... 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...

... velocities up to 32 m/s 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...

... especially at zero bend angle and zero mass flow rate where the pressure drop should be equal to straight pipe and approaching zero velocity respectively. Ultimately B-type correlation given by Chisholm [5] was considered the most suitable correlation for two phase flows. flow pattern ls 0...

... 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 m/s to 1.0 m/s . Flow pattern maps, local phase fraction, and pressure gradient measurements are shown. Significant influence of the pipe inclination was found. This effect became...

... 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...

... 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...

... facility processes – to be able to handle multiphase flow, and the different flow patterns that could be promoted through pipelines. In the case of heavy and extra heavy oil fields, hydrodynamic slug flow is the most common flow pattern. For this reason, it is important to know how this flow pattern...

... Abstract Viscous liquid-gas two-phase flow experiments with liquid viscosity ranging from 1000 – 5000 cP (1.0 – 5.0 Pa.s) and air as the gas phase were compared with the point model simulations obtained from OLGA, a multiphase flow simulator. Flow patterns, pressure gradient, mean liquid...

... 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...

... 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 with diameter 25.4 and 19.0mm...

... transducer instrument reservoir surveillance void fraction concentration oil-air mixture flow pattern Development of a multiphase flow metering procedure based on the ultrasonic technique J L Goncalves, T A Paiva, J R Abud-Jr, R D M Carvalho, O J Venturini Universidade Federal de Itajubá, Instituto...

... ABSTRACT The present results show experiments in which drag-reducing polymers (DRP) were added to air-water flow in horizontal pipes. It has been noted that the pressure drop reduction occurs almost in all flow pattern configurations, but the more interesting aspect is the findings...

... 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...