Expert Crude Oil Assay Services for Evaluating and Optimising Crude Oils in Refinery Operations
Intertek Caleb Brett’s Crude Oil Assay services deliver comprehensive, reliable, and timely analytical data for the global petroleum industry. With state-of-the-art laboratories and decades of experience, we support oil producers, refiners, traders, and downstream users with detailed crude oil characterisation, enabling informed decision-making for trading, refining, and compliance.
Why Crude Oil Assay Matters
Each crude oil has a unique chemical profile. Understanding its physical and chemical properties is essential for:
- Refining optimisation: Maximise yield and minimise operational issues by matching crude oils to the right refining processes.
- Trading and valuation: Accurate assay data helps determine market value and negotiate contracts.
- Regulatory compliance: Meet environmental and product quality regulations globally.
- Blending strategies: Improve product consistency and optimise refinery feedstock.
Intertek’s Crude Oil Assay Capabilities
Intertek’s global network of laboratories offers industry-leading crude oil assay services, including:
- Full and mini crude oil assays: Detailed distillation, fraction analysis, and property testing, tailored to client requirements.
- Physical property analysis: Density, API gravity, viscosity, pour point, and more.
- Chemical composition: Sulfur, nitrogen, trace metals, and hydrocarbon group-type analysis.
- Fractional distillation: ASTM D2892 (atmospheric) and D5236 (vacuum) distillation for true boiling point curves.
- Product yield evaluation: Gasoline, diesel, kerosene, residuals, LPG, and more.
- Contaminant and impurity screening: Identifying metals, salts, and organics that may affect processing and product quality.
- Blending and compatibility studies: Support for custom blends, quality control, and troubleshooting.
Who Uses Crude Oil Assay Services?
- Refiners: Optimise crude selection and processing.
- Producers and traders: Understand product value and support trading activities.
- Pipeline operators and terminals: Monitor quality and custody transfer.
- Government agencies: Ensure compliance with national standards and regulations.
Intertek Caleb Brett offers unmatched global reach with assay laboratories strategically located in key oil hubs around the world. Our team brings decades of expertise, having analysed thousands of different crude oil types for a wide range of clients. We pride ourselves on fast turnaround times, supported by streamlined logistics and efficient reporting to help you meet tight deadlines. With Intertek, you benefit from Total Quality Assurance, delivering accurate, reproducible results you can trust from industry-leading experts.
Frequently Asked Questions
A crude oil assay is a detailed chemical and physical characterisation of a crude oil sample, typically including distillation, property analysis, and compositional data.
Crude oil assays help refiners, traders, and producers determine how a crude oil will perform in processing, what products it will yield, and its overall market value.
A standard assay includes distillation (ASTM D2892 and D5236), density, API gravity, sulfur, nitrogen, metals, and fraction property analysis. Additional tests can be tailored to your requirements.
Turnaround time depends on the extent of the analysis and logistics, but Intertek provides expedited services with clear communication and reliable timelines.
Yes, Intertek regularly assays both well-known and new crude streams, helping clients understand the characteristics and commercial value of emerging grades.
Intertek operates crude oil assay labs globally, including North America, Europe, Asia, the Middle East, and Africa, ensuring local support and rapid sample handling.
Intertek provides comprehensive, easy-to-understand reports including distillation curves, yield tables, property data, and expert interpretation.
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