PROCESS INTENSIFYING OIL EXTRACTION Russian patent published in 2003 - IPC

FIELD: oil industry. SUBSTANCE: invention deals with intensification of operation of production wells and with growth of present oil recovery from pool. Given process provides for development of technological and inexpensive method of action on bottom of production well and enables well discharge to be increased due to control over phase penetrability of bottom zone and water content in recovered product to be reduced. In agreement with process hydrophobic-water repelling reagent in organic solvent is pumped into well. Increased pressure is formed in bottom zone by chaser and well is kept for certain time under this pressure. Still residue of production of santoquine is utilized in the capacity of hydrophobic-water repelling reagent. EFFECT: development of technological and inexpensive process of action on bottom of production well. 2 cl 1 tbl