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20-100Mesh
SEPPE CENOSPHERE
2621900090
20-100 mesh high alumina silica microsphere for cementing. The ceramic hollow spheres provide lightweight density control, good chemical stability, and improved performance in cement slurry systems.
▸ This product is selected for oilfield systems where lightweight density control and downhole stability are required.
▸ The hollow aluminosilicate structure helps reduce slurry or fluid density while maintaining inorganic chemical stability.
▸ Particle size, floatation, density, and strength should be confirmed by batch data and application testing.
▸ Density Control: Low true density helps reduce hydrostatic pressure in cementing or drilling systems.
▸ Good Floatation: High floatation supports stable suspension and reduces density segregation risk.
▸ Downhole Stability: Ceramic aluminosilicate chemistry resists common oilfield chemical environments.
▸ Mesh Selection: Controlled mesh size helps match slurry or fluid rheology requirements.
▸ Technical Traceability: COA and specification data can support oilfield project documentation.

▸ Oil well cementing systems
▸ Lightweight cement slurry design
▸ Lead slurry and filler cement
▸ Low-pressure formation cementing
▸ High-stability cement blends
| Chemical Analysis (Typical) | |
| SiO₂ | 50-60% |
| Al₂O₃ | 25-40% |
| Fe₂O₃ | 1-6% / low iron grade available |
| CaO | 1-1.5% |
| Physical Properties | |
| Model | 20-100Mesh |
| Shape | Hollow spherical powder |
| Color | Light grey to white |
| Bulk Density | 0.30-0.45 g/cm³ typical |
| Floatation Rate | High floatation grade available |
| True Density | 0.70-0.90 g/cm³ / grade dependent |
| Particle Size | 20-100Mesh |
| Mohs Hardness | 5-6 |
▸ CENOSPHERE TDS (General) — for initial product introduction, customs declaration, and bidding documents.
▸ Oilfield Grade COA / Specification Sheet — floatation rate, density, sieve analysis, and oilfield specification data.
▸ 600 kg jumbo bags — approximately 20 bags per 40' High Cube FCL (total ~24 MT)
▸ 40' High Cube container recommended due to low bulk density (0.30-0.45 g/cm³)
▸ Custom packaging available upon request
▸ 10-year shelf life when stored in dry conditions
▸ Reliable container shipment to all major ports worldwide
▸ High floatation helps maintain uniform slurry or fluid density, reducing segregation during mixing, pumping, and placement.
▸ Yes. Low-density hollow cenospheres are used to reduce hydrostatic pressure in low-pressure, weak, or loss-prone formations.
▸ 20-100Mesh is the standard listed grade. Custom mesh or density ranges can be discussed for specific cementing or drilling programs.
▸ Yes. Batch COA, TDS, density, floatation, and sieve analysis documents can be supplied for project review.
▸ Yes. Samples are available for laboratory compatibility, density, and performance testing before bulk purchase.
▸ 0.8g/cm3 Cenosphere for Petroleum Cementing
Contact SEPPE for product specifications, samples, OEM packaging, and bulk pricing.
Request a QuoteSEPPE operates a fully integrated ISO 9001:2015 certified quality management system for oilfield cementing grade cenospheres (CenoLite 8540). Every batch undergoes rigorous testing to ensure floatation rate, density, particle size, moisture content, chemical composition, and compressive strength meet demanding downhole requirements.
▸Every batch of CenoLite 8540 passes through a comprehensive QC workflow from raw material selection to final shipment approval.
▸Testing protocols focus on key performance indicators for lightweight cement slurry systems used in oil and gas well cementing. Each batch undergoes rigorous verification.
| Test Parameter | Test Method | Specification | Typical Value | Frequency |
|---|---|---|---|---|
| Floatation Rate | Visual Inspection + Water Floatation | ≥ 97% | 98% | Every Batch |
| Bulk Density | ISO 787-10 | 0.30-0.45 g/cm³ | 0.38 g/cm³ | Every Batch |
| True Density | ISO 787-10 (Pycnometer) | 0.75-0.90 g/cm³ | 0.82 g/cm³ | Every Batch |
| Particle Size Distribution | Sieve Analysis (30M-240M) | 0-500 μm (106-250 μm dominant) | 106-250 μm | Every Batch |
| Moisture Content | ISO 787-2 (105°C, 2h) | ≤ 0.3% | 0.12% | Every Batch |
| Chemical Composition | XRF Analysis | SiO₂ 50-60%, Al₂O₃ 25-40%, CaO 1-1.5%, Fe₂O₃ ≤5% | SiO₂ 55%, Al₂O₃ 30%, CaO 1.2%, Fe₂O₃ 4% | Every 3 Batches |
| Compressive Strength | Hydraulic Pressure Test | 30-50 MPa | 40 MPa | Monthly |
▸Our in-house quality control laboratory is equipped with state-of-the-art testing instruments to ensure accurate and reliable measurement of all critical parameters:
• Laser Particle Size Analyzer (ISO 13320) – ensures precise particle size distribution for stable gradation in cement slurry systems.
• XRF Spectrometer – provides accurate elemental analysis (SiO₂, Al₂O₃, Fe₂O₃, CaO) to verify raw material and finished product consistency.
• Digital Density Analyzer – complies with ISO 787-10 for precise bulk density and true density measurement, meeting oilfield cement specifications.
• Moisture Analyzer – uses thermogravimetric analysis for accurate moisture content determination (≤0.3%), preventing negative impact on slurry performance.
• Hydraulic Pressure Tester (Compressive Strength Tester) – simulates downhole high-pressure conditions to verify the load-bearing capacity of cenospheres in set cement (30-50 MPa).
• Floatation Ratio Test Kit – ensures >95% floatation rate (98% typical) in standardized liquid media, preventing density segregation in cement slurry and guaranteeing uniform downhole performance.



• ISO 9001:2015 Certified Manufacturing & QC Process
• 100% Batch Testing with COA
• Full Traceability: unique batch IDs for raw material → finished product
• Third-Party Inspection: SGS/BV verification available
• Retained samples of every batch for ≥10 years
• Continuous improvement based on test data & feedback
30-50 MPa (typical 40 MPa) depending on batch and curing conditions.
Yes. SGS, BV or other independent inspection can be arranged prior to shipment.
Yes. Our team can develop custom testing protocols and batch specifications upon request.
Contact our oilfield technical team to discuss batch-specific COA, customized particle size distribution, or to schedule a factory audit.
Contact Oilfield Team