MLchartDataset catalogue

Back off

Term · Oil and gas · MLC-T-OAG-000238

To unscrew one threaded component of the drill string from another downhole. This is an intentional unthreading procedure, performed when part of the string is stuck and must be recovered. A small explosive charge is detonated at a selected tool joint, and the resulting shock, combined with applied torque, causes the connection to unscrew.

Table 1. Record
IdentifierMLC-T-OAG-000238
FieldOil and gas
SubjectDrilling
Record as JSON 
{
  "id": "MLC-T-OAG-000238",
  "term": "Back off",
  "field": "Oil and gas",
  "definition": "To unscrew one threaded component of the drill string from another downhole. This is an intentional unthreading procedure, performed when part of the string is stuck and must be recovered. A small explosive charge is detonated at a selected tool joint, and the resulting shock, combined with applied torque, causes the connection to unscrew.",
  "subject": "Drilling",
  "url": "https://mlchart.com/terminology/oil-and-gas/back-off/"
}

Record 258 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.