CN104629793A - Condensate oil emulsion de-emulsifier and applications thereof - Google Patents
Condensate oil emulsion de-emulsifier and applications thereof Download PDFInfo
- Publication number
- CN104629793A CN104629793A CN201310552699.8A CN201310552699A CN104629793A CN 104629793 A CN104629793 A CN 104629793A CN 201310552699 A CN201310552699 A CN 201310552699A CN 104629793 A CN104629793 A CN 104629793A
- Authority
- CN
- China
- Prior art keywords
- emulsion
- emulsifier
- water
- oil
- emulsifying
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/04—Dewatering or demulsification of hydrocarbon oils with chemical means
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a condensate oil emulsion de-emulsifier and applications thereof. The de-emulsifier is composed of the following components in percentage by weight: 5 to 10% of a benzene sulfonate anionic surfactant (branched sodium dodecyl benzene sulfonate), 5 to 20% of polyether nonionic surfactant (polyoxypropylene-polyoxyethylene-glycol ether), 10 to 30% of low-molecular-weight alcohol, which is one of ethylene glycol-butyl ether, ethanol, and isopropanol, and the balance being water. The de-emulsifier is applied to acidic gas fields producing condensate oil and is used to de-emulsifying emulsion, which is produced by using a cation-type corrosion inhibitor. The application concentration of the de-emulsifier by the production amount of the oil and water is 50 to 1000 ppm, the de-emulsifying temperature is 0 to 40 DEG C, and the de-emulsifying rate is not less than 95% within 10 minutes. The provided de-emulsifier has the characteristics of low de-emulsifying temperature, quick de-emulsifying speed, low mineral degree of applicable water, and good oil quality after de-emulsification.
Description
Technical field
The present invention relates to the acid gas field producing condensate oil, because using cationic inhibiter to form creaming of emulsion field, is the breakdown of emulsion application of a kind of demulsifier formulation in the condensate oil emulsion using cationic inhibiter to produce.
Background technology
In the exploitation of acid gas field, need filling inhibiter to carry out corrosion prevention to tubing and casing, and in the acid gas field producing condensate oil, condensate oil and local water can form more stable emulsion under the effect of inhibiter.The emulsion formed brings difficulty to the Separation and Recovery of condensate oil, can affect the efficiency of oily-water seperating equipment on the one hand, cause equipment to block, and the rate of recovery of condensate oil is reduced, can affect the normal production in gas field time serious; On the other hand because isolated local water contains more condensate oil, can give in the treating processes of local water and bring larger potential safety hazard.Therefore need to use emulsion splitter to accelerate the separation of profit, and as a rule, breakdown of emulsion operation need be carried out at normal temperatures, and site technique condition requires also higher to de-emulsification speed.
In acid gas field exploitation, the emulsion formed by inhibiter, condensate oil and local water mainly causes due to the emulsifying effect of inhibiter, different from the oil field produced emulsion of crude oil containing Surface Active Substance.Its oily water separation condition and separating technology also different, the refinery that is separated in of emulsion of crude oil carries out, and needs to carry out breakdown of emulsion under the effect of comparatively high temps and crude oil demulsifier; And the emulsion of output in gas-field exploitation, need in the gas collection flow process in gas field, be separated under normal temperature, and require faster velocity of separation to ensure not affect the normal production in gas field.
The research of domestic and international condensate oil emulsion breaking is less, and has no the acid gas field research that the condensate oil creaming of emulsion that formed is relevant because using inhibiter.The present invention is directed to the cationic inhibiter that acid gas field is conventional, by composite, provide the demulsifier formulation that a kind of de-emulsification speed is at normal temperatures fast, demulsification is good, solve the condensate oil of acid gas field after using inhibiter producing condensate oil and reclaim problem.
Summary of the invention
The object of this invention is to provide in a kind of acid gas field producing condensate oil, because using cationic inhibiter to form creaming of emulsion agent, accelerating profit break milk separation speed at normal temperatures, solving the Separation and Recovery problem of condensate oil.
Demulsifier formulation of the present invention is made up of in certain blending process and ratio benzene sulfonate anionic tensio-active agent, polyethers nonionogenic tenside, low molecule alcohol and water.
