MLchartDataset catalogue

Step profile

Term · Oil and gas · MLC-T-OAG-003616

An idealized radial invasion profile in which the resistivity changes abruptly from the flushed-zone value Rxo to the undisturbed value Rt at the invasion diameter, with no transition zone between them. It is the simplest model used to correct induction and laterolog readings for invasion. Real invasion often has a gradual transition or a low-resistivity annulus instead.

Table 1. Record
IdentifierMLC-T-OAG-003616
FieldOil and gas
SubjectFormation Evaluation
Record as JSON 
{
  "id": "MLC-T-OAG-003616",
  "term": "Step profile",
  "field": "Oil and gas",
  "definition": "An idealized radial invasion profile in which the resistivity changes abruptly from the flushed-zone value Rxo to the undisturbed value Rt at the invasion diameter, with no transition zone between them. It is the simplest model used to correct induction and laterolog readings for invasion. Real invasion often has a gradual transition or a low-resistivity annulus instead.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/step-profile/"
}

Record 3,833 of 4,468 in Oil and gas terminology (MLC-0103). Request the full dataset.