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Surface Diamond Core Bit for rock drilling

Surface Diamond Core Bit for rock drilling

This type of bit is primarily recommended for use in drilling relatively soft, abrasive, unconsolidated formations that are not effectively drilled by impregnated diamond bit. It is also recommended for use in drilling harder formations where the available rotary speeds and bit loads are insufficient to use impregnated diamond bits due to drilling equipment limitations.

Description

This type of bit is primarily recommended for use in drilling relatively soft, abrasive, unconsolidated formations that are not effectively drilled by impregnated diamond bit. It is also recommended for use in drilling harder formations where the available rotary speeds and bit loads are insufficient to use impregnated diamond bits due to drilling equipment limitations.

 

In most cases, surface set diamond bits will provide higher rates of penetration than in softer formations due largely to the greater degree of exposure of the individual diamond crystals.

To choose a right surface set for the formations drilled, we need at least consider the following aspects: diamond size, diamond grade, profile design.
Principle of choosing diamond size--the harder the rocks, the smaller the diamond size should be.

 

Size

Wireline series: Geobor S, WLA, WLB, WLN, WLH, WLP, WLB3, WLN3, WLH3, WLP3, WLN2, AQ, BQ, NQ, HQ, PQ, SQ, PQ3, HQ3, NQ3, BQ3, NQ2, WL-56, WL-66, WL-76

T2 / T series: T2 46, T2 56, T2 66, T2 76, T2 86, T2 101, T46, T56, T66, T76, T86

TT series: TT 46, TT 56

T6 series: T6 76, T6 86, T6 101, T6 116, T6 131, T6 146

T6S series: T6S 76, T6S 86, T6S 116, T6S 131, T6S 146

B series: B46, B56, B66, B76, B86, B101, B116, B131, B146

MLC series: NMLC, HMLC

LTK series: LTK48, LTK60

WF series: HWF, PWF, SWF, UWF, ZWF

WT series: RWT, EWT, AWT, BWT, NWT, HWT(Single Tube, Double Tube)

WG series: EWG, AWG, BWG, NWG, HWG(Single Tube, Double Tube)

WM series: EWM, AWM, BWM, NWM, HWM

Other sizes: AX, BX, NX, HX, TBW, NQTT, HQTT, TNW, 412F, BTW, TBW, NTW, HTW, T6H

Chinese standard: 56mm, 59mm, 75mm, 89mm, 91mm, 108mm, 110mm, 127mm, 131mm, 150mm, 170mm, 219mm,                                  275mm

Russian standard: 59, 76, 93, 112, 132, 152 mm


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  • Xi'an Tydrillbits Co.,Ltd

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    Tel:0086 29 88894370

    Fax:0086 29 88292894-602

    Email:robert@tydrillbits.com

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