| Customization: | Available |
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| Customized: | Customized |
| Standard: | API |
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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 Siltstone 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 |
Medium soft: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 |
TIanrun tricone bit used for geoloical prospecting, development of oil and gas, drilling water wells,blast holes and making holes for| PDC Drill BIt |
MIlled tooth bit |
Hole Opener/ Rock Reamer bit |
| Tricone drill bit |
Milled tooth reamer bit |
Cone roller bit |
1. Premier Hole Opener
1. Drillers typically initiate the process with a smaller hole, which is then expertly expanded with
a hole opener. This technique is prevalent when operating with lower power drilling machines or
when the target end-hole size is substantially larger. We excel at customizing hole openers and
developing solutions tailored to the specific hardness of the rocks, desired drilling depth, and the precise dimensions of both the pilot and end-hole, ensuring optimal performance.
3. By equipping the hole opener with tricone bits as pilot bits, it transforms into a proficient
rock bit, perfect for specialized size well drilling. This versatility makes it suitable for various
4. The reamer's innovative design features four or more meticulously engineered cones.
5. Its cutting structure employs premium-grade tungsten carbide hard-facing or inserts,
formulated to enhance durability. This advanced technology significantly boosts the wear-resistant capabilities of the reamer, ensuring longevity and reliability.
6. The tricone bit serves as the primary pilot, ensuring precision and effectiveness.
7. Seal and lubrication are optimized with high-performance HNBR O-ring seals and advanced
grease, providing superior lubrication. Our products are ideal for large-scale well, mining, and
9: infrastructure projects. Recommended drilling parameters are meticulously set to align with the
customer's specific requirements, ensuring tailored solutions every time.
2. Outstanding Advantages of Hole Opener Bits
The directional crossing operation is a pivotal technique in unexcavated projects, encompassing
three phases: 1. Oriented hole operation, 2. Hole opening, and 3. Pipe pulling. Of these, the
hole opening is exceptionally challenging, yet the successful completion hinges on selecting the
ideal hole opener based on the equipment and geological formation.
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