CN106495270B - A kind of degreaser for polymer flooding water processing - Google Patents
A kind of degreaser for polymer flooding water processing Download PDFInfo
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- CN106495270B CN106495270B CN201610978357.6A CN201610978357A CN106495270B CN 106495270 B CN106495270 B CN 106495270B CN 201610978357 A CN201610978357 A CN 201610978357A CN 106495270 B CN106495270 B CN 106495270B
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- degreaser
- water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to disposing polluted water in oil technical fields, more particularly to a kind of degreaser for polymer flooding water processing, the degreaser is compounded by Gemini surface active, diatomite, sldium lauryl sulfate and water, wherein, Gemini surface active is a kind of symmetrical molecule with Long carbon chain alkyl, double benzene sulfonate polar groups.Degreaser of the invention has that preparation process is simple, at low cost, salt resistant character is good, and resistance to salinity reaches 250000mg/L, and the feature that deoiling effect is good, and the oil removal rate of polymer flooding water reaches 97% or more, and more existing medicament improves 50% or more.Therefore, present invention is generally applicable in the oil removing process of polymer flooding water.
Description
Technical field
The present invention relates to a kind of degreasers for disposing polluted water in oil, and in particular to one kind is used for polymer flooding water
The degreaser of processing.
Background technique
Polymer displacement of reservoir oil tech has been achieved for preferable oil increasing effect at present.Contain polyacrylamide in polymer displacement of reservoir oil
(PAM), since PAM and emulsifier molecules have similitude, so that there are molecules in system to concentrate on oil-water interfaces by PAM, with
Emulsification molecule is formed together the composite membrane of larger intensity and favorable elasticity.Based on These characteristics, polymer displacement of reservoir oil output sewage
It is higher containing oil index.
With the expansion of polymer displacement of reservoir oil application scale, accompanying problem is that polymer-flooding sewage is handled.Polymer displacement of reservoir oil
Sewage in not only oil content it is high, but also contain a large amount of polymer.The presence of polymer increases the viscosity of water phase, makes water phase
Oily ability enhancing is taken, the difficulty of water-oil separating is increased；Microcosmic test result shows that polymer increases oil-water interfaces intensity,
Interface charge enhancing, causes small oil droplet in recovered water to be stable in the presence of in water body, increases processing difficulty；In addition, polymer
In the presence of the using effect for also disturbing flocculant, flocculation is made to be deteriorated, considerably increases the dosage of medicament；Due to polymer
The adsorptivity of suction-operated, polymer is stronger, and the quantity of sand and mud of carrying increases, and substantially reduces backwashing period.
At present frequently with measure mainly have: 1. physical means polymer-contained sewage.Such technology mainly includes electric dehydration
Technology, " two-stage sedimentation, twice pressure filtration " processing technique and jet air float technology etc.；2. chemical method processing contains
Poly- sewage.Such technology carries out demulsification processing first, and then the medicaments such as further preferably suitable degreaser carry out purification process.
With the deep progress of polymer flooding, the treating capacity of polymer-bearing waste-water is increasing, and ingredient also becomes increasingly complex, this is not
Only increase the difficulty of sewage treatment, also will cause the accelerated ageing of processing equipment, it can be seen that, the processing of polymer-bearing waste-water is oil
The guarantee of field efficient health stable yields.But since ground implementation operation mode is complicated and changeable, sewage composition is caused to have apparent
Regional and timeliness.
" synthesis and characterization of serial sulfonic acid sodium form Gemini surface active " text of Zhang Guanghua proposes that a kind of surface is living
Property agent, compared with neopelex, surfactant surface-active with higher, according to laboratory test research table
Bright, the surfactant containing disulfonate group has the function of stronger interface modification, can be with the polar object of oil droplets
Matter occurs chemisorption and forms bridging, coalescent deoiling, meanwhile, which belongs to reverse demulsifier, Ke Yiyou
Effect improves the demulsification efficiency of WO emulsion, the oil removal treatment suitable for polymer flooding water.
Summary of the invention
The present invention provides a kind of degreaser for polymer flooding water processing, this hair in view of the deficiencies of the prior art
Bright degreaser has preparation process simple, at low cost, and the feature that salt resistant character is strong and deoiling effect is good, resistance to salinity are reachable
250000mg/L, the oil removal rate of polymer flooding water reach 97% or more, and more existing medicament improves 50% or more.
