Double-Rib PDC Core Bit for Water Well & Coal Exploration
Double-rib PDC core drill bit with paired crown support for stable water-well, geological and coal-mine formation sampling.
Double-Rib PDC Crown for Stable Water-Well and Coal-Mine Coring
This double-rib PDC core bit uses paired crown support to distribute cutting load and wear during water-well, geological and coal-mine sampling. Compared with a single-rib design, the double-rib crown provides greater support and stability while leaving less open flow area.
Double-Rib Crown Support
Paired cutting support improves crown stability and distributes wear.
Core Recovery for Field Decisions
The open center preserves a sample for geological, water-well or coal-seam assessment.
Clear Single-vs-Double Rib Choice
Choose double rib for stability and wear distribution; choose single rib when maximum openness and flushing are priorities.
Actual Product Views
Technical Specifications
| Product type | Double-rib PDC core drill bit |
|---|---|
| Cutting structure | Paired / double-rib crown segments with PDC cutters and central core passage |
| Primary applications | Water-well coring, geological survey, coal-mine exploration and formation sampling |
| Recommended formations | Soft to medium-hard formations where crown stability and wear distribution are priorities |
| Selection difference | Greater support than a single-rib crown, with comparatively less open flushing area |
| Important limitation | Hard, highly abrasive or severely fractured formations require technical review |
| Available sizes | Current selectable sizes are shown above; inner core diameter, crown geometry and thread require confirmation |
| Customization | Outer/inner diameter, rib/cutter layout, connection, waterways, hardfacing, color and packaging |
Selection and Operating Guidance
Recommended when
- Stable core recovery is required in water-well, geological or coal-mine work.
- More cutting support and wear distribution are needed than a single-rib layout provides.
- The core barrel and connection dimensions can be supplied.
Confirm before ordering
- Formation hardness, abrasiveness and fracture condition
- Core diameter, outer diameter, barrel and connection
- Rig speed, feed, flushing capacity, depth and quantity
Performance depends on formation, rig parameters, flushing and operating practice. Final configuration should be confirmed by the technical team.
Fast Quote Checklist
Send diameter, thread/connection, formation description, target depth, rig model, flushing method and quantity. Photos or geological reports improve configuration accuracy.
Hunan FengSu Drill Bit Co., Ltd. has 5 independent workshops and hundreds of employees. It has cooperated with China University of Geosciences and hired dozens of professors and doctors to research the ultra-wear-resistant material, with over 50 applications for patents. It's the manufacture of drill bit products which are efficient and strong enough to meet varied drilling requirements like natural gas, oil, coal exploration, geological exploration, and water wells. Certainly, our products will work perfectly under all kinds of rock environments. Adhering to the concept of unremitting technological innovation, strict quality control, and guaranteeing the reliability and professionalism in the products that we offer.
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