...1 PAPER 2009-042 Frictional Pressure Loss Estimation of Non-Newtonian Fluids in Realistic Annulus with Pipe Rotation M. E. OZBAYOGLU1 Middle East Technical University, Petroleum & Natural Gas Engineering Dept. M. SORGUN Middle East Technical University, Petroleum & Natural Gas Engineering Dept. 1...

... Abstract Accurate estimation of pressure losses associated with fluid flow in annuli is essential to achieve better bottom hole pressure control in drilling operations. Control of formation pressures and optimization of hydraulic programs can be obtained only if the pressure losses...

... the flow pattern and frictional pressure losses of two-phase fluids flowing through horizontal annular geometries using Artificial Neural Networks (ANN) rather than proposing a mechanistic model. Experimental data collected from experiments conducted at Middle East Technical University, Petroleum...

... Abstract One of the advantages of Managed Pressure Drilling (MPD) is to determine formation pressures and fracture gradients while drilling. However, in order to determine these pressures accurately, the rheological model of the drilling fluid and pressure losses accruing in annulus should...

... & gas viscosity diameter drilling fluid property equation pressure loss ecd flow rate machine learning drilling fluids and materials offshore well back pressure relation plastic viscosity reynolds number pressure drilling coefficient onshore well drilling fluid chemistry drilling...

... Abstract Slim-hole drilling has gained wide acceptance in the petroleum industry. However, it presents a new set of challenges and problems. One of such challenges is reducing annular pressure losses (APL). Due to the reduced annular clearance in slim-hole wells compared to conventional wells...

... of the separator as illustrated in Figure 4; (5) The intake pressure of the pump can be calculated by: 1in lsP P P= (3) Where Pin is the intake pressure of the pump, Pa; Pls is the pressure of lower outlet of the separator, Pa; P1 is the pressure loss between the separator lower outlet and the pump intake, Pa...

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... and the use of the Fann viscometer 6- dial readings in the hydraulic model. Field data of a well drilled with a water-based and oil-based mud in Oklahoma was used to validate the software. The measured frictional pressure losses for two (2) hole sections were matched with those obtained using the three models...

.... Publication rights are reserved. This is a pre-print and subject to correction. Abstract Modeling of gas gathering systems is often complicated by the presence of localized pressure losses that are not easily explained using steady-state two-phase correlation packages. This often leads to inappropriate...

... Abstract This paper compares the measured wellbore pressure losses from a variety of gas-condensate and gas-water wells with the results from the following steady-state multiphase correlations: Aziz, Govier and Fogarasi (1) Hagedorn and Brown (2) Beggs and Brill (3) Beggs...

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... pressure loss compressibility open hole drilling fluid property pulsation drilling fluid management & disposal plug flow transmission drilling fluid formulation equation 1PETROLEUM SOCIETY CANADIAN INSTITUTE OF MINING, METALLURGY & PETROLEUM PAPER 2002-240 Design of Cement Pulsation...

... Abstract This paper discusses the implementation of a discretized wellbore simulator fully implicitly coupled with the grid cells in a thermal compositional simulator. The computational of pressure losses due to multiphase frictional effects and flow regimes in the wellbore cells is handled...

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