Use of Single Hydraulic Props
The single hydraulic props used in the underground must be guaranteed to be in good condition, and the three-way valve is closed and the three-way valve inlet hole is blocked. Before going down the well, pressure and performance tests must be done on the ground. If the pillars are not qualified, it is strictly forbidden to use.
Recycling of Single Hydraulic Props
The single hydraulic props used by each unit need to be repaired, and the wells should be organized within 2 days after the replacement or the maintenance period expires.
When the single hydraulic props stored at each unit's work site are no longer in use, the well should be organized within 2 days.
