CN109679681A - A kind of low temperature crude oil demulsifier - Google Patents
A kind of low temperature crude oil demulsifier Download PDFInfo
- Publication number
- CN109679681A CN109679681A CN201710969067.XA CN201710969067A CN109679681A CN 109679681 A CN109679681 A CN 109679681A CN 201710969067 A CN201710969067 A CN 201710969067A CN 109679681 A CN109679681 A CN 109679681A
- Authority
- CN
- China
- Prior art keywords
- crude oil
- low temperature
- temperature crude
- oil demulsifier
- polyimide resin
- 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
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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
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1033—Oil well production fluids
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- 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)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention relates to a kind of low temperature crude oil demulsifiers, including following components: nonylphenol polyoxyethylene ether, phenolic aldehyde polyimide resin polyethers, polyether silicon, solvent.Nonylphenol polyoxyethylene ether can have good basic dehydrating effect to conventional crude Produced Liquid in crude oil demulsifier composition, phenolic aldehyde polyimide resin pfpe molecule amount is higher, it is lipophilic stronger, it is greater than the meltage in water phase in the meltage of oily phase, the poly- and ability with good wetting ability and flocculation, and polyether silicon may be implemented to be demulsified under 25-30 DEG C of low temperature condition, and additive amount reduces 50% or more than polyethet surfactant is used alone, rate of water loss is fast, demulsification is good, and overall cost reduces.
Description
Technical field
The present invention relates to a kind of low temperature crude oil demulsifiers to belong to specifically, being a kind of demulsifier of crude oil transmission
Oil field chemical technical field.
Background technique
With the increasingly increase of oil exploitation difficulty, the injection of a variety of oil recovery auxiliary agents, after being recovered the oil by intensification flooding, crude oil
Water content obviously increase, mostly in the form of water-oil emulsion exist.Containing a large amount of water, salt and other are miscellaneous in crude oil Produced Liquid
Matter brings great inconvenience to crude oil transmission, it is necessary to pass through dehydration, therefore urgent need exploitation demulsification ability is strong, broad spectrum activity
High crude oil demulsifier.
Crude oil demulsifier, which refers to, is separated into water and oil for water-oil emulsion by the physics chemical action of demulsifier, thus real
Existing crude oil dehydration, reaches the aqueous standard of crude oil exporting.It is that crude oil produces one of essential medicament, outer to guaranteeing
The quality of output oil reduces production cost and plays an important role.As oil temperature declines, year by year along with water filling, acidification, profile control
Deng the implementation for improving recovery ratio measure, the structural constituent of crude oil emulsion is more complicated, and crude oil dehydration is more difficult, while at present
One oil recovery major station may handle the crude oil of different blocks difference oil reservoir, therefore individually a kind of demulsifier cannot be fully met
These demands.Northeast, Xinjiang region extend the oil fields such as oil field, Changqing oilfields because of climate reasons itself, the practical crude oil of production station
The practical demulsification temperature of breaking device situation, Produced Liquid, the reasons such as processing cost often require that crude oil Produced Liquid is low at 25-30 DEG C
It is demulsified in warm situation, the commercially available crude oil demulsifier of domestic major part all cannot effectively be dehydrated demulsification in the case.
Summary of the invention
The present invention is intended to provide a kind of low temperature crude oil demulsifier, it has enough surface-actives, lubricity, flocculation and gathers
Knot ability has a broad-spectrum action for the crude oil Produced Liquid of different blocks difference oil reservoir, and can be in 25-30 DEG C of low temperature
In the case of be demulsified, can satisfy the field application in most oil fields, realize the benefit yield of inexpensive high repayment.
Low temperature crude oil demulsifier of the invention, it is characterised in that the demulsifier includes following components: polyoxyethylene nonyl phenyl second
Alkene ether, phenolic aldehyde polyimide resin polyethers, polyether silicon, solvent.
The nonylphenol polyoxyethylene ether is one or more of NP-2, NP-6, NP-10.
Mass fraction shared by the nonylphenol polyoxyethylene ether is 9~50%.
It is resin made of raw material through epoxy that the phenolic aldehyde polyimide resin polyethers, which is using polyethylene polyamine, nonyl phenol, formaldehyde,
Macromolecule oil soluble polyether after ethane, propylene oxide addition.
Mass fraction shared by the phenolic aldehyde polyimide resin polyethers is 9~50%.
The polyether silicon viscosity is 100-400cSt；HLB value is 5-12.
Mass fraction shared by the polyether silicon is 1~10%.
The solvent is one of clear water, methanol, ethyl alcohol, isopropanol or clear water and methanol, ethyl alcohol or isopropyl
The mixture of alcohol.
Mass fraction shared by the solvent is 1~60%.
Low temperature of the invention is with crude oil demulsifier biggest advantage: Nonyl pheno in crude oil demulsifier composition
Ether can have good basic dehydrating effect to conventional crude Produced Liquid, and phenolic aldehyde polyimide resin pfpe molecule amount is higher, lipophilic
It is relatively strong, it is greater than the meltage in water phase in the meltage of oily phase, there is good wetting ability and flocculation is gathered and ability, and silicon oxygen
Alkane polyethers may be implemented to be demulsified under 25-30 DEG C of low temperature condition, and additive amount is reduced than polyethet surfactant is used alone
50% or more, rate of water loss is fast, and demulsification is good, and overall cost reduces.