Know-why: benzene sulfonate anionic tensio-active agent has the effect reducing inhibiter emulsifying property with the effect of cationic inhibiter functional group, polyethers nonionogenic tenside has and destroys emulsion liquid membrane, accelerates oil phase and assemble the effect be separated, and low mass molecule alcohol and benzene sulfonate anionic tensio-active agent and polyether non-ionic surface active agent act synergistically and improve emulsion low-temperature demulsification speed.
The present invention is realized by following technical proposals:
Wherein, benzene sulfonate anionic tensio-active agent is branched dodecylbenzene sulfonic acid sodium, also can react obtained by branched dodecylbenzene sulfonic acid and sodium hydroxide; Polyether non-ionic surface active agent is polyoxyethylene polyoxypropylene glycol ethers; Low mass molecule alcohol is the one in butyl glycol ether, ethanol, Virahol; Water is distilled water or deionized water.
Can be used for producing condensate oil acid gas field, because using the output creaming of emulsion of cationic inhibiter, working concentration (by produce oil and Calculation of Water producing capacity) is 50ppm ~ 1000ppm, breakdown of emulsion temperature 0 DEG C ~ 40 DEG C, 10min demulsification efficiency >=95%.
Compound method: under normal temperature, adds water and low mass molecule alcohol in a reservoir, adds branched dodecylbenzene sulfonic acid sodium and polyoxyethylene polyoxypropylene glycol ethers in stirring, stirs 15min and obtains demulsifier product.
Emulsion splitter of the present invention, is applicable to produce condensate oil acid gas field and uses cationic inhibiter output creaming of emulsion, has that the water-mineralizing degree that breakdown of emulsion temperature is low, de-emulsification speed fast, be suitable for is low, profit matter is good after breakdown of emulsion a feature.
Embodiment
Embodiment 1
Emulsion splitter is prepared by 10% branched dodecylbenzene sulfonic acid salt, 8% polyoxyethylene polyoxypropylene glycol ethers, 30% butyl glycol ether, 52% deionized water.At 5 DEG C, the on-the-spot water sample 40mL of salinity 1.58g/L got by apparatus plug graduated cylinder, on-the-spot condensation oil sample 10mL, add cation quaternary ammonium salt inhibiter 0.1g(2000ppm), 0.05g emulsion splitter (1000ppm) is added after acutely shake makes breast 50 times up and down, leave standstill after shaking 10 times, recording 10min demulsification efficiency is 98%.
Embodiment 2
Emulsion splitter is prepared by 7% branched dodecylbenzene sulfonic acid salt, 15% polyoxyethylene polyoxypropylene glycol ethers, 10% Virahol, 68% deionized water.At 20 DEG C, the on-the-spot water sample 40mL of salinity 0.22g/L got by apparatus plug graduated cylinder, on-the-spot condensation oil sample 10mL, add cation quaternary ammonium salt inhibiter 0.1g(2000ppm), 0.05g emulsion splitter (1000ppm) is added after acutely shake makes breast 50 times up and down, leave standstill after shaking 10 times, recording 10min demulsification efficiency is 96%.
Embodiment 3
Emulsion splitter is prepared by 5% branched dodecylbenzene sulfonic acid salt, 20% polyoxyethylene polyoxypropylene glycol ethers, 20% ethanol, 55% deionized water.At 5 DEG C, the on-the-spot water sample 80mL of salinity 0.22g/L got by apparatus plug graduated cylinder, on-the-spot condensation oil sample 20mL, add cationic quaternary ammonium salt inhibiter 0.2g(2000ppm), 0.05g emulsion splitter (500ppm) is added after acutely shake makes breast 50 times up and down, leave standstill after shaking 10 times, recording 10min demulsification efficiency is 96%.
Embodiment 4
Emulsion splitter is prepared by 10% branched dodecylbenzene sulfonic acid salt, 20% polyoxyethylene polyoxypropylene glycol ethers, 20% butyl glycol ether, 50% deionized water.At 10 DEG C, the on-the-spot water sample 40mL of salinity 18.66g/L got by apparatus plug graduated cylinder, on-the-spot condensation oil sample 10mL, add cationic quaternary ammonium salt inhibiter 0.1g(2000ppm), the emulsion splitter aqueous solution (100ppm) of 0.25g2% is added after acutely shake makes breast 50 times up and down, leave standstill after shaking 10 times, recording 10min demulsification efficiency is 97%.
