CN102559244A - Demulsifying and water-purifying agent for treating produced liquid of polymer injecting area and preparation method thereof - Google Patents
Demulsifying and water-purifying agent for treating produced liquid of polymer injecting area and preparation method thereof Download PDFInfo
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- CN102559244A CN102559244A CN2011104361787A CN201110436178A CN102559244A CN 102559244 A CN102559244 A CN 102559244A CN 2011104361787 A CN2011104361787 A CN 2011104361787A CN 201110436178 A CN201110436178 A CN 201110436178A CN 102559244 A CN102559244 A CN 102559244A
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- oxyethane
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Abstract
The invention discloses a demulsifying and water-purifying agent (named as SCL-1 below) for treating produced liquid of a polymer injecting area and a preparation method thereof. An ROMAX hydrophobic associating polymer, demulsifier polyether BHY-69, demulsifier polyether BY-06 and demulsifier polyether BY-121 are sequentially thrown into a reaction kettle according to weight percentages of 10 percent, 65 percent, 10 percent and 15 percent; then a catalyst is added to the reaction kettle; a chain extender C3H5CIO is introduced into the reaction kettle at a temperature of 70 DEG C to 80 DEG C; after the chain extender is completely dripped, the temperature is preserved and a reaction is conducted for 2 hours; then the temperature is reduced to 50 DEG C, acid is added to neutralize an obtained polymer solution until a pH (potential of hydrogen) is equal to 7; and a solvent is added to the polymer solution and stirred for 30 minutes, then the polymer solution is discharged and packaged and the demulsifying water purifying agent for treating the produced liquid of the polymer injection area is obtained. The agent has various wastewater treatment abilities, such as demulsification, dehydration, water purification by flocculants, and middle emulsion layer elimination, and has the advantages of small use amount and good effect. In addition, the SCL-1 can further reduce viscosity loss of the polymer solution while improving the wastewater quality.
Description
Technical field
The present invention relates to intensified oil reduction technology such as polymer flooding, especially a kind of injection region extraction liquid is handled with breakdown of emulsion water purification agent (following called after SCL-1) and preparation method thereof.
Background technology
Intensified oil reduction technology such as polymer flooding are used in oil development is produced on a large scale, produce the oily(waste)water of a large amount of strong emulsification high stabilities.Make the oil-contaminated water of oil field intractability strengthen, even can't handle and make the processing power of building the oily water treatment station significantly to descend that back water quality severe overweight is handled because processing power causes inadequately in part oily water treatment station.
Since in the polymer flooding oily(waste)water residual anion-polyacrylamide can with conventional cationic flocculant and the coagulating agent that uses in the water drive oily water treatment; Electrical neutralization reaction takes place; On the one hand the required dose that adds is enlarged markedly; The flco that formed on the other hand adhesive power is very strong also can cause oil-containing sewage filter to stop up, and makes that the deoiling effect that in the polymer flooding oily water treatment, adds cationic flocculant and coagulating agent is bad.High to injection region extraction sewage viscosity, oil-water emulsion serious, carry that the suspended solid ability is strong, oil droplet and solid particulate come-up or the resistance that sinks is big and to characteristics such as the absorption loss of chemical processing agent are serious, the injection region extraction liquid of development is handled and has been solved the difficult and oily water separation speed of polyidal field extraction sewage water-oil emulsion breakdown of emulsion effectively with breakdown of emulsion water purification agent SCL-1 and wait a guardian technique difficult problem slowly.
Summary of the invention
The object of the invention is exactly the above-mentioned defective that exists to prior art, provides a kind of injection region extraction liquid to handle with breakdown of emulsion water purification agent SCL-1 and preparation method thereof.
At first select the ROMAX hydrophobic associated polymer (production of U.S. Rhom and Hass) of a kind of U.S. import,
Three kinds of emulsion splitter polyethers BHY-69, BY-06, BY-121 with synthetic different structure; Then with ROMAX hydrophobic associated polymer, three kinds of emulsion splitter polyethers BHY-69, BY-06, BY-121 according to weight percent 10%, 65%, 10%, 15%; Drop into successively in the reaction kettle, under 70～80 ℃, pass through C
3H
5CIO (1-chloro-2.3-propylene oxide) mixes chain extension under 50 ℃, obtain doing agent, will do agent at last and place compounding kettle to add CH down at 50 ℃
3OH, pure water stir and obtain the processing of injection region extraction liquid with breakdown of emulsion water purification agent SCL-1.
