COreductie

Coreuction, also known as coreflooding, is a laboratory technique used to study the displacement of one fluid by another in porous media, such as rock or soil. This process is crucial in the field of petroleum engineering and environmental science, as it helps in understanding and optimizing the recovery of oil and gas, as well as the remediation of contaminated sites.

The coreflooding process typically involves the following steps:

1. Preparation of the core sample: A cylindrical rock or soil sample is collected and prepared by cleaning, drying, and measuring its dimensions and porosity.

2. Saturation of the core: The core is saturated with a wetting phase, usually water, by injecting it through the core at a constant flow rate until no more water is produced at the outlet.

3. Initialization: The core is then flooded with the non-wetting phase, typically oil or air, to establish initial conditions for the coreflooding experiment.

4. Coreflooding: The core is flooded with the displacing phase, such as water or gas, at a constant flow rate or pressure gradient. The displacement process is monitored by measuring the volume of the produced fluids and their compositions.

5. Analysis: The coreflooding data is analyzed to determine the displacement efficiency, residual saturations, and relative permeabilities of the fluids involved.

Coreflooding experiments can be performed under various conditions, such as different temperatures, pressures, and flow rates, to simulate real-world scenarios. The results of coreflooding experiments are used to develop and validate mathematical models for fluid flow in porous media, which are essential for the design and optimization of enhanced oil recovery and groundwater remediation processes.