... for high pressure applications to quantify flow structures. 1 INTRODUCTION During the extraction of oil from a well, a multiphase flow exists which comprises time-dependent ratios of oil, water and gas. The ratio of the 3 phases will lead to various flow patterns dependent on the ratios of gas...

... behavior, specifically flow pattern. Current two-phase flow mechanistic models were developed, validated, and tuned based on low-liquid viscosity two-phase flow data for which they show accurate flow pattern predictions. The objective of this study is to investigate the effect of liquid viscosity on two...

... and turbulent, in both the gas and liquid phase simultaneously. Interfacial elevation measurements using Conductance Probes (CP) provides interfacial flow pattern statistics such as wave heights and wave frequencies. Hot-Wire Anemometry (HWA) measures turbulent fluctuations in the gas-phase with high...

...Flow pattern transition model for gas-highly viscous fluids in horizontal pipelines A Brito, R Cabello, J Marquez PDVSA Intevep, Venezuela J Trujillo GALP Energy, Portugal N Guzmán Lone Star College, USA ABSTRACT The increasing world oil demand has led to develop the large heavy and extra heavy oil...

... oil superficial velocity production logging nominal oil viscosity mean liquid holdup production control artificial intelligence upstream oil & gas slug frequency reservoir surveillance prediction multiphase flow simulator viscosity gas superficial velocity flow pattern slug...

... for a constant liquid superficial velocity of 0.005 m/s. In the transitional region from stratified to slug flow patterns, a different and coherent flow structure has been observed. This flow pattern has been classified as pseudo-slugs consistent with the existing literature. The current study also investigates...

... was completed. The consistency of the results was checked through data analysis process which included estimating the probability density functions (PDF), frequency and structure velocities. The PDF plots of cross section averaged void fraction time series data was used to identify the relevant flow pattern...

.... The pipe inclination was gradually changed from 5 ° to +5 °. In-put water cuts from 0 % to 100 % were covered. The mixing velocity was varied from 0.1 to 1.0 Flow pattern maps, local phase fraction, and pressure gradient measurements are shown. Significant influence of the pipe inclination was found...

... gradients in oil-water flows from reported studies has shown to vary considerably due to the dependence of the pressure gradients on many factors which include oil properties, pipe geometry, pipe orientation, and oil-water flow patterns. (3) observed that the properties of pipe wall such as roughness...

... measurements and high-speed photography in an effort to obtain a flow pattern map, pressure gradient profiles and measures of the in situ phase fractions. The experiments reveal a particular effect of the inlet configuration on the observed flow patterns. A horizontal plate, installed at the inlet, generates...

... flow pattern relative viscosity transportation turian slurry upstream oil & gas asphaltene remediation Heavy oil transportation as a slurry A Brito, R Cabello, L Mendoza PDVSA Intevep, Venezuela H Salazar UDO, Venezuela J Trujillo MSi Kenny, Australia ABSTRACT Heavy oil transportation...

... ABSTRACT The flow pattern dependant mechanistic formulations found in the scientific literature for modelling the pressure gradient and liquid content of gas and liquid flow in wells have evolved considerably in the past twenty five years. This paper tries to answer the question of how well...

... the pressure drop by about 40% polymer amplitude multiphase flow upstream oil & gas interfacial wave usw 0 enhanced recovery bhr group 2013 oil-water flow international journal production control flow pattern map pressure drop drag reduction production monitoring reduction polymer...

... of Chemical Engineering, Ahmadu Bello University, Nigeria ABSTRACT The introduction of small amount of drag reducing polymer (DRP) to horizontal oil- water flow is known to influence flow pattern and pressure drop along the flowline. In this study the efficiency of DRP on two pipes made from acrylic material...

... is restricted to truly homogeneous flows. Broad beam gamma densitometer Advantages over single-beam offset by need for careful determination of collimator shape. Multi-beam gamma densitometer Well established for void fraction and flow pattern measurements; errors due to phase distribution. Microwave resonance...

.... It has been noted that the pressure drop reduction occurs almost in all flow pattern configurations, but the more interesting aspect is the findings that the addition of drag reducing polymer alters the flow pattern transition. The studies were carried out for air-water flowing in a horizontal...

... The oil-water stratified flow pattern is common in the petroleum industry, especially in offshore directional wells and pipelines. Using the experimental rig of the Thermal-Fluids Engineering laboratory of the Engineering School of Sao Carlos at University of Sao Paulo, stratified and semi...

... as a result of pressure drops in the oil field, well and pipework before the suction side and decreases because of the pressure difference boosted by the MPP. Different gas volume fractions and flow patterns are measured by an electrical capacitance tomography (ECT) system. The operation quantities of the MPP...

... ABSTRACT Experiments were conducted to investigate low liquid loading, gas-oil-water flow behavior in a 152.4-mm ID (6-in) horizontal pipe at different gas flow rates, liquid loading levels and water cuts. Gas-liquid flow patterns and oil-water distributions were observed. The measurements...

... testing flow pattern upstream oil & gas production monitoring bhr group 2009 production control drillstem testing pressure gradient transition annular flow imperial college flowrate void fraction steady state slug flow reservoir surveillance An experimental study of wellbore phase...