... liquid content remains close to the low liquid content equilibrium. This work studies an undulated 120-mile long and 32-inch ID gas pipeline operated at a relatively low flowrate, corresponding to gas velocities below the critical velocity. A transient multiphase flow simulator is used to model...

... for four conditions in the Taitel & Dukler flow pattern map. Furthermore, simulations were made for two cases resembling real operational conditions confirms the predictive capacities of the model for industry. 1. INTRODUCTION O&G field developments are significantly challenged...

... pressure is 4 [bara]. In this paper selected experimental results and observations will be presented, supporting increased understanding of the underlying physical phenomena and the coupled system instability resulting from interaction between the different process elements. Selected OLGA simulations...

... with a one-dimensional multiphase flow simulator. The hydrate formation and particles size are handled with a Population Balance framework and a more classic framework. For simulations of hydrate-forming oil-dominated flows in an experimental flow loop, the hydrate cut, subcooling, slurry viscosity and water...

... The use of sphering for liquid management is widely employed on gas condensate export pipelines. Field data for routine ‘undersized’ sphering operations of a 20" gas condensate pipeline was analysed, and OLGA (v2015.1.1 & v2017.1.0) simulations set up to try and match the displaced surge...

... oilfield chemistry asphaltene remediation simulation scale inhibition reservoir surveillance pipeline pigging gradient thickness hydrate inhibition prediction asphaltene inhibition bulk fluid hydrate remediation bhr group mpt2019 deposition process precipitation production monitoring...

... of coupling hydrodynamic flow descriptions with fundamental descriptions of hydrate growth rate and particle transportability. Traditional simulation strategies have isolated hydrodynamic predictions from hydrate-specific calculations, precluding a direct coupling of both phenomena when describing...

... be located in vertical, deviated, and horizontal wells. To make an optimal design and operation of ESP, it is beneficial to be able to simulate the steady state and transient thermal-hydraulic behaviour of the ESP system including the well tubing, the reservoir and the wellbore. Simulations will help...

... on correlations. production logging production monitoring olga-hd 2016 upstream oil & gas water cut bulk velocity simulation reservoir surveillance flow metering bhr group 18 production control elseth dispersion layer pipe interface mixture velocity pressure drop velocity profile...

... ABSTRACT Turbulent Poiseuille flow of two immiscible liquid layers inside a rectangular channel has been performed adopting a Direct Numerical Simulation of wall bounded flow, coupled with the Phase Field Model (PFM). A thin liquid layer flows on top of a thick liquid layer, their thickness...

... distribution header pipe header droplet liquid pool liquid distribution production control simulation flow assurance wall film production monitoring Åsgard subsea compression inlet cooler development, qualification and operation of world s first passive multiphase subsea cooler A Lauvdal, H...

... ABSTRACT Simulation tools are used extensively for the design and for the improved operations of oil and gas production systems. Most of these simulations are carried out with steady and transient one-dimensional tools, such as PIPESIM, OLGA and LedaFlow. For some applications, however...

..., and the other riser accumulates liquid. This unequal split is unwanted from the operational point of view, as it leads to a larger pressure drop over the risers and liquid accumulation in one riser. The instability is also studied in a design study of a gas-condensate field with 1D simulations. It is shown...

... Abstract A mechanistic model has been developed for the rate of initiation of hydrodynamic slugs and has been coupled with improvements in the closure models for slug flow. The resulting Slug Tracking simulator is capable of predicting the slug frequency and slug length distribution...

... (ITM), implemented in the commercial code TransAT®, are employed to simulate the motion of Taylor bubbles in slug flow. Therefore, a numerical database is being generated to develop a new, high-fidelity closure relation for the Taylor bubble velocity as a function of the fluid properties and flow...

... Three-dimensional computational fluid dynamics (CFD) simulations were carried out with ANSYS Fluent 15.0 for the splitting of two-phase, gas-liquid flow from a horizontal flowline to two vertical risers. This piping configuration is representative of what is being envisioned for transport of gas...

... investigates the usage of Computational Fluid Dynamics (CFD) to predict realistic forcing functions that could be used to analyse stress and fatigue in complex combinations of bends and tees, typically seen in subsea flow-lines, manifolds and jumpers. When simulating multiphase flow through a complicated pipe...

... Abstract Measurements and CFD simulations of multiphase flows provide significant insight and details that can be used by engineers to design multiphase flow pipelines. This study uses experimental results obtained with a Wire Mesh Sensor (WMS) to validate CFD results for multiphase flow...

... surveillance production control bhr group 2015 upstream oil & gas supercritical flow biberg critical point equation holdup critical holdup flow rate simulation production logging liquid superficial velocity inclination international conference production monitoring liquid holdup...

... compared to the accumulation point experiments. We have also compared the time needed to remove the liquid for a fully transient simulation of experiments with ramp-up into the multiple holdup solution region. A retuned version of OLGA HD, presented in [1], performed well also on the experiments where OLGA...