CN1200070C - Viscosity reducing and drag reducing agent for high viscosity well - Google Patents
Viscosity reducing and drag reducing agent for high viscosity well Download PDFInfo
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- CN1200070C CN1200070C CN 03129869 CN03129869A CN1200070C CN 1200070 C CN1200070 C CN 1200070C CN 03129869 CN03129869 CN 03129869 CN 03129869 A CN03129869 A CN 03129869A CN 1200070 C CN1200070 C CN 1200070C
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- oil
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 16
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 12
- 229920000570 polyether Polymers 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- 239000003960 organic solvent Substances 0.000 claims abstract description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 14
- -1 polyoxyethylene Polymers 0.000 claims description 8
- 239000000295 fuel oil Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- DTPCFIHYWYONMD-UHFFFAOYSA-N decaethylene glycol Polymers OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO DTPCFIHYWYONMD-UHFFFAOYSA-N 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 4
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 claims description 3
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 239000004147 Sorbitan trioleate Substances 0.000 claims description 3
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical group CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 3
- 229940047670 sodium acrylate Drugs 0.000 claims description 3
- 235000019337 sorbitan trioleate Nutrition 0.000 claims description 3
- 229960000391 sorbitan trioleate Drugs 0.000 claims description 3
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 claims description 2
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 claims description 2
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 2
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 claims description 2
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 claims description 2
- 229920000053 polysorbate 80 Polymers 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- BWYYYTVSBPRQCN-UHFFFAOYSA-M sodium;ethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=C BWYYYTVSBPRQCN-UHFFFAOYSA-M 0.000 claims 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000007764 o/w emulsion Substances 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000003129 oil well Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229920005610 lignin Polymers 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-YPZZEJLDSA-N carbon-10 atom Chemical compound [10C] OKTJSMMVPCPJKN-YPZZEJLDSA-N 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000012747 synergistic agent Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 13
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 description 3
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000001593 sorbitan monooleate Substances 0.000 description 1
- 235000011069 sorbitan monooleate Nutrition 0.000 description 1
- 229940035049 sorbitan monooleate Drugs 0.000 description 1
- 239000001587 sorbitan monostearate Substances 0.000 description 1
- 235000011076 sorbitan monostearate Nutrition 0.000 description 1
- 229940035048 sorbitan monostearate Drugs 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Lubricants (AREA)
Abstract
The present invention relates to a viscosity reducing and drag reducing agent for thick oil wells, which is prepared by combining organic solvent of aromatic hydrocarbon of carbon 7 to carbon 10, oil-soluble water dispersing polyether demulsifying agents, lignin modified amphoteric high molecular surfactants, reverse dispersing stability regulating agents, high molecular carbon chain linear polymer drag reducing agents and synergistic agents according to a scale. The viscosity reducing and drag reducing agent is injected to a well bottom to make high viscosity water-in-oil thick oil reversely changed into oil-in-water emulsion for extraction. Oil dispersed in water is a disperse phase, and water is a continuous phase, so that the viscosity of the oil-in-water emulsion is only relevant to the viscosity of water but is irrelevant to that of oil. As a result, the viscosity of thick oil is reduced greatly, and the difficulty of extracting thick oil is obviously reduced. The present invention has the advantages of simple technology in field application, no pipe column corrosion because of the pH of 6 to 8, favorable compatibility and no pollution, and requirements of environmental protection are satisfied. The application range of crude viscosity is from 100 to 10000mPa. s.
Description
Technical Field
The invention relates to a drag reducer, in particular to a viscosity reduction drag reducer for a heavy oil well.
Background
The exploitation of heavy oil reservoirs is a worldwide problem. Because the viscosity of the thick oil is high, the seepage capability in an oil layer is poor, the shaft is difficult to lift, and the oil extraction speed is low. The research and application of the oil well viscosity reduction technology in a thick oil area have very important significance for improving the development effect of a thick oil block and further using thick oil resources.
