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drill collar for control well deviation

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drill collar for control well deviation

Place of Origin : China

Brand Name : LAKE

Model Number : all model

Certification : API　７－１

Price : 2500-6000usd

Packaging Details : standard export package

Delivery Time : with in 20days or in stock

Payment Terms : TT,30% in advance, the balance payment should be paid before shipment

Supply Ability : 500 PC per mouth

MOQ : 1pc

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API 7-1 Drill collar

We supplyslick drill collars,spiral drill collarsandnon-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request.
Function :

1.Apply drill pressure to drilling bit .

2.Ensure the necessary strength in the circumstances of compression.

3.Lighten the vibration, swing and Run out of drilling bit to make a steady work status .

4.Control well deviation
Materials:
Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available.
Trepanning and Heat Treatment:
Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface.
Traceability:
Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies.
Rigid Inspection Procedures:
We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar.
Cold Rolling:
Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation.
Phosphate-coated or Copper Plating:
All connections are phosphate-coated or copper plated to improve resistance to corrosion.
Slip Groove, Elevator Groove and Size:
Lake offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines.
Thread Protectors:
Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.

drill collar for control well deviation

drill collar for control well deviation

Nominal size

D

d

L

mm

DF(mm)

Bending Strength ratio

mm

In

mm

in

NC31-41(2-7/8IF)

104.8

4-1/8

50.8

2

9150

100.4

2.43:1

NC35-47

120.7

4-3/4

50.8

2

9150

114.7

2.58:1

NC38-50(3-1/2IF)

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(4-1/2IF)

171.4

6-3/4

71.4

2-13/16

9150/9450

159.5

2.37:1

NC50-70(4-1/2IF)

177.8

7

57.2

2-1/4

9150/9450

164.7

2.54:1

NC50-70(4-1/2IF)

177.8

7

71.4

2-13/16

9150/9450

164.7

2.73:1

NC50-72(4-1/2IF)

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

6-5/8REG

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

212.7

3.17:1

7-5/8REG

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

232.6

2.57:1

NC70-100

254.0

10

76.2

3

9150/9450

237.3

2.81:1

drill collar for control well deviation


Product Tags:

slick drill collar

      

spiral drill collar

      

non magnetic drill collar

      
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