Free sample articles newly available from International Journal of Petroleum Engineering

The following sample articles from the International Journal of Petroleum Engineering are now available here for free:

• A permeability model for gas flow in coal considering the water content and slippage effect
• A technique to fight against formation damage via turbulence control for saltwater disposal
• Selection of friction reducer for slickwater fracturing to achieve both fracking robustness and production maximisation
• Gravitational sorption method for extraction of vanadium-containing oil from reservoirs with the use of redox polymers