Interchangeable blades are easily replaced in rig conditions, significantly reducing operating costs.

Blade Reamers

RL type blade reamers are designed for drilling wells with pilot bit or enlarging previously drilled intervals. Service life of reamers is equal to service life of PDC bits in same conditions, herewith enlarging is carried out at high ROP. Reamers blades, equipped with PDC cutting structure, have backreaming cutters and reinforced gauge protection.

Delivery set of reamers includes interchangeable blades easily replaceable in rig conditions, significantly reducing repair and maintenance costs.

For providing effective cuttings removal reamers are equipped with changeable wear resistant nozzles.

For enlarging previously drilled intervals reamer can be completed with extending sub and PZU (special tool preventing from accidental sidetracking) equipped with jet nozzles.

Tool series

Body diameter, mm

Min. pilot hole (pilot bit) diameter, mm

Opening diameter, mm

Overall length, mm

API top/bottom box connection

RL-152-215.9

152

152.4

215.9

550

NC-38/3 ½ Reg

RL-216-295.3

235

215.9

295.3

780

4 ½ Reg/4 ½ Reg

RL-216-311

235

215.9

311

780

4 ½ Reg/4 ½ Reg

RL-295-394

310

295.3

394

980

5 ½ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ FH

RL-295-398

310

295.3

398

980

5 ½ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ FH

RL-295-444.5

310

295.3

444.5

980

5 ½ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ FH

RL-295-495

350

295.3

495

1,000

5 ½ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ FH

RL-295-510

350

295.3

510

1,000

5 ½ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ FH

RL-295-550

350

295.3

550

1,000

5 ½ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ FH

RL-295-585

350

295.3

585

1,000

5 ½ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ Reg
6 ⅝ FH/6 ⅝ FH

RL-394-660.4

394

393.7

660.4

1,000

6 ⅝ FH/6 ⅝ FH

RL-394-710

394

393.7

710

1,000

6 ⅝ FH/6 ⅝ FH

PZU type

Blade Reamer series

PZU-140

RL-152-215.9

PZU-200

RL-216-295.3
RL-216-311

PZU-280

RL-295-394
RL-295-398
RL-295-444.5
RL-295-495
RL-295-510
RL-295-550
RL-295-585

PZU-350

RL-394-660.4
RL-394-710