Reverse circulation rods

Technidrill offers rods specially designed for all your projects in Reverse Circulation drilling.

Remet rods

Metzke rods

PIP rods

CIP rods

Here are some information

Air flow

Rods type ID
Annular surface 1 Annular surface 2 Annular surface 3
3"3/4 PIP 46 mm 1183 mm2 998 mm2 3073 mm2
4" Metzke 46 mm 1436 mm2 1420 mm2 3326 mm2
4"1/2 Metzke 51,3 mm 1570 mm2 847 mm2 4731 mm2
4" Remet 46 mm 1333 mm2 860 mm2 3326 mm2
4"1/2 Remet 51,3 mm 1082 mm2 1160 mm2 4597 mm2
4"5/8 CIP 60,3 mm 1482 mm2 1290 mm2 3820 mm2

Annular surface 1 : Annular surface box thread side (mm2)

Annular surface 2 : Annular surface pin thread side

Annular surface 3 : Annular surface inner tube/outer tube

 

Mechanical resistances

Rods type OD

Wall thickness

Torque at yield point (daN.m)

3"3/4 PIP 95,7 mm
6,3 mm
541 daN.m
4" Metzke 101,6 mm
8 mm
921 daN.m
4"1/2 Metzke 114,3 mm
8 mm 1413 daN.m
4" Remet 101,6 mm
8 mm 874 daN.m
4"1/2 Remet 114,3 mm
8 mm 1331 daN.m
4"5/8 CIP 119,2 mm
8 mm 1035 daN.m

Other mechanical properties are available by downloading the documentation.

 

Pression drop :

For information this table is based on rods 4’’ and 4’’1/2 outer diameter.

Hole depth

250 m

300 m
Rod length 3 m
6
3
6
Rods quantity
83
42
100 50
Loss per rod
1 psi
1 psi 1 psi 1 psi
Rod total loss 83 psi
42 psi 100 psi 50 psi
Saver sub
2 psi
2 psi 2 psi 2 psi
Hammer sub
2 psi
2 psi 2 psi 2 psi
Swivel 3 psi 3 psi 3 psi 3 psi
Hose connexion 5 psi 5 psi 5 psi 5 psi
SUb total loss 12 psi 12 psi 12 psi 12 psi
Total loss 95 psi 54 psi 112 psi 62 psi

For more examples, download the attached documentation.