Intro Mud Viscosities and Other Rheological Properties

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INTRODUCTION In this experiment, we are determine the rheology of the drilling mud using viscometer. Rheology is refer to deformation and flow behavior of all forms of matter. Rheological measurements made on fluids such as, plastic viscosity, gel strength, and yield point help to determine how the fluid will flow under variety of different condition. As we know, the deeper we drill the well, the higher the pressure of formation. Rheological of the drilling fluid is important to determine the suitable mud to be use in that area. Such information is important in the design of circulating systems required to accomplish certain desired objectives in drilling operations. Rheology is an extremely important property of drilling mud, drill-in fluids, workover and completion fluids, cements and specialty fluids and pills. Mud rheology is measured on a continual basis while drilling and adjusted with additives or dilution to meet the needs of the operation. In water-based fluids, water quality plays an important role in how additives perform. Temperature affects behavior and interactions of the water, clay, polymers and solid in the mud. Downhole pressure must be taken into account in evaluating the rheology of oil muds. Viscosity is another important properties of mud that we must know. Viscosity of fluid by definition is its resistance to flow. In drilling, viscosity is important mud properties to be controlled to ensure smooth drilling operation. Drilling mud must have high enough viscosity to transport the drill cuttings from bottom hole to the surface. This is to ensure that the cuttings could be removed at the minimum velocity of the mud pump. In this experiment, we are using Marsh Funnel to test on the viscosity of the

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