CN101328429A - Demulsifier for dehydrating heavy viscous oil with high sulfur content - Google Patents
Demulsifier for dehydrating heavy viscous oil with high sulfur content Download PDFInfo
- Publication number
- CN101328429A CN101328429A CNA2008101171064A CN200810117106A CN101328429A CN 101328429 A CN101328429 A CN 101328429A CN A2008101171064 A CNA2008101171064 A CN A2008101171064A CN 200810117106 A CN200810117106 A CN 200810117106A CN 101328429 A CN101328429 A CN 101328429A
- Authority
- CN
- China
- Prior art keywords
- dehydration
- ether
- polyoxyethylene polyoxypropylene
- polyoxyethylene
- oil
- 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
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 title abstract description 6
- 239000011593 sulfur Substances 0.000 title abstract description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 54
- -1 polyoxypropylene Polymers 0.000 claims abstract description 35
- 230000018044 dehydration Effects 0.000 claims abstract description 33
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 33
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004094 surface-active agent Substances 0.000 claims abstract description 12
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 11
- 239000004698 Polyethylene Substances 0.000 claims abstract description 11
- 229920000768 polyamine Polymers 0.000 claims abstract description 11
- 229920000573 polyethylene Polymers 0.000 claims abstract description 11
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 11
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims abstract description 11
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 10
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 10
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005864 Sulphur Substances 0.000 claims description 29
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 11
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 10
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 210000003298 dental enamel Anatomy 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010779 crude oil Substances 0.000 abstract description 16
- 239000003921 oil Substances 0.000 abstract description 12
- 239000010865 sewage Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000000295 fuel oil Substances 0.000 abstract 2
- 229920001451 polypropylene glycol Polymers 0.000 abstract 2
- 150000001412 amines Chemical class 0.000 abstract 1
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract 1
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 description 16
- 239000000126 substance Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000013543 active substance Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Polyethers (AREA)
- Silicon Polymers (AREA)
Abstract
The demulsifier for dehydrating heavy oil with high sulfur content is used for dehydrating crude oil in oil field, and crude oil with sulfur content greater than 4% is dehydrated. Is characterized in that: the weight ratio of each component is as follows: a. tetraethylenepentamine polyoxyethylene polyoxypropylene ether: 2.5-8.8%; b. polyoxypropylene polyoxyethylene polyethylene polyamine ether polysiloxane copolymer: 13-21%; c. rosin amine polyoxypropylene polyoxyethylene ether: 5.5-8%; FC-N01 fluorocarbon surfactant: 0.05-0.15%; e. methanol: 20-25%; f. the balance of water. The effect is as follows: the method can be used in the dehydration of heavy oil with high sulfur content, the water content in the dehydrated crude oil is less than 0.1 percent, and the oil content in the sewage is less than 100 mg/l. The method meets the requirements of crude oil dehydration standard, improves the dehydration efficiency and reduces the dosage of the demulsifier.
Description
Technical field
The invention belongs to petroleum industry chemical technical field, relate in particular to prescription of a kind of demulsifying agent for dehydration of high-sulphur heavy crude and preparation method thereof.Be applicable to that the crude oil sulphur content greater than 4% dehydrating of crude oil, is 50 ℃ in dehydration temperaturre, when dosage was 80mg/l, moisture less than 0.5% in the dewatered oil, oil-containing was less than 100mg/l in the sewage.
Background technology
At present, the oil field mining liquid that has belongs to high-sulphur heavy crude.Such as: the oil field, The Zhaozhou Bridge of North China Oilfield belongs to high-sulphur heavy crude.Relative density 0.9612g/cm in the time of 20 ℃
3～0.992g/cm
350 ℃ of viscosity 708.0mPa.s～13100.4mPa.s; Sulfur-bearing 4.28%～8.27%, colloid, drop matter content 32.7%～60.77%.Because the oil property of high-sulphur heavy crude is poor, sulfur-bearing composition height has increased the difficulty of dehydrating of crude oil, and mainly show the following aspects: (1), profit density difference are little, and the chemical demulsification dewatering speed is slow; (2), produce more stable thick emulsion layer, form " epithelium " of difficult breakdown of emulsion, cause the electrical dehydrator electric current to raise, burn out silicon chip, insurance etc., make the electrical dehydrator can't works better at oil, water termination place; (3), take off back sewage with oil height, increased the sewage disposal difficulty; (4), along with the rising of water content in the crude oil extraction liquid, adopt the existing process method dehydration, the emulsion splitter consumption of use is multiplied.Existing emulsion splitter can not satisfy the requirement of dehydration of high-sulphur heavy crude.
