Description

The FES 350 (Formation Evaluation System) is a fully automated laboratory apparatus designed to evaluate formation damage and permeability evolution under representative reservoir conditions. It reproduces the complete near-wellbore lifecycle by simulating drilling, completion, cementing, workover, cleanup, and stimulation operations on reservoir core samples. The system measures permeability, pressure drop, and fluid flow while allowing injection in forward, reverse, or face-flow directions to mimic realistic field conditions. It operates on sandstone, carbonate, and unconventional cores at temperatures up to 350°F (177°C) and confining pressures up to 6,000 psi (42 MPa). Fully programmable test sequences enable unattended operation with real-time data acquisition and analysis. The corrosion-resistant Hastelloy C-276 fluid manifold accommodates up to five test fluids, including acids and aggressive chemicals. By quantifying formation damage and permeability restoration, the FES 350 helps optimize fluid formulations and stimulation treatments before field implementation, reducing operational risks and improving well productivity.