DEVICE FOR TREATMENT OF WELLS Russian patent published in 1999 - IPC

FIELD: equipment for operation of wells. SUBSTANCE: relates to operation of oil, gas, water, and technological wells. Treatment of wells is aimed at increasing their output. Device has hollow body with inlet hole in its lower part which is closed by working valve. In given device, body is made in the form of dismantable string of pipes of total length not larger than depth of static level of liquid in well. Inlet valve is closed by working valve which is openable by means of pusher which is thrown away at opening of valve. Pusher is mounted on split under control. Pusher is gripped by catching head. Device can be additionally provided with vibrating valve, sealing collars, and settler. Aforesaid embodiment of device ensures multiple-cycle treatment process without lifting chamber body to surface. Device is efficient and safe in operation. EFFECT: higher efficiency. 1 cl, 3 dwg