Injectivity decline by fines migration with two-phase flow is important in low-salinity and smart waterflooding in oilfields. The complexity of detachment of the natural reservoir fines, their mobilization, migration and straining in two-phase environment preclude simple formulae for injectivity decline prediction. The objective of the present study is to derive of the semi-analytical model for two-phase axi-symmetric flow with variation of injected salinity, fines migration, and consequent permeability damage. A simple and robust model allows investigating the effects of injection rate, injected salinity, oil viscosity, relative permeability, and kaolinite content in the rock on skin-factor growth.

Keywords:
auxiliary system, Zeinijahromi, enhanced recovery, concentration, Salinity Water Injection, Upstream Oil & Gas, Bedrikovetsky, borazjani, injection, society of petroleum engineers
Subjects:
Improved and Enhanced Recovery, Waterflooding
Copyright 2018, Society of Petroleum Engineers
You can access this article if you purchase or spend a download.