The invention discloses a kind of degreasers for polymer flooding water processing, and the degreaser is by Gemini table
Face activating agent, diatomite, sldium lauryl sulfate and water compound.The Gemini surface active is a kind of with long carbon
The symmetrical molecule of alkyl group, double benzene sulfonate polar groups, molecular formula are as follows:
The component that the degreaser respectively forms is as follows:
Further, the component that the degreaser respectively forms is as follows:
It is another object of the present invention to provide a kind of preparation sides of degreaser for polymer flooding water processing
Method, the preparation method of the degreaser specifically includes the following steps:
(1) half of the water of aforementioned proportion is added in beaker, adjusts the temperature to 40~50 DEG C, is slowly added to aforementioned proportion
Diatomite, stir evenly, stirring rate be 200~300rpm, mixing time be 10~30min；
(2) sldium lauryl sulfate of aforementioned proportion is added in above-mentioned beaker, temperature is adjusted to 50~60 DEG C, and stirring is equal
Even, stirring rate is 300~500rpm, and mixing time is 20~40min；
(3) temperature is adjusted to 60~70 DEG C, and the Gemini surface active of aforementioned proportion, stirring are added into above-mentioned beaker
Uniformly, stirring rate is 500~800rpm, and mixing time is 30~50min；
(4) temperature is down to room temperature, and the water of remaining half is poured slowly into, is stirred evenly, stirring rate be 200~
300rpm, mixing time is 20~30min, up to degreaser of the invention after mixing time.
A kind of degreaser for polymer flooding water processing, as follows using technical process:
According to oil-containing situation in oilfield polymer flooding output sewage, degreaser of the invention is added into sewage, realizes broken
Cream and water-oil separating are further processed after recycling petroleum substance for subsequent technique.The specific additional amount of degreaser is as follows:
(1) when oil-containing α >=500mg/L, degreaser, which is added, makes 50~150mg/L of mass concentration of degreaser in sewage；
When (2) 500 > oil-containing α >=300mg/L, be added degreaser make the mass concentration 30 of degreaser in sewage~
50mg/L；
When (3) 300 > oil-containing α >=100mg/L, be added degreaser make the mass concentration 10 of degreaser in sewage~
30mg/L；
(4) when oil-containing α < 100mg/L, degreaser, which is added, makes 0.5~10mg/L of mass concentration of degreaser in sewage.
Provided by the present invention for the degreaser of polymer flooding water processing, belong to anionic surfactant, it should
Surfactant has good rheological characteristic in water phase, and its CMC point is lower, so that its dosage is extremely low, to reduce into
This, this double sulfonate groups of Gemini surface active have stronger interfacial activity, are easy to the polymer on greasy dirt point
Son strips down, to play the role of demulsification；The diatomite being used in compounding therewith has extremely strong adsorption capacity, Ke Yiqi
To the effect of bridge formation, the active site of Gemini surface active is increased, coagulated particles are increased；Present invention compounding has laruyl alcohol
Sodium sulphate, the surfactant have excellent compatibility and efficient decontamination emulsification, can play emulsification greasy dirt, reach
Flocculated purpose.
The present invention is had the following advantages and beneficial effects: compared with prior art
(1) raw material sources of degreaser of the invention are extensive, and synthesis technology is simple, and product is easily obtained and transports preservation；
(2) degreaser of the invention has excellent demulsification and flocculation dual function, reaction speed fast；
(3) degreaser of the invention is Inorganic whisker formula, the advantage with low-cost high-efficiency；
(4) degreaser of the invention has the characteristics that salt resistant character is strong and oil removal efficiency is high, and resistance to salinity is reachable
250000mg/L, for the oil removal rate of polymer flooding water up to 97% or more, more existing medicament improves 50% or more, meets poly-
Close the pretreated requirement of oil removing of object drive water exit.
Specific embodiment
The present invention is described in further detail below with reference to specific embodiment, and referring to data.It should be understood that these embodiments
It is of the invention solely for the purpose of illustration, rather than limit the scope of the invention in any way.
