FIELD: mining.
SUBSTANCE: invention relates to mining, particularly to oil industry, and can be used for lifting fluid from oil-bearing formation with using gas-lift effect of associated petroleum gas. Gaslift unit comprises tubing string arranged in casing pipe, packer and well chamber. Packer is located between the gas and oil formations. Shank for oil intake is connected to the packer. Gas-lift valve and oil and gas parameters measuring transducers are arranged in the well chamber. They are connected to ground station control panel via communication cable passed through preventer sealed input. In wall of well chamber there are barbotage branch pipes for gas inlet. They are directed by the outlet end upwards into the well chamber, and by the down-side - downwards into the annular cavity between the preventer and packer. To supply gas to gas lift valve there are flow holes. Well chamber is communicated with packer barrel by docking unit.
EFFECT: simplified design and increased efficiency of gas lift unit operation.
1 cl, 2 dwg
