MLchartDataset catalogue

Spinner reversal

Term · Oil and gas · MLC-T-OAG-003543

The reversal in the direction of spinner rotation that occurs when a flowmeter tool moves in the same direction as the fluid but faster than it, so the fluid moves backward relative to the tool. On a plot of spinner rotation speed against line speed, the point where the response crosses zero marks a tool speed equal to the fluid velocity, ignoring threshold effects.

Table 1. Record
IdentifierMLC-T-OAG-003543
FieldOil and gas
SubjectProduction Logging
Record as JSON 
{
  "id": "MLC-T-OAG-003543",
  "term": "Spinner reversal",
  "field": "Oil and gas",
  "definition": "The reversal in the direction of spinner rotation that occurs when a flowmeter tool moves in the same direction as the fluid but faster than it, so the fluid moves backward relative to the tool. On a plot of spinner rotation speed against line speed, the point where the response crosses zero marks a tool speed equal to the fluid velocity, ignoring threshold effects.",
  "subject": "Production Logging",
  "url": "https://mlchart.com/terminology/oil-and-gas/spinner-reversal/"
}

Record 3,759 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.