Embodiment 1: degreaser AE1And preparation method thereof
(1) degreaser AE1Composition and its component it is as follows:
According to existing document, the Gemini surface active the preparation method is as follows:
(2) degreaser AE1The preparation method is as follows:
1. 7.5 parts of water is added in beaker, 46 DEG C are adjusted the temperature to, is slowly added to 0.5 part of diatomite, stirring is equal
It is even, stirring rate 200rpm, mixing time 10min；
2. 1.5 parts of sldium lauryl sulfate is added in above-mentioned beaker, temperature is adjusted to 50 DEG C, stirs evenly, stirring speed
Rate is 420rpm, mixing time 20min；
3. temperature is adjusted to 65 DEG C, 10 parts of Gemini surface active is added into above-mentioned beaker, stirs evenly, stirs
Rate is 500rpm, mixing time 38min；
4. temperature is down to room temperature, it is poured slowly into 7.5 parts of water, is stirred evenly, stirring rate 200rpm, mixing time is
20min, up to degreaser AE of the invention after mixing time1。
Embodiment 2: degreaser AE2And preparation method thereof
(1) degreaser AE2Composition and its component it is as follows:
According to existing document, the Gemini surface active the preparation method is as follows:
(2) degreaser AE2The preparation method is as follows:
1. 12.5 parts of water is added in beaker, 43 DEG C are adjusted the temperature to, is slowly added to 0.8 part of diatomite, stirring is equal
It is even, stirring rate 250rpm, mixing time 15min；
2. 2.0 parts of sldium lauryl sulfate is added in above-mentioned beaker, temperature is adjusted to 58 DEG C, stirs evenly, stirring speed
Rate is 380rpm, mixing time 25min；
3. temperature is adjusted to 62 DEG C, 10 parts of Gemini surface active is added into above-mentioned beaker, stirs evenly, stirs
Rate is 600rpm, mixing time 46min；
4. temperature is down to room temperature, it is poured slowly into 12.5 parts of water, is stirred evenly, stirring rate 240rpm, mixing time
For 23min, up to degreaser AE of the invention after mixing time2。
Embodiment 3: degreaser AE3And preparation method thereof
(1) degreaser AE3Composition and its component it is as follows:
According to existing document, the Gemini surface active the preparation method is as follows:
(2) degreaser AE3The preparation method is as follows:
1. 10 parts of water are added in beaker, 40 DEG C are adjusted the temperature to, 1.1 parts of diatomite is slowly added to, stirs evenly,
Stirring rate is 270rpm, mixing time 25min；
2. 2.5 parts of sldium lauryl sulfate is added in above-mentioned beaker, temperature is adjusted to 53 DEG C, stirs evenly, stirring speed
Rate is 300rpm, mixing time 32min；
3. temperature is adjusted to 60 DEG C, 10 parts of Gemini surface active is added into above-mentioned beaker, stirs evenly, stirs
Rate is 700rpm, mixing time 30min；
4. temperature is down to room temperature, it is poured slowly into 10 parts of water, is stirred evenly, stirring rate 280rpm, mixing time is
27min, up to degreaser AE of the invention after mixing time3。
Embodiment 4: degreaser AE4And preparation method thereof
(1) degreaser AE4Composition and its component it is as follows:
According to existing document, the Gemini surface active the preparation method is as follows:
(2) degreaser AE4The preparation method is as follows:
1. 15 parts of water are added in beaker, 50 DEG C are adjusted the temperature to, 1.5 parts of diatomite is slowly added to, stirs evenly,
Stirring rate is 300rpm, mixing time 30min；
2. 3.5 parts of sldium lauryl sulfate is added in above-mentioned beaker, temperature is adjusted to 60 DEG C, stirs evenly, stirring speed
Rate is 500rpm, mixing time 40min；
3. temperature is adjusted to 70 DEG C, 10 parts of Gemini surface active is added into above-mentioned beaker, stirs evenly, stirs
Rate is 800rpm, mixing time 50min；
4. temperature is down to room temperature, it is poured slowly into 15 parts of water, is stirred evenly, stirring rate 300rpm, mixing time is
30min, up to degreaser AE of the invention after mixing time4。
5 degreaser AE of embodiment1Field application
Multi-purpose station P5Water be heavy crude heat extraction sewage, test process scale be 80m3/ d, water oil content 632mg/L, it is dirty
Water salinity 182350mg/L, utilizes degreaser AE of the invention by 42 DEG C of sewage temperature1To multi-purpose station P5Sewage carry out oil removing
Processing, degreaser AE1Dosage be 4.8kg/d, the concentration for adding degreaser in sewage after degreaser is 60mg/L, after processing
Oil content is reduced to 14.5mg/L, and oil content reduces by 97.7%, reaches technique requirement.
