METHOD AND DEVICE FOR TREATING BOTTOM-HOLE ZONE OF BED Russian patent published in 1998 - IPC

FIELD: oil production industry. SUBSTANCE: this is intended for intensification of oil recovery by improving filtration characteristics of bottom-hole zone of bed and by testing of beds. According to method, bottom-hole zone of bed is subjected to simultaneous physical and pulsing depression and repression treatment so as to stabilize current values of hydraulic conductivity of bottom-hole zone. Mode of depression and repression treating operations is selected so that amount of liquid recovered from bed at depression in course of treatment is equal to amount of liquid pressure-forced into bed at depression cycle. After obtaining stabilized hydraulic conductivity of bottom-hole zone, amount of recovered liquid is set to be larger than amount of liquid pressure-forced into bed. Device for realization of aforesaid method incorporates units of equipment including inlet valve, with all of them having through-flow passage. Installed in through-flow passage of valve is electrically-powered adapter. Application of aforesaid method and device improves geological and economic efficiency of treating bottom-hole zone of bed due to more complete removal of plugging depositions and improved operating characteristics of equipment components. EFFECT: higher efficiency. 3 cl, 3 dwg