Capillary suction time test

{
  "id": "MLC-T-OAG-000536",
  "term": "Capillary suction time test",
  "field": "Oil and gas",
  "definition": "A laboratory test that times how long the liquid from a sample takes to move a fixed distance through filter paper by capillary suction, measured between two electrodes. In drilling fluid work it is run on slurries of shale or clay in a test fluid to judge shale reactivity and how readily the solids dewater. Finely dispersed, poorly inhibited clay clogs the paper and gives a longer time, while flocculated or inhibited solids give a shorter time.",
  "subject": "Drilling Fluids",
  "url": "https://mlchart.com/terminology/oil-and-gas/capillary-suction-time-test/"
}