311mm Shirttail Protection Tricone Drill Bit for Medium Formation

311mm Shirttail Protection Tricone Drill Bit
Specification:
1-- Size: 311mm (12 1/4'')
2-- PIN Connection:  6 5/8'' Reg.
3-- IADC: 535, for medium formation drilling
4-- Bearing Type: elastomer sealed bearing, water circulation system
5-- Gage Protection: double row shirttail protection inserts and hard facing
6-- Jat type tricone bit
7-- Meet with API & ISO standard

Hejian Huanyu, your trustable supplier in drill bits industry, we focus on making drilling more fast and low the drilling cost each inch

Our main products are:
Rock Bits (TCI & Mill Tooth), PDC Bits (Matrix and Steel), Hole Opener (TCI & Mill Tooth), Drag Bit ( Step Type, Chevron and PDC), PDC Non-coring Bit, Bit Breaker, PDC Cutters, Nozzles


Main optional features for the tricone bits
K:  Cutting structures for hard plastic formations
    Unique desigining parameters and lengthening insert crest enlarge rock-breaking volume at the bottom hole and increase bottom hole coverage and increase ROP of the bit in hard plastic formations

C: Center Nozzle
    Center jet can avoid bit balling, eliminate resorting area of fluid at bottom hole, expedite upward flow of cuttings and improve ROP, it is suitable for drilling in soft to medium soft formations with low compressive strength and high drillability

G: Head OD Enhancement
    Special inserts are strategically arranged on head OD to reduce effectively wear of the head and improve bit's gage protection in abrasive formation or directional and horizontal wells. Improved gage protection can extend service life of the bit

L:  Head OD Stabilization Pad
    Better protection of the bit head and compensating hole can be achieved in directional and horizontal well drilling applications
    There are 2 types:
      1) Bit head OD is reinforced with stabilization pad and compacts
      2) Spherical inserts are used on the lubrication reservoir closely

D: Gage Protection by Diamond Enhanced Cutters on Head O.D.
    The gage protection is significantly reinforced by adding diamond enhanced gage compacts on head OD. Bits with this features is suitable for drilling in directional and horizontal well with high abrasive formations