Disclosure of Invention
The invention develops the viscosity reduction drag reducer of the heavy oil well aiming at the heavy oil reservoir, can well realize the improvement of the pump efficiency and the prolonging of the pump service life, reduce the production cost and increase the oil gas yield, has great significance for the development and production of the heavy oil field, and has obvious economic benefit and social benefit.
The components and contents of the invention are as follows (in weight percentage, the same as below):
carbon 7-carbon 10 aromatic hydrocarbon organic solvent: 50-80%;
oil-soluble water-dispersible polyether demulsifier: 10 to 20 percent;
lignin-modified amphoteric polymeric surfactant: 5 to 10 percent;
reverse dispersion stabilization adjuster: 1 to 5 percent;
drag reducer for high molecular carbon chain linear polymers: 1 to 5 percent;
a synergist: balance of
Wherein,
the C7-C10 aromatic hydrocarbon organic solvent can be C7 aromatic hydrocarbon, C8 aromatic hydrocarbon, C9 aromatic hydrocarbon and C10 aromatic hydrocarbon;
the oil-soluble water-dispersible polyether demulsifier comprises oil-soluble water-dispersible polyether demulsifiers BH-01, BH-04 and BH-09 of Bohai sea petroleum production engineering technical service company; this demulsifier is already commercially available.
The natural polymer modified amphoteric high molecular surfactant comprises lignin modified amphoteric high molecular surfactant;
the reverse dispersion stability regulator comprises nonylphenol polyoxyethylene (15) ether, octylphenol polyoxyethylene (10) ether and the like;
the high molecular carbon chain linear polymer drag reducer comprises acrylic acid high carbon alcohol ester, sodium acrylate and sodium ethylene sulfonate copolymer and the like;
the synergist comprises polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate and the like.
The preparation method of the drag reducer comprises the following steps: adding the components in proportion at room temperature and normal pressure, stirring for 0.5-2 hours to fully mix, and standing for 10-15 hours.
The viscosity-reducing drag reducer is injected into the well to make the high viscosity water-in-oil thick oil reversely form an oil-in-water emulsion for extraction. The oil is dispersed in water as a disperse phase, and the water is a continuous phase, so that the viscosity of the oil-in-water emulsion is only related to the viscosity of the water and is not related to the oil, the viscosity of the thickened oil is greatly reduced, and the difficulty of the thickened oil recovery is obviously reduced.
The invention has the technical characteristics that: the field application process is simple; the viscosity range of the applicable crude oil is 100-10000 mPa.s; PH is 6-8, does not corrode the pipe column; the compatibility is good; no pollution and meeting the requirement of environmental protection.
Depending on the production and the different production rates, it is recommended to use concentrations of 0.1-0.3% (i.e. 0.1-0.3 tons of viscosity-reducing drag-reducing agent are added per 100 tons of liquid produced).
Detailed Description
Example 1:
carbon 7 aromatic hydrocarbon: 50 percent of
Oil-soluble water-dispersible polyether demulsifier BH-01: 15 percent of
Lignin-modified amphoteric polymeric surfactant: 10 percent of
Nonylphenol polyoxyethylene (15) ether: 5 percent of
Acrylic acid higher alcohol ester: 5 percent of
Sorbitan monooleate polyoxyethylene ether: 15 percent.
Example 2:
carbon 8 aromatic hydrocarbon: 60 percent of
Oil-soluble water-dispersible polyether demulsifier BH-09: 20 percent of
Lignin-modified amphoteric polymeric surfactant: 8 percent of
Octylphenol polyoxyethylene (10) ether: 4 percent of
Sodium acrylate and sodium vinyl sulfonate copolymer: 4 percent of
Sorbitan monostearate polyoxyethylene ether: 4 percent.
Example 3:
carbon 10 aromatic hydrocarbon: 80 percent of
Oil-soluble water-dispersible polyether demulsifier BH-04: 10 percent of
Lignin-modified amphoteric polymeric surfactant: 5 percent of
Octylphenol polyoxyethylene (10) ether: 1 percent of
Acrylic acid higher alcohol ester: 1 percent of
Sorbitan trioleate polyoxyethylene ether: 3 percent.
