The various drill bits of Hebei Speedy Drill Bit Co., Ltd. are guaranteed to fully comply with all the terms and standards of the API specification of the American Petroleum Institute.
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2022
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What is the principle of selection of roller cone bits?
For soft formations, roller cone bits with three structures of shift axis, overtop and compound cone should be selected, and the teeth should be milled teeth or inserts with high, wide, thin, and large tooth tip angles. With the increase of rock hardness, the above three structural values of the selected drill bit should be reduced accordingly, the teeth should also be short, narrow and dense, and the tooth tip angle should also be reduced accordingly.
07
2022
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07
Customized regular ruler trenchless rock palm
The roller palm includes insert teeth and steel tooth roller palm. This type of roller cones are cut by oil sealed drill bits and non-sealed drill bits, and can be used in various hardness formations. It is a drilling tool for pipe laying and routing in urban trenchless engineering
07
2022
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07
What are the characteristics of the reamer?
The rear end of the mounting baffle plate is provided with a spray hole and a nozzle is arranged, and the spray hole is communicated with the central hole of the main rod through the flow channel through the radial hole of the main rod.
07
2022
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07
How many types of roller cone bits are there?
According to the number of cones, there are single-cone drills, double-cone drills, tri-cone drills and multi-cone drills. According to the structure, it can be divided into integral type roller cone bit and non-body type roller cone bit. According to the type of teeth, there are milling teeth and insert drills. According to the bearing type, there are rolling and sliding bearing drill bits and sealed and unsealed bearing drill bits. According to the utilization of hydraulic energy, there are jet and non-jet drill bits.
07
2022
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07
1. What are the types of drill bits according to their functions?
According to the function, the drill bit is divided into two types: the drill bit for full drilling (full diameter drill bit) and the drill bit for annular drilling (coring bit).
07
2022
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07
Our main products: tricone bits, PDC bits, HDD hole opener, foundation single roller cutters,drag bit and related tools
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Junziguan Industrial Zone, Hejian City, Hebei Province
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