237B (en) | Quaternized polyether reverse demulsifier and preparation method thereof | |
| CN110182895B (en) | Oil removing agent for polymer-containing sewage treatment in oil field and preparation method thereof | |
| CN111056593B (en) | Fluoropolyether-containing thick oil water purifier | |
| CN105273179A (en) | Preparation method for high-temperature-resistant thick oil demulsifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140730 |
|
| RJ01 | Rejection of invention patent application after publication |