Dropoff gun

{
  "id": "MLC-T-OAG-001202",
  "term": "Dropoff gun",
  "field": "Oil and gas",
  "definition": "A perforating gun assembly that is released from the tubing after firing and falls to the bottom of the well, leaving the tubing bore open for production. A release device in the string, activated once the guns have fired, drops the assembly into the rathole below the perforated interval. The method suits tubing-conveyed jobs in wells with enough open hole under the perforations to hold the spent guns.",
  "subject": "Perforating",
  "url": "https://mlchart.com/terminology/oil-and-gas/dropoff-gun/"
}