FIELD: oil and gas production industry. SUBSTANCE: according to method intensification of oil inflow from bed is achieved by drilling main bore-hole of well with further increasing its diameter in lower part and drilling additional horizontal bore-holes. Enlarging diameter of lower part of main bore-hole is performed by mining method up to dimensions sufficient for bringing team of workers and technological equipment to bottom hole. After arrangement of technical station with built-in preventers, drilled are horizontal bore-holes of small diameter such as from 0.036 m to 0.059 m. Technical station is located below oil bed. Drilling of horizontal bore-holes is performed over floor of oil bed. Application of aforesaid method allows for increasing oil recovery from bed due to subjecting productive bed to wider range of treatment. EFFECT: higher efficiency. 2 dwg
展开▼