Specific embodiment
The following examples are further illustrations of the invention, the content of present invention is not limited.Therefore in the present invention
Any modification or synonym replacement substantially etc., it is within the scope of the present invention.
Example 1-6
Table 1 low temperature crude oil demulsification agent prescription
Example evaluation method
Dehydrating effect evaluation
Experimental method is referring to QSH10201418-2013 crude oil demulsifier general technical specifications.
Oil sample: Changqing oilfields crude oil Produced Liquid, moisture content: 30%, be demulsified temperature: 28 DEG C.
The test of 2 dehydration rate of table
Claims (9)
1. a kind of low temperature crude oil demulsifier, it is characterised in that the demulsifier includes following components: nonylphenol polyoxyethylene ether, phenol
Aldehyde polyimide resin polyethers, polyether silicon, solvent.
2. low temperature crude oil demulsifier according to claim 1, which is characterized in that the nonylphenol polyoxyethylene ether is
One or more of NP-2, NP-6, NP-10.
3. low temperature crude oil demulsifier according to claim 1, which is characterized in that the nonylphenol polyoxyethylene ether institute
The mass fraction accounted for is 9~50%.
4. low temperature crude oil demulsifier according to claim 1, which is characterized in that the phenolic aldehyde polyimide resin polyethers be with
Polyethylene polyamine, nonyl phenol, formaldehyde are the macromolecule oil-soluble after resin ethane via epoxyethane, propylene oxide addition made of raw material
Polyethers.
5. low temperature crude oil demulsifier according to claim 1, which is characterized in that shared by the phenolic aldehyde polyimide resin polyethers
Mass fraction be 9~50%.
6. low temperature crude oil demulsifier according to claim 1, which is characterized in that the polyether silicon viscosity is
100-400cSt；HLB value is 5-12.
7. low temperature crude oil demulsifier according to claim 1, which is characterized in that matter shared by the polyether silicon
Measuring score is 1~10%.
8. low temperature crude oil demulsifier according to claim 1, which is characterized in that the solvent is clear water, methanol, second
The mixture of one of alcohol, isopropanol or clear water and methanol, ethyl alcohol or isopropanol.
9. low temperature crude oil demulsifier according to claim 1, which is characterized in that mass fraction shared by the solvent
It is 1~60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710969067.XA CN109679681A (en) | 2017-10-18 | 2017-10-18 | A kind of low temperature crude oil demulsifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710969067.XA CN109679681A (en) | 2017-10-18 | 2017-10-18 | A kind of low temperature crude oil demulsifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109679681A true CN109679681A (en) | 2019-04-26 |
Family
ID=66183220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710969067.XA Pending CN109679681A (en) | 2017-10-18 | 2017-10-18 | A kind of low temperature crude oil demulsifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109679681A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331000A (en) * | 2019-07-05 | 2019-10-15 | 南京中微纳米功能材料研究院有限公司 | A kind of low temperature crude oil demulsifier and preparation method thereof |
| CN110437820A (en) * | 2019-08-15 | 2019-11-12 | 山东滨州昱诚化工科技有限公司 | A kind of oil field fracturing acidification preparation method and applications of non-emulsifier |
| CN115637170A (en) * | 2021-07-20 | 2023-01-24 | 中国石油天然气股份有限公司 | Compound type shale oil produced liquid demulsifier and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453496A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | De-emulsifier and demulsification method for hydrocarbon oil |
| CN104673359A (en) * | 2015-02-11 | 2015-06-03 | 胜利油田胜利化工有限责任公司 | Method for preparing novel phenolic amine resin demulsifier |
| CN106010634A (en) * | 2016-05-26 | 2016-10-12 | 句容宁武高新技术发展有限公司 | Synthetic method of efficient broad-spectrum modified polyether demulsifier |
| CN106700059A (en) * | 2016-12-16 | 2017-05-24 | 滨州市丰泰技术开发有限公司 | Preparation method of low-temperature demulsifier and low-temperature demulsifier prepared by means of method |
-
2017
- 2017-10-18 CN CN201710969067.XA patent/CN109679681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102453496A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | De-emulsifier and demulsification method for hydrocarbon oil |
| CN104673359A (en) * | 2015-02-11 | 2015-06-03 | 胜利油田胜利化工有限责任公司 | Method for preparing novel phenolic amine resin demulsifier |
| CN106010634A (en) * | 2016-05-26 | 2016-10-12 | 句容宁武高新技术发展有限公司 | Synthetic method of efficient broad-spectrum modified polyether demulsifier |
| CN106700059A (en) * | 2016-12-16 | 2017-05-24 | 滨州市丰泰技术开发有限公司 | Preparation method of low-temperature demulsifier and low-temperature demulsifier prepared by means of method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331000A (en) * | 2019-07-05 | 2019-10-15 | 南京中微纳米功能材料研究院有限公司 | A kind of low temperature crude oil demulsifier and preparation method thereof |
| CN110437820A (en) * | 2019-08-15 | 2019-11-12 | 山东滨州昱诚化工科技有限公司 | A kind of oil field fracturing acidification preparation method and applications of non-emulsifier |
| CN110437820B (en) * | 2019-08-15 | 2021-06-15 | 山东滨州昱诚化工科技有限公司 | Preparation method and application of emulsifier for oilfield fracturing acidification |
| CN115637170A (en) * | 2021-07-20 | 2023-01-24 | 中国石油天然气股份有限公司 | Compound type shale oil produced liquid demulsifier and preparation method thereof |
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Application publication date: 20190426 |