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wellhead

wellhead

7 8.3
A structure at the top of a well that controls the flow of oil or gas
  • noun
  • /ˈwɛlˌhɛd/
  • Specialized
translation icon : cabeza de pozo
  • The engineer inspected the wellhead to ensure there were no leaks in the system.
  • wellhead protection
  • wellhead price
  • wellhead protection area

Examples

  • The principal difference between onshore and offshore drilling is that when you are drilling on shore, you have control of the wellhead directly under the rig.

  • For years, state agencies across the United States have been adopting wellhead protection programs.

    Academic text (2003)
  • Lack of a comprehensive wellhead protection program has led to critical problems for various states throughout the country.

    Academic text (2003)
  • At least 10 new wellhead protection areas will be covered by these upcoming study results.

    Academic text (2003)
  • At this point, the oil coming up through the wellhead no longer has a high velocity.

    Blog text (17)
  • At other primary wells, oil may be lifted by pumps at the wellhead.

    Academic text (2001)
  • Visual inspection of the wellhead did not reveal a potential route of contamination.

    Academic text (2002)
  • The US Congress instituted regulation of US oil prices from the wellhead through refining and marketing in the early 1970s.

    Academic text (2000)
  • The Washington State Department of Health (WSDOH) accepts four methods for delineating wellhead protection areas around public supply wells.

    Academic text (2005)
  • To control the flow of water, they installed a new wellhead at the top of the well.

How Big

pumping station
  • Specialized
5 3.2
pump house
3 3.5
wellhouse
  • UK
4.4
wellhead
  • Specialized
7 8.3

Surface Forms

wellhead singular
wellheads plural

Morphology

wellhead = well + head (semi-transparent) = well + head

The components 'well' and 'head' indicate the top of a well, but the technical sense 'a fitted structure to control extraction' is specialized and may not be obvious to general learners.

Etymology

Wellhead comes from well ('source') and head ('top'), which gives a clear image of the word. That's why a wellhead can mean the top part or structure of a well that controls the flow of oil or water.