FIELD: transport.
SUBSTANCE: proposed method consists in allowing outflow of water from downhole via branch pipe by downhole surplus pressure. Said pressure is created by the weight of air lift with lifting pipe and water penetrating around hydraulic seals between downhole casing and air lift case walls. Atmospheric air is fed into mixing chamber via pipe isolated from air lift case inner space. Proposed device comprises downhole casing, air lift and means of hydraulic seal made from soft nonabrasive material. Air lift is provided with case, water outflow branch pipe, mixing chamber and mixing chamber inlet communicated via tube with atmosphere. Air lift case with lifting pipe is suspended on cable of lifting device, for example, winch.
EFFECT: higher stability of water lift in transient conditions.
1 dwg
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| WATER LIFTING METHOD, AND DEVICE FOR ITS IMPLEMENTATION | 2011 |
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RU2459981C1 |
