Sökning: "slug test"

Hittade 4 avhandlingar innehållade orden slug test.

  1. 1. Hydro-Mechanical Behaviour of a Pressurised Single Fracture: An In-situ Experiment

    Författare :Patrik Alm; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hydro-mechanical behaviour; hydraulic field test; transmissivity; effective stress; aperture; fracture stiffness; fracture; slug test;

    Sammanfattning : Exploration of ground water resources, grouting, disposal of nuclear waste and extraction of geothermal energy are examples of activities which require consideration of the relationship between effective stress and transmissivity. However, this relationship is poorly understood and very few investigations have been conducted in field scale. LÄS MER

  3. 2. Well Testing, Methods and Applicability

    Författare :Jan-Erik Rosberg; Teknisk geologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; slug tests; well completion; re-injection; Well testing; pumping tests; injection tests; well development; pneumatic initiation; hydro-jetting; coiled tubing; tunnel lining; deep wells;

    Sammanfattning : Well testing is widely used today in water wells, oil and gas wells, for geothermal applications, within civil engineering projects, thermal storage and CO2 storage. The overall testing goal is to verify the productivity from a well and/or for characterization of hydraulic and thermal properties, as well as the spatial limitations of an aquifer. LÄS MER

  4. 3. Intervertebral disc regeneration. Studies on stem cell niches and cell transplantation

    Författare :Helena Barreto Henriksson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; intervertebral disc stem cells degenerative disc cell transplantation stem cell niches disc degeneration mesenchymal stem cells cell therapy;

    Sammanfattning : Abstract Intervertebral disc regeneration Studies on stem cell niches and cell transplantation Helena Barreto Henriksson Gothenburg 2010 Low back pain is a common condition in the Western world and disc degeneration (DD) is considered a major cause. DD is characterized by dysfunctional cells and decreased matrix production. LÄS MER

  5. 4. Flow Boiling Heat Transfer in Single Vertical Channels of Small Diameter

    Författare :Claudi Martin Callizo; Björn Palm; Predrag Hrnjak; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microchannel; heat exchanger; heat transfer; flow boiling; flow patterns; onset of nucleate boiling; dryout; critical heat flux; Mechanical and thermal engineering; Mekanisk och termisk energiteknik;

    Sammanfattning : Microchannel heat exchangers present many advantages, such as reduced size, high thermal efficiency and low fluid inventory; and are increasingly being used for heat transfer in a wide variety of applications including heat pumps, automotive air conditioners and for cooling of electronics.However, the fundamentals of fluid flow and heat transfer in microscalegeometries are not yet fully understood. LÄS MER