Izici zekhola kanye nepayipi
Ikhola yokubhoboza isetshenziswa kakhulu ekuhlinzekeni izingcezu zokubhoboza ezinengcindezi edingekayo yokubhola, ukuqinisekisa ukuthi amandla okudonsa adluliselwe epayipini lokubhoboza futhi amise ibhithi lokubhola phakathi.Ngokucaciswa kwe-API Spec7-1, ikhwalithi yezinto ezibonakalayo ingu-4145H okungemva kokwelashwa kokushisa, ukwelashwa kokuqina kwentambo kanye ne-phosphate ukuze kunqandwe kangcono ukubanjwa.Ingabuye ikhiqizwe ngokwezidingo zamakhasimende.
Ikhola ye-Heavy Weight Drill iyingxenye ebalulekile yokusebenza kwe-Jcdrillamathuluzi okumba imbobo phansi.Amakholomu okugaya ahlinzeka ngesisindo kubhithi yokubhoboza ngokusebenzisa ukwakheka.Ama-Rig drillers ayakwazi ukuqapha isisindo esisetshenziswa kubhithi ngokuqapha ngokusebenzisa izibalo ezilula, kanye nesilinganiso senkomba yesisindo, esitezini sokusebenza.Amakholomu okugaya ngokuvamile angamafidi angu-31 ubude, agqinsile anezindonga, nensimbi enzima.Ziza ebhokisini ngephini ezinokuxhumana okufanayo, ukuze zihlangane njengoba kudingeka, ukuze kuzuzwe isisindo esifiselekayo.Amakholomu okubhoboza afika e-OD eshelelayo, noma enziwe ngomshini onemihosha ene-helical (amakholomu asondeziwe).I-Jink igcina ukutholakala okuningi kwamakholomu e-carbon steel drill esitokweni.I-Lead Collar Lead inhloso iwukubeka inani elifushane lendawo phakathi kwebhithi yokumba, kanye ne-bit stabilizer eduze.Lena enye indlela i-Jcdrill ekunikeza ngayo amandla okulungisa izidingo zakho zokusebenza njengoba kuphakama izinselelo ze-down hole.Ngokungeza lesi sikhala esifushane phakathi kwe-bit, kanye ne-bit stab, uqinisa i-BHA wright kancane, wehlisa ukuhamba kancane, ngakho-ke, uthuthukisa imbobo eqondile.I-Jcdrill igcina ukutholakala okuningi kwamakholomu okuhola ensimbi ye-carbon esitokweni.
m | |||||
Idizayini | O | D | ID | Ubude | I-Chamfer Diameter |
in | mm | + 1.6-0.0mm | + 152.4mm | +0.4mm | |
I-NC23-31 | 3 1/8 | 79.4 | 31.8 | 9.15 | 76.2 |
I-NC26-35 | 3 1/2 | 88.9 | 38.1 | 9.15 | 82.9 |
I-NC31-41 | 4 1/8 | 104.8 | 50.8 | 9.159.45 | 100.4 |
NC35-47 | 4 3/4 | 120.7 | 50.8 | 9.159.45 | 114.7 |
NC38-50 | 5 | 127 | 57.2 | 9.159.45 | 121 |
I-NC44-60 | 6 | 152.4 | 57.2 | 9.159.45 | 144.5 |
I-NC44-60 | 6 | 152.4 | 71.4 | 9.159.45 | 144.5 |
I-NC44-62 | 6 1/4 | 158.8 | 57.2 | 9.159.45 | 149.2 |
I-NC44-62 | 6 1/4 | 158.5 | 71.4 | 9.159.45 | 150 |
I-NC46-65 | 6 1/2 | 165.1 | 57.2 | 9.159.45 | 154.8 |
I-NC46-65 | 6 1/2 | 165.1 | 71.4 | 9.159.45 | 154.8 |
I-NC46-67 | 6 3/4 | 171.5 | 57.2 | 9.159.45 | 159.5 |
NC50-70 | 7 | 177.8 | 57.2 | 9.159.45 | 164.7 |
NC50-70 | 7 | 177.8 | 71.4 | 9.159.45 | 164.7 |
I-NC50-72 | 7 1/4 | 184.2 | 71.4 | 9.159.45 | 169.5 |
I-NC56-77 | 7 3/4 | 196.9 | 71.4 | 9.159.45 | 185.3 |
I-NC56-80 | 8 | 203.2 | 71.4 | 9.159.45 | 190.1 |
6 5/8REG | 8 1/4 | 209.6 | 71.4 | 9.159.45 | 195.7 |
I-NC61-90 | 9 | 228.6 | 71.4 | 9.159.45 | 212.7 |
7 5/8REG | 9 1/2 | 241.3 | 76.2 | 9.159.45 | 223.8 |
I-NC70-97 | 9 3/4 | 247.7 | 76.2 | 9.159.45 | 232.6 |
I-NC70-100 | 10 | 254 | 76.2 | 9.159.45 | 237.3 |
8 5/8REGc | 11 | 279.4 | 76.2 | 9.159.45 | 266.7 |