..., toe-down, one-undulation with a sump, and one-undulation with a hump. Slug length and frequency along the well were measured using fourteen conductivity probes located along the test section. Experimental results indicated that slug length in the vertical and lateral sections of a well present values...

... to provide the required excitation to the actuator, force and displacement sensors and signal conditioning and data acquisition units. These provide force, displacement and frequency data to a novel model which has been developed, from first principles, to accurately predict the density of the flowing...

... between flow forces on the internal jumper wall and the corresponding deformation of the jumper system. Further, spectral analysis is employed to capture the resonant frequencies and vibration modes. Finally this paper discusses how state of the art MEMS based vibration sensors can be integrated...

... frequency give a basis for a good force prediction. In general for multiphase conditions, the PSD shows a top-hat configuration. With the PSD, the force on a bend can be estimated. However, bends are never present isolated from the rest of the piping. For a complete structure, the forces on all bends...

... reservoir surveillance production monitoring gas injection gas lift efficiency gas structure injector gas superficial velocity frequency pipe injection point void fraction cap injector geometry time series multiphase 10 bhr group 2016 production logging different injector production...

... Abstract Over ten different slug frequency models/correlations were evaluated against experimental data as a part of this study. The effect of parameters such as pressure and flow development length on slug frequencies were studied and comparisons with model predictions were made...

... and liquid film height vary out-of-phase with each other. The wave frequency is found to be sensitive to the changes in v SG for v SL = 0.02 m/s. liquid holdup production monitoring bhr group 2014 wave celerity flow rate production logging frequency reservoir surveillance upstream...

.... calculation mixture permittivity viscosity high salinity permittivity model brine saudi arabia government enhanced recovery bhr group 2014 salinity hanai equation conductivity frequency hanai equation conformance improvement multiphase mixture low frequency hanai equation frequency equation...

... ratios (WLR>85%). This is in accordance with theory. frequency pre-magnetization section multiphase flow bhr group 2014 reservoir surveillance flow rate flow velocity water liquid ratio magnetization production monitoring resonance pre-magnetization length magnetic field experiment...

... reflection interface probe frequency hydrate plug Hydrate plug localization and characterization with ultrasonic and guided waves technologies L Pomié, Ch Tzotzi Technip, France C Faderne, B Chapuis, F Jenson CEA France (Commissariat à l Energie Atomique et aux Energies Alternatives) 1 INTRODUCTION...

... Abstract Looped pipelines are evaluated as a method of reducing outlet flow rate fluctuations in multiphase pipelines operated in slug flow. The interference between the slug frequencies of the two pipelines is shown to be largely destructive in nature and acts to reduce outlet flow rate...

... surface, combined with the Very-Large Eddy Simulation (VLES) approach to cope with turbulence. We will first discuss new results of transition from stratified to slug flow, which agree well with the data as to water hold-up and slug frequency. We will then present new results of bubbly and slug flow...

... test line bhr group 2012 simulation production monitoring different olga version tendency riser gas injection operating data olga version drillstem/well testing ledaflow simulator artificial lift system frequency olga 7 reservoir surveillance separator topsides case 1 flowrate...

... ABSTRACT: Slug frequency is a critical characteristic of two-phase slug flow for predicting pressure gradient, erosion/corrosion rates, pipeline structural integrity and designing downstream separation and process facilities. Conversely, slug frequency is the least accurately predicted...

... single phase flow frequency Forces on bends and T-joints due to multiphase flow S P C Belfroid, W Schiferli, M F Cargnelutti, M van Osch TNO Science and Industry, The Netherlands 1 ABSTRACT Forces on bends and T-joints have been measured in a one inch diameter horizontal air- water setup for all flow...

... geometry flow rate liquid flow rate bhr group 2010 artificial intelligence slug frequency equation holdup gas flow rate terrain upstream oil & gas riser momentum balance inlet pressure sl 0 experiment Dynamic multiphase flow models for control C Martins da Silva 1,3, F Dessen 2, O J...

... and correlate the frequency and magnitude of coherent turbulent flow structures and to quantify the selective radial transport (grading) of particles from the moving bed onto the main turbulent flow. A preferential removal of coarser particles (from a bed containing fractions from 0.1–100 μm of glass beads...