Embodiment 5
Emulsion splitter is prepared by 10% branched dodecylbenzene sulfonic acid salt, 20% polyoxyethylene polyoxypropylene glycol ethers, 20% butyl glycol ether, 50% deionized water.At 10 DEG C, the on-the-spot water sample 40mL of salinity 18.66g/L got by apparatus plug graduated cylinder, on-the-spot condensation oil sample 10mL, add cationic quaternary ammonium salt inhibiter 0.1g(2000ppm), the emulsion splitter aqueous solution (50ppm) of 0.125g2% is added after acutely shake makes breast 50 times up and down, leave standstill after shaking 10 times, recording 10min demulsification efficiency is 95%.
Embodiment 6
Emulsion splitter is prepared by 10% branched dodecylbenzene sulfonic acid salt, 20% polyoxyethylene polyoxypropylene glycol ethers, 20% butyl glycol ether, 50% deionized water.At 30 DEG C, the on-the-spot water sample 40mL of salinity 18.66g/L got by apparatus plug graduated cylinder, on-the-spot condensation oil sample 10mL, add cationic quaternary ammonium salt inhibiter 0.1g(2000ppm), the emulsion splitter aqueous solution (50ppm) of 0.125g2% is added after acutely shake makes breast 50 times up and down, leave standstill after shaking 10 times, recording 10min demulsification efficiency is 98%.
Claims (5)
1. a condensate oil demulsifier for emulsion, is characterized in that: emulsion splitter is made up of benzene sulfonate anionic tensio-active agent, polyethers nonionogenic tenside, low molecule alcohol and water; By quality 100%,
Described benzene sulfonate anionic tensio-active agent is 5 ~ 10%;
Described polyethers nonionogenic tenside is 5 ~ 20%;
Described low mass molecule alcohol is 10 ~ 30%;
Surplus is water.
2. emulsion splitter according to claim 1, is characterized in that: described benzene sulfonate anionic tensio-active agent is branched dodecylbenzene sulfonic acid sodium.
3. emulsion splitter according to claim 1, is characterized in that: described polyethers nonionogenic tenside is polyoxyethylene polyoxypropylene glycol ethers.
4. emulsion splitter according to claim 1, is characterized in that: described low mass molecule alcohol is the one in butyl glycol ether, ethanol, Virahol.
5. the application of an emulsion splitter according to claim 1, it is characterized in that: for producing condensate oil acid gas field, because using the output creaming of emulsion of cationic inhibiter, working concentration is 50ppm ~ 1000ppm by produce oil and Calculation of Water producing capacity, breakdown of emulsion temperature 0 DEG C ~ 40 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552699.8A CN104629793B (en) | 2013-11-08 | 2013-11-08 | A kind of condensate demulsifier for emulsion and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552699.8A CN104629793B (en) | 2013-11-08 | 2013-11-08 | A kind of condensate demulsifier for emulsion and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104629793A true CN104629793A (en) | 2015-05-20 |
| CN104629793B CN104629793B (en) | 2016-05-11 |
Family
ID=53209047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310552699.8A Active CN104629793B (en) | 2013-11-08 | 2013-11-08 | A kind of condensate demulsifier for emulsion and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104629793B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916121A (en) * | 2017-11-24 | 2018-04-17 | 威海翔泽新材料科技有限公司 | A kind of tar ammonia release agent |
| CN112174466A (en) * | 2020-10-27 | 2021-01-05 | 中石化石油工程技术服务有限公司 | Oil refining sludge reduction comprehensive treatment method |
| CN114457344A (en) * | 2021-09-26 | 2022-05-10 | 中海油(天津)油田化工有限公司 | Water-based cleaning agent for cleaning offshore oil well pipe column and preparation method thereof |
| CN115651620A (en) * | 2022-09-15 | 2023-01-31 | 中海油(天津)油田化工有限公司 | Non-polyether low-temperature demulsification and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475786A (en) * | 2008-01-03 | 2009-07-08 | 浙江理工大学 | Adhesive for burn-out printing flock fabric and preparation thereof |
| CN102329635A (en) * | 2011-08-03 | 2012-01-25 | 西安长庆化工集团有限公司 | Preparation method for polymer-containing crude oil demulsifier |
