Hoʻokomo ʻia ʻo Tungsten Carbide i nā ʻāpana ʻōwili no nā Pōhaku Piling Rotary Drilling Bcket

Hoʻohana ʻia nā cones ʻo IADC537G no nā ʻano palupalu a me ka ikaika compressive haʻahaʻa, e like me ka pōhaku lepo, gypsum, paʻakai, limstone palupalu, etc.

ʻO IADC537 ke kumu hoʻohālike maʻamau i ka māla ʻaila ʻaila e kona kiʻekiʻe o ka haki ʻana o ka pōhaku e mālama ai i ka rig a me ka uku hana, i ka manawa mua o ka hoʻokumu ʻana i ke kumu, nā lima ʻelua (kahiko) roller cones mai 8 1/2 "tricone bit ka mea kaulana. ʻO ke kumu hoʻohālike no ke kūkulu ʻana i ka bakeke wili wili, ʻo kahi ʻano huila maikaʻi maikaʻi ke kumu nui no ke ola hana o ka rotary drilling bucket, ʻo ke koho ʻana i nā mea paahana maikaʻi loa e mālama i ka rig a me ka uku hana no ka noi ʻana.