Archer Oiltools As

Seawell Oil Tools As

Ketil Ronning

Arve Byberg

A sleeve valve including a permanent end position and comprising an inner sleeve concentrically disposed within an outer sleeve comprising at least one radially facing outer opening and an operating range defined by an open position in which the inner sleeve does not block the outer opening, and a closed position in which the inner sleeve blocks the outer opening. The inner sleeve is axially displaceable or rotatable within the outer sleeve to provide an operating range in the longitudinal direction or an operating range in the form of an angle. At least one plastically deformable locking area of one the inner or outer sleeve is adapted for being radially deformed into a locking groove of the other sleeve when the inner sleeve is moved outside of the operating range.

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Stavanger, Norway

Ketil Ronning