I-Drilling Stabilizer Downhole Equipment ye-BHA
I-drilling stabilizer ucezu lwempahla yembobo ephansi esetshenziswa ekuhlanganiseni kwembobo engezansi (BHA) yentambo yokubhoboza. Izinzisa i-BHA emgodini ukuze kugwenywe ukuchezuka okungahlosiwe, ukudlidliza, nokuqinisekisa ikhwalithi yembobo ebholwayo.
Yakhiwe ngomzimba oyi-cylindrical ongenalutho kanye nezindwani zokuzinzisa, zombili ezenziwe ngensimbi yokuqina okuphezulu. Ama-blades angaba aqondile noma asontekile, futhi anobuso obuqinile bokumelana nokugqoka.
Izinhlobo eziningana zokumba izinza ezisetshenziswa endaweni kawoyela namuhla. Nakuba iziqinisi ezibalulekile (ezikhishwe ngomshini ocezu olulodwa lwensimbi) zivame ukuba yinsakavukela, ezinye izinhlobo zingasetshenziswa, njenge:
I-stabilizer ye-sleeve eshintshwayo, lapho izindwani zitholakala kumkhono, obese ugoqwa emzimbeni. Lolu hlobo lungakwazi ukonga lapho zingekho izindawo zokulungisa ezitholakala eduze nendawo yokubhobolwa futhi kufanele kusetshenziswe izimpahla zomoya.
Ama-Welded blades stabilizer, lapho izindwani zishiselwa khona emzimbeni. Lolu hlobo ngokuvamile alwelulekwa emithonjeni kawoyela ngenxa yezingozi zokulahlekelwa ama-blade, kodwa lusetshenziswa njalo lapho kumbiwa imithombo yamanzi noma ezindaweni zikawoyela ezingabizi kakhulu.
Ngokuvamile izinza ezi-2 kuya kwezi-3 zifakwa ku-BHA, kuhlanganise neyodwa engaphezulu nje kwe-drill bit (near-bit stabilizer) kanye neyodwa noma amabili phakathi kwamakholomu okubhoboza (izinzamisi zezintambo)
| Imbobo Usayizi (ngaphakathi) | Okujwayelekile DC Usayizi (in) | Udonga Oxhumana naye (ku) | Blade Ububanzi (ngaphakathi) | Ukudoba Intamo Ubude (in) | Blade I-Undergage (in) | Ubude Babo bonke (in) | Cishe Isisindo (kgs) | |
| Intambo | Eduze kancane | |||||||
| 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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