Collar lan Pipa Fitur
Kolar pengeboran utamane digunakake kanggo nyediakake bit pengeboran kanthi tekanan pengeboran sing dibutuhake, mesthekake kekuwatan tarik ditularake menyang pipa pengeboran lan pusatake bor.Miturut spesifikasi API Spec7-1, kualitas materi yaiku 4145H sing sawise perawatan panas, perawatan hardening benang lan fosfat kanggo anti-nyita luwih apik.Uga bisa diprodhuksi miturut syarat pelanggan.
Iker-iker rasukan Drill Bobot abot minangka bagéyan penting saka kinerja Jcdrillalat pengeboran bolongan mudhun.Kolar pengeboran nyedhiyakake bobot kanggo ngebur liwat formasi.Rig drillers bisa kanggo ngawasi bobot Applied kanggo dicokot dening ngawasi liwat petungan prasaja, lan ukuran indikator bobot, ing lantai rig.Kolar pengeboran biasane dawane 31 kaki, tembok tebal, lan baja abot.Padha teka kothak dening pin karo sambungan kaya, supaya mate minangka akeh needed, kanggo entuk bobot dikarepake.Kolar pengeboran teka OD sing licin, utawa mesin nganggo alur heliks (kerah spiral).Jink nyedhiyakake pasokan kerah pengeboran baja karbon sing akeh.Lead Collar Lead collars tujuane kanggo nyelehake jarak sing cendhak ing antarane bit pengeboran, lan stabilizer sing cedhak.Iki mung cara liyane Jcdrill menehi kemampuan kanggo ngapiki kabutuhan kinerja minangka tantangan bolongan mudhun.Kanthi nambahake jarak sing cendhak ing antarane bit, lan cedhak stab, sampeyan bisa ngencengi BHA wright ing bit, nyuda bit walk, mulane, mromosikake bolongan sing luwih lurus.Jcdrill nyedhiyakake pasokan baja karbon sing akeh.
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Desain | O | D | ID | Lengh | Diameter Chamfer |
in | mm | + 1,6-0,0 mm | +152,4 mm | +0,4 mm | |
NC23-31 | 3 1/8 | 79.4 | 31.8 | 9.15 | 76.2 |
NC26-35 | 3 1/2 | 88.9 | 38.1 | 9.15 | 82.9 |
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 |
NC44-60 | 6 | 152.4 | 57.2 | 9.159.45 | 144.5 |
NC44-60 | 6 | 152.4 | 71.4 | 9.159.45 | 144.5 |
NC44-62 | 6 1/4 | 158.8 | 57.2 | 9.159.45 | 149.2 |
NC44-62 | 6 1/4 | 158.5 | 71.4 | 9.159.45 | 150 |
NC46-65 | 6 1/2 | 165.1 | 57.2 | 9.159.45 | 154.8 |
NC46-65 | 6 1/2 | 165.1 | 71.4 | 9.159.45 | 154.8 |
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 |
NC50-72 | 7 1/4 | 184.2 | 71.4 | 9.159.45 | 169.5 |
NC56-77 | 7 3/4 | 196.9 | 71.4 | 9.159.45 | 185.3 |
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 |
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 |
NC70-97 | 9 3/4 | 247.7 | 76.2 | 9.159.45 | 232.6 |
NC70-100 | 10 | 254 | 76.2 | 9.159.45 | 237.3 |
8 5/8REGc | 11 | 279.4 | 76.2 | 9.159.45 | 266.7 |