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图片21
图片21
Under reamer
0.0 Yuan 0.0 Yuan
Product description

Under reamer

Construction Features

Its body is made of modified alloy steel, fully heat treated to 285-341 Brinell hardness and 54J minimum impact strength. Connections are cold rolled, phosphatized, coated and equipped with protectors and are gagged to API Standards. Its body is inspected on an ultrasonic control unit over its full length and section. The original cutter and block assembly allows easy replacement of cutters by rig crews.

Cutters

Three different types (T, F and B) of cutters are offered.

Type T: Milled, machined with hardfaced sharp teeth for soft formations.

Type F: Milled, machined with hardfaced flat teeth, for medium hard formations.

Type B: Equipped with pressed-in tungsten carbide buttons, for hard formations

Hole Size (in)

Connection

HD (mm)

Overall Length (mm)

Fishing Neck

OD (mm)

D1 (mm)

L1(mm)

26

7 5/8 Reg.

660.4

3000

254

178

400

17 1/2

7 5/8 Reg.

444.6

2200

228

140

304

12 1/4

6 5/8 Reg

311.2

2000

228

100

300

9 5/8

5 1/2 FH

244.8

1800

178

71

300

8 1/2

4 1/2 Reg.

215.9

1730

165

71

200

8 3/8

4 1/2 Reg.

212.7

1600

165

71

200

8 1/8

4IF

209.00

1600

165

71

200

6 1/8

3 1/2IF

155.00

1470

140

51

200

6

3 1/2IF

152.00

1400

121

51

200

5 7/8

3 1/2IF

149.00

1470

121

51

200

 

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QINGDAO OILRIG TRADE CO., LTD. has been dedicating itself to export business of oilfield equipment and components to North/South America, Europe, Middle East, South East Asia .

Our Warranty

OILRIG warrants our products for a period of one year to be free from defective material and workmanship. OILRIG's products equal or exceed the quality and tolerances of the products provided by the original manufacturer. 

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