METHOD OF INSTALLING GRAVEL FILTER IN WELL

摘要

FIELD: treating of producing wells. SUBSTANCE: this relates to recovery of product from wells. According to method, gravel mixture is pumped into well to required depth and of preset height. Gravel mixture is pumped to interval after interval. Gravel fractions are delivered in separate portions differentially with subsequent reduction of particle size in fraction for each interval in which gravel is being pumped. Height of each separate interval is 0.5-1.5 m depending on geological composition of productive bed. Application of aforesaid method prevents plugging of external filtering surface with sand brought from productive bed in process of recovering product from well. EFFECT: higher efficiency. 1 dwg