Email: sales@prodrill.com.cn
Tel:0086-18959243380
Addr: Room 805 C1 Wanda Plaza, No.5 Jinzhong Road, Huli District, Xiamen, China
Reverse Circulation Rod ( RC Rod )
- RC Drill Pipes from 88,9 mm to 273 mm OD :
- Standard design with o-rings, alternative with special flat seal system (OF-version) :
- All common industry standards, METZKE, REMET, Matrix - MAXFLOW, API and PERFORATOR threads :
- Replaceable inner tubes on all designs :
- Accessories: Crossover subs, Digout Subs, Blow-Down subs, Blow-Up subs etc. :
- Non-Mag stainless steel RC drill pipes:
Reverse Circulation (RC) Drilling is a method of drilling which uses dual wall drill pipes that consist of an outer drill pipe with an inner tube.These hollow inner tubes allow the drill cuttings to be transported back to the surface in a continuous, steady flow.Unlike diamond drilling, it compiles sample rock cuttings instead of rock core.
Reverse circulation drill pipe,also known as double-wall drill pipe,is a kind of drilling tool used for reverse circulation drilling,which is composed of inner and outer layers of drill pipe (called inner pipe and outer pipe).An annular gap is for between that inner pipe and the out pipe,and the circulating medium flows to the bottom of the hole from the annular gap of thedouble-wall drill rod during drill.
The central hole of the inner pipe is used to take out the circulating medium and bring the core sample back to the surface.Each double-wall drill pipe is connected by the screw thread of the outer pipe to ensure the transmission of torque and pressure.The inner pipe is usually connected by plugging,which generally only plays the role of circulating the circulating medium. The plugging is equipped with a sealing device.Reverse circulation drilling can effectively prevent the collapse of the well wall and improve the drilling efficiency.
Reverse Circulation drill rod (also called dual-wall drill pipe) comprises an outer and inner pipe with a sealing system (usually 0 Rings) to keep the drill string pressurized. As RC drill rods are subjected to high wear in the drilling process Prodrill use only the high quality hardened alloy steel for the both rods and tool joints.
| ProDrill RC Drill Rod Technical Data Sheet | ||||||||
| Model | O.D.（mm） | Length(m) | Outer tube wall thickness (mm) | Inner tube diameter (mm) | Inner tube wall thickness (mm) | Inner tube weight (Kg) | Outer tube weight (Kg) | Overall weight (Kg) |
| RC89 RC double wall drill rod(Remet 3" threaded) | 89 | 3 | 6.5 | 50 | 5 | 20 | 45 | 65 |
| RC102 RC double wall drill rod(Remet 4" threaded) | 102 | 3 | 6.5 | 50 | 5 | 20 | 53 | 73 |
| RC102 RC double wall drill rod(Remet 4" threaded) | 102 | 6 | 6.5 | 50 | 5 | 36.5 | 98 | 134.5 |
| RC114 RC double wall drill rod(Remet 4.5" threaded) | 114 | 3 | 8.5 | 60 | 5 | 23 | 73 | 96 |
| RC114 RC double wall drill rod(Remet 4.5" threaded) | 114 | 6 | 8.5 | 60 | 5 | 43 | 139 | 182 |
Reverse Circulation (RC) Drilling is a method of drilling which uses dual wall drill pipes that consist of an outer drill pipe with an inner tube.These hollow inner tubes allow the drill cuttings to be transported back to the surface in a continuous, steady flow.Unlike diamond drilling, it compiles sample rock cuttings instead of rock core.
We offer:
RC Drill Pipes from 88,9 mm to 273 mm OD.
Standard design with o-rings, alternative with special flat seal system (OF-version).
All common industry standards, METZKE, REMET, Matrix - MAXFLOW, API and PERFORATOR threads.
Replaceable inner tubes on all designs.
Accessories: Crossover subs, Digout Subs, Blow-Down subs, Blow-Up subs etc.
Non-Mag stainless steel RC drill pipes.