Summary of the invention
The objective of the invention is: a kind of demulsifying agent for dehydration of high-sulphur heavy crude is provided, solves the problem of dehydration of high-sulphur heavy crude difficulty, promptly solve sulphur content greater than 4% heavy crude dehydration problem.
The present invention is for solving a dehydration of high-sulphur heavy crude difficult problem, and the technical scheme of the demulsifying agent for dehydration of high-sulphur heavy crude that is provided is:
One, the raw material of demulsifying agent for dehydration of high-sulphur heavy crude and prescription:
Raw material comprises:
1, tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether (industrial goods), code name: emulsion splitter AE121; (Huang Hongzhou edits Chinese tensio-active agent overview one book, the 473rd page of Chemical Industry Press);
Purposes: the dehydration of high viscous crude oil and sewage-treating agent
Production unit: general petrochemical works, Changzhou
2, polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer (industrial goods); Code name: emulsion splitter SAE.(Huang Hongzhou edits Chinese tensio-active agent overview one book, the 474th page of Chemical Industry Press);
Purposes: crude oil emulsion splitter.
Production unit: Changzhou petroleum chemical plant, Jingjiang petroleum chemical plant, shore group company
3, rosin Amine D polyoxyethylene polyoxypropylene ether (industrial goods); Code name: emulsion splitter 101.(Huang Hongzhou edits Chinese tensio-active agent overview one book, the 475th page of Chemical Industry Press);
Purposes: low temperature, quick, high-efficient demulsifier
Production unit: general petrochemical works, Xi'an
4, FC-N01 fluorocarbon surfactant, (Shanghai Zhongke Hechen Co., Ltd.) its molecular formula is:
C
3F
7O(C
3F
6)
nC
2F
4CO
2C
2H
4N(C
2H
4OH)
2
Wherein: n=2-4
Quality index: little yellow or amber thick liquid, surface tension is less than 16.8 milli Newton/meter.
Characteristic: be a kind of novel cation fluorocarbon surfactant, have non-ionic character simultaneously, can obviously improve wetting, diffusion, emulsification, flow leveling.
5, methyl alcohol
6, water.
Demulsifying agent for dehydration of high-sulphur heavy crude each component weight ratio is:
1, tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether (industrial goods): 2.5～8.8%;
2, polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer (industrial goods): 13～21%;
3, rosin Amine D polyoxyethylene polyoxypropylene ether (industrial goods): 5.5～8%;
4, the FC-N01 fluorocarbon surfactant (is called for short: FC-5) (industrial goods): 0.05～0.15%
5, methyl alcohol: 20～25%
6, all the other are water, each component weight and be 100%.
Demulsifying agent for dehydration of high-sulphur heavy crude each component weight ratio preferably is:
1, tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether (industrial goods): 4.5～8.8%;
2, polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer (industrial goods): 15～19%;
3, rosin Amine D polyoxyethylene polyoxypropylene ether (industrial goods): 6.5～7.5%;
4, FC-N01 fluorocarbon surfactant (industrial goods): 0.08～0.15%;
5, methyl alcohol: 20～25%;
6, all the other are water, each component weight and be 100%.
Two, the production method of demulsifying agent for dehydration of high-sulphur heavy crude
Major equipment:
Enamel reaction still with 2000L of stirring, heating, cooling and vacuum system.
Production method:
At first, tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether, polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer, rosin Amine D polyoxyethylene polyoxypropylene ether, four kinds of raw materials of FC-N01 fluorocarbon surfactant are added enamel reaction still in proportion.Slowly be warmed up to 50～65 ℃.
Secondly, under constantly stirring, add the first alcohol and water in proportion, continue to stir after 30 minutes, stop heating.
At last, stir, be cooled to normal temperature while cooling off.Obtain demulsifying agent for dehydration of high-sulphur heavy crude.
The invention has the beneficial effects as follows: the demulsifying agent for dehydration of high-sulphur heavy crude that adopts present method preparation, when the crude oil sulphur content is dewatered greater than 4% crude oil, dehydration temperaturre is 50 ℃, when dosage is 80mg/l, moisture less than 0.5% in the crude oil after the dehydration, oil-containing is less than 100mg/l in the sewage.Reach the dehydrating of crude oil standard-required, improved dewatering efficiency, lowered the consumption of emulsion splitter.
