| 摘要 |
<p>The inventive device for flow and liftgas production of oil-wells relates to the recovery of gas-liquid mixtures, in particular of gasified oil, and can be used for wells having a natural blowout of a producing feature or for an artificial injection of compressed gas for lifting a liquid. Said device is arranged inside the oilwell tubing and fitted with a unit modifying the structure of a gas-liquid flow. According to the first version, said unit is embodied in the form of at least one ball. The ball diameter and mass are selected in terms according to the velocity of the gas-liquid flow. The ball diameter ranges between 0.8 and 0.9 of an internal diameter of the tubes of the oilwell tubing. According to the second version, the unit modifying the structure of a gas-liquid flow is embodied in the form of at least one element representing plugs having a ratio between a maximum diameter and the internal diameter of the oilwell tubing not exceeding 0.9. The plug-element can move in radial and axial directions and is beaded to a carrying suspension embodied in the form of a cable or a rod assembly. The axial movement of the plug-element is constrained within the range of delimiters. The inventive device increases the performance factor of liquid lifting in wells.</p> |
