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US 11,959,354 B2Granted
Moveable disintegratable plug element
AssigneeFRAC Technology AS
InventorViggo Brandsdal
Life of this patent
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Abstract
A completion pipe comprising a plug arrangement and a method for arranging a completion pipe in a well. The arrangement includes a disintegratable plug element arranged in a plug housing in a pipe string, a seal element arranged to seal between the plug element and the pipe string. The plug element is movable in the axial direction of the pipe string between a first position and a second position.
Claims5
A plug arrangement comprising:
- a substantially cylindrical pipe string comprising a longitudinal axis extending in a first direction and a plug housing;
- a disintegratable plug element disposed within the plug housing and configured to move in the direction of the longitudinal axis from a first position to a second position;
- an axially movable annular seat element comprising an angled contact surface disposed adjacent the disintegratable plug element;
- a shear element configured to prevent movement of the disintegratable plug element from the first position to the second position until the plug is subjected to a predetermined axial force;
- a stationary annular seat element axially spaced from the disintegratable plug;
- a seal element arranged to prevent fluid from flowing in an axial direction past the disintegratable plug element;
- and
- a loading device configured to break the disintegratable plug element after it has moved to the second position.
5 more elements
Dependencies are inferred from the claim text.