MLchartDataset catalogue

Top drive

Term · Oil and gas · MLC-T-OAG-003865

A power swivel and motor assembly suspended from the derrick that rotates the drill string from the top, rather than from the rig floor. It allows for continuous drilling of multiple pipe stands and enables reaming while tripping out of the hole. This device is a standard feature on modern drilling rigs, providing rotational torque up to 100,000 foot-pounds.

Table 1. Record
IdentifierMLC-T-OAG-003865
FieldOil and gas
SubjectDrilling
Record as JSON 
{
  "id": "MLC-T-OAG-003865",
  "term": "Top drive",
  "field": "Oil and gas",
  "definition": "A power swivel and motor assembly suspended from the derrick that rotates the drill string from the top, rather than from the rig floor. It allows for continuous drilling of multiple pipe stands and enables reaming while tripping out of the hole. This device is a standard feature on modern drilling rigs, providing rotational torque up to 100,000 foot-pounds.",
  "subject": "Drilling",
  "url": "https://mlchart.com/terminology/oil-and-gas/top-drive/"
}

Record 4,102 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.