E holoi i nā kāmaʻa
Hoʻolālā no ka ROP kiʻekiʻe aʻe i ka ʻeli ʻana i nā papa hohonu a paʻakikī hoʻi, drill bit PDC drill mai ka honua a lalo i lalo me ka liʻiliʻi a i ʻole hoʻokahi holo, e mālama nei i ka nui o ka manawa drill a me ke kumukūʻai.
ʻOkoʻa mai ka tricone bit, holo ʻo PDC drill bit me WOB haʻahaʻa akā ʻo Higher RPM, no laila hana maʻamau me ka motika downhole e kiʻi i ka wikiwiki wikiwiki.
ʻO ka hana o PDC drill bit hilinaʻi nui i nā mea ʻoki PDC, hāʻawi mākou i kahi hopena kūikawā i ke koi kikoʻī ma nā ʻano ʻano like ʻole.
ʻO kahi mea lawaiʻa kōkua i hoʻohana ʻia e wili i kahi paipu kalaiwa kūpono ʻole, casing, a i ʻole mea e hāʻule ana ma lalo o ka luawai. Hoʻohana ʻia kahi kāmaʻa wili pear-like a i ʻole milling cone e hoʻoponopono i kahi casing a i ʻole drill i pālahalaha ʻia. Rod. Hiki ke hoʻohana ʻia nā kāmaʻa wili Cylindrical e hoʻolima i ka hoʻokumu ʻana o ka ʻeli ʻia o ke aho drill no nā hana hoʻopakele.
ʻO nā kāmaʻa daimana i hana ʻia e nā kāmaʻa milling milling he finer a koi aku i nā mea ʻoi aku ka liʻiliʻi no ka holoi ʻana.
Ma muli o ka liʻiliʻi o ka ʻōpala, ʻo ka wikiwiki haʻahaʻa wale nō ke koi ʻia e hoʻomaʻemaʻe i ka luawai.
He lōʻihi kona ola lawelawe a hiki ke hōʻemi i ka nui o nā huakaʻi.
He kiko waena ko ka bit drag, me ka liʻiliʻi ʻekolu, akā ʻewalu a ʻekolu mau ʻoki ʻekolu triangular. ʻO nā ʻoki ʻoki o nā mea āpau a i ʻole ka hapa o ka helu o nā niho o ka bit e kū i ka hopena o mua o ka liʻiliʻi. ʻO nā ʻoki ʻoki ʻē aʻe i mua ke alo o ke aho drill, i hiki ai ke hoʻohana ʻia ka liʻiliʻi i ka neʻe ʻana i nā ʻaoʻao ʻelua.
Hoʻonohonoho ʻia no ka hoʻohana ʻana i nā hana palupalu e like me ke one, pālolo a i ʻole kekahi ʻano o ka pōhaku palupalu. A huki i nā ʻāpana i hana ʻia me nā niho ʻoihana tungsten hiki ke hoʻomaikaʻi i ka hana i nā hana pōhaku paʻakikī.
