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.
Three oï¬set cutting rings rotate around the mandrel on carbide running surfaces. The angle of these rings generate sixÂ 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.
|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 mÂ³/min)|
|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 Â½ IF & 4 FH Pin & Box|