Analysis of Reservoir Applicability of Hydrophobically Associating Polymer
- Kun Xie (Northeast Petroleum University) | Xiangguo Lu (Northeast Petroleum University) | Qiang Li (CNOOC Research Institute) | Weidong Jiang (CNOOC Limited) | Qin Yu (Northeast Petroleum University)
- Document ID
- Society of Petroleum Engineers
- SPE Journal
- Publication Date
- February 2016
- Document Type
- Journal Paper
- 1 - 9
- 2016.Society of Petroleum Engineers
- molecular clew, core pore, hydrophobically associating polymer, adaptability, reservoir heterogeneity
- 2 in the last 30 days
- 528 since 2007
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In this paper, the reservoir characteristics and fluid properties of a reservoir of the Bohai Sea oil field were taken as the research platform. It was confirmed that there exists compatibility between hydrophobically-associating-polymer (HAP) molecular aggregation and pore-throat size. The experiment for oil displacement in heterogeneous cores indicated that there exists applicability of HAP for a heterogeneous reservoir and the applicability can be influenced by polymer concentration. The experiment for oil displacement of parallel cores demonstrated the effect of polymer concentration on the applicability of HAP for reservoir heterogeneity from two aspects of the dynamic behavior of oil displacement and the effectiveness of oil displacement. The results show that with the increase of HAP concentration, the association degree between polymer molecules increases, molecular-clew dimension enlarges, and the compatible size of pore throats of the core increases. The change of HAP concentration not only has an effect on the amount of liquid suctioned by different permeability layers and on the time of profile inversion, but also has an effect on the displacement ability of polymer solution within different layers. As polymer concentration changes, the adaptability of HAP for reservoir heterogeneity changes and the oil-recovery efficiency also changes.
|File Size||1 MB||Number of Pages||9|
Cao, B. and Luo, P. 2011. An Experimental Study on Rheological Properties of the Associating Polymer Solution in Porous Medium. Acta Petrolei Sinica 32 (4): 652–657. http://dx.chinadoi.cn/10.3321/j.issn:0253-2697.2006.01.018.
Cao, R., Han, P. and Hou, W. 2009. Section Inversion Rules and Inversion Mechanism of Polymer Flooding. Acta Petrolei Sinica 30 (2): 267–270. http://dx.chinadoi.cn/10.3321/j.issn:0253-2697.2009.02.019.
Chen, H., Han, L.-J., Xu, P., et al. 2003. The Thickening Mechanism Study of Hydrophobically Modified Polyacrylamide. Acta Physico-Chimica Sinica 19 (11): 1020–1024. http://dx.doi.org/10.3866/PKU.WHXB20031107.
Guo, L., Long, S., and Sheng, W. 2005. The making method for a heterogeneity artificial core of quartz sand by epoxy resin cementation. China ZL200510063665.8[P], 7 September 2005.
Jiang, W., Kang, X., Xie, K., et al. 2013. Degree of the Association of Hydrophobically Associating Polymer and Its Applicability to the Oil Reservoir. Petrol. Geol. Oilfield Dev. Daqing 32 (4): 103–107. http://dx.chinadoi.cn/10.3969/J.ISSN.1000-3754.2013.04.022.
Jiang, W., Zhang, J. And Tang, X. 2012. Compatibility of Clew Dimension of Flooding Polymer and Rock Pore Throat in Bohai Oil Field. Oilfield Chem. 29 (4): 446–451.
Liu, R., Jiang, H., Zhang, X., et al. 2010. Effective Characteristics of Early Polymer Flooding in Mid-to-Low Viscosity Offshore Reservoir. Acta Petrolei Sinica 31 (2): 280–283. http://dx.doi.org/10.7623/syxb201002017.
Lu, X., Song, K., Niu, J., et al. 2000. Performance and Evaluation Methods of Colloidal Dispersion Gels In the Daqing Oil Field. Presented at SPE Asia Pacific Conference on Integrated Modelling for Asset Management, Yokohama, Japan, 25–26April. SPE-59466-MS. http://dx.doi.org/10.2118/59466-MS.
