Surfactant/ polymer/alkali ternary compounded oil displacing agent
The invention relates to a surfactant/ polymer/alkali ternary compounded system applicable to crude oil yield improvement of Zhyangxi crude oil in the Shengli oil field. The surfactant/ polymer/alkali ternary compounded system is prepared from anionic surfactants of aliphatic alcohol polyoxyethylene...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention relates to a surfactant/ polymer/alkali ternary compounded system applicable to crude oil yield improvement of Zhyangxi crude oil in the Shengli oil field. The surfactant/ polymer/alkali ternary compounded system is prepared from anionic surfactants of aliphatic alcohol polyoxyethylene ether sulfonates, hydrophobic modified polyacrylamide and sodium orthosilicate at a certain proportion. The system has the advantages that the yield of Zhyangxi crude oil in the Shengli oil field can be improved by 26.1 percent through being compared with that adopting water, the effect is good, and the Zhyangxi crude oil in Shengli oil field can be primarily used for improving the crude oil yield. |
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