Packer setting and/or unsetting

摘要

Linear movement via a sliding mandrel configured to translate axially is converted into radial movement to compress a packer. The packer is configured to seal an item of oilfield equipment typically in a subsea environment. The packer may also be used to return or reverse the radial movement and/or the linear movement.

主权项

1. A system for setting at least one sealing member of an item of oilfield equipment, the system comprising:
an inner mandrel; a sliding sleeve; a stationary housing positioned radially between the inner mandrel and the sliding sleeve, the stationary housing radially overlying the inner mandrel, and the sliding sleeve radially overlying the stationary housing; and at least one dog, wherein axial displacement of the inner mandrel relative to the stationary housing causes radial displacement of the at least one dog through a slot in the stationary housing, and wherein the radial displacement of the at least one dog causes axial displacement of the sliding sleeve relative to the stationary housing, and sets the at least one sealing member.