Place of origin:hebei, china (mainland)
Brand name: kingdream
Model number: iadc 127
Type: drill bit
Machine type: drilling equipment
Certification: api
Material: cr-mn alloy
Processing type: forging
Use: coal mining
Commodity: roller cone bits milled tooth
Bit size: 12 1/4" 311mm
Reg: 6 5/8"reg
Color: blue, according to customers demand
Formation: soft formation
Market: all over the world
Price: competition price
Delivery time: delivery on time
Iadc codes: wide size code
1.Cutting structure this type tci tricone bits:
The durability of premium tungsten carbide insert is improved with new formulas and new techniques for insert bit.
2.Gauge structure this type tci tricone bits:
Multiple gauge protection with gauge trimmers on the heel of cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
3.Bearing structure of this type tci tricone bits:
High precision bearing with two thrust faces. Ball lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved.
4.Seal and lubrication of this type tci tricone bits:
Premium oring, optimal seal compression and curved seal structure can enhance the seal performance. The pressure compensator system and advanced grease can greatly increase the lubricating reliability .
5.Product application this type tci tricone bits:
It can receive high wob in the conventional drilling. It is suitable for various formations by matching cutting structure with different tooth shape, tooth density and tooth exposure height.
6.Advantage:
1. High-strength, high flexibility, high temperature and high wear resistance.
2. High-precision metal seal.
3. Locking roller ball, to adapt to high-speed.
4. The use of high strength high toughness carbide teeth,
5. Hours in the rotary cone bit with the impact, crushing and shearing the role of broken rock.
6. Cone bit to adapt to the soft, medium and hard of various strata.
7. Reasonable price and long working life.
which is a matrix body PDC bit four to eight curved blades using arc-type ang short parabolic shape design, the rational allocation of different functions small size cutters,so that the PDC bit have a strong impact resistant, hyfrualic balance design, with each balde cuttting the amount of displacement is proportational to the volume of cutttings transports to match the PDC bit cutting transports capacity optimization. while using a dynamic flow simulation technlogy to optimize the hydraulic design of the PDC bit, so bottom hole flow field optimization, enhanced PDC bit cleaning, coolling capacity,more optimum bottom hle flow pattern and anti- balling.
Medium hard to hard formations with high compressive strength and abrasive, such as shale, limestone, anhydrite, sandstone and so on
The main structure features:
Tungsten carbide matrix PDC possesses high wear resistance and impact resistance.
Parabolic crown profile and maximizes junk slot area can clean bit better, and prolong the bit working life.
Applying hydraulics balance design, 5 renewal nozzles and reasonable nozzles locating angle can gain ideal fluid field in well bottom, fully clean and cool cutter, and prolong the cutter working life.
Non-symmetry blade arrangement enhances drilling well balance.
Optimization for cutter shape, slant angle, cutter numbers prolong the cutter working life in combination with high quality PDC cutter, and improve ROP and drilling efficiency.
It can be used on rotary or down hole motor.
High HIS is recommended.
Product Advantages:
1. PDC cutters for high speed drilling;
2. All cutters are premium grade for extended bit life and durability;
3. Cutter layout is force balanced to drill a precise round hole and reduce bit whirl;
4. Large junk slots and flushing ports;
5. Advanced geometric design for faster penetration;
6. Gauge pads have tungsten carbide inserts for maximum wear resistance;
Tricone Roller Bits
All sizes and IADC codes of drill bits are available. Special requirements of different models can be customized.
1)Main features
1. Cutting Structure of this type sealed and non-sealed tci tricone bits:
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
2. Gauge Structure of this type tci tricone rock bits:
Multiple gauge protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
3. Bearing Structure of this type tci tricone rock bits:
High precision roller bearing with two thrust faces. Ball lock the cone. Thrust faces hardface with wear resistant alloy. Abrasion resistance and seizure resistance of the bearing are improved.
For more info:
www.crossingbit.com
Hebei Crossing Drill Bit Manufacture CO.,LTD
Rock Roller Bits:
Soft formation rock bits are used in unconsolidated sands, clays, soft limestones, redbeds and shale. Medium formation bits are used in dolomites, limestones, and hard shale, while hard formation bits are used in hard shale, mudstones, cherty limestones and hard and abrasive formations.
1.Tighten the bits when screw on.
2.When the bit lower down to the bottom ,
Should give a soft pressure, slow drilling .After a drilling 0.2m-0.3m with appropriate pump, then give the conventional drilling.
3.Drilling could not be without water, if not fear the normal vibration sound or drill too slow, lift the drill to check without delay.
4.When drill jammed, withdraw first, should not to force the rig start.
5.Drill could not without water, to ensure that the bit will be too hot.
6.Use the bits in right order , big size first, then small one .