Claims (1)
1. The viscosity-reducing drag reducer for the heavy oil well comprises the following components in percentage by weight:
carbon 7-carbon 10 aromatic hydrocarbon organic solvent: 50-80%;
oil-soluble water-dispersible polyether demulsifier: 10 to 20 percent
Lignin-modified amphoteric polymeric surfactant: 5 to 10 percent;
reverse dispersion stabilization adjuster: 1 to 5 percent;
drag reducer for high molecular carbon chain linear polymers: 1 to 5 percent;
a synergist: the balance;
wherein:
the oil-soluble water-dispersible polyether demulsifier is an oil-soluble water-dispersible polyether demulsifier BH-01, an oil-soluble water-dispersible polyether demulsifier BH-04 or an oil-soluble water-dispersible polyether demulsifier BH-09 of a Bohai sea petroleum production engineering technical service company;
the reverse dispersion stability regulator is nonylphenol polyoxyethylene (15) ether or octylphenol polyoxyethylene (10) ether;
the high molecular carbon chain linear polymer drag reducer is acrylic acid high carbon alcohol ester or copolymer of sodium acrylate and sodium ethylene sulfonate;
the synergist is polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate or trioleate polyoxyethylene sorbitan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129869 CN1200070C (en) | 2003-05-21 | 2003-05-21 | Viscosity reducing and drag reducing agent for high viscosity well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03129869 CN1200070C (en) | 2003-05-21 | 2003-05-21 | Viscosity reducing and drag reducing agent for high viscosity well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458222A CN1458222A (en) | 2003-11-26 |
| CN1200070C true CN1200070C (en) | 2005-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03129869 Expired - Fee Related CN1200070C (en) | 2003-05-21 | 2003-05-21 | Viscosity reducing and drag reducing agent for high viscosity well |
Country Status (1)
| Country | Link |
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| CN (1) | CN1200070C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7285582B2 (en) * | 2004-12-30 | 2007-10-23 | Conocophillips Company | Modified latex drag reducer and processes therefor and therewith |
| CN100464828C (en) * | 2006-03-09 | 2009-03-04 | 关雪梅 | Lignin parents amphoteric surface active agent |
| CN102051163A (en) * | 2009-10-27 | 2011-05-11 | 万达集团股份有限公司 | High temperature dispersion stabilizer for gelatine and asphaltene |
| CN103710015B (en) * | 2013-12-25 | 2016-08-17 | 四川宝麟新材料科技有限公司 | A kind of oil gas field volume increase emulsion-type drag reducer and preparation method thereof |
| CN103937484B (en) * | 2014-05-09 | 2015-06-10 | 余维初 | Shale gas well slickwater fracturing fluid system high-efficiency emulsion quick water-soluble drag reducer |
| CN104312574B (en) * | 2014-11-11 | 2017-05-17 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Drag-reduction water system, preparation method and application |
| CN105295881A (en) * | 2015-06-29 | 2016-02-03 | 戴文洁 | Thick oil molecule dispersion and emulsification composite viscosity reducer as well as preparation method and application thereof |
| CN105062451B (en) * | 2015-07-20 | 2017-11-07 | 辽宁奇圣石油技术有限公司 | A kind of oil base is cold to adopt thinner |
| CN105950128A (en) * | 2016-07-04 | 2016-09-21 | 四川行之智汇知识产权运营有限公司 | Viscosity reducer of petroleum crude oil |
| CN106190083A (en) * | 2016-07-04 | 2016-12-07 | 四川行之智汇知识产权运营有限公司 | The preparation method of petroleum crude oil thinner |
| CN108531156B (en) * | 2018-04-03 | 2020-11-17 | 东营市百扬石油科技有限责任公司 | Thickened oil dispersion oil production auxiliary agent suitable for offshore oil field |
| CN111847817B (en) * | 2020-09-01 | 2022-11-11 | 广西大学 | A kind of oil sludge demulsifier, preparation method and application thereof |
-
2003
- 2003-05-21 CN CN 03129869 patent/CN1200070C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1458222A (en) | 2003-11-26 |
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