PDC Attributes

VAREL incorporates a set of dynamically optimized attributes within the PDC Drill Bit product line, offering a suite of value-driven solutions to common impediments seen in traditional drill bit performance.

VENOM™ Cutter Technology

The VENOM™ Cutter methodology identifies the right PDC cutter to solve the key challenges within the application. Using the right diamond and diamond shape helps eliminate risk and maximizes value. Ensuring the correct diamond attributes are emphasized is the key to delivering consistent and reliable performance while keeping the cutters sharp and engaged. Sharp cutters drill faster – ALWAYS!


Cutter Attributes:

The VENOM™ Cutter methodology identifies the right PDC cutter to solve the key challenges for the application. Key diamond attributes can be enhanced to better match the demanding need. By selecting the diamond blend that best suits the need, the cutter will stay sharper, longer.

  • Abrasion: Enhancing the abrasion attribute will target the hard sandstone and siltstone drilling environments. Higher diamond density Venom product keeps cutters sharp.
  • Impact: Impact damage can abruptly stop a successful run. Diamond that does not crack and, if it does crack, it does not expand helps keep the bit in the ground.
  • Thermally Stable: Focus on the thermal attribute allows cutters to endure higher temperatures for longer. This is a key for long runs with high friction heat generation due to the rock and parameters.
  • Cutting Efficiency: Modification of the physical shape of the cutter can enhance the cutting efficiency. This upgrade can allow for improved ROP and/or durability.
  • Shear Strength: If the strength of the cutter is not able to handle the combination of rock interaction and application, the bit will fail quickly and premature trips happen. Matching this attribute to the need makes for consistent bit runs.


Five proprietary cutter technologies born from precision manufacturing processes – delivering robust, abrasion-resistant, and thermal cutting solutions:

  • Venom cutting efficiency is maximized by enhancing the base diamond material with specifically engineered shapes. These shapes are focused on improving drilling speed and/or durability.
  • ARTIMIS: Leading edge geometry creates a stress point in the formation to pre-fracture the rock. Application is hard formation with heavy transitions. Can be setup to attack chert.
  • FANG: . A sharp-edged cutter to be active and pre-fracture the rock as a backup or secondary cutter. Used to get higher ROP’s with lower energy requirements.
  • COBRA: A combination of the Fang shape blended with Artimis ridge. This layout is useful in lateral runs to increase both speed and durability.


HYDRA

An applications-driven program that combines the technologies of CFD and cutting structure design which led to a breakthrough in designs for the industry that are original. Unique features are apparent with webbed blades, curved nozzles, and engineered junk slot designs.


Features / Benefits:

Curved nozzles reduce the stream impact to the formation eliminating erosion and increasing bit stability in soft to medium formations.

Webbed blades along with unique junk slot design-reduce cuttings recirculation compared to other junk slot areas, eliminating the regrinding of cuttings and increased cutting evacuation.

Better cleaning and cutter cooling leads to extended bit life by reducing plugged nozzles, core outs, and bit balling.

HYDRA Info Sheet