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Spiral Drill Collars 3 1/8

1.0~3000.0 USD
Min. Order: 35 Metric Ton
Trade Term: FOB
Payment Terms: L/C, T/T
Supply Ability: 5000MT/MONTH
Place of Origin: Beijing

Company Profile

Location: Beijing, China (Mainland)
Business Type: Manufacturer
Main Products: API Steel Pipe AND PREMIUM CONNECTION

Product Detail

Model No.: DL-H -V-J-T
Means of Transport: Ocean
premium connection: Tubing with Tenaris-Hydril Blue Analog Thread p110
Tubing with Tenaris-Hydril Blue Analog Thread p110: victor@landdrillholding.com
T3SB Analog 6 5/8 with API 5CT casing: T3SB Analog 6 5/8 with API 5CT casing
Hunting SL-Flush Thread Analog with Tubing and Casing: Hunting SL-Flush Thread Analog with Tubing and Casing
1) API Spec 5CT. 2) J55, K55, N80, L80, P110 3) OD: 4.5" to 30" 4) Related Premium Connection: SL-HT/SL-HC/TH-HD/Boss/: 1) API Spec 5CT. 2) J55, K55, N80, L80, P110 3) OD: 4.5" to 30" 4) Related Premium Connection: SL-HT/SL-HC/TH-HD/Boss/
Hunting SL-HT/SL-HC Thread Analog with Tubing and Casing: Hunting SL-HT/SL-HC Thread Analog with Tubing and Casing
Production Capacity: 5000MT/MONTH
Packing: Bundles as API packing requirement OR as your request
Delivery Date: 50 days
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Product Description

  1. Sizes: 3-1/8 to 11 inches

  2. Material: AISI 4145H

  3. API Spec 7


Full-length heat-treatment processes ensure that mechanical propertiesmeet or exceed API Spec 7 requirements. Drill collar material and processtraceability are maintained from receipt of mills' certified raw material tocompletion of all the manufacturing. Serial numbers are die stamped on barbodies. Drill collar thread roots, as well as elevator recess upper radius, arecold-rolled. Cold rolling creates a compressive recess upper radius stresscondition that increases fatigue life by minimizing crack initiation. All tooljoint connections are phosphate-coated or copper plated to improve resistanceto corrosion. Optional slip and elevator recesses to improve handlingefficiency and safety are also available.

                                                                                                                                                                                           

 

Diameter

 
 

Bore

 
 

Tool Jint

 
 

Length

 
 

Bending Strength Ratio

 
 

Weight

 
 

in

 
 

mm

 
 

in

 
 

mm

 
 

ft

 
 

m

 
 

lb/30 ft

 
 

kg/9.14 m

 
 

3-1/8

 
 

79.4

 
 

1-1/4

 
 

31.8

 
 

NC23

 
 

30

 
 

9.14

 
 

2.57:1

 
 

622

 
 

300

 
 

3-1/2

 
 

88.9

 
 

1-1/2

 
 

38.1

 
 

NC26

 
 

30 or 31

 
 

9.14 or 9.45

 
 

2.42:1

 
 

809

 
 

367

 
 

4-1/8

 
 

104.8

 
 

2

 
 

50.8

 
 

NC31

 
 

30 or 31

 
 

9.14 or 9.45

 
 

2.43:1

 
 

1.030

 
 

476

 
 

4-3/4

 
 

120.7

 
 

2

 
 

50.8

 
 

NC35

 
 

30 or 31

 
 

9.14 or 9.45

 
 

2.58:1

 
 

1.502

 
 

681

 
 

5

 
 

127.0

 
 

2-1/4

 
 

57.2

 
 

NC38

 
 

30 or 31

 
 

9.14 or 9.45

 
 

2.38:1

 
 

1.592

 
 

722

 
 

6

 
 

152.4

 
 

2-1/4

 
 

57.2

 
 

NC44

 
 

30 or 31

 
 

9.14 or 9.45

 
 

2.49:1

 
 

2.578

 
 

1.169

 
 

6

 
 

152.4

 
 

2-13/16

 
 

71.4

 
 

NC44

 
 

30 or 31

 
 

9.14 or 9.45

 
 

2.84:1

 
 

2.328

 
 

1.056

 
 

6-1/4

 
 

158.8

 
 

2-1/4

 
 

57.2

 
 

NC44

 
 

30 or 31

 
 

9.14 or 9.45

 
 

2.91:1

 
 

2.825

 
 

1.281

 


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