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Vetco was a British oilfield service company that was established in July 2004 and operated through its subsidiaries Vetco Gray and Vetco Aibel AS. Vetco was the result of a consortium consisting of the private equity firms Candover, 3i and JP Morgan Partners, which took over ABB's oil and gas division, ABB Offshore Systems.
In exploration wells that are later abandoned, the wellhead may be recovered for refurbishment and re-use. Offshore, where a wellhead is located on the production platform it is called a surface wellhead, and if located beneath the water then it is referred to as a subsea wellhead or mudline wellhead. [2] [3] [4] [5]
Depending on the type of lift system and wellhead a rod rig or flushby can be used to change a pump without pulling the tubing. Enhanced recovery methods such as water flooding, steam flooding, or CO 2 flooding may be used to increase reservoir pressure and provide a "sweep" effect to push hydrocarbons out of the reservoir.
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Installations are identified by a large black-on-yellow sign on the installation. This may give the name of the original or current owner or operator, the field name, and a set of numbers and letters, e.g. Shell/Esso Leman 49/26A. The numbers identify the Quadrant and Block where the installation is located, e.g. 49/26 is in Quadrant 49 Block ...
These Wellhead Protection Programs must specify the duties of State agencies, local governmental entities, and public water supply systems to develop and implement wellhead protections. Identification of the area that needs wellhead protection must be based on the hydrologic and geologic information on groundwater flow, recharge, and discharge.
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A wellhead protection area is a surface and subsurface land area regulated to prevent contamination of a well or well-field supplying a public water system. This program, established under the Safe Drinking Water Act (42 U.S.C. 330f-300j), is implemented through state governments.