MLchartDataset catalogue

ECD

Term · Oil and gas · MLC-T-OAG-001241

The effective circulating density, which is the density of the drilling fluid when it is circulating in the wellbore, accounting for the frictional pressure losses in the annulus. This value is higher than the static fluid density due to the pressure exerted by the moving fluid column. Maintaining the ECD within a narrow window is necessary to prevent wellbore instability or formation damage.

Table 1. Record
IdentifierMLC-T-OAG-001241
FieldOil and gas
SubjectDrilling Fluids
Record as JSON 
{
  "id": "MLC-T-OAG-001241",
  "term": "ECD",
  "field": "Oil and gas",
  "definition": "The effective circulating density, which is the density of the drilling fluid when it is circulating in the wellbore, accounting for the frictional pressure losses in the annulus. This value is higher than the static fluid density due to the pressure exerted by the moving fluid column. Maintaining the ECD within a narrow window is necessary to prevent wellbore instability or formation damage.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/ecd/"
}

Record 1,334 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.