High Speed Drilling Matrix Body M522 PDC Drill Bit In Consolidated Formations
Product Description
PDC bits are designed for high speed drilling in shale, limestone, and sandstone formations.
Unlike roller cones, these polycrystalline diamond compact (PDC) drill bits are one piece bodies with no moving parts. The fixed-cutters shave away the rock, making it possible to operate with higher rotation speeds more efficiently in consolidated formations.
MATRIX BODY PDC BITS
“Matrix” is a very hard, rather brittle composite material comprising tungsten carbide grains metallurgically bonded with a softer, tougher, metallic binder. Matrix is desirable as a bit material, because its hardness is resistant to abrasion and erosion. It is capable of withstanding relatively high compressive loads, but, compared with steel, has low resistance to impact loading.
Matrix is relatively heterogeneous, because it is a composite material. Because the size and placement of the particles of tungsten carbide it contains vary (by both design and circumstances), its physical properties are slightly less predictable than steel.
Matrix-body PDC bits are commonly preferred over steel-body bits for environments in which body erosion is likely to cause a bit to fail. For diamond-impregnated bits, only matrix-body construction can be used.
PDC CUTTING STRUCTURE
Very soft (1) to medium (4) formation type pdc bits have one dominant size of PDC cutter. PDC cutting structure is denoted in the following way:
2 – this bit has mostly 19mm cutters
3 – this bit has mostly 13 mm cutters
4 – this bit has mostly 8 mm cutters
Diamond PDC bits work across an extended range of weight on bit, penetrating quickly even at low bit weights in softer rock. When formations firm up, the bits can take added weight with a smooth torque response and maintain higher than competitive rates of penetration. The technology is a departure from traditional plural set bits that require higher weights to drill even in soft rock, and are generally durable, but slow, even in harder rock. Traditional plural set bits also can produce an erratic torque response when taking additional weight.
"This innovative design allows operators to recognize drilling efficiencies through
Increased rates of penetration.
Enhanced Stability.
Optimum product durability."
| The specification of Matrix body PDC bit (M522) |
| 1.Short parabola crown prodle
2.φ 16 cutters
3.Power of counterpoise design 4.Adopt aod cutters design 5.Repareble nozzles & immobility nozzles 6.Gage of smooth design 7.Suitable for formation grades such as shale,limestone,sand and Anhydrite. |
| Size(in) | Total Length(mm) | Gage length(mm) | Nozzle | Weight (kg) | Number of blades | API Shank(in) |
| 8 | 435 | 55 | 5R | 53 | 5 | 4 1/2" API REG |
| 8 1/2 | 435 | 55 | 5R | 59 | 5 | 4 1/2" API REG |
| 9 | 460 | 65 | 5R | 73 | 5 | 6 5/8" API REG |
| 9 1/2 | 460 | 75 | 7R | 140 | 5 | 6 5/8" API REG |
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High Speed Drilling Matrix Body M522 Pdc Drill Bit In Consolidated Formations Images
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