ʻO nā ʻāpana ʻaila niho ʻaila API no ka wili wili ʻana i loko o ka waihona

Hale hana o ka aila punawai tricone drill bits i ka waiwai me ka uku hoemi
ʻO IADC: 115 ʻo ia ka niho kila i hoʻopaʻa ʻia i ka ʻili ʻili me ka pale ana no nā hana palupalu me ka ikaika compressive haʻahaʻa.
ʻO nā kikoʻī o ka IADC115 bit ka ikaika hoʻokūkū e like me kēia:
0-35 MPA/ 0-5,000 PSI
Ka wehewehe ʻāina:
He kūpono ka bit tricone IADC115 no nā pōhaku palupalu, paʻa ʻole i hoʻopaʻa ʻia a unstratifield e like me nā limestones marl, paʻakai, gypsum, a me nā lanahu paʻa, nā pālolo i hoʻopaʻa maikaʻi ʻole ʻia a me nā pōhaku one,
Loaʻa i nā ʻāpana tricone ke ʻano o Tungsten Carbide Insert (TCI) a me Mill Tooth (Steel Tooth) e like me nā mea ʻoki.
Hiki iā lākou ke ʻoki a hiki ke ʻoki i nā ʻano hana he nui. Hoʻohana ʻia ka TCI rotary tricone bits no ka hoʻokumu ʻana a me ka paʻakikī. ʻO nā pōhaku palupalu nā one i hoʻohui ʻole ʻia, nā pālolo, nā limestone palupalu, nā ʻulaʻula a me ka shale. ʻO nā hana paʻakikī ma waena o nā dolomites, nā limestones, a me nā shale paʻakikī, ʻoiai nā hana paʻakikī e pili ana i ka shale paʻakikī, ʻoiai nā hana paʻakikī e pili ana i ka shale paʻakikī, nā pōhaku lepo, nā limestones cherty a me nā ʻano paʻakikī a abrasive.