Sesebelisoa sa ho Cheka sa ho Tsitsisa Metsi a Tlase sa BHA
Sesebelisoa sa ho tjheka ke sesebelisoa sa ho tjheka se sebediswang kopanong ya lesoba le ka tlase (BHA) ya thapo ya ho tjheka. Se tsitsisa BHA ka hara lesoba ka boqhetseke e le ho qoba ho kgelosa tsela ka boomo, ho thothomela, le ho netefatsa boleng ba lesoba le tjhekwang.
E entsoe ka 'mele o se nang letho o kang selika-likoe le mahare a tsitsitseng, ka bobeli a entsoe ka tšepe e matla haholo. Mahare a ka ba a otlolohileng kapa a kobehileng, 'me a thatafetse bakeng sa ho hanyetsa ho tsofala.
Mefuta e 'maloa ea li-stabilizer tsa ho cheka e sebelisoa lefapheng la oli kajeno. Leha li-stabilizer tsa integral (tse entsoeng ka botlalo ka tšepe e le 'ngoe) e le tloaelo, mefuta e meng e ka sebelisoa, joalo ka:
Sehatsetsi sa matsoho se ka nkeloang sebaka, moo mahare a leng teng hodima letsoho, ebe se tlangwa ka dikurufu mmeleng. Mofuta ona o ka ba theko e tlase ha ho se na disebediswa tsa tokiso tse fumanehang haufi le seliba se tjhekilweng mme ho tlameha ho sebediswa thepa ya moya.
Sehatsetsi sa mahare a tjheseditsweng, moo mahare a tjheselletswang mmeleng. Mofuta ona hangata ha o eletswe didibeng tsa oli ka lebaka la dikotsi tsa ho lahlehelwa ke mahare, empa o sebediswa kgafetsa ha ho tjhekwa didibeng tsa metsi kapa masimong a oli a theko e tlase.
Hangata ho kenngwa di-stabilizer tse 2 ho isa ho tse 3 ka hara BHA, ho kenyeletswa e nngwe e ka hodimo hanyane ho drill bit (stabilizer e haufi le bit) le e le nngwe kapa tse pedi hara dikholara tsa drill (di-stabilizer tsa thapo)
| Lesoba Boholo (ka hare) | E tloaelehileng Boholo ba DC (ka hare) | Lebota Ikopanye (ka hare) | Lehare Bophara (ka hare) | Ho tšoasa litlhapi Molala Bolelele (ka hare) | Lehare Ka tlase ho tekanyo (ka hare) | Bolelele bo Akaretsang (ka hare) | Hoo e ka bang Boima (lik'hilograma) | |
| Khoele | Haufi le hanyane | |||||||
| 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 |
Lihlahisoa tse amanang
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