Oilfield API Drill Collars

1.Alloy steel,carbon steel,stainless steel,etc, 2.OD:79.4-279.4mm, 3.Factory, 4.Timely delivery, 5.API Spec. - details see: https://www.machineto.com/oilfield-api-drill-collars-10317576
Place of Origin:Henan China (Mainland)Brand Name:ZZZXModel Number:DC1125Type:Drill Collar,Petroleum drill tools
Machine Type:Drilling ToolCertification:APIMaterial:Steel,4145H alloy steelProcessing Type:Forging
Use:Well DrillingCondition:NewUsage:Oil Well 
Oilfield API Drill Collars
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Oilfield Drill Collar

♦ The Petroleum drilling tools of Zhongzhong's mainly include Drill collars, Spiral drill collars, Non magnetic drill collars, Short drill collars, Drill tool stabilizers, Non magnetic drill tool stabilizers, Integral heavy weight drill pipes, etc.

♦ The details of Drill collar as follows,

1. Material: AISI 4145H Alloy steel, Non magnetic steel, etc.

2. Shape: It is the round pipe with smooth surface and thick wall, and the both ends are machined screw thread for connection.

3. Use: It is mainly used between the drill head and the drill pipe, so that it can make the drill head work reposefully and keep right trace by providing the pressure and weight for drill head.

4. Standard: API Spec 7-1 or SY/T5144 Standard.

5. Inspection&Test: When producing, traceability are maintained from the receipt of raw material to completion of final products, and serial numbers are die-stamped on each workpiece body. During each manufacturing process, inspection and test are performed.

6. 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

Oilfield API Drill Collars
Packaging Detail:Iron shelves or others suited seashipment.
Delivery Detail:7-15 days after getting your repayment or workable L/C.

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