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Keywords: divalent cation
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Proceedings Papers
Anas Mohammed Hassan, Emad W. Al-Shalabi, Waleed AlAmeri, Muhammad S. Kamal, Shirish Patil, Syed M. Shakil Hussain
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Western Regional Meeting, May 22–25, 2023
Paper Number: SPE-213049-MS
... advantageous with lowest viscosity losses of 48%. For LSP injection de-risking measures, the divalent-cation’s effect was correlated with the CR value. Consequently, it is crucial to get an optimal CR value at which viscosity loss is minimum. Based on the CR analysis, a CR > 1 suggests negligible viscosity...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Western Regional Meeting, April 22–26, 2018
Paper Number: SPE-190046-MS
... of divalent cations such as Ca 2+ , Mg 2+ in the reservoir brine were also investigated. In this study, we demonstrated that using polymer solutions that have viscoelastic characteristic such as HPAM can indeed increase recovery more than shear-thinning behavior only, and more importantly was the effect...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Western Regional Meeting, April 27–30, 2015
Paper Number: SPE-174063-MS
... production trend. Reservoir cores saturated with connate water containing divalent cations of Ca +2 and Mg +2 showed higher oil recovery than for cores saturated with monovalent cations Na + . In all cases, a measurable ion exchange was observed, while there was no significant change in the pH...
