Reverse Circulation Drill Pipe

The Reverse Circulation Drill Pipe incorporates a patented dual tube design. The Reverse Circulation Drill Pipe is used for mineral exploration and special construction applications.

Product Details

Double wall drill pipe

Double Wall Drill Rod/Drill Pipe for Air-Lift Reverse Circulation

 

Reverse Circulation Drill Pipe

The Reverse Circulation Drill Pipe incorporates a patented dual tube design. The Reverse Circulation Drill Pipe is used for mineral exploration and special construction applications.       


Reverse Circulation drilling is recognized as a fast and cost efficient alternative to diamond core drilling. With continuous advancements, deep holes and fast penetration rates are possible in almost all ground conditions, making Reverse Circulation the preferred drilling method for initial exploration, ore body development and other exploratory drilling.

   

Reverse Circulation Drill Pipe

Reverse Circulation Drill Pipe


Reverse Circulation Drill Pipes

Reverse Circulation Drill Pipes


Reverse Circulation Drill Rod

Reverse Circulation Drill Rod


Reverse Circulation drilling utilizes dual wall drill rods made up of an outer rod and an inner tube. The inner tube is designed to provide a continuous path for the drill cutting to pass from the bit face to the surface. Air or fluids are forced down the annulus between the drill rods and inner tube to the drilling tool (Reverse Circulation hammer, Tricone, or Fixed Cutter Bit). The cuttings return to the surface inside the inner tubes of the rods, where they are directed to a cyclone for separation and sample collection.


Roschen offers a complete line of quality Reverse Circulation tooling including rods, subs, hammers, bits, and accessories. In addition, our sales and support team has the knowledge and experience necessary to provide troubleshooting and on site tooling solutions. 


Reverse circulation drill pipe

Outer tube O/D in

Inner tube  in

Lerngth  m

Type of thread

Range of drill in

3 1/2

1 1/2

3 ~ 6

Remet, Metzke, Matrix, others

4-1/8-4-3/4

4

2

3 ~ 6

Remet, Metzke, Matrix, others

4-3/4-5-1/2

4 1/2

2 & 2-1/2

3 ~ 6

Remet, Metzke, Matrix, others

5-1/8-6

6 5/8

3

3 ~ 6

Remet, Metzke, Matrix, others

7-7/8-15

10 3/4

5

3 ~ 6

Remet, Metzke, Matrix, others

Over 15

* Roschen offers reverse circulation drill string components in accordance with the requirements of the customer. Reverse circulation drill pipes available in different model, diameters and length.


Reverse Circulation Drill Rod Specifications

Type  / Thread

Remet

Remet

Remet

Metzke

Metzke

Matrix

Matrix

Rod O.D.

3 1/2"

4"

4 1/2"

4"

4 1/2"

4"

4 1/2"

Outer tube O.D.

88.9mm

101.7mm

114.3mm

101.7mm

114.3mm

101.7mm

114.3mm

Outer tube I.D.

81.8mm

94.6mm

107.2mm

94.6mm

107.2mm

94.6mm

107.2mm

Outer tube WT

5.3mm

7.1mm

7.1mm

7.1mm

7.1mm

7.1mm

7.1mm

Inner tube O.D.

38.1mm

50.8mm

63.5mm

50.8mm

63.5mm

50.8mm

63.5mm

Inner tube I.D.

32.6mm

45.3mm

58mm

45.3mm

58mm

45.3mm

58mm

Inner tube WT

5.5mm

5.5mm

5.5mm

5.5mm

5.5mm

5.5mm

5.5mm

Spanner Flat

90mm

90mm

90mm

90mm

90mm

90mm

90mm

Weight 3.0 m

77 kg.

77 kg.

97 kg.

77 kg.

97 kg.

77 kg.

97 kg.

Weight 6.0 m

125 kg.

155 kg.

172 kg.

155 kg.

172 kg.

155 kg.

172 kg.


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