Hydraulic release tool

{
  "id": "MLC-T-OAG-001899",
  "term": "Hydraulic release tool",
  "field": "Oil and gas",
  "definition": "A downhole component that disconnects from a packer or other tool by applying hydraulic pressure from the surface. The tool is designed with an internal piston that shears a pin or shifts a sleeve when the tubing pressure reaches a predetermined value, unlatching it from the equipment below. This mechanism provides a method of retrieval if the primary mechanical release fails, and it does not require pipe rotation to function.",
  "subject": "Well Workover and Intervention",
  "url": "https://mlchart.com/terminology/oil-and-gas/hydraulic-release-tool/"
}