The Porosity and Permeability Measuring Device is designed to accurately assess two critical characteristics of reservoir rocks: porosity and permeability. These properties are essential for understanding the storage capacity and fluid flow within the reservoir, directly impacting the efficiency of extraction processes. The device uses nitrogen expansion to measure the grain volume of cleaned and dried samples, and by combining the grain volume with the total volume of the sample, porosity is determined. Permeability is evaluated by measuring the flow rate of fluid through a saturated rock sample, providing reliable data for optimizing reservoir management and extraction processes.

Performance

The device operates based on Boyle's Law (the ideal gas law) to measure the porosity of reservoir rocks. By calculating the grain volume and combining it with the total volume of the sample, porosity is precisely determined. The nitrogen expansion process is used to directly measure the grain volume.

For permeability measurement, the device utilizes the principles of fluid dynamics to assess the fluid flow rate through the saturated rock sample. By measuring the pressure drop across the sample, permeability is accurately calculated, offering vital data to predict fluid flow and optimize extraction operations.

Technical Specifications

• Pressure Sensors: Accurate internal pressure measurement for more precise results
• Manometer: Accurate pressure measurement of the system for correct evaluation
• Metering Valve: Provides precise control over fluid flow for accurate permeability measurements
• Regulator: Maintains constant pressure during the measurement process
• Core Holder: Secures the rock core during testing
• Flow Meter: Measures the fluid flow rate through the sample
• Confining Port: Applies pressure to the sample from both the front and rear
• Gas Inlet and Outlet Ports

Porosimeter Specifications

• Core Diameter: 1 and 1.5 inches
• Core Length: Up to 5 inches
• Ambient Temperature
• Operating Pressure: Up to 700 psig
• Pressure Sensor Accuracy: 0.1% of Full Scale (F.S.)
• Gas Used: Nitrogen (N2) or Helium

Permeameter Specifications

• Pressure: Up to 3 bar (working pressure)
• Confining Pressure: Up to 700 bar
• Flow Range: 0-500 cc/min
• Core Length: Up to 5 inches
• Core Diameter: 1.5 inches

Advantages

• Accurate Porosity Measurement: Utilizes nitrogen expansion for direct grain volume measurement
• Reliable Permeability Results: Fluid dynamics principles for precise fluid flow measurement through the sample
• Optimized Reservoir Management: Provides essential data for improving extraction processes and reservoir management
• Versatile Testing: Suitable for various rock sample types, offering flexibility in testing
• Durable and Reliable: Made from high-quality components to ensure accuracy and long-term performance

Applications of the Porosity and Permeability Measuring Apparatus

• Reservoir Rock Analysis: For evaluating storage and fluid flow properties during exploration and production phases
• Oil and Gas Industry: Optimizing extraction processes and managing reservoirs effectively
• Geological Research: Used in laboratories to study the physical characteristics of various rock types
• Energy and Mining Industries: Helps in understanding the storage capacity and fluid flow of mineral resources and other materials