Lu, X., Wang, S., Wang, R., et al. 2011. Applicability of a Deep Profile Control Agent to Reservoirs: Taking the Lamadian Oilfield in Daqing as an Example. Petrol. Explor. Dev. 38 (5): 576–582. http://dx.doi.org/10.1016/S1876-3804(11)60056-6.
Lu, X., Gao, Z. and Yan, W. 1994. Experimental Study of Factors Influencing Permeability of Artificial Core. Petrol. Geol. Oilfield Dev. Daqing 13 (4): 53–56.
Lv, X., Yue, X.-A., Jing, Y., et al. 2005. Research on Two Critical Concentrations Behavior of a Hydrophobically Associating Copolymer. Chemistry 68 (10): 793–796. http://dx.chinadoi.cn/10.3969/j.issn.0441-3776.2005.10.018.
Ren, K., Jiang, G., Xu, C., et al. 2005. Solution Confirmation of Hydrophobically Associating Polymers. J. China Univ. Petrol. 29 (2): 117–120. http://dx.chinadoi.cn/10.3321/j.issn:1000-5870.2005.02.029.
Sun, H. 2006. Practice and Understanding on Tertiary Recovery in Shengli Oilfield. Petrol. Explor. Dev. 33 (3): 262–266. http://dx.chinadoi.cn/10.3321/j.issn:1000-0747.2006.03.002.
Taylor, K. C. and Nasr-El-Din, H. A. 2007. Hydrophobically Associating Polymers for Oil Field Applications. Presented at the Canadian International Petroleum Conference, Calgary, Alberta, Canada, 12–14 June. PETSOC-2007-016. http://dx.doi.org/10.2118/2007-016.
Wang, D.-M., Cheng, J.-C., Wu, J.-Z., et al. 2005. Application of Polymer Flooding Technology in Daqing Oilfield. Acta Petrolei Sinica 26 (1): 74–78. http://dx.doi.org/10.7623/syxb200501015.
Wang Demin, Chen Jiecheng, Yang Qingyan, et al. 2000. Viscous-Elastic Polymer Can Increase Micro-scale Displacement Efficiency in Cores. Acta Petrolei Sinica 21 (5): 45–51. http://dx.doi.org/10.7623/syxb200005010.
Wang, J., Wang, H., and Liu, H. 2005. Programming Basics of MATLAB 7.0, 182–189. Beijing: Mechanical Industry Press.
Wang, Y. 2010. Potential Evaluation Study on Enhanced Oil Recovery Reservior of Chemical Flooding for Offshore Oilfield: Taking SuiZhong 36-1 Oilfield for Example. Master’s thesis, China University of Petroleum.
Ye, Z., Peng, Y. and Shi, L. 2008. The influence of Shear Action in Porous Medium on Viscoelasticity and Oil Displacement Efficiency of Polymer. Petrol. Geol. Recov. Eff. 15 (5): 59–62. http://dx.chinadoi.cn/10.3969/j.issn.1009-9603.2008.05.017.
Zhai, Y. 2009. Seepage Flow Mechanics. Beijing Petrol. Ind. Press, 38–44.
Zhou, W., Zhang, J., Han, M., et al. 2007. Application of Hydrophobically Associating Water-Soluble Polymer for Polymer Flooding in China Offshore Heavy Oilfield. Presented at the International Petroleum Technology Conference, Dubai, UAE, 4–6December. http://dx.doi.org/10.2523/11635-MS.
Zhu, H., Luo, J., Yang, J., et al. 2005. Three Key Factors Influencing Oil-Displacement Capacity in Hydrophobically Associating Polymer Flooding. Acta Petrolei Sinica 26 (3): 52–55. http://dx.chinadoi.cn/10.3321/j.issn:0253-2697.2005.03.011.