to examine hydraulics of lnapls in soil, the retention curves of diesel fuel and water were both determined by hanging column method. the soil retention parameters were obtained based on van genuchten, brooks-corey and campbell’s models. in addition, the soil hydraulic conductivity for both fluids were predicted based on mualem- brooks-corey, burdine- brooks-corey, mualem-van genuchten and camp...

Summary Our objective is to present selected rheological and mechanical properties of rock-based geopolymers contaminated with different concentrations drilling fluids. The possible flash setting the maximum intake fluids before seeing a dramatic deterioration are presented. Rock-based designed for cementing conductor surface casing were prepared cured up 28 days at 22°C atmospheric pressure. W...

The main task of drilling the formation by the bit is done via scraping, crushing and grinding. Discharging the fluid from the bit nozzles is done with high pressure which assists to break the rocks. Different parameters affect the bit selection and design for each drilling formation, but the most important one is drillability that depends on hardness of the formation. In this paper, the design...