|Color:||Black Or You Wanted||Material:||High Carbon Steel|
|Application:||Hole Drilling In Mines, Hydrology And Water Well ,Geothermal Well||Usage:||Geologic Exploration,gravel Stratu|
|Formation:||Complicated Gravel Formation||Quality:||Best|
|Diameter:||88.9mm-114.3mm||Length:||As Your Required|
|Thread:||3.5'' / 4'' / 4.5'' Remet / Metzke / Matrix|
Reverse Circulation RC Drill Rod,
Dia 88.9mm RC Drill Rod,
dia 114.3mm double wall drill pipe
Reverse Circulation RC Drilling Rods With Outer Tube And Inner Tube Black Color For Mining
Reverse Circulation RC Drilling Rods is also called Double wall drill pipe, double drill pipe or Dual Wall drill pipe. It consists of two layers of inner and outer drill pipes (called inner pipe and outer pipe). The inner and outer pipes constitute an annular gap, which is a channel for pumping the flushing medium to the bottom of the hole when hydraulic rock drilling and center sampling drilling. The central hole of the inner tube is fixed as a whole by discharging the flushing medium, and each double-walled drill pipe is connected with the screw of the outer tube to ensure transmission of torque and pressure. The inner tube is usually connected by a plug-in method, which generally only serves as a flushing medium. Therefore, a sealing device is required at the plug-in place.
1.Industry leading technology and intellectual property
2.State of the art manufacturing operations, ensuring consistent quality
3.A thorough understanding of RC drilling and applications.
4.High tensile hardened tool joints
5.Seamless High tensile drill pipe and inner tube material
6.Options for additional heat treating of tool joints
7.Options for Urethane Seals to replace traditional "O" Ring setup
SOLLROC Dual Wall RC Drill rod specification:
|Pipe OD||Outer Tube||Inner Tube||Thread||Spanner Flat||Weight|
|outer diameter||inner diameter||wall thickness||outer diameter||inner diameter||wall thickness||3M||6M|
|3 1/2''||88.9 mm||81.8 mm||5.3 mm||38.1 mm||32.6 mm||5.5 mm||3 1/2'' Remet||90 mm||77 kgs||125 kgs|
|4''||101.6 mm||94.6 mm||7.1 mm||50.8 mm||45.3 mm||5.5 mm||4'' Remet||90 mm||77 kgs||155 kgs|
|4''||101.6 mm||94.6 mm||7.1 mm||50.8 mm||45.3 mm||5.5 mm||4'' Metzke||90 mm||77 kgs||155 kgs|
|4''||101.6 mm||94.6 mm||7.1 mm||50.8 mm||45.3 mm||5.5 mm||4'' Matrix||90 mm||77 kgs||155 kgs|
|4 1/2''||114.3 mm||107.2 mm||7.1 mm||63.5 mm||58 mm||5.5 mm||4 1/2''Remet||90 mm||97 kgs||172 kgs|
|4 1/2''||114.3 mm||107.2 mm||7.1 mm||63.5 mm||58 mm||5.5 mm||4 1/2''Metzke||90 mm||97 kgs||172 kgs|
|4 1/2''||114.3 mm||107.2 mm||7.1 mm||63.5 mm||58 mm||5.5 mm||4 1/2''Matrix||90 mm||97 kgs||172 kgs|
High pressure air transported into somewhere of the well along with air pip, via mixer to inject the high-pressure air into the pipe with liquid, due to the density of mixed liquor lower than flushing liquor therefore a differential pressure occurred between pipe and sample tube that to make the mixed air and liquid flow up fleetly by the fluid column pressure and take the rock debris into powder out to the ground from bottom of the hole continuously. By this drilling method will provide with advantages like high penetration rate, quality pore-forming and fewer hole collapse rig drilling in loose formation.
This series reverse circulation pipes can increase penetration in lost-circulation formation, reduce drilling fluid consumption, protect reservoir stratum and save the cost of other consumption tools. In additional, the pipes can be worked in two direction circulation drilling ways to control the well drilling. By reverse circulation method to kill the well the heavy mud can be transferred directly to the bottom of the well, no periodic circulation and save time.
SOLLROC Reverse Circulation drilling (RC) ,from size 3’’ to 5.5’’, is a technique of drilling that uses dual wall drill rods that consist of an outer drill rod with an inner tube. By using compressed air to extract rock fragments sample,the samples travel through rods to a sample splitter at surface, avoiding all contact between the samples and the borehole wall that allows samples to be retrieved with minimal contamination,which is mainly used in deep hole exploration and mining grade control.
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Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.
Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests.
Contact Person: Ms. Ling Bo