I-Drilling Stabilizer Imishini Yokubhoboza Emgodini We-BHA
Isiqinisi sokubhoboza siyithuluzi lokufaka imbobo engezansi elisetshenziswa ekuhlanganisweni kwembobo engezansi (i-BHA) yentambo yokubhoboza. Lizinzisa ngomshini i-BHA emgodini ukuze ligweme ukuphambuka okungahlosiwe, ukudlidliza, nokuqinisekisa ikhwalithi yomgodi obhobozwayo.
Yakhiwe ngomzimba oyisilinda ongenalutho kanye nama-blade aqinisayo, womabili enziwe ngensimbi enamandla amakhulu. Ama-blade angaba aqondile noma ajikelezwe, futhi aqinile ukuze amelane nokuguguleka.
Izinhlobo eziningana zeziqinisi zokubhoboza zisetshenziswa emkhakheni kawoyela namuhla. Nakuba iziqinisi ezihlanganisiwe (ezifakwe ngokuphelele ensimbini eyodwa) zivame ukuba yinto evamile, ezinye izinhlobo zingasetshenziswa, njenge:
Isiqinisi semikhono esingashintshwa, lapho ama-blade etholakala khona esikhisini, esibe sesifakwa ngezikulufo emzimbeni. Lolu hlobo lungaba longa imali uma kungekho zindawo zokulungisa ezitholakala eduze kwendawo ebholiwe futhi kudingeka kusetshenziswe imithwalo yendiza.
Isiqinisi sama-blade ahlanganisiwe, lapho ama-blade ehlanganiswa khona emzimbeni. Lolu hlobo aluvame ukwelulekwa emithonjeni yamafutha ngenxa yezingozi zokulahlekelwa ama-blade, kodwa lusetshenziswa njalo lapho kubholwa imithombo yamanzi noma ezindaweni zikawoyela ezingabizi kakhulu.
Ngokuvamile kufakwa iziqinisi ezimbili kuya kwezingu-3 kwi-BHA, kufaka phakathi eyodwa engenhla nje kwe-drill bit (i-near-bit stabilizer) kanye nenye noma ezimbili phakathi kwama-drill collars (iziqinisi zezintambo)
| Imbobo Usayizi (ngaphakathi) | Okujwayelekile Usayizi we-DC (ngaphakathi) | Udonga Xhumana (ngaphakathi) | I-blade Ububanzi (ngaphakathi) | Ukudoba Intamo Ubude (ngaphakathi) | I-blade Ingaphansi kwegajethi (ngaphakathi) | Ubude obuphelele (ngaphakathi) | Cishe Isisindo (amakhilogremu) | |
| Intambo | I-Near-bit | |||||||
| 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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