When running casing in gravel layers,
a key step for well quality,
issues like incomplete setting or resistance often occur.water well drilling rig
Before casing running, conduct hole cleaning to remove sediment and obstacles. Select casing specification and material based on hole diameter and strata to ensure strength and sealing.
- Adopt a segmented running method: After each casing segment, perform cementing promptly to prevent sinking or tilting.
- If resistance occurs, release it by rotating/lifting the casing or injecting lubricating mud—avoid forced running to prevent damage.
- Ensure the casing reaches the design depth smoothly by checking hole conditions and adjusting running techniques in real time.water well drilling rig
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