Plugging Behavior of Polymer Gel in Fractures by Multi-Slug Injection
Abstract
In order to understand the plugging mechanism, experiments of multi-slug gel plugging in single fracture and multiple fractures system were simulated by indoor visual fracture models. The experiments showed that there were two stages in the process of multi-slug gel plugging in single fracture: gel filling stage and gel compaction stage. When the total injection of gel is consistent, the brine flooding pressure gradient after multi-slug gel injection increased more than 2 times than the pressure gradient after single slug gel continuous injection. While there were three stages in the process of multi-slug gel plugging in multiple fractures system: Gel selectively entrance stage, gel filling stage and gel compaction stage. However, there would be no gel compaction stage, even no gel filling stage in the process of single cycle gel plugging in multiple fractures system.
Key words: Fractured reservoir; Multi-slug; Polymer gel; Plugging process
Keywords
Full Text:
PDFReferences
[1] Liu, J., Feng, X., & Liu, X. (2004). Physical and numerical simulation of water flooding effect in fractured sandstone oil reservoir. Chinese Journal of Rock Mechanics and Engineering, 23(14), 2013-2018.
[2] Fragachan, F., Cazares-Robles, F., Gutierrez, J., & Herrera, G. (1996). Controlling water production in naturally fractured reservoirs with inorganic gel. Paper presented at International Petroleum Conference, Villahermosa, Mexico.
[3] Sydansk, R. D. (1990). A newly developed chromium (III) gel technology. SPE Reservoir Engineering, 5(3), 346-352.
[4] Mack, J., & Smith, J. (1994). In-depth colloidal dispersion gels improve oil recovery efficiency. Paper presented at SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, USA.
[5] Sydansk, R., Al-Dhafeeri, A., Xiong, Y., & Seright, R. S. (2004). Polymer gels formulated with a combination of high-and low-molecular-weight polymers provide improved performance for water-shutoff treatments of fractured production wells. SPE Production & Facilities, 19(4), 229-236.
[6] Karaoguz, O. K., Topguder, N. N. S., Lane, R. H., Kalfa, U., & Celebioglu, D. (2007). Improved sweep in Bati Raman heavy-oil CO2 flood: Bullhead flowing gel treatments plug natural fractures. SPE Reservoir Evaluation & Engineering, 10(2), 164-175.
[7] Seright, R., & Lee, R. (1999). Gel treatments for reducing channeling in naturally fractured reservoirs. SPE Production & Facilities, 14(4), 269-276.
[8] Sydansk, R., Xiong, Y., Al-Dhafeeri, A., Schrader, R., & Seright, R. (2005). Characterization of partially formed polymer gels for application to fractured production wells for water-shutoff purposes. SPE Production & Facilities, 20(3), 240-249.
[9] Al-Assi, A. A., Willhite, G. P., Green, D. W., & McCool, C. S. (2006). Formation and propagation of gel aggregates using partially hydrolyzed polyacrylamide and aluminum citrate. Paper presented at SPE/DOE Symposium on Improved Oil Recovery, Tulsa, Oklahoma, USA.
[10] Ganguly, S., Willhite, G., Green, D., & McCool, C. (2002). The effect of fluid leakoff on gel placement and gel stability in fractures. SPE Journal, 7(3), 309-315.
[11] Bai, B., & Zhang, H. (2011). Preformed-particle-gel transport through open fractures and its effect on water flow. SPE Journal, 16(2), 388-400.
[12] Thompson, K. E., & Fogler, H. S. (1997). Pore-level mechanisms for altering multiphase permeability with gels. SPE Journal, 2(3), 350-362.
[13] Willhite, G., & Pancake, R. (2004). Controlling water production using gelled polymer systems. Paper presented at SPE/DOE Symposium on Improved Oil Recovery, Tulsa, Oklahoma, USA.
[14] Li, J., Qi, N., Zhang, Q., & Qu, Z. (2007). Research on large dose multi-block deep profile control and oil displacement technique. Oil Drilling& Production Technology, 29(2), 76-78.
DOI: http://dx.doi.org/10.3968/7134
Refbacks
- There are currently no refbacks.
Copyright (c)
Share us to: 
Reminder
We are currently accepting submissions via email only.
The registration and online submission functions have been disabled.
Please send your manuscripts to aped@cscanada.net，or aped@cscanada.org for consideration. We look forward to receiving your work.
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:
caooc@hotmail.com; aped@cscanada.net; aped@cscanada.org
Articles published in Advances in Petroleum Exploration and Development are licensed under Creative Commons Attribution 4.0 (CC-BY).
ADVANCES IN PETROLEUM EXPLORATION AND DEVELOPMENT Editorial Office
Address:1055 Rue Lucien-L'Allier, Unit #772, Montreal, QC H3G 3C4, Canada.
Telephone: 1-514-558 6138
Website: Http://www.cscanada.net
Http://www.cscanada.org
E-mail:office@cscanada.net; office@cscanada.org
Copyright © 2010 Canadian Research & Development Centre of Sciences and Cultures 
