Development:

The newly discovered oil or gas field is assessed during an appraisal phase, a plan to fully and efficiently exploit it is created, and additional wells are usually drilled.

Terms Related to Development

• Appraisal

  The phase of petroleum operations that immediately follows successful exploratory drilling. During appraisal, delineation wells might be drilled to determine the size of the oil ...

• Development well

  1. A well drilled in proven territory in a field to complete a pattern of production. 2. An exploitation well. See exploitation well.

• Satellite well

  Usually a single well drilled offshore by a mobile offshore drilling unit to produce hydrocarbons from the outer fringes of a reservoir that cannot be ...

• Offshore drilling

  Drilling for oil or gas in an ocean, gulf, or sea, usually on the outer continental shelf. A drilling unit for offshore operations may be ...

• Exploitation well

  A well drilled to permit more effective extraction of oil from a reservoir. Sometimes called a development well. See development well.

• Appraisal well

  Additional wells drilled after a discovery, to confirm the size of a hydrocarbon deposit. Normally used to run buildup tests, drill stem tests, top and ...

• Unit operator

  The oil company in charge of development and production in an oilfield in which several companies have joined to produce the field.