The invention has the beneficial effects as follows: (1) is in the formulation optimization process; Introduced molecule modification first; Non-ionics polyethers and hydrophobic associated polymer are carried out structure and performance transformation jointly; Improved the oleophylic ability of reactive group in the molecule, strengthened the adsorptive power of molecule at water-oil interface; Increase molecular weight, improved molecular bridge flocculation ability etc.(2) compatibleness of breakdown of emulsion water purification agent and polymkeric substance is introduced the research of injection region sewage disposal technology.To supply with notes in view of the sewage after handling and gather preparation and the injection that the station is used for polymers soln; The compatibleness of all kinds of related reagents and SEPIGEL 305 is the basis and the prerequisite of performance evaluation and screening all the time in the formulating of recipe process, in the injection allocation process, polymers soln is not had any detrimentally affect to guarantee chemical agent residual in the water.
Embodiment
Below in conjunction with specific embodiment, the present invention is elaborated.
Embodiment 1
In high-temperature high-pressure reaction kettle, drop into the 2kg Fatty Alcohol(C12-C14 and C12-C18), 10kg Pottasium Hydroxide, vacuum-treat 20 minutes keeps 120～130 ℃, below the pressure 0.2Mpa, advances 2031kg oxyethane; At 130～140 ℃, advance propylene oxide 894kg below the pressure 0.2MPa; Charging finishes, and 30 minutes cooling discharge 3250kg of vacuum-treat BHY-69 is reduced to-0.08MPa in vexed still reaction until pressure.
Embodiment 2
In high-temperature high-pressure reaction kettle, drop into the 3.75kg polyethylene polyamine, 4.5kg Pottasium Hydroxide, vacuum-treat 20 minutes keeps 120～130 ℃, below the pressure 0.2Mpa, advances 750kg oxyethane; At 130～140 ℃, advance propylene oxide 750kg below the pressure 0.2MPa; Charging finishes, and 30 minutes cooling discharge 1500kg of vacuum-treat BY-06 is reduced to-0.08MPa in vexed still reaction until pressure.
Embodiment 3
In high-temperature high-pressure reaction kettle, drop into the starlike resin of 5kg, 6kg Pottasium Hydroxide, vacuum-treat 20 minutes keeps 120～130 ℃, below the pressure 0.2Mpa, advances 450kg oxyethane; At 130～140 ℃, advance propylene oxide 1550kg below the pressure 0.2MPa; Charging finishes, and 30 minutes cooling discharge 2000kg of vacuum-treat BY-121 is reduced to-0.08MPa in vexed still reaction until pressure.
Embodiment 4
500kgROMAX hydrophobic associated polymer and 3250kgBHY-69,500kgBY-06,750kg BY-121 are dropped into reaction kettle, add 60kg catalyzer Pottasium Hydroxide, be warming up to 70～80 ℃, beginning slowly drips chainextender C
3H
5CIO, the chainextender dosage is 100kg, drips the back insulation reaction 2 hours, is cooled to 50 ℃, adds acid and is neutralized to PH=7, adds 2500kg CH
3OH, 2500kg pure water stir and went out product SCL-1 packing in 30 minutes.
This medicament has multiple sewage treatment capacity such as breaking emulsion and dewatering, flocculation water purification and elimination emulsification middle layer, and consumption is few, and is effective.Adopt conventional dose to handle oil recovery liquid sewage, its externally discharged waste water oleaginousness average out to 200mg/L; After adopting the SCL-1 chemicals treatment, its externally discharged waste water oleaginousness is reduced to 50mg/L.When improving sewage quality, SCL-1 can also reduce the polymer solution viscosity loss in addition, and the polymer solution viscosity loss amount has reduced by 88.59%.These performances are superior to the product of domestic other producers.The advantage of present technique is can potion to replace pre-dehydrating agent, emulsion splitter and the water purification agent various medicaments of present widespread usage.Preparation characteristic aggregation thing and emulsion splitter polyethers carry out chain extension jointly.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.
