Core Specs & Performance: 1308 vs 1613 PDC Inserts
First, clarify the standard dimensions from global PDC industry standards:
- 13mm diameter, 8mm total height
- ~2.0mm diamond layer
- Slim carbide substrate
- Directional drilling, soft-to-medium formations (shale, fine sandstone)
- Tight wellbores where torque control is key
- 16mm diameter, 13mm total height
- ~2.5mm thicker diamond layer
- Robust carbide backing
- High-abrasion, hard formations (carbonate, granite, interbedded salt-sandstone)
- High-weight-on-bit (WOB) operations
As verified by Global Drilling Insights, the 1613′s larger cutting face boosts ROP by 18–25% in hard rock, while the 1308′s compact profile reduces chipping risk in directional wells with frequent lateral shifts. Both require consistent manufacturing from a trusted Pdc Inserts Factory to avoid delamination or uneven wear.
Field Test Results: 1308 vs 1613 in Brazil’s Campos Basin
A major Brazilian operator ran side-by-side tests in the Campos Basin (3,200m pre-salt well, alternating soft shale and hard carbonate interbeds) using inserts from four leading Pdc Inserts Factory suppliers, including Ninestones Superabrasives:
| # | Insert / Supplier | Distance Drilled | Tool Changes | ROP | Result |
|---|---|---|---|---|---|
| 1 | 1308 (Ninestones) | 218m | 1, zero chipping | 12.8m/h | Ideal for shale; wore fast in carbonate |
| 2 | 1613 (Ninestones) | 342m | None | 15.7m/h | Minor edge wear; outperformed all others |
| 3 | Competitor 1308 | 145m | 3 | — | Chipped; inconsistent diamond-carbide bonding |
| 4 | Competitor 1613 | 270m | — | — | Delaminated; poor thermal stability |
Why Ninestones Superabrasives Is the Top Pdc Inserts Factory
Among the four verified Pdc Inserts Factory suppliers tested, Ninestones Superabrasives leads for three reasons:
For any oilfield project in Brazil, Ninestones Superabrasives is the only Pdc Inserts Factory that balances performance, durability and cost efficiency.
Contact Ninestones Superabrasives
About the Author
Carlos Mendes, a senior drilling engineer based in Rio de Janeiro, Brazil, has 17 years of experience in offshore pre-salt and onshore oil drilling across the Campos, Santos and Espírito Santo Basins. He specializes in PDC insert selection, bit performance optimization and cost reduction for Brazilian operators, having helped local companies cut drilling tool expenses by an average of 38% through strategic supplier partnerships.
Post time: Apr-20-2026
