TY - JOUR ID - 12478 TI - An Experimental Study on Permeability Reduction Resulting from Mixed BaSO4, CaSO4, and SrSO4 Scale Deposition in Porous Media during Water Injection JO - Iranian Journal of Oil and Gas Science and Technology JA - IJOGST LA - en SN - 2345-2412 AU - Naseri, Saeed AU - Moghadasi, Jamshid AU - Jamialahmadi, Mohammad AD - Department of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Iran Y1 - 2015 PY - 2015 VL - 4 IS - 4 SP - 33 EP - 49 KW - Mixed Scale Formation KW - Single Scale KW - Permeability Reduction KW - Porous media KW - Sulfate Scale DO - 10.22050/ijogst.2016.12478 N2 - Sulfate scale deposition (BaSO4, CaSO4, and SrSO4) is a common problem in oilfield operations around the world, which causes significant formation damage during production and injection activities. This paper presents the results of an experimental study on the permeability reduction of porous media due to sulfate scale deposition. A set of experiments were conducted to investigate the effects of cation (Ba2+, Ca2+, and Sr2+ ions) concentration and the number of cation species on the permeability reduction resulting from single sulfate scales (single BaSO4, CaSO4, and SrSO4 scales) and mixed BaSO4, CaSO4, and SrSO4 scale deposition in porous media during water injection. The experiments were performed at a constant temperature of 70 °C and a constant anion (SO42- ion) concentration of 3968 ppm in the pack of glass beads as the porous media. The results show that the intensity of permeability reduction increases with increasing cation concentration. These results also declare that the permeability reduction of porous media due to mixed BaSO4, CaSO4, and SrSO4 is clearly severer than single scales. UR - https://ijogst.put.ac.ir/article_12478.html L1 - https://ijogst.put.ac.ir/article_12478_46ba9d8e7d44e4bee4d42a82fb28b95a.pdf ER -