Pansi pa dzenje dth sd mission 6" nyundo ndi mtengo pang'ono
Muzinthu zina, monga kubowola maziko, nyundo za DTH zitha kugwiritsidwa ntchito ndi kabowo kakang'ono mpaka .750 mm (30 ″).Ndi mayunitsi angapo a nyundo CD (Cluster kubowola) kubowola mpaka 70 ″ kapena 1778 mm.
Monga lamulo la chala chachikulu, kabowo kakang'ono kwambiri komwe nyundo ya DTH imatha kubowola ndi kukula kwake mwadzina.Nyundo ya mainchesi 4 ibowola dzenje la mainchesi 4 (102 mm).Cholepheretsa ndi kukula kwakunja kwa nyundo, chifukwa, momwe bowo limacheperachepera, mpweya umachepa.Kukula kwakukulu kwa dzenje pobowola ndi kukula kwa nyundo mwadzina kuphatikiza inchi imodzi, kotero pa nyundo ya inchi 4 kukula kwake kwakukulu ndi mainchesi asanu (127-130 mm).
Kusankha nyundo yoyenera kumatsimikiziridwa ndi kukula kwa dzenje ndi mtundu wa mapangidwe a miyala.Moyenera, kukula kwa nyundo kuyenera kufanana ndi dzenje lofunikira kwambiri momwe kungathekere, kusiya malo okwanira kuti ma cuttings atulutse dzenjelo.
Chitsanzo | Kugwirizana kwa Ulusi | OD(mm) | Rec.Hole Kukula | Shank Style | Kupanikizika kwa Ntchito (Bar) |
CD35 | API 2 3/8" Reg | φ82 mm | φ90-φ105 | DHD3.5 CD35 | 1.0-1.5Mpa |
CD45 | API 2 3/8" Reg | φ99 mm | φ110-φ135 | Cop44 Chithunzi cha DHD340 CD45 | 1.0-2.5Mpa |
Chithunzi cha CSD4 | API 2 3/8" Reg | φ99 mm | φ110-φ135 | SD4 Chithunzi cha CSD4 | 1.0-2.5Mpa |
Mtengo wa CQL40 | API 2 3/8" Reg | φ99 mm | φ110-φ135 | QL40 Mtengo wa CQL40 | 1.0-2.5Mpa |
CD55 | API 2 3/8" Reg API 3 1/2" Reg | 125 mm | φ135-φ155 | Cop54 Chithunzi cha DHD350R CD55 | 1.0-2.5Mpa |
Chithunzi cha CSD5 | API 3 1/2" Reg | 125 mm | φ135-φ155 | SD5 Chithunzi cha CSD5 | 1.0-2.5Mpa |
Mtengo wa CQL50 | API 3 1/2" Reg | 125 mm | φ135-φ155 | Cop54 QL50 Mtengo wa CQL50 | 1.0-2.5Mpa |
CD65 | API 3 1/2" Reg | 148mm | φ155-φ190 | Cop64 Chithunzi cha DHD360 CD65 | 1.0-2.5Mpa |
Chithunzi cha CSD6 | API 3 1/2" Reg | 148mm | φ155-φ190 | SD6 Chithunzi cha CSD6 | 1.0-2.5Mpa |
Mtengo wa CQL60 | API 3 1/2" Reg | 148mm | φ155-φ190 | Cop64 QL60 Mtengo wa CQL60 | 1.0-2.5Mpa |
CD85 | API 4 1/2" Reg | 185 mm | φ195-φ254 | Cop84 Chithunzi cha DHD380 CD85 | 1.0-2.5Mpa |
Chithunzi cha CSD85 | API 4 1/2" Reg | 185 mm | φ195-φ254 | SD8 ndi Chithunzi cha CSD8 | 1.0-2.5Mpa |
Mtengo wa CQL80 | API 4 1/2" Reg | 185 mm | φ195-φ254 | QL80 Mtengo wa CQL80 | 1.0-2.5Mpa |
Chithunzi cha CSD10 | API 4 1/2" Reg API 5 1/2" Reg API 6 5/8" Reg | φ225 mm | φ254-φ311 | SD10 Chithunzi cha CSD10 | 1.0-2.5Mpa |
Chithunzi cha CN100 | API 6 5/8" Reg | φ225 mm | φ254-φ311 | NUMA100 Chithunzi cha CN100 | 1.0-2.5Mpa |
Chithunzi cha CSD12 | API 6 5/8" Reg | φ275 mm | φ305-φ445 | Chithunzi cha SD12 Chithunzi cha CSD12 | 1.0-2.5Mpa |