17 1/2" Steel 6 Blades PDC Drill Bits

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2018年03月20日

Tricone Drill Bits

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FASTBACK – ROP ENHANCEMENT PDC DRILL BITS

17 1/2" Steel 6 Blades PDC Drill Bits 

Polycrystalline diamond materials, for use in polycrystalline diamond compact (PDC) bits, are one of the most important material advances for oil drilling tools in recent years. Fixed-head bits rotate as one piece and contain no separately moving parts. 



High Performance PDC Drill Bits


Roschen PDC drill bits are engineered to engage a wide range of drilling formations and applications while delivering smooth, consistent torque. Roschen PDC Drill Bits are the ideal choice for directional drilling, providing the ultimate in steerability thanks to a compact unibody profile coupled with proprietary PDC cutter technology. Our PDC Drill Bit cutting structures are complemented by Accelglide, allowing our customers to increase efficiency downhole.


Table of classification of formation hardness and bit selection

Roller cone bit

IADC code

IADC code of diamond bit

Formation description

Rock type

Compressive strength(Mpa)

ROP(m/h)

 

111/124

 

M/S112~M/S223

Very soft:sticky soft formation with low compressive strength.

Clay

Slitstone

sandstone

 

<25

 

>20

 

116/137

 

M/S222~M/S323

Soft:soft formation with low compressive strength and high drillability.

Clay rock

Marl

Lignite

sandstone

 

25~50

 

10~20

 

 

 

417/527

 

 

 

M/S323~M/S433

 

Mediumsoft:soft to medium formation with low compressive strength and steak.

Clay rock

Marl

Lignite

Sandstone

Siltstone

Anhydrite

Tuff

 

 

 

50~75

 

 

 

5~15

 

517/537

 

M322~M443

Medium:medium to hard formation with high compressive strength and thin abrasive streak.

Mudstone

Dark rock

shale

 

75~100

 

2~6

 

 

537/617

 

 

M422~M444

 

Medium hard:hard and dense formation with high compressive strength and medium abrasiveness.

Dark rock

Hard shale

Anhydrite

Sandstone

Dolomite

 

 

100~200

 

 

1.5~3



PDC DRILL BITS SPECIFICATIONS
NO.ROCK BIT SIZEREG.PIN API
inmm
13 3/495.32 3/8
23 7/898.42 3/8
34 1/8104.82 3/8
44 1/41082 3/8
54 1/2114.32 3/8
64 5/8117.52 7/8
74 3/4120.72 7/8
84 7/8123.82 7/8
95 1/2139.73 1/2
105 5/8142.93 1/2
115 2/3143.93 1/2
124 3/4146.13 1/2
135 7/8149.23 1/2
146152.43 1/2
156 1/8155.63 1/2
166 1/4158.83 1/2
176 1/2165.13 1/2
186 5/8168.33 1/2
196 3/4171.53 1/2
207 1/2190.54 1/2
217 5/8193.74 1/2
227 7/82004 1/2
238 3/8212.74 1/2
248 1/2215.94 1/2
258 5/8219.14 1/2
268 3/4222.34 1/2
279 1/2241.36 5/8
289 5/8244.56 5/8
299 7/8250.86 5/8
3010 1/2266.76 5/8
3110 5/8269.96 5/8
3211279.46 5/8
3311 5/8295.36 5/8
3412304.86 5/8
3512 1/4311.26 5/8
3612  5/16312.76 5/8
3713 3/8314.36 5/8
3812  7/16315.96 5/8
3912 5/8320.76 5/8
4013 1/8333.46 5/8
4113 1/2342.96 5/8
4213 5/8346.16 5/8
4313 3/4349.36 5/8
4414 1/2368.37 5/8
4514 3/4374.77 5/8
4615 1/2393.77 5/8
4716406.47 5/8
4817 1/2444.57 5/8
4918 7/8479.47 5/8
50205087 5/8
5122558.87 5/8
5224609.67 5/8
5326660.47 5/8
5428711.27 5/8
55307627 5/8




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