Study of Dual Hydrogel Behavior Versus Oil and Water in order to Control Water Production

Document Type : Research Article


1 Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, I.R. IRAN

2 Chemistry and Chemical Engineering Research Center of Iran, Tehran, I.R. IRAN

3 Department of Chemical Engineering, University of Malaya, MALAYSIA


As polymer gels were successful in water shutoff production, in this research a polymer gel of sulfonated polyacrylamide copolymer and chromium triacetate as crosslinker was studied. For this purpose, bottle tests and filter gel system were used for the first time in the country and also strain sweep tests were carried out. According to the results, quadratic equations based on the parameters were presented predicting the rupture pressure gradient due to the oil and water injection and output gel because of oil and water injection based on polymer and chromium triacetate concentrations. The results showed that polymer concentration among crosslinker concentration and their interaction had the most effect on rupture pressure gradient and output gel due to oil and water injection. Besides, in the constant concentration of crosslinker, the increase of copolymer concentration caused an increase of rupture pressure to 5 times due to the increase of elastic modulus of the gel network and its strength. So by increasing of strain up to 1000%, the gel strength was stable. In fact, up to strain less than 100%, the hydrogel can keep and return to its initial shape. The results of gel rupture led to present a new mechanism to show the disproportionate permeability reduction (called as the creation of greater ruptures inside of gel by oil instead of water) which in that at same condition of experiments the ability of oil in gel rupture and creating greater rupture is more than water.


Main Subjects

[1] Bai B., Zhou J., Yin M., A Comprehensive Review of Polyacrylamide Polymer Gels for Conformance Control, Petroleum Exploration and Development, 42(4): 525-32 (2015).
[2] Simjoo M., Vafaie Sefti M., Dadvand Koohi A., Hasheminasab R., Sajadian V., Polyacrylamide Gel Polymer as Water Shut-off System: Preparation and Investigation of Physical and Chemical Properties in One of the Iranian Oil Reservoirs Conditions, Iranian Journal of Chemistry and Chemical Engineering (IJCCE), 26(4): 99-108 (2007).
[3] Elsharafi M.O., Bai B., Effect of Back Pressure on the Gel Pack Permeability in Mature Reservoir, Fuel, 183: 449-56 (2016).
[4] Goudarzi A., Zhang H., Varavei A., Taksaudom P., Hu Y., Delshad M., Bai B., Sepehrnoori K., A laboratory and Simulation Study of Preformed Particle Gels for Water Conformance Control, Fuel, 140: 502-13 (2015).
[5] Mousavi Moghadam A., Vafaie Sefti M., Baghban Salehi M., Naderi H., Bulk and Rheological Properties of Polyacrylamide Hydrogels for Water Shutoff Treatment, Korean Journal of Chemical Engineering, 31(3): 532-539 (2014).
[6] Vafaie Sefti M., Naderi H., Baghban Salehi M., Hashemi Nasab Zavareh R., Sajadian V., Hasani A., Dadvand kohi A., Saeidi Dehagani, A.H., Experimental Study of Polymer Gels Performance In order to Prevent Water Production in Oil Production Wells, Iranian Journal of Chemistry and Chemical Engineering (IJCCE), 27(2): 30-21 (1387).
[7] Baghban Salehi M., Vasheghani-Farahani E., Vafaie Sefti M., Mousavi Moghadam A., Naderi H., Rheological and Transport Properties of Sulfonated Polyacrylamide Hydrogels for Water Shutoff in Porous Media, Polymers for Advanced Technologies, 25: 4396-405 (2014).
[8] Vafaie Sefti M., Naderi H., Baghban Salehi M., Hashemi Nasab Zavareh R., Modeling and Effects of Polymer Gel Injection to the index of one of Iranian Reservoirs, Iranian Journal of Chemistry and Chemical Engineering (IJCCE), 26(4): 51-61 (1386).
[9] Saghafi H.R., Naderifar A., Gerami S., Farasat A., Performance Evaluation of Viscosity Characteristics of Enhanced Preformed Particle Gels (PPGs), Iranian Journal of Chemistry and Chemical Engineering (IJCCE), 35(3):83-92 (2016).
[10] Seright R.S., Lane R.H., Sydansk R.D., "A Strategy for Attacking Excess Water Production", SPE Permian Basin Oil and Gas Recovery Conference, Midland, Texas (2001).
[11] Ganguly S., Effect of Pressure Gradient on the Flow of Oil and Water in Gel-Filled Pore, Chemical Engineering Research and Design, 89(11): 2380-2388 (2011).
[13] Aldhaheri M., Wei M., Bai B., Alsaba M., Development of Machine Learning Methodology for Polymer Gels Screening for Injection Wells, Journal of Petroleum Science and Engineering, 151: 77-93 (2016).
[14] Wever D.A.Z., Picchioni F., Broekhuis A.A., Polymers for Enhanced Oil Recovery: A Paradigm for Structure–Property Relationship in Aqueous Solution, Progress in Polymer Science., 36(11):1558-628 (2011).
[15] Moradi-Araghi A., A Review of Thermally Stable Gels for Fluid Diversion in Petroleum Production, Journal of Petroleum Science and Engineering, 26: 1-10 (2000).
[16] Moradi-Araghi A., Doe P., Hydrolysis and Precipitation of Polyacrylamide in Hard Brines at Elevated Temperatures, SPEREJ, 2(2): 189-198 (1987).
[17] Doe P.H., Moradi-Araghi A., Shaw J.E., Stahl G.A., Development and Evaluation of EOR Polymers Suitable for Hostile Environments: Copolymers of Vinylpyrrolidone and Acrylamide, SPEREJ, 2(4): 461-467 (1987).
[18] Hackley V.A., Ferraris C.F., "Guide to Rheological Nomenclature: Measurements in Ceramic Particulate Systems", National Institute of Standards and Technology, (2001).
[20] Zhang G., Chen L., Ge J., Jiang P., Zhu X., Experimental Research of Syneresis Mechanism of HPAM/Cr3+ Gel, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 483: 96-103 (2015).
[21] Green D.W., et al. "Insitu Permeability Modification Using Gelled Polymer Systems", Topical Report, June 10, 1996--April 10, 1997. 1997: United States.
[22] Pham L.T., Hatzignatiou D.G., Rheological Evaluationof a Sodium Silicate Gel System for Water Management in Mature, Naturally-Fractured Oilfields, Journal of Petroleum Science and Engineering, 138: 218-33 (2016).