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ABSTRACT
Drilling fluids must be properly suited to particular subsurface lithology to efficiently carry out its primary functions of suspension and removal of cuttings, while being as cost effective as possible. Over the years, research is constantly directed at this effort. The aim of this experiment is to determine the viability of Nano-Particle (NP) (Fe2O3) as a useful drilling fluid additive, as they have recently become an important focus in drilling fluid research trend. Iron (III) oxide (Fe2O3) Nano-particle was varied by weight as an additive to fresh mud samples and its properties such as rheology, density, filtration were determined from laboratory experiments. Other tests conducted include methylene blue test and PH. The result obtained were compared with those obtained from fresh mud with the standard additives (such as CMC and Barite). The result obtained show that increasing concentration of the Nano-particle reduced the fluid loss. The lowest fluid loss at 1.5g of NP was 88ml. The NP-base mud deposited thin smooth and firm filter cake. It also showed increasing CEC as the concentration was increased. The NP-base mud showed decreasing PH as the concentration increased, the rheological properties of the NP-base mud however showed insignificant deviation from that of fresh mud. It was discovered that the NP is a potential PH modifier, a potential low circulation material (LCM) and possessing a high potential for reducing differential pressure sticking problem, formation damage etc due to it’s thin, smooth and firm filter cake deposited.
