Low-pressure low-yield oil and gas well yield increasing device and process

The device comprises a production pipe column, an oil and gas well mouth and well mouth flow equipment, a slug generator is arranged in the production pipe column, a controller is installed on the production pipe column or the well mouth flow equipment, the slug generator forms an oil and gas column and a liquid column in the production pipe column, and the oil and gas column is connected with the controller. The controller is used for controlling the upward moving speed of the oil and gas column from the well bottom to the well mouth. By reducing the pressure of a liquid column in a shaft, oil gas continuously enters the shaft from a stratum, the liquid column and the oil gas in the shaft form a slug and continuously flow to a wellhead from the bottom hole, the oil gas rapidly expands in the rising process, the flowing pressure of the bottom hole is reduced, the oil gas rapidly enters the wellhead flow, and the purposes of liquid drainage and yield increase are achieved. 本发明涉及一种低压低产油气井增产装置及工艺，其装置包括生产管柱、油气井口和