The Helix
The Helix is a stabilized roller reamer designed to improve the wellbore proï¬le by reaming the doglegs and microledges that hinder the completion of a well when running liner or casing to bottom. Designed to reduce friction and drive weight to bit, the patented helical proï¬le of the cutting rings stabilize the drill string while driving the tool downhole.
Overview
Three oï¬set cutting rings rotate around the mandrel on carbide running surfaces. The angle of these rings generate six points of contact, evenly distributed in a helical conï¬guration, providing 360 degree wall contact and bringing the hole to gauge. Tilted cutting rings provide ï¬ow passage for cutting returns. Localized friction is reduced and a âtractorâ eï¬ect is generated by isolating the drill string from the wellbore through the free spinning cutting rings.
Technical Speciï¬cations
| Tool Size (OD) | 5.00â (127 mm) |
|---|---|
| Tool ID | 2.25â (57.1 mm) |
| Available Cutter Head Size (Cutting OD) | 5.875â (149.2 mm) to 6.75â (171.5 mm) |
| Overall Length | 63â (1.60 m) |
| Total Weight | 225 lbs. (102 kg) |
| Recommended Flow Range | 150-350 gpm (0.57-1.325 m³/min) |
| Temperature Range | N/A |
| Recommended RPM | 0-120 rpm |
| Operational Pressure Drop Generated | 5-10 psi (35-70 kPa) |
| Max Pull | 320,000 lbs. (1,356 kN) |
| Torsional Load To Yield Body Connection | 20,000 ft.lbs (27,050 Nm) |
| Connections (*Other Connections Available Upon Request) | 3 ½ IF & 4 FH Pin & Box |
