MLchartDataset catalogue

Formation exposure time

Term · Oil and gas · MLC-T-OAG-001535

The duration that a specific subsurface formation has been open to the borehole environment, exposed to drilling mud and its filtrate. This time influences the depth of mud filtrate invasion and the thickness of the filter cake, which can affect logging measurements. Longer exposure times generally lead to deeper invasion.

Table 1. Record
IdentifierMLC-T-OAG-001535
FieldOil and gas
SubjectFormation Evaluation
Record as JSON 
{
  "id": "MLC-T-OAG-001535",
  "term": "Formation exposure time",
  "field": "Oil and gas",
  "definition": "The duration that a specific subsurface formation has been open to the borehole environment, exposed to drilling mud and its filtrate. This time influences the depth of mud filtrate invasion and the thickness of the filter cake, which can affect logging measurements. Longer exposure times generally lead to deeper invasion.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/formation-exposure-time/"
}

Record 1,653 of 4,468 in Oil and gas terminology (MLC-0103). Request the full dataset.