In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 726-731 ( 2013-8), p. 320-324
Abstract:
Studying the relationship of oil-water IFT and the stability of oil emulsion will further explain oil displacement mechanism in crude oil flooding. In this article, for nonylphenol polyoxyethylene ether can resist multivalence cations, the performance of associative surfactant containing HABS and nonylphenol polyoxyethylene ether (NP), the influence of the improvement of emulsion stability on the interfacial tension were studied by evaluating the interfacial tension and emulsion stability. Results show that nonionic surfactant NP-x (x=4, 6, 10) can improve the tolerance of HABS to NaOH with low concentration, and NP-6 appears the best synergistic effect, when C NaOH is not more than 1.2wt%, the IFT eq is lower than 9.9×10 -3 mN/m, within the concentration range of the investigation. At the same time, NP-x can improve oil emulsion stability, when C NaOH is 0.6wt%, C HPAM is 0.18wt%, total concentration of the surfactant (ω HABS :ω NP =8:2) are 0.05wt% and 0.1wt%, decreasing the balance interfacial tension between oil and water can be regarded as the guarantee of the emulsion stability.
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.726-731
DOI:
10.4028/www.scientific.net/AMR.726-731.320
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2013
detail.hit.zdb_id:
2265002-7
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