The location of primary extraction, usually of oil or natural gas. The term also refers to the equipment used to maintain surface control of an oil or natural gas well and to various parameters, as they exist at the point of production (for instance "wellhead price".)
Of or pertaining to the equipment at the top of the well bore which is used to maintain surface control of the well. Includes casinghead, tubing head, Christmas tree, etc.
A control device for oil and gas wells. It is installed at the top of the well and consists of an assembly of fittings and valves. Synonym: christmas tree.
Steel equipment installed at the surface of the well containing an assembly of heavy duty hangars and seals (the wellhead is used to support the weight of casing strings hung from it and to contain well pressure).
"Wellhead" is descriptive of a location or function rather than a specific item of equipment of a well.
The control equipment fitted to the top of the well consisting of outlets, valves, blowout preventors, etc.
The control equipment fitted to the top of a well casing, incorporating outlets, valves, blowout preventers, etc.
The equipment at the surface of a well used to control the pressure and where hydrocarbons and water exit the ground.
A wellhead is the control equipment which is placed at the top of the well casing.
"Wellhead" is descriptive of a location or function rather than a specific item of equipment. See Production Wellhead.
the equipment installed at the surface of the wellbore. A wellhead includes such equipment as the casinghead and tubing head. adj: pertaining to the wellhead (e.g., wellhead pressure).
The surface termination of a wellbore that incorporates facilities for installing casing hangers during the well construction phase. The wellhead also incorporates a means of hanging the production tubing and installing the Christmas tree and surface flow-control facilities in preparation for the production phase of the well.
A wellhead is that part of an oil well which terminates at the surface, whether on land or offshore, where petroleum or gas hydrocarbons can be withdrawn.