6 degreaser AE of embodiment2Field application
Multi-purpose station P6Water be heavy crude heat extraction sewage, test process scale be 60m3/ d, water oil content 785mg/L, it is dirty
Water salinity 232682mg/L, utilizes degreaser AE of the invention by 40 DEG C of sewage temperature2To multi-purpose station P6Sewage carry out oil removing
Processing, degreaser AE2Dosage be 4.32kg/d, the concentration for adding degreaser in sewage after degreaser is 72mg/L, processing
Oil content is reduced to 19.6mg/L afterwards, and oil content reduces by 97.5%, reaches technique requirement.
7 degreaser AE of embodiment3Field application
Multi-purpose station P8Water be heavy crude heat extraction sewage, test process scale be 100m3/ d, water oil content 420mg/L,
Sewage salinity 180236mg/L, utilizes degreaser AE of the invention by 38 DEG C of sewage temperature3To multi-purpose station P8Sewage removed
Oil processing, degreaser AE3Dosage be 4.0kg/d, the concentration for adding degreaser in sewage after degreaser is 40mg/L, processing
Oil content is reduced to 5.8mg/L afterwards, and oil content reduces by 98.6%, reaches technique requirement.
8 degreaser AE of embodiment4Field application
Multi-purpose station P12Water be heavy crude heat extraction sewage, test process scale be 70m3/ d, water oil content 986mg/L,
Sewage salinity 178520mg/L, utilizes degreaser AE of the invention by 43 DEG C of sewage temperature4To multi-purpose station P12Sewage removed
Oil processing, degreaser AE4Dosage be 7.0kg/d, the concentration for adding degreaser in sewage after degreaser is 100mg/L, place
Oil content is reduced to 26.6mg/L after reason, and oil content reduces by 97.3%, reaches technique requirement.
Claims (3)
1. a kind of degreaser for polymer flooding water processing, which is characterized in that the degreaser is by the surface Gemini
Activating agent, diatomite, sldium lauryl sulfate and water compound, wherein Gemini surface active is a kind of with Long carbon chain
The symmetrical molecule of alkyl, double benzene sulfonate polar groups, molecular formula are as follows:
2. the preparation method of the degreaser according to claim 1 for polymer flooding water processing, which is characterized in that
Specific step is as follows for the preparation method:
1. the half of water is added in beaker, 40~50 DEG C are adjusted the temperature to, diatomite is slowly added to, is stirred evenly, stirring speed
Rate is 200~300rpm, and mixing time is 10~30min；
2. sldium lauryl sulfate is added in above-mentioned beaker, temperature is adjusted to 50~60 DEG C, stirs evenly, stirring rate 300
~500rpm, mixing time are 20~40min；
3. temperature is adjusted to 60~70 DEG C, Gemini surface active is added into above-mentioned beaker, stirs evenly, stirring rate is
500~800rpm, mixing time are 30~50min；
4. temperature is down to room temperature, the water of remaining half is poured slowly into, is stirred evenly, stirring rate is 200~300rpm, stirring
Time is 20~30min, up to degreaser after mixing time；
The component that the degreaser respectively forms is as follows:
3. the preparation method of the degreaser according to claim 2 for polymer flooding water processing, which is characterized in that
The component that the degreaser respectively forms is as follows:
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| CN201610978357.6A CN106495270B (en) | 2016-11-04 | 2016-11-04 | A kind of degreaser for polymer flooding water processing |
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| CN201610978357.6A CN106495270B (en) | 2016-11-04 | 2016-11-04 | A kind of degreaser for polymer flooding water processing |
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| CN106495270B true CN106495270B (en) | 2019-06-14 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665289B (en) * | 2009-09-27 | 2011-02-09 | 山东大学 | Treatment method of polymer flooding water of oil field |
| CN101798133A (en) * | 2010-02-10 | 2010-08-11 | 湖北大学 | Composite algicide consisting of gemini surfactant and clay, and algae removal method |
| CN102689941B (en) * | 2012-05-29 | 2013-12-25 | 中国海洋石油总公司 | Method for treating sewage in polymer flooding oilfield |
| CN103752274B (en) * | 2013-12-12 | 2015-12-30 | 西北农林科技大学 | A kind of both sexes-Gemini type cation compound adsorbent and preparation method thereof |
| CN104774603A (en) * | 2015-04-28 | 2015-07-15 | 中国科学院理化技术研究所 | Stable foam system based on nanoparticles and Gemini surfactant and preparation method thereof |
| CN105347580B (en) * | 2015-11-10 | 2018-06-01 | 中国石油天然气股份有限公司 | Method suitable for polymer flooding produced water treatment standard-reaching discharge |
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