Analysis of the Causes of Stuck drilling in Sand and Gravel Layer Water Well Drilling RIGS and Methods to solve the problem

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In gravel layers, pipe sticking accidents often occur during construction. During drilling, gravel collapse, cuttings accumulation, or excessive tool depth can stick the drilling tool, delaying the project and damaging equipment.water well drilling rig

 

Before releasing the stuck tool, accurately identify the sticking type. For sand settling sticking, circulate mud at high flow to flush out sand with mud force. For collapse sticking, inject high-viscosity mud to stabilize the hole wall first, then gently lift and slowly rotate the tool.

  1. Use jarring sticking release: Generate impact with a jar to loosen the stuck tool.
  2. Apply milling sticking release: Use a milling pipe to enclose the stuck tool and mill surrounding debris.
  3. Prevent sticking by controlling drilling speed/depth, maintaining good mud performance, and cleaning cuttings timely.water well drilling rig