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Spiral Drill Collar
Posted at: Offers to Sell and Export
Targeted Countries: Canada
Posted on: Fri 16 Jan, 2009 6:44 am
Design & working procedure Conform to the requirment of API Spec 7
Non-API standard type of drill collars are also avalible as per client'request
Cold-rolled thread roots
Thread connections are performed with stress relief grooves
phosphated.threads applied
Drill Collar Number Outside Diameter Inside Diameter Length
mm Bevel Diameter Rebend g Strength ratio
mm in mm in
Nc23-31 79.4 3 1/8 31.8 1 1/2 9150 76.2 2.57 :1
Nc26-35(2 3/8 if) 88.9 3 1/2 38.1 1 1/2 9150 82.9 2.42 :1
Nc31-41(2 7-8 if) 104.8 4 1/8 50.8 2 9150 100.4 2.43 :1
Nc35-47 120.6 4 3/4 50.8 2 9150 114.7 2.58 :1
Nc38-50(3 1/2 if) 127.0 5 57.2 2 1/4 9150 121.0 2.38 :1
NC44-60 152.4 6 57.2 2 1/4 9150&9450 144.5 2.49 :1
NC44-60 152.4 6 71.4 2 13/16 9150&9450 144.5 2.84 :1
NC44-62 158.8 6 1/4 57.2 2 1/4 9150&9450 149.2 2.91 :1
NC46-62(4IF) 158.8 6 1/4 71.4 2 13/16 9150&9450 150.0 2.63 :1
NC46-65(4IF) 165.1 6 1/2 57.2 2 1/4 9150&9450 154.8 2.76 :1
NC46-65(4IF) 165.1 6 1/2 71.4 2 13/16 9150&9450 154.8 3.05 :1
NC46-67(4IF) 171.4 6 3/4 57.2 2 1/4 9150&9450 159.5 3.18 :1
NC50-67(4 1/2 IF) 171.4 6 3/4 71.4 2 13/16 9150&9450 159.5 2.37 :1
NC50-70(4 1/2 IF) 177.8 7 57.2 2 1/4 9150&9450 164.7 2.54 :1
NC50-70(4 1/2 IF) 177.8 7 71.4 2 13/16 9150&9450 164.7 2.73 :1
NC50-72(4 1/2 IF) 184.2 7 1/4 71.4 2 13/16 9150&9450 169.5 3.12 :1
NC56-77 196.8 7 3/4 71.4 2 13/16 9150&9450 185.3 2.70 :1
NC56-80 203.2 8 71.4 2 13/16 9150&9450 190.1 3.02 :1
6 5/8 REG 209.6 8 1/4 71.4 2 13/16 9150&9450 195.7 2.93 :1
NC61-90 228.6 9 71.4 2 13/16 9150&9450 212.6 3.17 :1
7 5/8 REG 241.3 9 1/2 76.2 3 9150&9450 223.8 2.81 :1
NC70-97 247.6 9 3/4 76.2 3 9150&9450 232.8 2.57 :1
NC70-100 254 10 76.2 3 9150&9450 237.3 2.81 :1
8 5/8 REG 279.4 11 76.2 3 9150&9450 266.7 2.84 :1
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Company Contact:
Contact Name: Dean
Company Name: Tianhe
Email: 
Tel: 0086-453-5079979 or 86 453 6558966
Fax: 0086-453-6531608
Street Address: Adress: No43, Diming St,
Mudanjiang City, Helongjiang Province,
PR China, Post Code: 157011
Website: http://www.tianheoil.com/english
Member name: MACHINERYEXPORTER
Country:  China
Member Since: 21 January 2010
Total Leads: 5
Business focus: Oilfeild Equipment, Drill Collar, Stabilizer, Hw Drill Pipe, Taper Tap, Die Collar, Spear, Overshot, Junk Mill, Roller Reamer, Drilling Jar, Absorbers
  
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