Wellhead

{
  "id": "MLC-T-ENV-030315",
  "term": "Wellhead",
  "field": "Environment",
  "definition": "1. The top of a structure built over a well. Term also used for the source of a well or stream.\n\n2. The point at which the crude (and/or natural gas) exits the ground. Following historical precedent, the volume and price for crude oil production are labeled as \"wellhead, \"even though the cost and volume are now generally measured at the lease boundary. In the context of domestic crude price data, the term \"wellhead\" is the generic term used to reference the production site or lease property.\n\n3. Piping, casing, tubing and connected valves protruding above the earth's surface for an oil and/or natural gas well. The wellhead ends where the flow line connects to a wellhead valve.\n\n4. The area immediately surrounding the top of a well, or the top of the well casing.",
  "subject": "Water",
  "references": [
    "Private Wells Glossary",
    "DOE Energy Information Administration Glossary",
    "40 CFR 98.6 (CFR 2013)",
    "Office of Underground Storage Tanks Technical Terms; Glossary of Technical Terms: Office of Underground Storage Tanks"
  ],
  "url": "https://mlchart.com/terminology/environment/wellhead/"
}