API fluid-loss test

{
  "id": "MLC-T-OAG-000155",
  "term": "API fluid-loss test",
  "field": "Oil and gas",
  "definition": "A standardized laboratory procedure to measure the filtration rate of a drilling fluid under specific conditions of temperature and pressure. The test uses a filter press to determine the volume of filtrate collected over a 30-minute period, typically at 100 psi (690 kPa) and room temperature for water-based muds. This measurement indicates the fluid's ability to form a low-permeability filter cake on the wellbore wall.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/api-fluid-loss-test/"
}