METHOD OF EXPLOITATION OF OIL POOL Russian patent published in 1996 - IPC

FIELD: oil industry. SUBSTANCE: this method of exploitation of oil pool involves pumping of heat transfer agent and polymer solution through injection holes in sequence and cyclically and lifting of oil through production wells. Pumping of heat transfer agent and polymer solution is conducted by alternating endings. Heat transfer agent ending is pumped before polymer solution ending. Volumes of endings of heat transfer agent and polymer solution as well as their temperatures are found from analytical relations. Cycles of pumping of endings of heat transfer agent and polymer solution are continued till major mass of oil stock is exhausted. After this unheated water is pumped. EFFECT: method is meant for exploitation of oil pools having high viscosity. 1 dwg