CN107519672A - A kind of water process demulsifier for oil field - Google Patents
A kind of water process demulsifier for oil field Download PDFInfo
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- CN107519672A CN107519672A CN201711006718.1A CN201711006718A CN107519672A CN 107519672 A CN107519672 A CN 107519672A CN 201711006718 A CN201711006718 A CN 201711006718A CN 107519672 A CN107519672 A CN 107519672A
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- demulsifier
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- water process
- oil field
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/04—Breaking emulsions
- B01D17/047—Breaking emulsions with separation aids
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Abstract
The invention discloses a kind of water process demulsifier for oil field, and after solving existing demulsifier processing, the dehydrating effect of emulsion is bad, the problem of outer output oil is aqueous, waste water displacement oil-containing is high be present.The present invention includes 5~13% mahogany acid, 17~19% '-diphenylmethane diisocyanate, 17~19% alkyl phenolic resin, 1~8% sodium metnylene bis-naphthalene sulfonate, 3~6% PPG, 2~4% 4 butane sultones, 6~8% ammonia spirit, remaining is borax.Present invention energy fast dewatering, desalination, to different crude oils strong adaptability, can use under conditions of low temperature, reach same treatment effect to same crude oil, typically fewer than conventional crude oil demulsifier dosage, cost is lower.
Description
Technical field
The present invention relates to demulsifier, and in particular to a kind of water process demulsifier for oil field.
Background technology
Suitable for different types of crude oil demulsification dehydration, portioned product is for the poly- drive of note, binary and ternary composite driving extraction
The processing requirement exploitation of liquid, there is the characteristics of dewatering speed is fast, water quality is clear, dosage is less, dehydration temperaturre is relatively low.In triumph
Oil field, the combination flooding of Zhongyuan Oil Field and Xinjiang Oilfield, the poly- flooding produced liquid of note processing in obtained good application.In addition, portion
Divide product to improve Crude Oil Transportation condition, also there is preferable effect to crude oil wax-proofing.
Produced Liquid emulsified state is complicated in the tertiary oil recovery of isolated island oil recovery factory, and multi-purpose station water-oil separating is difficult, tank intraformational bed is more,
Dehydrator electric field is unstable, outer output oil is aqueous, waste water displacement oil-containing is high.In particular with the rise containing poly- concentration, this contradiction
Outstanding day by day, sewage with oil is up to more than 5000mg/l, and heavier burden is brought to later stage water process.
HPAM contents have a great influence to water-oil separating in Produced Liquid, have aggravated the complexity of emulsion.In oil-water well operation
The chemical assistants such as the thinner used enter system, cause emulsification of crude oil to aggravate.
After the processing of existing demulsifier, the dehydrating effect of emulsion is bad, there is that outer output oil is aqueous, waste water displacement oil-containing is high
The problem of.
The content of the invention
The technical problems to be solved by the invention are：After existing demulsifier processing, the dehydrating effect of emulsion is bad, exists
The problem of outer output oil is aqueous, waste water displacement oil-containing is high, and it is an object of the present invention to provide it is a kind of solve the above problems be used for oil field
Water process demulsifier.
The present invention is achieved through the following technical solutions：
A kind of water process demulsifier for oil field, including：
5~13% mahogany acid,
17~19% '-diphenylmethane diisocyanate,
17~19% alkyl phenolic resin,
1~8% sodium metnylene bis-naphthalene sulfonate,
3~6% PPG,
2~4% 4- butane sultones,
6~8% ammonia spirit,
Remaining is borax.
When be demulsified contain BO segments in agent molecule lipophilic group when, demulsifier replace the original active material of oil-water interfaces after,
EO segments are inserted in aqueous phase, and part PO segments " multipoint mode " are adsorbed in oil-water interfaces, but due to BO strong-hydrophobicity, more PO
Oil phase is inserted into BO random mixing segment.When water droplet collision close to each other, relative to pure PO segments, PO and BO nothing
Rule mixing segment carry many methyl, and intermolecular interaction is stronger, and the different agent molecules that are demulsified are more easy to wind, further water droplet away from
From so as to beneficial to demulsification.