Embodiment
Embodiment 1: demulsifying agent for dehydration of high-sulphur heavy crude each component weight ratio is:
1, tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether (emulsion splitter AE121): 5.8%;
2, polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer (emulsion splitter SAE): 16.3%;
3, rosin Amine D polyoxyethylene polyoxypropylene ether (emulsion splitter 101): 6.5%;
4, FC-N01 fluorocarbon surfactant: 0.11%
5, methyl alcohol: 21%;
6, all the other are water, each component weight and be 100%.
The demulsifying agent for dehydration of high-sulphur heavy crude preparation process:
At first, tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether, polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer, rosin Amine D polyoxyethylene polyoxypropylene ether, four kinds of raw materials of FC-N01 fluorocarbon surfactant are added enamel reaction still in proportion.Slowly be warmed up to 55 ℃.
Secondly, under constantly stirring, add the first alcohol and water in proportion, continue to stir after 30 minutes, stop heating.
At last, stir, be cooled to normal temperature while cooling off.Obtain demulsifying agent for dehydration of high-sulphur heavy crude.
Embodiment 2～5 demulsifying agent for dehydration of high-sulphur heavy crude each component weight percents:
| The component title | Example 2 | Example 3 | Example 4 | Example 5 |
| Tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether (emulsion splitter AE121) | 3.5 | 4.5 | 6.7 | 8.3 |
| Polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer (emulsion splitter SAE) | 13.5 | 15.5 | 18.6 | 17.2 |
| Rosin Amine D polyoxyethylene polyoxypropylene ether (emulsion splitter 101) | 5.9 | 6.8 | 6.8 | 7.3 |
| The FC-N01 fluorocarbon surfactant | 0.09 | 0.1 | 0.13 | 0.11 |
| Methyl alcohol | 22 | 22 | 21 | 22.5 |
| Water | All the other | All the other | All the other | All the other |
Embodiment 2～5 demulsifying agent for dehydration of high-sulphur heavy crude, each component weight and be 100%, preparation process is identical with embodiment 1.
Utilize the present invention on probation at Zhao's one dehydration of high-sulphur heavy crude of North China Oilfield the 5th oil recovery factory from June, 2003, moisture less than 0.1% in the crude oil of dehydration back, oil-containing is less than 100mg/l in the sewage.Reach the dehydrating of crude oil standard-required, improved dewatering efficiency, lowered the consumption of emulsion splitter.
Claims (3)
1, a kind of demulsifying agent for dehydration of high-sulphur heavy crude is characterized in that the each component weight ratio is:
A, tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether: 2.5～8.8%;
B, polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer: 13～21%;
C, rosin Amine D polyoxyethylene polyoxypropylene ether: 5.5～8%;
D, FC-N01 fluorocarbon surfactant: 0.05～0.15%;
E, methyl alcohol: 20～25%;
F, all the other are water, each component weight and be 100%.
2, demulsifying agent for dehydration of high-sulphur heavy crude according to claim 1 is characterized in that the each component weight ratio is:
A, tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether: 4.5～8.8%;
B, polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer: 15～19%;
C, rosin Amine D polyoxyethylene polyoxypropylene ether: 6.5～7.5%;
D, FC-N01 fluorocarbon surfactant: 0.08～0.15%;
E, methyl alcohol: 20～25%;
F, all the other are water, each component weight and be 100%.
