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HDD Rock Reamer ( Hole Opener ) mainly consists of four or more roller cones. Cutting Structure with premium tungsten carbide hard facing or premium tungsten carbide insert of formulas and new techniques is utilized, and increases wear-resistance capability of rock reamer. Hole opener with interchangeable cutters.
1. Drillers always drill a smaller hole at first, then enlarger it with hole opener, it is a type of regular drilling technology when the drilling machine is lower power or the end-hole is too big.
2. We can make the hole opener and solutions according to the hardness of rocks, drilling depth, size of pilot hole, size of end-hole.
3. If fix the tricone bits as the pilot bits, the hole opener will be a rock bits, hole opener with tricone bits as pilot bits is always applicable in special sizes well drilling
Richdrill offers the Drilling Contractor a large range of Rock Reamers
Range 8 ½" to 12" Diameter
Range 12" to 20" Diameter
Range 16" to 26" Diameter
Range 24" to 34" Diameter
Range 32" to 42" Diameter
Range 42" to 52" Diameter
Available roller cone with sealed bearing or metal sealed bearing.
Seal and Lubrication: High performance HNBR O-ring for bearing seal and advanced grease for lubrication.
Application: Suitable for the HDD /trenchless applications
Rock Reamer IADC Code:
|
IADC
|
Rock Formation
|
WOB
(KN/mm)
|
PRM
(r/min)
|
|
415/425/435
|
Low compressive strength,high drill-ability and extremely soft formation,like shale,clay,sandstone,conglomerate etc
|
0.35-0.90
|
140-70
|
|
447
|
Low compressive strength,high drill-ability and soft formation,like shale,clay,sandstone,soft limestone,salt rock,plaster etc.
|
0.35-1.00
|
140-60
|
|
517
|
Low compressive strength,high drill-ability and soft formation,like shale,clay,sandstone,soft limestone,salt rock etc.
|
0.35-1.05
|
120-50
|
|
527
|
Soft formation with low compressive,like Low compressive strength,high drill-ability and soft formation,like shale,clay,sandstone,soft limestone,salt rock,anhydrite etc.
|
0.35-1.05
|
120-50
|
|
537/547
|
Low compressive strength,medium formation with hard abrasive interlayer,like Hard shale,anhydrite,soft limestone,sandstone,dolomite with mezzanine,etc.
|
0.50-1.05
|
110-40
|
|
617/627
|
High compressive strength,medium hard and thick hard interlayer,like hard shale,limestone,sandstone,dolomite,etc.
|
0.50-1.05
|
80-40
|
|
637/647
|
High compressive strength,medium hard and high abrasive formation,like limestone,dolomite,sandstone,chert,etc.
|
0.70-1.20
|
70-40
|
Q1:Production Time:
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