Core Analysis

Routine Core Analysis (RCAL)

Routine Core Analysis examines core samples from oil and gas reservoirs to determine key properties such as porosity, permeability, and fluid saturations. These measurements help identify fluid-filled spaces within the rock, assess its ability to transmit hydrocarbons, and determine the presence of hydrocarbons. RCAL data is essential for understanding reservoir characteristics and plays a vital role in guiding decisions during exploration and production.

Helium Pycnometry and HPHT Sorption

✅ Effective porosity

✅ Grain volume

✅ Bulk volume

✅ Pore volume

✅ Crushed rock (cuttings) permeability

✅ Crushed rock (cuttings) diffusivity

✅ HPHT sorption isotherm

✅ Sorption/desorption rates

✅ Langmuir parameters (Vₗ, Pₗ)

✅ Gas diffusivity under reservoir conditions

Mercury Intrusion Prosimetry

✅ Pore size distribution
✅ Capillary pressure curve

✅ Capillary entry pressure

✅ Threshold pressure and seal integrity

✅ Bulk density and porosity

Special Core Analysis (SCAL)

Special Core Analysis (SCAL) involves advanced laboratory testing to better understand how fluids move through reservoir rocks. In addition to standard displacement experiments, SCAL includes core flooding, NMR, Mercury Injection Capillary Pressure (MICP), and other techniques to measure properties such as relative permeability, capillary pressure, wettability, and electrical behavior. These tests provide detailed insights into pore structure and fluid flow, helping guide reservoir management and development strategies.

Permeability and Core Flooding

✅ Gas permeability

✅ Brine permeability

✅ Oil permeability

✅ Slip-corrected gas permeability

✅ Stress-dependent permeability

✅ Relative permeability

✅ Dynamic capillary pressure

✅ Core flooding
✅ Recovery factor

✅ Displacement efficiency

NMR

✅ T1 and T2 relaxation times

✅ Pore size distribution

✅ Bound vs. free fluid volume

✅ Saturation

✅ Fluid typing

✅ Porosity

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