Patent ID: 11898414
Assignee: ANTON BAILIN OILFIELD TECHNOLOGY (BEIJING) CO., LTD
Field: Civil engineering (Other fields)
Classification: CPC C  E | IPC C  E

Claim 4:
5. The method for filling an oil and gas well of a fractured oil and gas reservoir with pack-off particles to reduce water and increase oil production according to claim 1, wherein full filling of the pack-off particles in the annular space can be determined as follows:
when the filling liquid is injected at a constant rate, continuously measuring the pressure in the well until the pressure in the well increases to a set pressure, then determining that the annular space is fully filled with the pack-off particles; or
when the filling liquid is injected at a constant pressure, continuously measuring the flow rate of the filling liquid until the flow rate decreases to a set flow rate, then determining that the annular space is fully filled with the pack-off particles.