3, demulsifying agent for dehydration of high-sulphur heavy crude according to claim 1, the its preparation method feature is: at first, tetraethylene pentamine polyoxyethylene poly-oxygen propylene aether, polyoxyethylene polyoxypropylene polyethylene polyamine ether polysiloxane copolymer, rosin Amine D polyoxyethylene polyoxypropylene ether, four kinds of raw materials of FC-N01 fluorocarbon surfactant are added in the enamel reaction still of the 2000L with stirring, heating, cooling and vacuum system in proportion, slowly be warmed up to 50～65 ℃; Secondly, under constantly stirring, add the first alcohol and water in proportion, continue to stir after 30 minutes, stop heating; At last, stir, be cooled to normal temperature, obtain demulsifying agent for dehydration of high-sulphur heavy crude while cooling off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101171064A CN101328429B (en) | 2008-07-24 | 2008-07-24 | Demulsifier for dehydrating heavy viscous oil with high sulfur content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101171064A CN101328429B (en) | 2008-07-24 | 2008-07-24 | Demulsifier for dehydrating heavy viscous oil with high sulfur content |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101328429A true CN101328429A (en) | 2008-12-24 |
| CN101328429B CN101328429B (en) | 2012-08-08 |
Family
ID=40204441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101171064A Active CN101328429B (en) | 2008-07-24 | 2008-07-24 | Demulsifier for dehydrating heavy viscous oil with high sulfur content |
Country Status (1)
| Country | Link |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140365A (en) * | 2010-01-28 | 2011-08-03 | 中国石油化工集团公司 | Acid-containing crude oil demulsifying agent and preparation method thereof |
| CN102432888A (en) * | 2011-08-15 | 2012-05-02 | 陕西科技大学 | Comb-shaped polysiloxane crude-oil demulsifying agent and preparation method thereof |
| CN102732292A (en) * | 2011-04-11 | 2012-10-17 | 中国科学院过程工程研究所 | Multi-component complex low temperature coal tar demulsifier |
| CN104479732A (en) * | 2014-11-14 | 2015-04-01 | 天津大港油田滨港集团博弘石油化工有限公司 | Crude oil demulsifier |
| CN106118720A (en) * | 2016-08-08 | 2016-11-16 | 合肥永佳新材料科技有限公司 | A kind of heavy high-acid crude oil rapid demulsifier and preparation method thereof |
| CN111763510A (en) * | 2020-07-07 | 2020-10-13 | 山东新港化工有限公司 | Temperature-resistant salt-resistant surfactant for pressure reduction and injection augmentation and preparation method and application thereof |
Families Citing this family (1)
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| CN103937539B (en) * | 2014-05-13 | 2015-12-09 | 陕西省石油化工研究设计院 | A kind of preparation method and application of condensate oil emulsion splitter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3835060A (en) * | 1972-08-21 | 1974-09-10 | Texaco Inc | Demulsification compositions containing alkyl ether sulfates |
| CN1195046C (en) * | 2002-08-06 | 2005-03-30 | 中国石油化工集团公司 | Broad-spectrum demulsifier for crude oil |
| CN100513525C (en) * | 2006-10-17 | 2009-07-15 | 中国石油天然气股份有限公司 | Dehydration demulsifier for crude oil produced liquid of polymer flooding of heavy oil reservoir |
| CN101029252B (en) * | 2007-03-23 | 2010-07-21 | 中国石油天然气股份有限公司 | Low-temperature demulsifier for dehydration of crude oil produced liquid |
-
2008
- 2008-07-24 CN CN2008101171064A patent/CN101328429B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140365A (en) * | 2010-01-28 | 2011-08-03 | 中国石油化工集团公司 | Acid-containing crude oil demulsifying agent and preparation method thereof |
| CN102140365B (en) * | 2010-01-28 | 2013-08-14 | 中国石油化工集团公司 | Acid-containing crude oil demulsifying agent and preparation method thereof |
| CN102732292A (en) * | 2011-04-11 | 2012-10-17 | 中国科学院过程工程研究所 | Multi-component complex low temperature coal tar demulsifier |
| CN102432888A (en) * | 2011-08-15 | 2012-05-02 | 陕西科技大学 | Comb-shaped polysiloxane crude-oil demulsifying agent and preparation method thereof |
| CN102432888B (en) * | 2011-08-15 | 2013-05-15 | 陕西科技大学 | Comb-shaped polysiloxane crude-oil demulsifying agent and preparation method thereof |
| CN104479732A (en) * | 2014-11-14 | 2015-04-01 | 天津大港油田滨港集团博弘石油化工有限公司 | Crude oil demulsifier |
| CN106118720A (en) * | 2016-08-08 | 2016-11-16 | 合肥永佳新材料科技有限公司 | A kind of heavy high-acid crude oil rapid demulsifier and preparation method thereof |
| CN111763510A (en) * | 2020-07-07 | 2020-10-13 | 山东新港化工有限公司 | Temperature-resistant salt-resistant surfactant for pressure reduction and injection augmentation and preparation method and application thereof |
| CN111763510B (en) * | 2020-07-07 | 2021-08-06 | 山东新港化工有限公司 | Temperature-resistant salt-resistant surfactant for pressure reduction and injection augmentation and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN101328429B (en) | 2012-08-08 |
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