Nā Lako Hana Hoʻopaʻa ʻEli ʻana o BHA
ʻO ka mea hoʻopaʻa wili he ʻāpana o nā lako hana i loko o ka lua lalo (BHA) o ke kaula wili. Hoʻopaʻa ia i ka BHA i loko o ka lua i mea e pale aku ai i ka neʻe ʻana i manaʻo ʻole ʻia, nā haʻalulu, a me ka hōʻoia ʻana i ka maikaʻi o ka lua e wili ʻia ana.
Ua hana ʻia ia me ke kino poepoe hakahaka a me nā pahi hoʻopaʻa, ʻelua i hana ʻia me ke kila ikaika kiʻekiʻe. Hiki i nā pahi ke pololei a i ʻole ka wili, a ua paʻakikī ke alo no ke kūpaʻa ʻana i ka ʻaʻahu.
Hoʻohana ʻia kekahi mau ʻano mea hoʻopaʻa wili ma ke kahua ʻaila i kēia lā. ʻOiai ʻo nā mea hoʻopaʻa integral (i hana piha ʻia mai kahi ʻāpana kila hoʻokahi) ke ʻano maʻamau, hiki ke hoʻohana ʻia nā ʻano ʻē aʻe, e like me:
ʻO ka mea hoʻopaʻa lima hiki ke hoʻololi ʻia, kahi e waiho ai nā pahi ma luna o kahi lima, a laila wili ʻia ma ke kino. Hiki ke hoʻokele waiwai kēia ʻano ke loaʻa ʻole nā hale hana hoʻoponopono kokoke i ka luawai e ʻeli ʻia ana a pono e hoʻohana ʻia ka ukana ea.
ʻO ka mea hoʻopaʻa pahi i hoʻopaʻa ʻia, kahi e hoʻopaʻa ʻia ai nā pahi ma ke kino. ʻAʻole ʻōlelo pinepine ʻia kēia ʻano ma nā lua wai ma muli o ka pilikia o ka nalowale ʻana o nā pahi, akā hoʻohana mau ʻia i ka wā e ʻeli ai i nā lua wai a i ʻole ma nā kahua aila haʻahaʻa ke kumu kūʻai.
ʻO ka maʻamau, hoʻokomo ʻia he 2 a 3 mau mea hoʻopaʻa i loko o ka BHA, me hoʻokahi ma luna pono o ka drill bit (near-bit stabilizer) a hoʻokahi a ʻelua paha ma waena o nā collars drill (string stabilizers).
| Lua Ka nui (i loko) | Kūlana Maʻamau Ka nui o DC (in) | Pā Hoʻokaʻaʻike (i loko) | Laulā Ka laulā (ʻīniha) | Lawaiʻa ʻĀʻī Ka lōʻihi (ʻīniha) | Laulā ʻO ka wahine ma lalo o ke kaʻa (i loko) | Ka lōʻihi holoʻokoʻa (in) | Ma kahi o Kaumaha (kgs) | |
| Kaula | Kokoke-ʻāpana | |||||||
| 6" - 6 3/4" | 4 1/2" - 4 3/4" | 16" | 2 3/16" | 28" | -1/32" | 74" | 70" | 160 |
| 7 5/8" - 8 1/2" | 6 1/2" | 16" | 2 3/8" | 28" | -1/32" | 75" | 70" | 340 |
| 9 5/8" - 12 1/4" | 8" | 18" | 3 1/2" | 30" | -1/32" | 83" | 78" | 750 |
| 14 3/4" - 17 1/2" | 9 1/2" | 18" | 4" | 30" | -1/16" | 92" | 87" | 1000 |
| 20" - 26" | 9 1/2" | 18" | 4" | 30" | -1/16" | 100" | 95" | 1800 |
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