Active Member
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Address: Nanyi Road No.228,Dongying City, Shandong Province, China
Phone: 86-0546-7766986
Contact name:Miss. Grace
Dongying Kangyu petroleum Engineering Technology Service Co.,Ltd |
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Non-magnetic drill collars
According to API Spec.7 and SY/T5144, the non-magnetic drill collars are made of low carbon stainless steel.
All threads are cold rolled, and they are machined with CNC Lathes –Double –shouldered, including some special threads.
The mechanical properties and corrosion resistance completely meet API standard, and the collars hve the characteristics of strong intensity and toughness.
Technical 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 |
More information,please feel free to contact me:
Grace Sun
Mob:+86 18254659971(whatsapp and viber)
Skype:sunping7766986
Wechat:sp1987809554
