... as the Zhang et al. (2003, “Unified Model for Gas-Liquid Pipe Flow via Slug Dynamics—Part 1: Model Development,” ASME J. Energy Resour. Technol., 125 , pp. 266–272). The unified model shows sensitivity at high gas flow rates, while displaying a negligible sensitivity at low gas flow rates. In conclusion...

... are very promising. 30 06 2009 05 05 2011 27 06 2011 27 06 2011 erosion multiphase flow pipe flow pipes rotational flow sand annular flow erosion sand Many oil and gas producers are forced to address issues resulting from the production of formation sand...

.... A set of four coupled partial differential equations to describe dynamic barite sag in Newtonian fluids in pipe flow is obtained by applying mass and momentum conservation for solid and liquid phase. Solid concentration in axial and radial directions as a function of time is calculated by using...

... 01 2011 aerodynamics bioenergy conversion fermentation heating permanent magnets pipe flow ventilation waste-to-energy power plants ventilation magnetizing force thinned wood compost waste heat recovery From the sustainable global development viewpoint, the following...

... Phenomenon in Two-Phase Pipe Flows,” Int. J. Multiph. Flow, 28, pp. 1177–1204 ), based on minimization of system total energy, seem to be invalidated for high viscosity oil. Arirachakaran , S. , Oglesby , K. D. , Malinowsky , M. S. , Shoham , O. , and Brill , J. P. , 1989...

... multiphase flow nonlinear differential equations pipe flow pumps Dual gas lift well system is usually applied for an oil field, which has many oil formations or there are multilayers of reservoir, which had been drilled through a single well. In dual gas lift well...

.... 09 08 2006 29 12 2008 19 05 2009 multiphase flow pipe flow statistical analysis Two-phase slug flow is described by alternating liquid slugs and gas bubbles flowing above liquid films, both of which when combined form what is called a slug unit. Pure liquid slugs...

... of the pipeline. 13 08 2007 30 08 2008 24 11 2008 hydrodynamics multiphase flow natural gas technology oil technology pipe flow pipelines Flow assurance engineers face several challenges when designing multiphase flow systems. These challenges include assessing the flow...

... by results, showing considerable improvement in terms of capturing the physics of the flow. multiphase flow natural gas technology pipe flow pipelines 2008 American Society of Mechanical Engineers ...

.... Pigging is recognized as one of the most used techniques for removing wax deposits in pipelines. Although pigging has been utilized in numerous onshore and offshore fields, there are no studies and means available to judge its effectiveness. pipe flow pipelines two-phase flow 15 02 2008...

... NOTEBOOK acquired the data. The signals were later digitally filtered during the data analysis process. Note also that the vibrations were monitored during the tests by a dual-channel fast Fourier transform (FFT) analyzer. 28 08 2006 19 03 2008 22 08 2008 pipe flow vibrations...

... fluctuations multiphase flow petroleum industry pipe flow pipelines slip flow statistical analysis Gas-liquid two-phase flow in pipes occurs at production and transportation facilities for oil and gas. The most common type of flow patterns in field operation for horizontal and near horizontal...

... 2008 impact (mechanical) multiphase flow pipe flow pipes wear erosion multiphase flow annular flow solid particle erosion elbow To meet operational processing and production demands of many industries, efficient and reliable transportation of fluid is essential. A large number...

... existing differential pressure data. 05 04 2006 05 09 2007 02 01 2008 drag reduction multiphase flow pipe flow In evaluating the differential pressure data from a drag reduction study in this laboratory, a major issue was how to characterize intermittent flow patterns...

... density 2400 kg ∕ m 3 Re nozzle ∼ 10 6 Exhaust gases flux 35,000 Nm 3 ∕ h 15 10 2004 22 06 2006 incineration boilers erosion numerical analysis electric heating jets slag pipe flow turbulence Slag and soot...

... computational fluid dynamics numerical analysis pipe flow erosion elbow CFD mechanistic gas/liquid/sand flow multiphase flow Erosion caused by sand particles entrained in a piping system is of great concern for many industries. When sand is present in the transported fluid, there is a risk...

...) Table 2 summarizes the distribution of n -alkanes, oil and high-boiling point components (HTC) as found in representative samples. waxes coating techniques pipe flow pipelines ageing boundary layer turbulence...

... . Sylvester , N. D. , Dowling , R. H. , and Brill , J. P. , 1980 , “ Drag Reduction in Cocurrent Horizontal Gas-Hexane Pipe Flow ,” Polym. Eng. Sci. , 20 ( 7 ), pp. 485 – 492 . Greskovich , E. J. , and Shrier , A. L. , 1971 , “ Pressure Drop and Holdup in Horizontal Slug Flow...

... 2002 16 November 2003 29 03 2005 laminar flow pipe flow turbulence rheology hydraulic systems polynomials oil drilling Hydraulics play an important function in many oil field operations, including drilling, completion, fracturing, acidizing, workover, and production...

... 11 2001 07 01 2005 pipelines waxes discs (structures) foams maintenance engineering oil technology test facilities pipe flow Wax deposition occurs on the inside surface of a subsea flowline when the pipe wall temperature falls below the cloud point of a paraffinic...