Ceramic rod

silicon nitridezirconiahigh-temperature

Overview
Innovacera technical ceramic inserts are engineered for downhole bridge plug and frac plug slip systems. Primary dimension is OD 9 mm × 6 mm. Depending on service conditions they are manufactured from zirconia (ZrO2) or silicon nitride ceramics. These inserts constitute the core meshing elements used to set drillable and staged fracturing bridge plugs in oil and gas wells, contributing to safe and efficient underground isolation operations.

Properties

• Engages casing wall during setting
• Maintains wellbore pressure during operations
• Fast and clean mill-out for post-frac recovery
• Resistant to high temperature, high pressure, acidic and high-salinity environments
• Setting force transmitted via mandrel
• Inserts expand and engage with casing to form mechanical grip
• Sealing elements activate to isolate pressure zones
• Secure downhole barrier established after set

Zirconia Ceramic Material Properties
Physical Properties
Properties — Unit — Value
Main Composition — % — ZrO2: 94.65%, Y2O3: 5.35%
Density — g/cm3 — ≥6.0
Water Absorption — % — 0.00

Mechanical Properties
Hardness — HV — 1,400.00
Bending Strength — Kgf/mm2 — 11.00
Compressive Strength — Kgf/mm2 — 25.00

Thermal Properties
Thermal Expansion Coefficient (0–1000℃) — 10-6/K — 9.5×10-6
Thermal Shock Resistance — T(℃) — 360.00
Thermal Conductivity — W/m·K — 3.00

Electrical Properties
Volume Resistance Rate (20℃) — Ω·cm — >10^12

Advantages

• Reduces total operation cost and non-productive time (NPT)
• Alternative to traditional carbide solutions
• Improves downhole tool reliability in demanding conditions
• Designed for complex and unconventional oil & gas completions

Applications

• Shale gas and tight oil multistage fracturing
• HTHP wells (high temperature and high pressure)
• Sour and high-salinity wells
• Well intervention and recompletion operations
• Geothermal wells
• Pipeline inspection components and pump wear pads

Specifications

• Main size: OD 9 mm × 6 mm
• Typical materials: Zirconia (ZrO2 stabilized with Y2O3) or Silicon Nitride
• Main composition (zirconia example): ZrO2: 94.65%, Y2O3: 5.35%
• Density: ≥6.0 g/cm3
• Water absorption: 0.00%
• Hardness: ~1,400 HV
• Bending strength: 11.00 Kgf/mm2
• Compressive strength: 25.00 Kgf/mm2
• Thermal expansion coefficient (0–1000℃): 9.5×10-6 /K
• Thermal shock resistance: 360 ℃
• Thermal conductivity: 3.00 W/m·K
• Volume resistance rate (20℃): >10^12 Ω·cm
• Designed to engage casing wall, isolate pressure zones and allow fast, clean mill-out