Reamer Bit IADC637 for Hard Formation

Reamer Bit for Hard Formation
IADC637, with strong protection
1. Why use a reamer bit
At some point it may be necessary to increase the size of a pre-drilled hole to a larger diameter or to drill large diameter holes. Reamer Bits are designed specifically for this purpose. Reamer Bits are custom manufactured in a wide range of styles to meet field requirements. A custom reamer bit is an effective way of enlarging holes.

2. Cutter Configurations
TCI (Tungsten Carbide Inserts) Cutters are avalable along with diamond enhanced features. Fixed cutter reamer bit are made from sections of tricone bits TCI cutters and steel tooth cutters with carbide tipping.
Drillers can replace the cutters, we can provide the replacement cutters which save you shipping the hole opener to and from the manufacturer for repair.

3. The Reamer Bit Advantage
1). Straighter Holes
      By drilling a smaller hole with a "pilot" bit, then attaching that said bit onto the bottom of the reamer bit. The reamer bit will follow the path of the hole drilled by the smaller bit.
2). Larger holes with smaller rigs
      by drilling a hole stages, large holes can be drilled with smaller rigs. A smaller hole requires less power.
3). Replacing Cutters and Lower Cutting Cost
      On most reamer bits designs, the cutters can be easily replaced. The cost to replace a cutter is a fraction of the cost to replace a large tricone rock bit
4). Cost of large rock bits will be higher
      Large diameter rock bits not only cost a lot, they can be difficult to find. A more economic solution is to use a reamer bit that uses smaller tricone rock bits segments.
5).  Flexability
      Reamer bits can be fabricated in just about any size, and can be configured to drill through any formation

4. Operational Considerations
     1).  Drilling Weight - The choice of drilling weight is determined based on the recommendations of the bit manufacturer and the number of cutters on the hole opener.
      2).  Number of Cutters - The number of cutters placed on a hole opener is governed by the following facts:
         2-1).  Maximum number which will fit around the perimeter.
         2-2).  The greater the number of cutters, the less the weight, which therefore reduces the penetration rate.
         2-3).  In softer formations, less weight is needed to penetrate.
         2-4).  The greater the number of cutters, the smoother the tool will run.
         2-5).  The greater the number of cutters, the greater the cost.
         2-6).  The greater the number of cutters, the longer the cutters will last
    3).  Rotary Speed      
           Maximum speed is determined by the manufacturer's recommendation and the calculation to account for the linear distance the cutter is moving per revolution
    4).  Hole Cleaning
             A frequently over looked point of reamer bits operation is hole cleaning. The volume of cuttings to remove from a hole increase by a squared factor with an increase in hole diameter.

5.   Tell us the following information please for an exact price:
--Hole Opener Bit Diameter
--Drilling Formation
--Guide Bit/Pilot Bit Diameter if Available
--Thread Connection
--Number of Cones
--Length of Center Rod if Available
or provide us drawings, we would make accordingly

Reamer Bit with Pilot Bit IADC617 for Hard Foramtion, Strong Gage Protection

Reamer Bit IADC517 for soft to Medium Formation


14'' Reamer Bit with 1.2m Center Rod