The Research on Weak Alkali ASP Compound Flooding System for Shengli Heavy Oil
In order to avoid the disadvantages caused by strong alkali used in enhanced oil recovery, sodium metaborate was compounded with nonionic surfactant nonylphenol polyoxyethlene polyoxypropylene ether sulfate and hydrolyzed polyacrylamide for the first time as a chemical displacement agent for Shengli heavy oil. The interfacial tension between crude oil and aqueous solutions, emulsification tests, microscopic displacement properties and sandpack flooding were investigated. It can be observed that the interfacial tension was reduced to ultra-low value due to the synergy effect between the weak alkali and surfactant. The microscopic displacement tests showed that there was an optimum surfactant concentration for alkali-surfactant flooding system to obtain larger sweep efficiency. And the recovery efficiency can be further increased by addition of hydrolyzed polyacrylamide. The oil recovery increased with the increasing of hydrolyzed polyacrylamide concentration. The newly designed compound system was proven to have the application potential on pilot tests.
Key words: Weak alkali; Sodium metaborate; Compound flooding system; Nonylphenol polyoxyethlene polyoxypropylene ether sulfate; Heavy oil
 Liu, Q., Dong, M. Z., Yue, X. A., & Hou, J.R. (2006). Synergy of Alkali and Surfactant in Emulsification of Heavy Oil in Brine. Colloids and Surfaces A, 273(1-3), 219-228.
 Liu, Q., Dong, M. Z., Ma, S. Z., & Tu, Y. (2007). Surfactant Enhanced Alkaline Flooding for Western Canadian Heavy Oil Recovery. Colloids and Surfaces A, 293(1-3), 63-71.
 Dong, M. Z., Ma, S. Z., & Liu, Q. (2009). Enhanced Heavy Oil Recovery Through Interfacial Instability: A Study of Chemical Flooding for Brintnell Heavy Oil. Fuel, 88(6), 1049-1056.
 Wang, H. Y., Cao, X. L., Zhang, J. C., & Zhang, A. M. (2009). Development and Application of Dilute Surfactant–Polymer Fooding System for Shengli Oilﬁeld. Journal of Petroleum Science and Engineering, 65(1-2), 45-50.
 Gong, H. J., Xia, X., Xu, G. Y., & Wang, Y. J. (2008). The Dynamic Interfacial Tension Between HPAM/C17H33COONa Mixed Solution and Crude Oil in the Presence of Sodium Halide. Colloids and Surfaces A, 317(1-3), 522-527.
 Gong, H. J., Xu, G. Y., Zhu, Y. Y., Wang, Y. J., Wu, D., Niu, M. Y., Wang, L. S., Guo, H. J., & Wang, H. B. (2009). Inﬂuencing Factors on the Properties of Complex Systems Consisting of Hydrolyzed Polyacrylamide/Triton X-100/Cetyl Trimethylammonium Bromide: Viscosity and Dynamic Interfacial Tension Studies. Energy Fuels, 23(1), 300-305.
 Li, G. Z., Mu, J. H., Li, Y., & Yuan, S. L. (2000). An Experimental Study on Alkaline/Surfactant/Polymer Fooding Systems Using Nature Mixed Carboxylate. Colloids and Surfaces A, 173(1-3), 219-229.
 Zhu, Y. Y., Hou, Q. F., Yuan, H., Wang, Z., & Wu, J. (2010). Synthesis and Properties of Petroleum Sulfonates for Weak Alkali ASP/Alkali-free SP Combination Flooding. Paper SPE133419 Presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, Brisbane, Queensland, October, 1-9.
 Kokal, S. & Aramco, S. (2002). Crude-Oil Emulsions: A State-of-the-Art Review. SPE Production & Facilities, 20(1), 5-13.
 Ding, B. D., Zhang, G. C., Ge, J. J., & Liu, X. L. (2010). Research on Mechanisms of Alkaline Flooding for Heavy Oil. Energy Fuels, 24(12), 6346-6352.
 Pei, H. H., Zhang, G. C., Ge, J. J., Tang, M. G., & Zheng, Y. F. (2012). Comparative Effectiveness of Alkaline Flooding and Alkaline−Surfactant Flooding for Improved Heavy-Oil Recovery. Energy Fuels, 26(5), 2911-2919.
- There are currently no refbacks.
If you have already registered in Journal A and plan to submit article(s) to Journal B, please click the CATEGORIES, or JOURNALS A-Z on the right side of the "HOME".
We only use three mailboxes as follows to deal with issues about paper acceptance, payment and submission of electronic versions of our journals to databases:
firstname.lastname@example.org; email@example.com; firstname.lastname@example.org
Copyright © 2010 Canadian Research & Development Centre of Sciences and Cultures
Address: 758, 77e AV, Laval, Quebec, H7V 4A8, Canada
Telephone: 1-514-558 6138