The present invention possesses good resistance to emulsification, while has excellent purifying water effect concurrently, at tertiary oil recovery produced liquid
Reason shows well adapting to property., will not be to crude oil meanwhile the present invention has good compatible compound property with polyethers demulsifier
Demulsification impacts.Largely alleviate the negative effect to caused by breaking emulsion and dewatering that cation clarificant is brought.
Meanwhile the borax after use can reuse, cost is cheaper, and effect is more notable.
Further, the concentration of the ammonia spirit is 1~5%.
Further, the concentration of the ammonia spirit is 3%.
Preferably, the present invention includes：
11% mahogany acid,
18% '-diphenylmethane diisocyanate,
18% alkyl phenolic resin,
6% sodium metnylene bis-naphthalene sulfonate,
5% PPG,
4% 4- butane sultones,
7% ammonia spirit,
Remaining is borax.
The present invention compared with prior art, has the following advantages and advantages：
1st, can fast dewatering, desalination, also can viscosity reduction and wax control, anticorrosion play the function of one multiple-effect.
2nd, to different crude oils strong adaptability, can be used under conditions of low temperature.
3rd, the cost used is low, compared with the traditional crude oil demulsifier in the current country, reaches same treatment to same crude oil
Effect is typically fewer than conventional crude oil demulsifier dosage.
4th, not only can quick desalination, dehydration, viscosity reduction, anti-cured, can also play etch-proof purpose, make crude oil in the mistake of processing
Produced corrosive medium has certain inhibitory action in journey, and burden is alleviated to secondary anti-corrosion.So as to can also reach protection equipment, subtract
The purpose of slow corrosion.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, the present invention is made
Further to describe in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment 1
A kind of water process demulsifier for oil field, it is made up of the component of following parts by weight：
11% mahogany acid, 18% '-diphenylmethane diisocyanate, 18% alkyl phenolic resin, 6% methylene
Base sodium dinaphthalenesulfonate, 5% PPG, 4% 4- butane sultones, 7% ammonia spirit, remaining is borax.
By 11% mahogany acid, 18% '-diphenylmethane diisocyanate, 18% alkyl phenolic resin, 6% Asia
Methyl sodium dinaphthalenesulfonate, 5% PPG, 4% 4- butane sultones are added in 7% ammonia spirit, are mixed
Close uniformly, be then then added in borax, be well mixed.
In use, the finished product of the present invention is added in waste water displacement, the rise of waste water displacement oil-containing, up to
More than 1000mg/L, under the conditions of 20~30mg/L of adding consistency, sewage with oil is down to 400mg/L or so again after processing.
It has detected simultaneously in complicated profit system, the dehydration level and water purification ability of the product of the present embodiment, detection knot
Fruit is as shown in table 1.
Table 1
Pass through the testing result of above table：Dehydration level and water purification ability improve a lot, and emulsification tendency is less than
4%, while the present invention can be applicable in different complicated profit systems, it is applied widely.
Also detected at low temperature under the conditions of (10 DEG C) simultaneously, it still has stronger demulsification ability, thus enters one
Step proves that the present invention can be suitably used for using under conditions of low temperature.
Embodiment 2
The present embodiment and the difference of embodiment 1 are that the proportioning respectively formed in the present embodiment is different, and specific setting is as follows：
8% mahogany acid, 17% '-diphenylmethane diisocyanate, 19% alkyl phenolic resin, 6% methylene
Sodium dinaphthalenesulfonate, 6% PPG, 4% 4- butane sultones, 6% ammonia spirit, remaining is borax.
Embodiment 3
The present embodiment and the difference of embodiment 1 are that the proportioning respectively formed in the present embodiment is different, and specific setting is as follows：
5% mahogany acid, 19% '-diphenylmethane diisocyanate, 17% alkyl phenolic resin, 2% methylene
Sodium dinaphthalenesulfonate, 3% PPG, 2% 4- butane sultones, 7% ammonia spirit, remaining is borax.
