Nyob rau hauv xyoo tas los no, kev siv thev naus laus zis drilling tau nce siab heev, thiab ib qho ntawm cov kev hloov tshiab tseem ceeb uas tsav qhov kev hloov pauv no yog PDC cutter. PDC, los yog polycrystalline pob zeb diamond compact, cutters yog ib yam ntawm cov cuab yeej drilling uas siv cov pob zeb diamond thiab tungsten carbide los txhim kho kev ua tau zoo thiab du ...
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