In this paper, we detail our results for the impact of MWCNT on the thermal and rheological properties of oil-based drilling muds. Our analysis considers the effects of time, temperature, and MWCNT volume fraction. The scanning electron microscopy imaging technique was used to monitor the MWCNTsdispersion quality. The experimental results unveil a considerable enhancement in the thermal conduct...

A new approach of prediction of Sidoarjo hot mudflow disaster area using cellular automata with probabilistic adjustment for minimizing prediction errors is proposed. Sidoarjo hot mudflow has some characteristics such as occurring in the urban area, huge-mud plumes, high-viscosity and surface temperature changes, so that it needs combined approaches of slow debris flow, and material changes cau...

The value rheology of drilling mud must be in accordance with the conditions wellbore that do not lead to occurrence problems at time drilling. One efforts improve is by adding Carboxymethyl Cellulose (CMC) which useful for increasing viscosity and binding water. This study aims identify effect on use CMC originating from jackfruit skin rheological properties mud. Jackfruit an underutilized org...

Horizontal directional drilling (HDD) is widely used in soil and rock engineering. In a variety of conditions, it is necessary to estimate the torque required for performing the reaming operation. Nevertheless, there is not presently a convenient method to accomplish this task. In this paper, to overcome this difficulty based on the basic concepts of rock engineering systems (RES), a model for ...

This study aims to evaluate the effect of wheat flour as a natural and environmentally friendly material on properties water-based mud. Recently, many experiments have been conducted with various additives improve drilling fluids. The using new additive fluid was studied rheological filtration properties. In laboratory several samples mud were prepared, different concentrations from 1 wt% 7 add...

When drilling an oil well, the well is lined by sinking a steel casing, or liner, into the drilling mud (see Figure 1). The inside of the liner forms a central pipe, and leaves an annular gap between the outside of the liner and the surrounding rock. The inside and outside of the liner are initially filled with drilling mud, which is displaced by pumping a sequence of fluids down inside the lin...

In this study, comparisons of the backscattering coefficients and the coherence values which had been extracted from SAR (Synthetic Aperture Radar) images such as JERS-1, ENVISAT and ALOS satellites with surface roughness, surface geometric and soil moisture content were carried out. As the results of analysis using the backscattering coefficient and coherence values from SAR images, the cohere...

Sustainable utilization of the bauxite residue (red mud) generated from alumina refining has recently increased due to environmental concerns because its high alkalinity and problematic pollutants when placed in landfills. This paper attempts review recent research findings utilizing red mud as a road material pavement structures literature, including bases asphalt mixtures. Previous laboratory...

Mud is a suspension of fine-grained particles (sand, silt, and clay) in water. The interaction clay minerals mud gives rise to complex rheological behaviors, such as yield stress, thixotropy, viscoelasticity. Here, we experimentally examine the flow behaviors kaolinite suspensions, model mud, using steady shear rheometry. curves exhibit both stress hysteresis for various volume fractions ([Form...