Nā Kumu e Pili Ana i ka Maikaʻi a me ka Holomua o ka ʻEli ʻana

1. ʻOiai ʻo ka wikiwiki o ka wili ʻana o ka hui ʻana he pālua ia o ka mīkini II o ka mīkini wili, a kokoke i ʻehā manawa o ka mīkini I, he mea maʻalahi ke hoʻonui nui i ka ROP.

2. ʻO ka wikiwiki kiʻekiʻe o ka wili ʻana o ka hui ʻana he kūpono ia no nā ʻano ʻoki o ka PDC bit i ka hoʻokumu ʻana o ka shear.

3. He laumania ke ala o ka wellbore. Ma ka hoʻohui ʻana i ka ʻeli kuhikuhi a me ka ʻeli paheʻe no ka hoʻololi ʻana i ka wā, he maʻalahi ke kāohi i ke kihi dogleg a hōʻoia i ka palekana o ka downhole.

4. Ua hoʻomaʻalahi ʻia ke ʻano o ka mea hana wili. I ka wā o ka wili hui ʻana, ʻo ke kaomi wili maʻamau he <100-120kN, a hiki ke hoʻopau ʻia nā koi wili me ka liʻiliʻi a ʻaʻohe kola wili, a ua hoʻemi nui ʻia ka hiki ke hoʻopili ʻia.

5. Hoʻohui pū ka ʻāpana wili PDC kiʻekiʻe me ka mea hana wili mana e wili i nā luawai, kahi e pale ai i ka hāʻule mua ʻana o ka cone bearing i ka wikiwiki kiʻekiʻe a ʻaʻole ia e hoʻoulu i nā ulia pohō cone.

Ka Mana o nā Palena ʻEli ma ka Wikiwiki o ka ʻEli ʻana

I ka wā o ke kaʻina hana ʻeli ʻana, ʻaʻole hiki ke hoʻowahāwahā ʻia ka mana o nā palena ʻeli ma waena o nā mea hiki ke hoʻomalu ʻia ma ka wikiwiki o ka ʻeli ʻana, e like me: ke ʻano bit, ke anawaena nozzle bit, ka mana wai bit, ke kaomi bit, ka wikiwiki, ke kaomi pamu, ka neʻe ʻana, a pēlā aku. I ke ʻano o kekahi mau kūlana pahuhopu, hoʻonui pinepine ʻia ka ROP ma ka kaohi ʻana i ke kaomi ʻeli, ka wikiwiki wili, ke kaomi pamu a me ka neʻe ʻana.

Ka Hopena o ka Wai ʻEli ma ka Maikaʻi a me ka Holomua o ka ʻEli ʻana

ʻO ke koko o ka wili ʻana ke koko o ka wili ʻana, no laila he mea nui loa ka hana o ka wai wili i ka wili ʻana. ʻO nā mea nui e hoʻopilikia ana i ka ROP, ʻo ia ka mānoanoa o ka wai wili, ka nui o ka wai wili a me ka nui o ka wai paʻa i loko o ka wai wili. Ma muli o ka nui o nā ion chromium a me nā ion metala kaumaha ʻē aʻe i hoʻohana ʻia i loko o ka ʻōnaehana wai hohonu o kēia manawa, ua ʻōlelo ʻia e aʻo a hoʻopili i kahi ʻōnaehana wai wili hohonu aloha i ke kaiapuni e hoʻomaikaʻi i ka ʻōnaehana wai wili silicate i hoʻohana ʻia i kēia manawa ma kahi liʻiliʻi ma Kina. ʻO ka ʻōnaehana wili kumu Synthetic e hana i kahi moʻo wai wili pale kaiapuni hohonu e kūpono i nā kūlana geological a me ka ʻenekinia o kēlā me kēia wahi wili.