LORINA MALOLLARI, DRILONA SAULI, LUMTURI HOXHA, LUSIVJANO LLUPI
KEYWORDS : Oil recovery, formation damage, polymer injection, water-oil mobility.
Abstract :
The purpose of this research was to study the polymer injection process and modelling of injection schemes in oil wells, thus exploring the possibility of increasing oil production from existing wells. In laboratory studies and field experiences, it has been demonstrated that this method is highly effective. The use of polymers started in the 1970s of the last century and continues, and they are still used in many locations with different characteristics. Polymer injection aims to use the ability of the polymer to reduce the water-oil mobility rate. Increasing the viscosity of the water reduces the fingering effect and causes the oil to be pushed toward the well conductor. It was considered the injection of polymer in the Patos Marinez wells in Albania. The lithology of the soil, the types of polymers, the changes in the flow rates of the wells, the rheology of the fluids, and the influence of the temperature and salinity were analysed. Petroleum is the primary source of energy worldwide. The increasing demand for fuels and energy has led to the search for new sources and the development of methods to intensify the use of existing reserves. One of the intensifying methods of oil production certainly is the methodology and technique of polymer injection into the oil-containing layers and/or existing reservoirs.