Humping

{
  "id": "MLC-T-OAG-001881",
  "term": "Humping",
  "field": "Oil and gas",
  "definition": "A pressure anomaly in a buildup test in which the recorded pressure rises above the level it will finally reach and then falls back, leaving a hump on the pressure plot. It results from phase redistribution in the wellbore after shut-in, as gas rises and liquid falls and the pressure at the gauge changes. The hump distorts the early buildup data and can be mistaken for reservoir behaviour.",
  "subject": "Well Testing",
  "url": "https://mlchart.com/terminology/oil-and-gas/humping/"
}