... group mpt2019 concentration interface efficiency upstream oil & gas gas hydrate formation particle water droplet crystallization closure parameter supersaturation flow assurance hydrate formation mass transfer Predicting gas hydrate formation during three-phase gas- (water-in-oil...

..., shape, concentration; pipe geometry properties include diameter, shape, and roughness of pipe. Because of the importance of this topic, many investigators have developed models for predicting critical deposition velocities. For example, Figure 1 shows a prediction of particle transport velocity using...

... sand management commercial multiphase dynamic simulator liquid phase implementation concentration Selection, implementation and validation of a sand transport model within a commercial multiphase dynamic simulator for effective sand management A. Musi, D. Larrey, J. Monsma, M.-A. Paran, M.-K...

... and predictions from commercial software. NOTATION A Area m2 C Wax concentration kg/m3 Cwb Wax concentration at the bulk kg/m3 Cws Wax concentration at the interface kg/m3 De Effective molecular diffusivity of wax in oil m2/s Dwo Molecular diffusivity of wax in oil m2/s EA Activation energy J/mol Wax fraction...

... viscosity gas well deliquification upstream oil & gas anionic surfactant production monitoring surfactant solution pressure gradient foam flow surfactant concentration surfactant diameter loop surface tension concentration foam The use of surfactants for gas well deliquification...

..., vibration issues, methods for hydrate remediation, (safe) module intervention and consequences of non-homogenous liquid phases. 4.2 Hydrate Protection Prior to ÅSC, continuous MEG injection, securing a MEG concentration of 55 vol% MEG within the aqueous phase, injected at every subsea template was the main...

... at the bottom of a horizontal pipe. It is this last definition that is used in this discussion. Sand transportation in multiphase flow is a very complex issue and dependent on parameters such as sand concentration, fluid viscosities, multiphase (gas-liquid) flow regime and sand particle size. Sand...

... and lean MEG injection to the wells. A pressure boundary at the onshore end of Pipeline C simulates the slug catcher. Fluid properties are calculated through PVT lookup tables. Variations of MEG concentration in the aqueous phase along the pipelines are simulated with an inhibitor tracking model. Mean...

... geometries also include low-spots where water may accumulate (Figure 1), increasing the risk of hydrate plug formation upon restart. meg concentration experiment multiphase 16 vertical section concentration profile methanol displacement experiment inhibitor horizontal section concentration...

.... midgard gas condensate field production rate liquid accumulation complex reservoir concentration bhr group 2013 pressure drop instability flow rate flowline msm 3 surge wave instability surge accumulation condensate reservoir production control production monitoring topside choke...

... bingham material concentration upstream oil & gas equation equation of state sediment fluid modeling relative velocity calculation Numerical sediment simulation using a continuous flow model J C Goeree, C van Rhee Delft University of Technology, Section of Dredging Engineering...

... the level of sand erosion and transportation by reliable sand monitoring and prediction models (King et al., 2001). Sand transportation in a multiphase pipeline is a very complex issue, and is dependent on various parameters (sand concentration, sand size, pipe geometry, liquid viscosity and multiphase flow...

... with diameter 25.4 and 19.0mm was investigated. Mineral oil and co-polymer (Magnafloc 1035) were used. Polymer concentrations between 2 to 30 ppm were investigated. The results showed that pipe diameter has significant effect on drag reduction. Drag reduction of up to 60% was observed in the 25.4 mm pipe while...

... solids concentration was also calculated from the swelling of the oil column. USP mineral oil (814.5 kg/m3 and 41.36 mPa.s at 20ºC) and 425 600 µm glass beads were used to simulate the petroleum and sand contents, respectively. Water from a constant level tank was also fed from the top and its flow...

... and sodium-acrylate (Percol 727) in water. They realized significant drag-reduction with a concentration as low as 0.25 wppm (weight base parts per million). The principal effect of the polymer is to reduce Reynolds shear stresses and velocity fluctuations in a direction normal to the wall. Maximum drag...

...) for restarts. hydrate equilibrium temperature ims procedure separator pressure bhr group 2011 hydrate equilibrium data simulation upstream oil & gas concentration choke valve restart procedure fluid temperature flowline flow rate field data flow assurance restart gas flow rate...

... results are discussed. velocity profile experiment gas liquid interface entrainment reservoir surveillance flux production logging production control concentration equation diameter pipe diameter droplet entrainment droplet size upstream oil & gas bhr group 2011 two-phase flow...

... gives better cleanup results than open-hole. cleanup bhr group 2009 completion mud viscosity cleanup result drilling fluids and materials drilling operation directional drilling reservoir fluid wellbore reservoir section horizontal wellbore simulation concentration upstream oil...

... efficiency rheometer asphaltene remediation wax remediation paraffin remediation flow loop flow rate scale remediation experimental device oilfield chemistry concentration multiphase production technology 14 shear stress hydrate inhibition deposit reservoir surveillance bhr group 2009 dra 3...

... been used to obtain field data for liquid accumulation of both water and condensate in several pipelines (> 100km). condensate concentration flowline chemical tracer tracer condensation liquid content injection tracer test analysis tracer concentration bhr group 2007 liquid...