Automatic evaluation of drilling fluid properties during conventional and MPD operations
Master thesis
Permanent lenke
http://hdl.handle.net/11250/183591Utgivelsesdato
2013-07-12Metadata
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Sammendrag
The primary barrier to maintain well integrity in drilling operations is the drilling
fluid.
With the current routines of evaluating the
fluid properties and the increasingly use of
automated and advanced drilling technology, the margin of error could be fatal.
The main focus of this thesis is to evaluate if differential-pressure measurements could
be used to continuously evaluate
fluid properties. An experimental set-up was built with
differential-pressure sensors across a horizontal and a vertical section. The density and
the friction factor were then calculated regardless of laminar or turbulent
flow. The test
were performed with water.
During the testing phase, it was discovered that the pump characteristics were not
accurate for very low
flow rates. For higher
flow rates the experimental set-up showed
promising data values that could characterize the properties of water, but it still need
further work to achieve reliable data.
Beskrivelse
Master's thesis in Petroleum engineering