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In addition to our standard range of D-Series
impregnated diamond core bit matrices, Dimatec is pleased
to introduce our new high performance, “HR-Series”
range of matrices.
Dimatec’s HR-Series impregnated diamond core bits
have been specifically designed for use in Hard Rock drilling
applications where formation conditions are generally consolidated
and fine grained with high compressive strengths and Mohs
hardness values in the 6 to 8 range. Traditionally, it has
been necessary to apply higher bit loads when drilling under
these conditions in order to achieve acceptable rates of
penetration – usually at the expense of overall bit
life and premature wear on drill string components.
After conducting extensive field tests with the HR-Series
range of impregnated diamond core bits, several performance
benefits have been identified. These include:
- Very smooth cutting characteristics throughout the
life of the bit when drilling through even the hardest
formations.
- A relatively low weight-on-bit is required to maintain
a high rate of penetration. In some cases, a reduction
in bit load of as much as 30% has been realized with HR-Series
bits while achieving or exceeding the penetration rates
of competitive products. The application of lower bit
loads results in less wear and tear on drill string components
as there is less potential for flexure or over-tightening
of the thread connections.
- Under most conditions, HR-Series bits are self-sharpening.
Very little intervention by the drill operator is required
to keep the bit cutting steadily.
- HR-Series bits have demonstrated an ability to drill
through fractured formations with significantly fewer
core blocks than competitive products.
- Improved overall bit life and exceptional production
rates in harder, consolidated and fine grained formations.
For more specific information regarding the application
range of the new “HR-Series” matrices, please
visit the matrix
selection chart.
Please note that the HR8 matrix is now available in all
core bit sizes, waterway configurations and impregnation
depths. The HR7, HR9 and HR10 matrices remain under development
but will become available early in February 2006.
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