Embodiment 4
The present embodiment and the difference of embodiment 1 are that the proportioning respectively formed in the present embodiment is different, and specific setting is as follows：
15% mahogany acid, 15% '-diphenylmethane diisocyanate, 10% alkyl phenolic resin, 12% methylene
Base sodium dinaphthalenesulfonate, 2% PPG, 6% 4- butane sultones, 10% ammonia spirit, remaining is borax.
Embodiment 5
The present embodiment and the difference of embodiment 1 are that the proportioning respectively formed in the present embodiment is different, and specific setting is as follows：
3% mahogany acid, 25% '-diphenylmethane diisocyanate, 25% alkyl phenolic resin, 10% methylene
Base sodium dinaphthalenesulfonate, 10% PPG, 8% 4- butane sultones, 10% ammonia spirit, remaining is borax.
For lab simulation boundary layer, finished product made of the various embodiments described above is detected, sewage after oil removing is removed in detection
Oil content, testing result is as shown in table 2.
Table 2
Contrasted by the test data of above-mentioned table 2：The present invention has preferable water separation capability, while has stronger
Suppress boundary layer ability, for lab simulation boundary layer clearance completely up to more than 85%.
Also, the borax recoverable in the present invention, it is greatly cost-effective.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (4)
- A kind of 1. water process demulsifier for oil field, it is characterised in that by weight percentage, including：5~13% mahogany acid,17~19% '-diphenylmethane diisocyanate,17~19% alkyl phenolic resin,1~8% sodium metnylene bis-naphthalene sulfonate,3~6% PPG,2~4% 4- butane sultones,6~8% ammonia spirit,Remaining is borax.
- A kind of 2. water process demulsifier for oil field according to claim 1, it is characterised in that the ammonia spirit Concentration be 1~5%.
- A kind of 3. water process demulsifier for oil field according to claim 2, it is characterised in that the ammonia spirit Concentration be 3%.
- A kind of 4. water process demulsifier for oil field according to claim any one of 1-3, it is characterised in that bag Include：11% mahogany acid,18% '-diphenylmethane diisocyanate,18% alkyl phenolic resin,6% sodium metnylene bis-naphthalene sulfonate,5% PPG,4% 4- butane sultones,7% ammonia spirit,Remaining is borax.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711006718.1A CN107519672A (en) | 2017-10-25 | 2017-10-25 | A kind of water process demulsifier for oil field |
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| CN201711006718.1A CN107519672A (en) | 2017-10-25 | 2017-10-25 | A kind of water process demulsifier for oil field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793497A (en) * | 2018-06-27 | 2018-11-13 | 泰山玻璃纤维邹城有限公司 | A kind of method that chemical method reduces glass fiber infiltration agent waste liquid COD value |
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| US4141854A (en) * | 1977-05-31 | 1979-02-27 | Nalco Chemical Company | Emulsion breaking |
| CN1037094A (en) * | 1988-11-07 | 1989-11-15 | 西安石油学院 | Efficient thick oil emulsion-breaking agent |
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| EP1658356A1 (en) * | 2003-06-04 | 2006-05-24 | Clariant Produkte (Deutschland) GmbH | Alkoxylated, cross-linked polyglycerols and use thereof as biodegradable demulsifier |
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2017
- 2017-10-25 CN CN201711006718.1A patent/CN107519672A/en active Pending
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| CN1037094A (en) * | 1988-11-07 | 1989-11-15 | 西安石油学院 | Efficient thick oil emulsion-breaking agent |
| EP1658356A1 (en) * | 2003-06-04 | 2006-05-24 | Clariant Produkte (Deutschland) GmbH | Alkoxylated, cross-linked polyglycerols and use thereof as biodegradable demulsifier |
| CN1570034A (en) * | 2003-07-11 | 2005-01-26 | 中国石油天然气股份有限公司 | Cross-linking type non-ionic reverse demulsifier and preparation method thereof |
| CN1810933A (en) * | 2006-03-13 | 2006-08-02 | 辽宁奥克化学集团有限公司 | Thick oil demulsifier and its prepn |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793497A (en) * | 2018-06-27 | 2018-11-13 | 泰山玻璃纤维邹城有限公司 | A kind of method that chemical method reduces glass fiber infiltration agent waste liquid COD value |
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Application publication date: 20171229 |