API Spec Spiral Oil Steel Drill Collar in Oilfield with Elevator and Slip Groove/Non magnetic Drill Collar for oil well drilling

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$1,000.00 - $10,000.00 / Pieces | 1 Piece/Pieces (Min. Order)
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Overview
Quick Details
Place of Origin:
China (Mainland)
Brand Name:
APS
Model Number:
Spiral Drill Collar
Type:
Drill Collar
Machine Type:
Drilling Tool
Certification:
API
Material:
Alloy steel and Non magnetic
Processing Type:
Forging
Use:
Well Drilling
Usage:
Gas Deep Hole Drilling
Length:
679~2032mm(±25.4mm)
Supply Ability
Supply Ability:
1000 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
Iron shelves package, API 7-1 Steel Non magnetic oil drill collar packing
Port
Tianjin Port
Lead Time :
As per the quantity

 

API Spec Spiral Oil Steel Drill Collar in Oilfield with Elevator and Slip Groove/Non magnetic Drill Collar for oil well drilling

 

Product Description

Drill collar is basic component which provides weight on the bit for drilling and keeps the drill sting in tension. Drill collar is manufactured from 4145H modified quenched and tempered steel, strict metallurgical specifications are followed to insure that full length heat treating produces a consistent maximum depth of hardness.

 

1. Slick Drill Collar:  provide weight to drill bit so that drill pipe is in tension. Especially the drill collar can keep centralizing for drill bit and hole track by large rigidity.

 

2. Spiral Drill Collar: reduce contact area with hole so as to avoid efficiently bit sticking from diffirential pressure.

 

3. Non-magnetic Drill Collar: as cold rolled finish on both ID and OD surface with unique technical process strengthen the structure and ensures the tools with optimal resistance to stress, corrosion, cracking and the mechanical performance is greatly enhanced.

 

Technical parameter

1. Material AISI 4145H, 4145HMod, Non-Magnetic Drill Collar

 

OD+4mm

Connection

ID+1.59mm

Length±152.4mm

Chamfering Diameter ±0.4mm

Length of one spiral ±25.4mm

79.4

NC23

31.8

9140 or 9450

76.2

679

88.9

NC26

38.1

9140 or 9450

82.9

679

104.8

NC31

50.8

9140 or 9450

100.4

914

114.3

NC31

50.8

9140 or 9450

100.4

914

120.6

NC35

50.8

9140 or 9450

114.7

965

127

NC38

57.2

9140 or 9450

121

965

139.7

NC40

57.2

9140 or 9450

132.2

1067

158.8

NC46

71.4

9140 or 9450

144.5

1067

168.3

NC50

71.4

9140 or 9450

154.8

1168

177.8

NC50

71.4

9140 or 9450

164.7

1168

196.8

NC50/NC56

71.4

9140 or 9450

185.3

1626

203.2

NC56/6 5/8REG

71.4

9140 or 9450

190.1

1727

209.6

6 5/8REG

71.4

9140 or 9450

195.6

1727

215.9

6 5/8REG

71.4

9140 or 9450

195.6

1727

228.6

6 5/8REG

71.4

9140 or 9450

212.7

1829

241.3

7 5/8REG

76.2

9140 or 9450

223.8

1829

254

7 5/8REG/8 5/8REG

76.2

9140 or 9450

237.3

1930

279.4

8 5/8REG

76.2

9140v9450

266.7

2032

 

2. Non-Magnetic Drill Collar Mechanical Property

 

Fishing Neck OD

Yield Strength Rf(MPa)

Tensile Strength Rm(MPa)

Elongation Ali(%)

Reduction of Area (%)

Impact Value (Joule)

Hardness HB

3 1/2”-6 7/8”

≥758

≥827

≥18

≥45

≥81J(RT)

285~341

7”-11”

≥689

≥758

≥20

≥45

≥81J(RT)

285~341

 

* relative permeability: μ(Gauss/Oersted)<1.010

 

* magnetic fieldgradient: Max. Deviation of the Magnetic field in the inner hole to uniform magnetic field: ≤±0.05μT

 

* intergranular corrosion(Anti corrosion): as per ASTM A262E for intergranular corrosion test.

 

 

Visual Flow Chart

 

 

Test & Production

 

 

Note

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