On March 2021, 3, the GFBQJ26-800/30-200.6 pipe auxiliary mixing and pressurization unit was successfully put into operation in the Great Shallow Five Well of PetroChina Southwest Branch.

After the device was put into operation, the well changed from intermittent well opening production to 24-hour continuous production, and the gas production increased from the original 1300Nm 3/d to 5800Nm3/d, creating an annual comprehensive benefit of more than 200 million yuan. The successful commissioning of the pipe-auxiliary mixing and conveying device in the five wells indicates that the device has unique technical advantages and cost performance in the old abandoned wells and flooded wells in the gas field, the negative pressure gas production, natural gas pressurization and dryness, etc.