Blessing Otamere

Multiphase flow is defined as the simultaneous flow of two or more phases (e.g., gas, oil, water, or solid). When operating petroleum production facilities such as pipelines, this is a normal flow. As a result of complexity, the physical phenomenon governing them than that of single-phase flow, a production engineer's ability to effectively conduct a research on this system would necessitate a thorough understanding of the system to aid in its optimal operation. The study's objective is to create a CFD model using the ANSYS version 19.1 platform, validate the model with experimental data, and review studies and the employed model to estimate the critical velocity of a sand particle in a slurry flow and the particle's erosional effect for a pipe of a particular diameter (0.07m) Based on literature reviews and comparative studies, the Eulerian model with Reynold Stress Model (RSM) turbulence closure was chosen as the best model to analyze multiphase fluid flow. The research combines validation work in all feasible scenarios to evaluate the creation of the CFD model with a parametric analysis to look at the effects of various factors on particle deposition. Pipe diameters of 0.02 – 0.07m, continuous phase flow rates of 0.1-1 m/s, and other parameters were investigated. In conclusion, ANSYS version 19.1 platform is a valid way of analyzing multiphase flow in pipelines, proven using historical experimental data. Laminal flow is suitable for suitable fine particle and yields minimal erosion when its velocity is above the particle critical velocity. While coarse particles are transmitted by turbulence flow, with reducing erosion as the velocity increases above the critical velocity

In this study, the effect of two food waste materials, cassava peels, and plantain peels as local environmentally-friendly additives,on the pH, mud weight, viscosity and the fluid loss properties of water based mud was evaluated. The water based mud samples were formulated using bentonite, barite, distilled water with cassava peels and plantain peels in varying weight proportions. Mud weight and pH measurements, viscosity and the volume of fluid loss were measured. Experimental results indicated that at same concentration, the cassava peels had higher rheological properties compared with the plantain peels. However, the muds formed from the combination of cassava and plantain peels have better filtration control properties. Although the viscosity of the drilling fluid produced from the plantain peels were lower than that of the cassava peels, the cassava peels shows a
lower fluid loss than the plantain peels. Therefore, with proper quality control efforts, they could be used as a drilling mud additive for exploration and exploitation of oil and gas in Nigeria. It is also hoped that this work will open new market for the use of cassava and plantain waste.

In this study, the effect of two food waste materials, cassava peels, and plantain peels as local environmentally-friendly additives, on the pH, mud weight, viscosity and the fluid loss properties of water based mud was evaluated. The water based mud samples were formulated using bentonite, barite, distilled water with cassava peels and plantain peels in varying weight proportions. Mud weight and pH measurements, viscosity and the volume of fluid loss were measured. Experimental results indicated that at same concentration, the cassava peels had higher rheological properties compared with the plantain peels. However, the muds formed from the combination of cassava and plantain peels have better filtration control properties. Although the viscosity of the drilling fluid produced from the plantain peels were lower than that of the cassava peels, the cassava peels shows a lower fluid loss than the plantain peels. Therefore, with proper quality control efforts, they could be used as a drilling mud additive for exploration and
exploitation of oil and gas in Nigeria. It is also hoped that this work will open new market for the use of cassava and plantain waste.