Symmetric Casing System With Reamer Symmetric Bit For Overburden Drilling

Brand Name:MIROC
Certification:ISO
Model Number:Symmetric casing system with reamer
Minimum Order Quantity:1
Delivery Time:15-20 days
Place of Origin:CHINA
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Location: Beijing Beijing China
Address: Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
Supplier`s last login times: within 1 hours
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Product Details

Symmetric Casing System with reamer Symmetric Bit for Overburden Drilling

The Symmetric Casing Drilling system consists of three parts: central pilot bit, casing shoe and symmetrical ring bit. The central pilot bit drills away the center part of the hole and guides the drill string, incorporated with a sacrificable symetrical ring bit make a full face drill bit.


Advantages of Symmetric Drilling

  • Sound drilling straightness and fast drilling speed.
  • The torque necessary for symmetric drilling is much less than that for eccentric drilling.
  • Unlocking-relocking can be relatively easily achieved.
  • Drilling can be carried out at any angle.
  • Effective cuttings discharge.
  • Easy-to-operate and system security.
  • Economical and cost-effectve.


Specification


Casing OD
(mm)
Casing wall max
(mm)
Ring bit ID
(mm)
Ring Bit OD
(mm)
Pilot Bit OD
(mm)
Hammer
114.36/1091/78128/124100/92.5ND35
126.7799140110ND35
139.77/10116/94154/150124/117.5ND45/NOL4
168.38/12.7142/121182/178150/140ND55/NQL5
178.310145195156ND55/NQL5
193.76/12.7167/148212/203180/167ND65/NQL6
219.17/12.7186/167234203/191ND65/NQL6
2738/12.7232/219292255/246ND85/NQL8
323.98/12.7281/270342/342306/297ND85/NQL8
406.412.7328419374NSD10/N125
50815412526470ND475/SD15
609.615513637570ND525/SD18

China Symmetric Casing System With Reamer Symmetric Bit For Overburden Drilling supplier

Symmetric Casing System With Reamer Symmetric Bit For Overburden Drilling

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