IADC code | Inch | Blade | Gage length | Nozzle Quantity | Weight | Rotate Speed | Connected Thread | Recommended Torque |
M121 | 8 1/2'' | 4 | 2 | 6 | 0.10-1.00 | 500-80 | 4 1/2 REG | 16.3-21.7 |
M121 | 12 1/4'' | 4 | 2 2/5 | 6 | 0.36-1.60 | 500-80 | 6 5/8 REG | 38.0-43.4 |
M221 | 8 1/2'' | 5 | 3 | 5 | 0.10-1.00 | 260-80 | 4 1/2 REG | 16.3-21.7 |
M323 | 8 1/2'' | 6 | 3 3/4 | 6 | 0.20-1.50 | 260-80 | 4 1/2 REG | 16.3-21.7 |
M432 | 12 1/4'' | 7 | 2.5 | 7 | 0.30-1.50 | 260-60 | 6 5/8 REG | 38.0-43.4 |
M433 | 8 1/2'' | 6 | 3 | 6 | 0.20-1.50 | 260-80 | 4 1/2 REG | 16.3-21.7 |
Matrix body PDC bits come with a variety of optional features designed to enhance their performance, durability, and efficiency in drilling operations. These features are tailored to address specific drilling challenges, such as abrasive formations, directional drilling requirements, and varying rock strengths. Some of the optional features include:
Cutter Technology:
Enhanced Cutter Protection: Options for improved cutter protection against impact and abrasion can extend the life of the bit in challenging formations.
Variable Cutter Sizes: Incorporating different sizes of cutters can optimize the bit for various rock strengths and drilling conditions.
Hydraulic Design:
Customized Nozzle Placement: Adjustable nozzle placements allow for optimized fluid dynamics, improving cuttings removal and cooling efficiency.
Enhanced Cleaning Features: Special features can be added to improve the cleaning of the bit face, ensuring the cutters maintain direct contact with the formation.
Gauge Protection:
Tungsten Carbide Inserts: These can be added to the gauge area of the bit to protect against wear and ensure the bit maintains its gauge for a longer period, improving hole quality.
Diamond-Enhanced Inserts: For even greater durability, diamond-enhanced inserts can be used in the gauge protection area.
Blade Design:
Variable Blade Count: Offering bits with different numbers of blades allows for customization to balance aggressiveness and stability in various formations.
Shock Absorbers: Some bits include features designed to absorb shocks and vibrations, reducing the risk of damage to the bit and improving performance in hard or inconsistent formations.
Steering and Control:
Steerable Profiles: Certain matrix body PDC bits are designed with profiles that enhance steering capabilities, making them suitable for directional drilling operations.
Depth of Cut Control: Features that help control the depth of cut can improve drilling efficiency and prevent cutter overload.
Wear-Resistant Materials:
Advanced Matrix Materials: The development of even more wear-resistant matrix materials helps extend the life of the bit in extremely abrasive conditions.
Backreaming Capability:
Back-reaming Features: Some bits are designed to perform effectively while being pulled back through the hole, expanding the hole or improving its quality.
These optional features allow operators to select a matrix body PDC bit that is closely tailored to their specific drilling needs, optimizing performance and cost-effectiveness in a wide range of drilling environments.
Matrix body bits are made from tungsten carbide material, offering higher durability and wear resistance in abrasive formations. Steel body bits, constructed from steel, are more flexible and less expensive, suitable for less abrasive and softer formations. Each excels in different drilling conditions.