NRQ series drill rods undergoes technical upgrading on the basis of Q drill rods. Well drilling capability is improved and well drilling cost is decreased due to its stable and reliable connection.
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Surface set reaming shell is a specialized tool used in the field of diamond drilling for geological exploration and mining. It is designed to expand the diameter of an existing borehole while maintaining its original trajectory and improving its overall quality.
The surface set reaming shell consists of a cylindrical body with a threaded connection to attach it to the drill string. The outer surface of the shell is embedded with natural or synthetic diamonds, known as surface set diamond impregnation. These diamonds are securely bonded to the shell using a matrix of hard metal, such as tungsten carbide.
During drilling operations, the surface set reaming shell is rotated and advanced into the existing borehole. As it rotates, the embedded diamonds on the outer surface of the shell grind and cut through the surrounding rock formation, gradually enlarging the diameter of the hole.
The surface set reaming shell is typically used in applications where a high-quality borehole is desired, such as when drilling through hard or abrasive formations. It helps to improve hole stability, reduce deviation, and enhance core recovery. The presence of the surface-set diamonds ensures efficient cutting and extends the lifespan of the reaming shell before it needs to be replaced.
Overall, the surface set reaming shell plays a crucial role in the diamond drilling process, enabling the creation of accurately sized and high-quality boreholes for effective exploration and mining operations.
Type | B-WL(BQ) | N-WL(NQ) | H-WL(HQ) | P-WL(PQ) |
O.D. of Bit | Φ59.5mm | Φ74.6mm | Φ95.6mm | Φ122mm |
I.D. of Bit | Φ36.5mm | Φ47.6mm | Φ63.5mm | Φ85mm |
O.D. of Reaming Shell | Φ60mm | Φ75.8mm | Φ96mm | Φ122.6mm |
Product Advantages
* Diamond Impregnated Pad
Enables the use of large synthetic diamonds greatly enhancing wear life and eliminating the need for specialty shells in diamond exploration.
* Diamond Ground
Outer diameter grinding pre-exposes the diamond and reduces variation in size improving stability and helping to produce the longest lasting reaming shell available.
* Heavy Duty
Available with an optional heavy duty blank to prevent undercutting in extremely broken conditions (standard on oversize versions).
* Dual Pad
Available in dual pad 10” configurations for straighter holes when deviation is a concern.
Note: Q is the trademark from BLY, here we quoted for helping customers to do a selection only.
Surface set reaming shell is a specialized tool used in the field of diamond drilling for geological exploration and mining. It is designed to expand the diameter of an existing borehole while maintaining its original trajectory and improving its overall quality.
The surface set reaming shell consists of a cylindrical body with a threaded connection to attach it to the drill string. The outer surface of the shell is embedded with natural or synthetic diamonds, known as surface set diamond impregnation. These diamonds are securely bonded to the shell using a matrix of hard metal, such as tungsten carbide.
During drilling operations, the surface set reaming shell is rotated and advanced into the existing borehole. As it rotates, the embedded diamonds on the outer surface of the shell grind and cut through the surrounding rock formation, gradually enlarging the diameter of the hole.
The surface set reaming shell is typically used in applications where a high-quality borehole is desired, such as when drilling through hard or abrasive formations. It helps to improve hole stability, reduce deviation, and enhance core recovery. The presence of the surface-set diamonds ensures efficient cutting and extends the lifespan of the reaming shell before it needs to be replaced.
Overall, the surface set reaming shell plays a crucial role in the diamond drilling process, enabling the creation of accurately sized and high-quality boreholes for effective exploration and mining operations.
Type | B-WL(BQ) | N-WL(NQ) | H-WL(HQ) | P-WL(PQ) |
O.D. of Bit | Φ59.5mm | Φ74.6mm | Φ95.6mm | Φ122mm |
I.D. of Bit | Φ36.5mm | Φ47.6mm | Φ63.5mm | Φ85mm |
O.D. of Reaming Shell | Φ60mm | Φ75.8mm | Φ96mm | Φ122.6mm |
Product Advantages
* Diamond Impregnated Pad
Enables the use of large synthetic diamonds greatly enhancing wear life and eliminating the need for specialty shells in diamond exploration.
* Diamond Ground
Outer diameter grinding pre-exposes the diamond and reduces variation in size improving stability and helping to produce the longest lasting reaming shell available.
* Heavy Duty
Available with an optional heavy duty blank to prevent undercutting in extremely broken conditions (standard on oversize versions).
* Dual Pad
Available in dual pad 10” configurations for straighter holes when deviation is a concern.
Note: Q is the trademark from BLY, here we quoted for helping customers to do a selection only.
