Resource utilization from solid waste originated from oil-based shale drilling cutting during shale gas development.

With the large-scale development of shale gas, oil-based drilling fluids are widely used, generating significant amounts of solid wastes from oil-based shale drilling cutting (OBSDC). These solid wastes are biologically toxic and are difficult to degrade. The current treatment methods do not meet the requirements for oily sludge.

Effects of Fe and Al ions during hydrogen sulphide (HS)-induced corrosion of tetracalcium aluminoferrite (CAF) and tricalcium aluminate (CA).

With high concentration and toxic HS gas found in sewage facilities, it has ultra-high leakage risk and great environment impact, once the sealing material failure. In this study, hydrogen sulphide (HS)-induced corrosion effects of tetracalcium aluminoferrite (CAF) and tricalcium aluminate (CA) phases of cement were evaluated during the initial stages of reaction. Both phase changes and bond structures were examined by techniques including Fourier transform infrared spectroscopy (FTIR).