Online Sampling and Analysis
Online sampling and analysis technologies are critical tools for real-time monitoring and decision-making in oil field operations. These technologies provide continuous, automated collection and analysis of fluids (oil, gas, and water), enabling operators to optimize production, ensure safety, and meet regulatory requirements.
ScanWell specializes in online sampling and analysis applications such as:
- Continuous online gas compositional analysis (C1-C6, CO2, H2, N2, He etc..) using advanced optical analysers
- H2S trending for reservoir souring studies and optimization of sour production
- GC analysis for hydrocarbon gas and liquid
- Produced water quality trending including conductivity, turbidity, pH, and salinity
- Environmental analysis of discharged water including scavenger reaction products, oil in water, etc..
- Emulsion monitoring and ECT imaging
- Solids sampling and characterization studies including sand and asphaltenes
How Online Sampling Works
- Fluid Extraction:
- Samples are extracted from production streams, pipelines, or reservoirs without interrupting the operation. This is achieved through specialized sampling ports or probes.
- Conditioning:
- Extracted fluids are conditioned (e.g., pressure and temperature adjusted) to match the requirements of the analysis system.
- Automated Analysis:
- Advanced instruments measure parameters such as composition, flow rate, temperature, pressure, and impurities.
- Real-time data is transmitted to a monitoring system for interpretation and action.
Key Technologies for Online Sampling and Analysis
- Chromatography Systems
- Used for separating and analyzing chemical components in gases and liquids.
- Applications: Hydrocarbon composition analysis, gas-to-oil ratio determination.
- Spectroscopy Systems
- Include infrared (IR), ultraviolet (UV), and Raman spectroscopy.
- Applications: Measuring water content, chemical impurities, and crude oil quality.
- Multiphase Flow Analyzers
- Measure the proportions of oil, water, and gas in production streams.
- Applications: Reservoir performance evaluation and production optimization.
- Pressure and Temperature Sensors
- Provide real-time data on well and pipeline conditions.
- Applications: Monitoring operational safety and optimizing flow rates.
- Tracer-Based Systems
- Use chemical or radioactive tracers for detecting flow patterns and leaks.
- Applications: Flow assurance and integrity monitoring.
Advantages of Online Sampling and Analysis
- Real-Time Monitoring: Delivers immediate insights, allowing for proactive operational adjustments.
- Increased Efficiency: Reduces the need for manual sampling and laboratory testing.
- Improved Safety: Minimizes human intervention in hazardous environments.
- Cost-Effective: Reduces downtime and operational disruptions.
Applications in Oil Fields
- Production Monitoring:
- Tracks water cut, gas-to-oil ratios, and multiphase flow dynamics.
- Reservoir Management:
- Analyzes fluid properties to assess reservoir performance.
- Pipeline Integrity:
- Detects corrosion, scaling, and impurities that may impact flow.
- Enhanced Oil Recovery (EOR):
- Monitors injected chemicals and their effects on production.
- Environmental Compliance:
- Ensures produced water and emissions meet regulatory standards.
Online Sampling and Analysis
Online sampling and analysis technologies are indispensable in modern oil field operations, providing the data and insights needed for efficient, safe, and sustainable resource management.
