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Introduction
Design for higher ROP in drilling deeper and harder formations, PDC drill bit always drills from ground to bottom directly with less or even a single run, saving large amount of drill time and cost .
Differ from tricone bit, PDC drill bit runs with lower WOB but Higher RPM, so it usually works with downhole motor to pick up rotating speed.
The performance of PDC drill bit depends a lot on PDC cutters, we provide unique solution to specific requirement on varied formations.
Features
1.Durasef Gauge: Super strong material promotes gauge wear resistance to enhance long lifetime.
2.Hydraulics: The movement and cooling of cuttings can be optimized by the hydraulic design that matches the chip quantity and displacement of each blade.
3.Special Backrake Design: A Backrake can be added in the bit in order to prevent the bit from getting stuck when drilling.
Technology
Unique Blade Design: Importing exclusive cutting teeth and unique curved blade design improve the ability of drilling in hard interlayer.
Basical Specification | |
Size of bit | 8 1/2’’ |
Number of Blades | 5 |
Primary Cutter Size | 19mm |
Nozzle Qty. | 5NZ |
Thread Connection | 4 1/2 REG |
Operating Parameters | |
RPM (r/min) | 60~300 |
WOB(KN) | 20~110 |
Application | Medium-hard to hard formations with low compressive strength, such as hard shale, limestone, sand-stone, dolomite, hard gypsum, marble, etc. |
Inch | MM | AP(thread) | Blades |
4inch | 101.6mm | 2 7/8 | 3 blades 4 blades 5 blades 6 blades 7 blades |
4 1/2inch | 114.3mm | ||
4.5/8inch | 117.5mm | ||
4 3/4inch | 120.5mm | ||
5 1/8inch | 130.2mm | ||
5 1/4inch | 133.4mm | ||
5 3/4inch | 146mm | ||
5 7/8inch | 149.2mm | 3 1/2 | 3 blades 4 blades 5 blades 6 blades 7 blades |
6inch | 152.4mm | ||
6 1/8inch | 155.6mm | ||
6 1/4inch | 158.7m | ||
6 11/32inch | 161mm | ||
6 1/2inch | 165.1mm | ||
6 3/4inch | 171.4mm | ||
7 1/2inch | 190.5mm | 4 1/2 | 4 blades 5 blades 6 blades 7 blades 8 blades
|
7 5/8 inch | 193.7mm | ||
7 7/8 inch | 200mm | ||
8 3/8 inch | 212.7mm | ||
8 1/2 inch | 215.9mm | ||
8 3/4 inch | 222.3mm | ||
9 11/64 inch | 233mm | ||
9 1/2 inch | 241.3mm | 6 5/8 | 4 blades 5 blades 6 blades 7 blades 8 blades 9 blades
|
9 5/8 inch | 244.5mm | ||
9 7/8 inch | 250.8mm | ||
10 1/2 inch | 266.7mm | ||
10 5/8 inch | 269.9mm | ||
11 inch | 279.4mm | ||
11 5/8 inch | 295.3mm | ||
12 inch | 304.8mm | ||
12 1/4 inch | 311.1mm | ||
13 3/4 inch | 349.25mm | 7 5/8 | 4 blades 5 blades 6 blades 7 blades 8 blades 9 blades
|
14 3/4 inch | 374.65mm | 7 5/8 | |
15 1/2 inch | 393.7mm | 7 5/8 | |
17 1/2 inch | 444.5mm | 7 5/8 |
Introduction
Design for higher ROP in drilling deeper and harder formations, PDC drill bit always drills from ground to bottom directly with less or even a single run, saving large amount of drill time and cost .
Differ from tricone bit, PDC drill bit runs with lower WOB but Higher RPM, so it usually works with downhole motor to pick up rotating speed.
The performance of PDC drill bit depends a lot on PDC cutters, we provide unique solution to specific requirement on varied formations.
Features
1.Durasef Gauge: Super strong material promotes gauge wear resistance to enhance long lifetime.
2.Hydraulics: The movement and cooling of cuttings can be optimized by the hydraulic design that matches the chip quantity and displacement of each blade.
3.Special Backrake Design: A Backrake can be added in the bit in order to prevent the bit from getting stuck when drilling.
Technology
Unique Blade Design: Importing exclusive cutting teeth and unique curved blade design improve the ability of drilling in hard interlayer.
Basical Specification | |
Size of bit | 8 1/2’’ |
Number of Blades | 5 |
Primary Cutter Size | 19mm |
Nozzle Qty. | 5NZ |
Thread Connection | 4 1/2 REG |
Operating Parameters | |
RPM (r/min) | 60~300 |
WOB(KN) | 20~110 |
Application | Medium-hard to hard formations with low compressive strength, such as hard shale, limestone, sand-stone, dolomite, hard gypsum, marble, etc. |
Inch | MM | AP(thread) | Blades |
4inch | 101.6mm | 2 7/8 | 3 blades 4 blades 5 blades 6 blades 7 blades |
4 1/2inch | 114.3mm | ||
4.5/8inch | 117.5mm | ||
4 3/4inch | 120.5mm | ||
5 1/8inch | 130.2mm | ||
5 1/4inch | 133.4mm | ||
5 3/4inch | 146mm | ||
5 7/8inch | 149.2mm | 3 1/2 | 3 blades 4 blades 5 blades 6 blades 7 blades |
6inch | 152.4mm | ||
6 1/8inch | 155.6mm | ||
6 1/4inch | 158.7m | ||
6 11/32inch | 161mm | ||
6 1/2inch | 165.1mm | ||
6 3/4inch | 171.4mm | ||
7 1/2inch | 190.5mm | 4 1/2 | 4 blades 5 blades 6 blades 7 blades 8 blades
|
7 5/8 inch | 193.7mm | ||
7 7/8 inch | 200mm | ||
8 3/8 inch | 212.7mm | ||
8 1/2 inch | 215.9mm | ||
8 3/4 inch | 222.3mm | ||
9 11/64 inch | 233mm | ||
9 1/2 inch | 241.3mm | 6 5/8 | 4 blades 5 blades 6 blades 7 blades 8 blades 9 blades
|
9 5/8 inch | 244.5mm | ||
9 7/8 inch | 250.8mm | ||
10 1/2 inch | 266.7mm | ||
10 5/8 inch | 269.9mm | ||
11 inch | 279.4mm | ||
11 5/8 inch | 295.3mm | ||
12 inch | 304.8mm | ||
12 1/4 inch | 311.1mm | ||
13 3/4 inch | 349.25mm | 7 5/8 | 4 blades 5 blades 6 blades 7 blades 8 blades 9 blades
|
14 3/4 inch | 374.65mm | 7 5/8 | |
15 1/2 inch | 393.7mm | 7 5/8 | |
17 1/2 inch | 444.5mm | 7 5/8 |