-
2013
- 2013-11-08 CN CN201310552699.8A patent/CN104629793B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475786A (en) * | 2008-01-03 | 2009-07-08 | 浙江理工大学 | Adhesive for burn-out printing flock fabric and preparation thereof |
| CN102329635A (en) * | 2011-08-03 | 2012-01-25 | 西安长庆化工集团有限公司 | Preparation method for polymer-containing crude oil demulsifier |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916121A (en) * | 2017-11-24 | 2018-04-17 | 威海翔泽新材料科技有限公司 | A kind of tar ammonia release agent |
| CN112174466A (en) * | 2020-10-27 | 2021-01-05 | 中石化石油工程技术服务有限公司 | Oil refining sludge reduction comprehensive treatment method |
| CN114457344A (en) * | 2021-09-26 | 2022-05-10 | 中海油(天津)油田化工有限公司 | Water-based cleaning agent for cleaning offshore oil well pipe column and preparation method thereof |
| CN115651620A (en) * | 2022-09-15 | 2023-01-31 | 中海油(天津)油田化工有限公司 | Non-polyether low-temperature demulsification and preparation method thereof |
| CN115651620B (en) * | 2022-09-15 | 2024-05-17 | 中海油(天津)油田化工有限公司 | Non-polyether low-temperature demulsification and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104629793B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1161630A (en) | Polyalkylene oxide with hydrotropic agent and amphipathic agent for breaking petroleum emulsion | |
| US4342657A (en) | Method for breaking petroleum emulsions and the like using thin film spreading agents comprising a polyether polyol | |
| CN102373077B (en) | Extra-heavy oil functional demulsifier as well as preparation and application thereof | |
| CN104479731A (en) | Superheavy oil crude oil reverse-phase demulsifier preparation method | |
| CN104629793A (en) | Condensate oil emulsion de-emulsifier and applications thereof | |
| CN104556594B (en) | A kind of low temperature greasy filth emulsion splitter and preparation method thereof | |
| MX2011002633A (en) | Anhydride demulsifier formulations for resolving emulsions of water and oil. | |
| US4326968A (en) | Method for breaking petroleum emulsions and the like using micellar solutions of thin film spreading agents comprising polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols | |
| CN105885925A (en) | Compound demulsifier for heavy inferior crude oil | |
| CN109705832B (en) | High-temperature anti-emulsion synergist and preparation and application thereof | |
| CN104449813B (en) | Offshore oilfield efficiently processes the emulsion splitter of high argillaceous composition crude oil oily water separation | |
| CN106281409A (en) | A kind of demulsifier for high impure crude oil | |
| US20140202927A1 (en) | Method of breaking oil-water micellar emulsions | |
| CN105112038A (en) | Thick oil emulsifying viscosity breaker for tracing steam, and preparation method and application method thereof | |
| Dong et al. | Influence of surfactants used in surfactant-polymer flooding on the stability of Gudong crude oil emulsion | |
| CN102765767B (en) | Delay coking coke cooling water demulsifier composition and preparation method and application thereof | |
| CN109679681A (en) | A kind of low temperature crude oil demulsifier | |
| CN101712885B (en) | Dehydration demulsifying agent for clay-bearing produced fluid | |
| CN112048335B (en) | Synchronous demulsification water purifier for petroleum produced liquid | |
| CN104447424A (en) | Ammonium sulfamate demulsifier, synthesis method thereof and application of ammonium sulfamate in cold rolling of waste emulsion | |
| CN105176511A (en) | Performance-favorable discharge aiding agent of acid fracturing fluid and preparation method of performance-favorable discharge aiding agent | |
| US4309306A (en) | Micellar solutions of thin film spreading agents comprising resinous polyalkylene oxide adducts | |
| CN107601619A (en) | A kind of preparation technology of water process demulsifier | |
| CA1152851A (en) | Micellar solutions of thin film spreading agents comprising a polyether polyol | |
| CN201437536U (en) | Oil solvent refining unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |