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12 1/4" S1655JXA Reverse circulation core bit
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Core and combined bit
Product details
Nomenclature of RUlSHI Core and combined bit Model
| S | 19 | 5 | 5 | X |
| S: Steel Body PDC Bit M： Matrix Body PDC Bit |
Cutter Size 19: diameter 19mm 16: diameter 16mm 13: diameter 13mm |
Blade Count 3、4、5、6... |
Formation from soft to hard 1-7 |
Design Characters J/A J Series X Sprial Gauge C Sidetracking Bit Q Core Bit B Bi-center Bit F Row Cutters G Advanced Cutters |
BITS SPECIFICATIONS
| Size | 8 1/4" |
| Number of blade | 6 |
| Primary Cutter Size(mm) | 16 |
| TFA（in2） | 6-10 |
| Gauge Length | 2"-3.5" |
| Connection |
CHUAN8-3CBS |
RECOMMENDED PARAMETERS
| Rotary Speed(rpm) | 40-150 |
| Weight On Bit(KN) | 20-110 |
| Flow Rate(lps) | - |
Trait: 6 blades、large water channel、core
Suitable for coring in medium soft formations
soft shale、limestone、mudstone…
The layout with large channel
Field sampling in reverse circulation mode、sampling and drilling are completed at the same time
Reduce the number of trips
Real-time observation of formations characteristics and real-time adjustment of parameters
Reduce losses and improve drilling efficiency
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To: Hebei Ruishi Bits Manufacturing Co.,Ltd
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No. 502, Taishan North Road, Renqiu Economic Development Zone, Hebei China
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