444.5mm 17 1/2”IADC 517 Drilling Tricone Bit Tricone Rock Drilling Head Bit For Oil Well Drilling Rigs Rock Tricone
444.5mm(17 1/2”)IADC 517 Drilling Tricone Bit Tricone Rock Drilling Head Bit For Oil Well Drilling Rigs Rock Tricone
Under the effect of drilling pressure and drill string rotation, the teeth crushed and also ate into the rock, and at the same time, there was some sliding and shearing of the rock. When it rolls at the bottom of the well, the teeth above it will successively impact and press into the formation, which can crush a part of the rock at the bottom of the well. At the same time, relying on its sliding, the shear effect weakens the remaining rock between the teeth, causing the rock at the bottom of the well to be completely broken and the wellbore to extend
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PRODUCT SPECIFICATIONS |
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series |
CA |
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tooth type |
TCI |
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connection |
6 5/8" Reg PIN |
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bearing |
Open bearing bit |
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Nozzle |
three jet nozzles |
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application |
Mining,water well,oil well,HDD,exploration,etc |
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weight |
78kg |
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certificate |
SY/T5164,ISO9001:2008 |
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RECOMMENDED ROCK FORMATION |
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medium soft with low compressive strength and harder abrasive stringers,such as shale,hard gypsolyte,soft limestone,sandstone and dolomite with stringers,etc. |
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RECOMMENDED DRILLING PARAMETERS FOR APPLICATION |
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Type&IADC code |
415 |
435 |
445 |
515,525 |
535,545 |
615,625 |
635,645 |
735,835 |
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WOB(KN/mm) |
0.35~0.90 |
0.35~0.95 |
0.35~1.00 |
0.35~1.05 |
0.35~1.05 |
0.35~1.05 |
0.70~1.20 |
0.70~1.20 |
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RPM(r/min) |
140~70 |
140~60 |
140~60 |
120~50 |
110~40 |
80~40 |
70~40 |
70~40 |
Crossing Bit, a leading manufacturer of PDC bits and tricone bits in northern China, has exported its high-quality drill bits to more than 30 countries, demonstrating its strong market influence and exceptional product strength.
Crossing Drilling Tools has not only established a sterling reputation in the drilling, construction, HDD (horizontal directional drilling), exploration, water well, geothermal, mining, and oil & gas industries, but has also gained widespread recognition from customers for its exceptional product reliability and quality. We are committed to developing and producing a range of high-quality tools, including tricone bits, PDC bits, tricone cutters (single rollers), PDC reamers, drag bits, and HDD hole openers, to meet the diverse needs of our customers.
Our meticulously designed PDC bits are specifically optimized for directional drilling. With exceptional stability, durability, and "directional" friendliness, they are able to precisely maintain the bit's position in narrow and complex pay zones, ensuring smooth drilling operations.
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