Claims (3)
1. an injection region extraction liquid is handled the preparation method with the breakdown of emulsion water purification agent, it is characterized in that, may further comprise the steps:
With ROMAX hydrophobic associated polymer, emulsion splitter polyethers BHY-69, emulsion splitter polyethers BY-06, emulsion splitter polyethers BY-121 according to weight percent 10%, 65%, 10%, 15%; Drop in the reaction kettle successively; Add catalyzer and account for 1.2% of ROMAX hydrophobic associated polymer, emulsion splitter polyethers BHY-69, emulsion splitter polyethers BY-06 and emulsion splitter polyethers BY-121 gross weight, connect C through expanding down at 70～80 ℃
3H
5CIO; The chainextender dosage be catalyzer account for ROMAX hydrophobic associated polymer, emulsion splitter polyethers BHY-69, emulsion splitter polyethers BY-06 and emulsion splitter polyethers BY-121 gross weight 2%; Dripped the back insulation reaction 2 hours; Be cooled to 50 ℃, add acid and be neutralized to PH=7, the discharging in 30 minutes of adding stirring solvent is packaged to be the processing of injection region extraction liquid and uses the breakdown of emulsion water purification agent; Said solvent is CH
3OH, and pure water, CH
3The weight ratio of OH and pure water 1: 1, said solvent gross weight and ROMAX hydrophobic associated polymer, emulsion splitter polyethers BHY-69, emulsion splitter polyethers BY-06 and emulsion splitter polyethers BY-121 gross weight equate.
2. preparation method according to claim 1; It is characterized in that; Said emulsion splitter polyethers BHY-69, emulsion splitter polyethers BY-06, emulsion splitter polyethers BY-121 are respectively: emulsion splitter polyethers BHY-69 is to be that initiator and oxyethane, propylene oxide carry out many block polymerizations and form with the active base of long-chain list, and initiator accounts for 0.06% of total amount, and catalyzer accounts for about 0.3%; Oxyethane accounts for 62.5%, and propylene oxide accounts for 37.5%; Emulsion splitter polyethers BY-06 is that so that how active basic polyethylene polyamines are that initiator and oxyethane, the many block polymerizations of propylene oxide form initiator accounts for 0.25% of total amount, catalyzer about 0.3%, and oxyethane accounts for 50%, and propylene oxide accounts for 50%; Emulsion splitter polyethers BY-121 is to be that initiator and oxyethane, the many block polymerizations of propylene oxide form with starlike resin, and initiator accounts for 0.25% of total amount, and catalyzer 0.3% oxyethane accounts for 22.5%, and propylene oxide accounts for 78.5%.Polymerizing condition is following: in high-temperature high-pressure reaction kettle, drop into initiator, and catalyzer, vacuum-treat 20 minutes keeps 120～130 ℃, below the pressure 0.2Mpa, advances oxyethane; At 130～140 ℃, advance propylene oxide below the pressure 0.2MPa; Charging finishes, and 30 minutes cooling discharges of vacuum-treat are reduced to-0.08MPa in vexed still reaction until pressure.
3. handle according to the injection region extraction liquid of claim 1 or 2 said preparing method's preparations and use the breakdown of emulsion water purification agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104361787A CN102559244A (en) | 2011-12-23 | 2011-12-23 | Demulsifying and water-purifying agent for treating produced liquid of polymer injecting area and preparation method thereof |
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| CN2011104361787A CN102559244A (en) | 2011-12-23 | 2011-12-23 | Demulsifying and water-purifying agent for treating produced liquid of polymer injecting area and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146418A (en) * | 2013-02-28 | 2013-06-12 | 滨州学院 | Method for preparing SD-3 demulsifier |
| CN103965459A (en) * | 2014-05-13 | 2014-08-06 | 新疆福利精细化工厂 | Preparation method of demulsifying agent |
| CN105606489A (en) * | 2014-10-28 | 2016-05-25 | 中国石油天然气股份有限公司 | Polymer solution viscosity loss online detection system and process |
| CN110387255A (en) * | 2018-04-23 | 2019-10-29 | 盘锦富隆化工有限公司 | A kind of non-ionic water-soluble heavy crude desalination demulsifier and preparation method thereof |
-
2011
- 2011-12-23 CN CN2011104361787A patent/CN102559244A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146418A (en) * | 2013-02-28 | 2013-06-12 | 滨州学院 | Method for preparing SD-3 demulsifier |
| CN103146418B (en) * | 2013-02-28 | 2015-06-17 | 滨州学院 | Method for preparing SD-3 demulsifier |
| CN103965459A (en) * | 2014-05-13 | 2014-08-06 | 新疆福利精细化工厂 | Preparation method of demulsifying agent |
| CN105606489A (en) * | 2014-10-28 | 2016-05-25 | 中国石油天然气股份有限公司 | Polymer solution viscosity loss online detection system and process |
| CN110387255A (en) * | 2018-04-23 | 2019-10-29 | 盘锦富隆化工有限公司 | A kind of non-ionic water-soluble heavy crude desalination demulsifier and preparation method thereof |
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Application publication date: 20120711 |