- Separation Equipment[3]
- Other Mechanical Parts[6]
- Pumps[10]
- Other Machinery[2]
- Bolts[7]
- Drill Bit[8]
- Cylinders[1]
- Other Rubber Products[4]
- Seals[1]
- Mining Machinery Parts[4]
- Contact Person : Ms. Li Heqin
- Company Name : Puyang City Qili Petroleum Mechanical Equipment Co., Ltd.
- Tel : 86-393-4816069
- Fax : 86-393-4827626
- Address : Henan,Puyang,North Section Of Jingkai Road
- Country/Region : China
API 7-1spiral drill collar
Spiral drill collar are manufactured strictly from API Spec.7 andNS-1 standard.HSE .
Specification
Connections | OD mm | ID mm | Length mm | |
NC23-31 | 79.4 | 31.8 | 9150 | |
NC26-35 | 88.9 | 38.1 | 9150 | |
NC31-41 | 104.8 | 50.8 | 9150 or 9450 | |
NC35-47 | 120.7 | 50.8 | 915 or 9450 | |
NC38-50 | 127.0 | 57.2 | 9150 or 9450 | |
NC44-60 | 152.4 | 57.2 | 9150 or 9450 | |
NC44-60 | 152.4 | 71.4 | 9150 or 9450 | |
NC44-62 | 158.8 | 57.2 | 9150 or 9450 | |
NC46-62 | 158.8 | 71.4 | 9150 or 9450 | |
NC46-65 | 165.1 | 57.2 | 9150 or 9450 | |
NC46-65 | 165.1 | 71.4 | 9150 or 9450 | |
NC46-67 | 171.4 | 57.2 | 9150 or 9450 | |
NC50-67 | 171.4 | 71.4 | 9150 or 9450 | |
NC50-70 | 177.8 | 57.2 | 9150 or 9450 | |
NC50-70 | 177.8 | 71.4 | 9150 or 9450 | |
NC50-72 | 184.2 | 71.4 | 9150 or 9450 | |
NC56-77 | 196.8 | 71.4 | 9150 or 9450 | |
NC56-80 | 203.2 | 71.4 | 9150 or 9450 | |
6 5/8REG | 209.6 | 71.4 | 9150 or 9450 | |
NC61-90 | 228.6 | 71.4 | 9150 or 9450 | |
7 5/8REG | 241.3 | 76.2 | 9150 or 9450 | |
NC70-97 | 247.6 | 76.2 | 9150 or 9450 | |
NC70-100 | 254.0 | 76.2 | 9150 or 9450 | |
8 5/8REG | 279.4 | 76.2 | 9150 or 9450 | |
API 7-1spiral drill collar
