Shearable Sleeve

A plug device for insertion into a pipe string, the plug device comprising:

• a shearable sleeve further comprising:
• a first portion including a first circumferential end surface;
• a seat for supporting a disintegrable plug element, the seat being included in the first portion of the shearable sleeve;
• a second portion including a second circumferential end surface;
• and
• a third surface extending axially between the first circumferential end surface and the second circumferential end surface, the third surface further comprising:
• a radial protrusion adapted to shear off from the rest of the sleeve when exposed to a predefined axial force;
• and
• a recess for receiving a loading device for initiating disintegration of the disintegrable plug element,
• characterized in that the radial protrusion is axially offset relative to the first circumferential end surface;
• the disintegrable plug element adapted to be supported by the seat;
• a loading device adapted to be received in the recess of the shearable sleeve and adapted to initiate disintegration of the disintegrable plug element upon contact with the disintegrable plug;
• and
• a sealing device for sealing the disintegrable plug element with the pipe string.

A plug assembly in a pipe string, the plug assembly comprising:

• a plug device further comprising:
• a shearable sleeve further comprising:
• a first portion including a first circumferential end surface;
• a seat for supporting a disintegrable plug element, the seat being included in the first portion of the shearable sleeve;
• a second portion including a second circumferential end surface;
• and
• a third surface extending axially between the first circumferential end surface and the second circumferential end surface, the third surface further comprising:
• a radial protrusion adapted to shear off from the rest of the sleeve when exposed to a predefined axial force;
• and
• a recess for receiving a loading device for initiating disintegration of the disintegrable plug element,
• characterized in that the radial protrusion is axially offset relative to the first circumferential end surface;
• the disintegrable plug element adapted to be supported by the seat;
• a loading device adapted to be received in the recess of the shearable sleeve and adapted to initiate disintegration of the disintegrable plug element upon contact with the disintegrable plug;
• and
• a sealing device for sealing the disintegrable plug element with the pipe string;
• and
• a plug housing in which the plug device is located, wherein the disintegrable plug element is movable in an axial direction of the pipe string between a first position in which the disintegrable plug element is spaced apart from the loading device and a second position in which the disintegrable plug element is in contact with the loading device.