Abstract and Figures. The suitability of local barite as weighting agent in drilling mud was appraised using some physico-chemical parameters. Thirty samples, A, sourced from Obi in Nasarawa State ...
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A common weighting material used in the oil and gas industry is barite. In this work, the impact of barite concentration on water-based drilling fluid was evaluated. The investigated drilling ...
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This study evaluates the effectiveness of a synthetic clay (laponite) to prevent the static and dynamic sag tendency of barite-weighted drilling fluid for elevated-temperature drilling applications. Several high-density mud samples were prepared by varying the concentration of the synthetic clay. The sag tendency of the fluid samples …
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Because reservoir pressure usually increases with well depth, the concentration of barite in the drilling mud is increased as the well is drilled deeper (Neff et al. 1987). Barite is a soft, dense (4.1–4.5 g/cm3) natural mineral. Drilling mud barite is at least 92% pure (USEPA 1985), has a specific gravity greater than 4.2 g/cm3, and 97 ...
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The consistency index (K) increases as the barite concentration is increased, which indicated that the fluid becomes more viscous when barite …
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Filtration, Fluids, Permeability, Porosity, Viscosity. Abstract. Weighting agents such as barite, micromax, ilmenite, and hematite are commonly added to drilling fluids to produce high-density fluids that could be used …
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A common weighting material used in the oil and gas industry is barite. In this work, the impact of barite concentration on water-based drilling fluid was evaluated. The investigated drilling fluid properties are …
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PDF | On Jan 1, 2020, E. C. Ndubuisi and others published Effect of Barite Concentrations on Oil Based Drilling Mud Density and Rheology | Find, read and cite all the research …
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The yield point at 0% barite concentration gave the least yield point; this signifies that the barite concentration aids in the carrying capacity of the drilling mud. It was also observed that the barite concentration can be used to make the fluid more pseudo-plastic in nature.
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Barite-seawater and barite-porewater distribution coefficients (Kd) were calculated for determining the predicted environmental concentration (PEC; the bioavailable fraction) of metals from drilling mud barite in the water column and sediments, respectively. Values for Kd barite-seawater and Kd barite-porewater were calculated for …
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Weighting agents such as barite, micromax, ilmenite, and hematite are commonly added to drilling fluids to produce high-density fluids that could be used to drill deep oil and gas wells. Increasing the drilling fluid density leads to highly conspicuous fluctuation in the drilling fluid characteristics. In this study, the variation in the drilling fluid's rheological …
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Table of Contents. We can define oil based mud as a drilling fluid with oil as its continuous external phase, and the water, if present, is a dispersed or internal phase. The solids in an oil-based fluid are oil-wet, all drilling additives are oil dispersible, and their filtrate is oil. The water, if present, is emulsified in the oil phase.
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Separate drilling muds were formulated by varying the concentration of iron ore and barite to attain the same mud weight ranging between 9.0 ppg to 13 ppg at 77 0F (25 0C) and 104 0F (40 0C).
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However, Samples Azara (BaSO 4 77.76%), Kanam (BaSO 4 10.88%), and Baise (BaSO 4 83.16%) need beneficiation from gangue minerals to be comparable to imported barite for drilling mud application. However, they can be used as fillers or extenders in paper and rubber industries but require further upgrading to be used as …
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Effect of Barite Concentrations on Oil Based Drilling Mud Density and Rheology
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the concentration of barite in the drilling mud is increased as the well is drilled deeper (Neff et al. 1987). Barite is a soft, dense (4.1–4.5 g/cm3) natural mineral.
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The yield point at 0% barite concentration gave the least yield point; this signifies that the barite concentration aids in the carrying capacity of the drilling mud. It was also observed that the barite concentration can be used to make the fluid more pseudo-plastic in nature.
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Barite, a vital industrial mineral finds a wide array of utilizations most especially as a weighting agent in the drilling mud (specific gravity 4.42 g/cm 3). In this study, the purification of Azara (Nigeria) barite ore is eco-feasible and could by far place the nation among the global barite producers.
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Thus, understanding the effect of barite concentration on the rheological properties is of significant industrial interest, while it also is a challenging scientific problem due to the …
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The high volume, concentration, and discharge rate water-based drilling mud discharges (mud pit dumps) were identified as the most significant dispersal risk, but longer-range movement was limited ...
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Barite was received in powder form and conformed to the API specification. In contrast, ilmenite was received in coarse form and had to be grounded and sieved to meet the API specification [10], [11], [12].The mud weight of the considered mud samples were determined by using the conventional mud balance, while the rheological properties …
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A common weighting material used in the oil and gas industry is barite. In this work, the impact of barite concentration on water-based drilling fluid was evaluated. The investigated drilling ...
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The weighting material type and concentration have a significant impact on the drilling fluid properties. A common weighting material used in the oil and gas industry is barite. In this work, the impact of barite concentration on water-based drilling fluid was evaluated. The investigated drilling fluid properties are density, pH value ...
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Volume Calculations For drilling fluid. Mud system volume = the total volume of what is in the active pits plus that volume in the hole. Total mud volume = pit volume + hole volume. Pump output volume = that volume adjusted for pump efficiency. Duplex mud pumps have an approximate efficiency of 85–95%, whereas triplex pumps have an ...
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Barite sag is more predominant in oil-based mud. •. Barite sag could result in pipe sticking, lost circulation and well abandonment. •. Barite sag could be mitigated …
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Barite sag is a challenging phenomenon encountered in deep drilling with barite-weighted fluids and associated with fluid stability. It can take place in vertical and directional wells, whether in dynamic or static conditions. In this study, an anti-sagging urea-based additive was evaluated to enhance fluid stability and prevent solids sag in water …
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AMC BARITE™ is chemically inert to all drilling fluids additives and is used to increase the density of any drilling fluid system. AMC BARITE™ is added to a mud system to help control formation pressures, stabilise the borehole or used in kill fluids. ... Several factors will dictate the most appropriate concentration rate. Please contact ...
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Barite-seawater and barite-porewater distribution coefficients (Kd) were calculated for determining the predicted environmental concentration (PEC; the bioavailable fraction) of metals from drilling mud barite in the water column and sediments, respectively. Values for Kdbarite-seawater and Kdbarite-porewater were calculated for barium, cadmium ...
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Consideration must be given to the effects of the presence of drilled solids and barite on different types of drilling fluids: water-based and nonaqueous fluids (NAFs), unweighted and weighted.. The effects of solids in unweighted fluids, regardless of what their base fluid may be, do not present a problem unless their concentration is allowed …
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The highest concentration of Ba was in drilling mud, additives to heavy water-based mud, and barite. The main use of barite is in heavy water-based mud, which is used for drilling marl, limestone, and shale formations. Therefore, Ba concentrations are high in the waste of these formations. On the other hand, the highest concentration of …
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Effect of Barite Concentrations on Oil Based Drilling Mud Density and Rheology. IJAERS Journal. Drilling fluid is an essential element to the drilling process as most drilling …
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