Factory price hot sale medical portable oxygen concentrator machine
US $109.00-$149.00
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Product name | Drill Collar |
Type | Slick Drill Collar , Spiral Drill Collar , Non-magnetic Drill Collar |
Size | 3 1/8" -14" |
Spiral drill collar material | AISI4145H |
Slip and/or elevator recess | As per request |
Stress relief and bore back | As per request |
Hardbanding | As per request |
Length | 20ft/30ft/31ft |
Standard | API 7-1 |
O.D | I.D | Connection | Length | Bevel Diameter | Bending strength ratio | ||||
mm | inch | mm | inch | Connection | ft | mm | |||
79.4 | 3 1/8 | 31.8 | 1 1/4 | NC23-31 | 20ft/30ft/31ft | 76.2 | 2.57:1 | ||
88.9 | 3 1/2 | 38.1 | 1 1/2 | NC26-35(2 3/8 IF) | 20ft/30ft/31ft | 84.5 | 2.42:1 | ||
104.8 | 4 1/8 | 50.8 | 2 | NC31-41(2 7/8 IF) | 20ft/30ft/31ft | 101.6 | 2.43:1 | ||
120.6 | 4 3/4 | 50.8 | 2 | NC35-47 | 20ft/30ft/31ft | 114.7 | 2.58:1 | ||
127 | 5 | 57.2 | 2 1/4 | NC38-50(3 1/2 IF) | 20ft/30ft/31ft | 121 | 2.38:1 | ||
152.4 | 6 | 57.2 | 2 1/4 | NC44-60 | 20ft/30ft/31ft | 144.5 | 2.49:1 | ||
152.4 | 6 | 71.4 | 2 13/16 | NC44-60 | 20ft/30ft/31ft | 144.5 | 2.84:1 | ||
158.8 | 6 1/4 | 57.2 | 2 1/4 | NC44-62 | 20ft/30ft/31ft | 149.2 | 2.91:1 | ||
158.8 | 6 1/4 | 71.4 | 2 13/16 | NC46-62(4 IF) | 20ft/30ft/31ft | 150 | 2.63:1 | ||
165.1 | 6 1/2 | 57.2 | 2 1/4 | NC46-65(4 IF) | 20ft/30ft/31ft | 154.8 | 2.76:1 | ||
165.1 | 6 1/2 | 71.4 | 2 13/16 | NC46-65(4 IF) | 20ft/30ft/31ft | 154.8 | 3.05:1 | ||
171.4 | 6 3/4 | 57.2 | 2 1/4 | NC46-67(4 IF) | 20ft/30ft/31ft | 159.5 | 3.18:1 | ||
171.4 | 6 3/4 | 71.4 | 2 13/16 | NC50-67(4 1/2 IF) | 20ft/30ft/31ft | 159.5 | 2.37:1 | ||
177.8 | 7 | 57.2 | 2 1/4 | NC50-70(4 1/2 IF) | 20ft/30ft/31ft | 164.7 | 2.54:1 | ||
177.8 | 7 | 71.4 | 2 13/16 | NC50-70(4 1/2 IF) | 20ft/30ft/31ft | 164.7 | 2.73:1 | ||
184.2 | 7 1/4 | 71.4 | 2 13/16 | NC50-72(4 1/2 IF) | 20ft/30ft/31ft | 169.5 | 3.12:1 | ||
196.8 | 7 3/4 | 71.4 | 2 13/16 | NC56-77 | 20ft/30ft/31ft | 185.3 | 2.70:1 | ||
203.2 | 8 | 71.4 | 2 13/16 | NC56-80 | 20ft/30ft/31ft | 190.1 | 3.02:1 | ||
209.6 | 8 1/4 | 71.4 | 2 13/16 | 6 5/8 REG | 20ft/30ft/31ft | 195.7 | 2.93:1 | ||
228.6 | 9 | 71.4 | 2 13/16 | NC61-90 | 20ft/30ft/31ft | 212.7 | 3.17:1 | ||
241.3 | 9 1/2 | 76.2 | 3 | 7 5/8 REG | 20ft/30ft/31ft | 223.8 | 2.81:1 | ||
247.6 | 9 3/4 | 76.2 | 3 | NC70-97 | 20ft/30ft/31ft | 232.6 | 2.57:1 | ||
254 | 10 | 76.2 | 3 | NC70-100 | 20ft/30ft/31ft | 237.3 | 2.81:1 | ||
279.4 | 11 | 76.2 | 3 | 8 5/8 REG | 20ft/30ft/31ft | 266.7 | 2.84:1 | ||







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