PDC Bit and tricone bit are used for oil well drilling, gas well drilling, geothermal well drilling, mining, geological survey, hydrographic survey, water well drilling, HDD pipelines projects, foundation projects.
But how to choose the suitable drill bit?Now let us help to choose the suitable drill bits for you.
1.What is the difference?
The most straightforward difference is that there is no moving part in PDC Bit. Their structure as below:
Tricone bits consist of three “cones” which must all rotate on lubricated bearings. This lubrication in turn requires a grease reservoir and for any medium or large scale project some sort of bearing seal to prevent debris from entering the tricone and stopping rotation.
PDC fixed cutter bits are solid and consist of no moving parts. PDC bits are made by combining fine grained artificial diamonds and tungsten carbide under extremely high heat and pressure.
PDC & Tricone cutting type is different as well. PDC is shearing the rock while tricone is grouping, crushing.
Tricone bit requires relative higher WOB to perform good. Otherwise its inserts may premature wearout.
2.Advantage of PDC bit & tri-cone bit
3.Conclusion
PDC is idea choice for some formation condition. It works well in consolidated, homogeneous rock, such as shale, sandstone, limestone, sand, clay.
When your rock as about mentioned, you can try out PDC bit as a fast, safe, rebultable ( low cost in long run) solution.
Otherwise, Tricone is your better option.
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