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The casing of the rotary drilling rig plays a role in protecting the hole wall during the construction process, preventing the collapse of the soil layer and ensuring the stability of the drilling hole. The use of casing can provide good support for the drilling tool, reduce the resistance in the drilling process, improve the drilling efficiency and accelerate the construction progress.

Protecting the hole wall
Improve drilling efficiency
Prevents mud contamination in the hole
Adapt to complex geological conditions
Extend the service life of the equipment
سهل التشغيل
Improvement of project quality

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