MLchartDataset catalogue

Heterogeneous formation

Term · Oil and gas · MLC-T-OAG-001814

A subsurface rock layer whose physical properties, such as permeability, porosity, and mineralogy, change from one location to another. This spatial variation can occur at multiple scales, from microscopic pore-level differences to large-scale layering or faulting that affects the entire reservoir. Well test analysis in heterogeneous formations is complex, as pressure responses deviate from the idealized behavior seen in homogeneous models.

Table 1. Record
IdentifierMLC-T-OAG-001814
FieldOil and gas
SubjectWell Testing
Record as JSON 
{
  "id": "MLC-T-OAG-001814",
  "term": "Heterogeneous formation",
  "field": "Oil and gas",
  "definition": "A subsurface rock layer whose physical properties, such as permeability, porosity, and mineralogy, change from one location to another. This spatial variation can occur at multiple scales, from microscopic pore-level differences to large-scale layering or faulting that affects the entire reservoir. Well test analysis in heterogeneous formations is complex, as pressure responses deviate from the idealized behavior seen in homogeneous models.",
  "subject": "Well Testing",
  "url": "https://mlchart.com/terminology/oil-and-gas/heterogeneous-formation/"
}

Record 1,947 of 4,468 in Oil and gas terminology (MLC-0103). Request the full dataset.