Polyacrylamide Gel Polymer as Water Shut-off System: Preparation and Investigation of Physical and Chemical Properties in One of the Iranian Oil Reservoirs Conditions

Document Type: Research Article


1 Oil, Gas and Thermodynamic Research Group, Tarbiat Modares University, Tehran, I.R. IRAN

2 RIPI/NIOC, Arvandan Company, Tehran, I.R. IRAN


In this paper, polyacrylamide/chromium acetate gel polymer system was prepared as water shut-off system to control water production in one of the Iranian oil reservoirs condition. Effect of various parameters such as temperature (90 °C) and water formation from view point of salinity and divalent cations, was evaluated on the gelation kinetic and gel strength using bottle testing method. The results showed that the increase of temperature caused a decrease in the gelation time. Also, presence of divalent cations in formation water, decreased gelation time and by precipitation could cause instability in gel structure.


Main Subjects

[1] Sparlin, D.D. and Hagen, R. W. Jr.,  Controlling Water in Producing Operations, Part 1- Where it Comes from and the Problems it Causes, World Oil J., (March 1984).

[2] Seright, R.S., A Strategy for Attacking Excess Water Production, Paper SPE 70067 Presented  at  the  SPE PermianBasin Oil and Gas Recovery Conference, Midland, Texas, (2001).

[3] Nasr-El-Din, H.A., Taylor, K.C., Evaluation of Sodium Silicate/Urea Gels Used for Water Shut-
Off Treatments, J. of Petroleum Science and Engineering, 48, (2005).

[4] Saxon, A., Keeping Water in its Place, Middle East Well Evaluation Review, 19, (1997).

[5] Simjoo, M., Gel Polymer Performance for Reducing Water Cut in Producing Well, M.Sc. Thesis, PetroleumUniversity of Technology, Ahwaz, IRAN, (2006).

[6] Willhite, G. P. and Pancake, R. E., Controlling Water Production Using Gel Polymer System, Paper SPE 89464 Presented at the SPE/DOE Symposium on Improved Oil Recovery, Tulsa, Oklahoma, (2004).

[7] Sydansk, R.D. et al., Field Testing of a New Conformance Improvement Treatment Chromium (III) Gel Technology, Paper SPE 17383 Presented at the SPE Enhanced Oil Recovery Symposium, Tulsa, Oklahoma, (1988).

[8] Al-Dhafeeri, et al., High-Permeability Carbonate Zones (Super-K) in Ghawar Field (Saudi Arabia): Identified, Characterized, and Evaluated for Gel Treatments, Paper SPE 97542 Presented at the SPE International Improved Oil Recovery Conference in Asia Pacific, Kuala Lumpur, Malaysia, (2005).

[9] Ali, E. et al., Effective Gas Shutoff Treatments in a Fractured Carbonate Field in Oman, Paper SPE 102244 Presented at the SPE Annual Technical Conference and Exhibition, San Antonio, Texas, USA, (2006).

[10] Zolfaghari, R.,  Katbab,  A. A.,  Nabavizadeh, J., Yousefzadeh, R., Hossein Nejad, M., Preparation and Characterization of Nanocomposite Hydrogels Based on Polyacrylamide for Enhanced Oil Recovery Applications, J. of Applied Polymer Science, 100, 3, (2006).

[11] Sajjadian,  V.,  Simjoo,  M.,  Vafaie  Seftie,  M., Hasheminasab, R. and Naderi, H., Experimental Study of Gel Polymer Treatment for Water Shut-Off in Producing Wells of Iranian Oil Reservoir, 11th Iranian Chemical Engineering Conference, Tarbiat Modares University, Tehran, Iran (2006).

[12] Vafaie Seftie, M., Hasheminasab, R., Simjoo, M., Dadvand, Hassani., Investigation of Physical and Chemical Performance of Polyacrylamide Gel Polymer for Iranian Oil Reservoir Condition, 11th Iranian Chemical Engineering Conference, Tarbiat Modarres University, Tehran, Iran (2006).

[13] Moradi Araghi, A., A Review of Thermally Stable Gels for Fluid Diversion in Petroleum Production,
J. of Petroleum Science and Engineering, 48, (2005).

[14] Green, D. W. and Willhite, G. P., Enhanced Oil Recovery,“SPE Text Book Series” (1998).

[15] Pérez. D. et al., Applications of Polymer Gel for Establishing Zonal Isolations and Water Shutoff in Carbonate Formations, SPE Drilling & Completion, 16, 3, (2001).

[16] Sydansk,  R., A  New Conformance Improvement Treatment Chromium (III) Gel Technology, Paper SPE 17329 Presented at the SPE Enhanced Oil Recovery Symposium, Tulsa, Oklahoma, (1988).

[17] Vossoughi. S., Profile Modification Using in Situ Gelation Technology: A Review, JournalofPetroleum Science and Engineering, 26, 199 (2000).

[18] Sydansk,  R.,  Conformance  Improvement in a Subterranean Hydrocarbon-Bearing Formation Using a Polymer Gel, US Patent, No.4683949, (1987).

[19] Seright, R.S. et al., Impact of Gelation pH, Rock Permeability, and Lithology on the Performance of a Monomer-Based Gel, SPE Reservoir Engineering, (Feb. 1993).

[20] Taylor,  K. C. and Nasr-El-Din, H.A., Water-Soluble Hydrophobically Associating Polymers for Improved Oil Recovery: A Literature Review, J. of Petroleum Science and Engineering, 19, (1997).

[21] Liu, J. and Seright, R.S., Rheology of Gels Used for Conformance Control in Fractures, SPE Journal, 6, 2, (2001).

[22] Broseta, D. and Zaitoun, A., Rheological Screening of Low Molecular-Weight Polyacrulamide/ Chromium (III) Acetate Water Shutoff Gels”, Paper SPE 59319 Presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, (2000).

[23] Abbasi,  F.,  Mirzadeh,  H.  and  Simjoo,  M. Hydrophilic Interpenetrating Polymer Networks of Poly (dimethyl siloxane) (PDMS) as Biomaterial for Cochlear Implants, J. of Biomaterials Science, Polymer Edition, 17, 3, (2006).