METHOD OF CLEANING OIL-PRODUCING AND WATER WELLS Russian patent published in 2000 - IPC

FIELD: operation of wells; applicable in well cleaning. SUBSTANCE: cleaning of bottom-hole formation zone is based on removal of colmatants by periodic treatment of space adjacent to well with field of elastic vibrations. Subject to preliminary processing are geological, geophysical and hydrodynamic information and dynamics of main parameters of wells operation of the given oil field. Proceeding from results of information processing, wells with high formation pressure by blocked with mud fill are selected. Needed parameters of elastic vibrations are established and conditions of treatment are determined. Then selected producing intervals of bottom-hole formation zone are treated with field of elastic vibrations with preset parameters. Conditions and character of treatment are corrected by results of control over rate of removal of colmatants from bottom-hole formation zone. Efficiency of conducted treatment is assessed, and conditions of wells operation are corrected on the basis of obtained data. EFFECT: higher efficiency of treatment due to optimization of its conditions on basis of geological and oil field data, correction by data of expeditious monitoring in course of treatment, realization of results of improvement of permeability of bottom-hole formation zone under conditions of wells operation. 5 dwg