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  • 2005-2009  (1)
  • 1970-1974  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    FLUID MECHANICAL ASPECTS OF THE GAS-LIFT TECHNIQUE (2006)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Fluid Mechanics 38 (2006), S. 225-249 
    Details
    ISSN: 0066-4189
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The gas-lift technique comprises the injection of gas bubbles in vertical oil wells to increase production. It is based on a reduction of the tubing gravitational pressure gradient. Several fluid-flow phenomena influencing such vertical gas-liquid flows are discussed. These effects include the radial distribution of void fraction and of gas and liquid velocity, flow regime changes, and system stability problems. Associated consequences for gas-lift performance and related optimization approaches are also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.fluid.38.061505.093942
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The hydrodynamic stability of core-annular flow of two ideal liquids (1972)
    Springer
    Flow, turbulence and combustion 26 (1972), S. 147-158 
    Details
    ISSN: 1573-1987
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The hydrodynamic stability of core-annular flow of two ideal liquids through a pipe is investigated. If the thickness of the annular layer is much smaller than the radius of the pipe, the pipe wall has a strong reducing effect on the growth velocity of possible Rayleigh-Taylor and Kelvin-Helmholtz instabilities at the interface between the two liquids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01897844
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The flow of a rigid core surrounded by an annular liquid layer through a horizontal tube (1972)
    Springer
    Flow, turbulence and combustion 26 (1972), S. 321-334 
    Details
    ISSN: 1573-1987
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A theoretical investigation has been made of the flow of a rigid core surrounded by an annular liquid layer through a horizontal tube. Special emphasis is placed on the question how the gravity force on the core, caused by a possible density difference between the core and the annular layer, is counterbalanced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01897860
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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