دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a well drilled in proven territory in a field to complete a pattern of production. 2. an exploitation well.

n: A well drilled in a proven field to exploit known reserves. Usually one of several wells drilled from a central platform.

wells that are drilled after the discovery and appraisal wells to develop the hydrocarbon production potential of the field.

n: the first oil or gas well drilled in a new field that reveals the presence of a hydrocarbon-bearing reservoir. Subsequent wells are development wells.

n: The first well drilled in a new field that successfully indicates the presence of oil or gas reserves.

the initial well in the field that tests hydrocarbons.

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

n: a compliant offshore drilling platform used to drill development wells. The foundation of the platform is a relatively lightweight jacket on which all equipment is placed. A system of guy wires anchored by clump weights helps secure the jacket to the seafloor and allows it to move with wind and wave forces. See platform rig.

n: (MODU) a drilling rig that is used exclusively to drill offshore exploration and development wells. It floats on the surface of the water when being moved from one drill site to another. but it mayor may not float once drilling begins. Two basic types of mobile offshore drilling unit are used to drill most offshore wildcat wells: bottom-supported off- shore drilling rigs and floating drilling rigs.

n: 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 a mobile floating vessel with a ship or barge hull, a semi-submersible or submersible base, a self-propelled or towed structure with jacking legs (jack up drilling rig),or a permanent structure used as a production platform when drilling is completed. In general, wildcat wells are drilled from mobile floating vessels or from jackups. while development wells are drilled from platforms or jackups.

n: an immobile offshore structure from which development wells are drilled and produced. Platform rigs may be built of steel or concrete and may be rigid or compliant. Rigid platform rigs, which rest on the seafloor, are the caisson- type platform, the concrete gravity platform, and the steeljacket platform. Compliant platform rigs, which are used in deeper waters and yield to water and wind movements, are the guyedtower plat- form, the tension-leg platform, and the compliant piled tower platform.

n: see development well.

n: 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 produced by primary development wells drilled from a permanent drilling structure (such as a platform rig). Sometimes, several satellite wells will be drilled to exploit marginal reservoirs and avoid the enormous expense of erecting a platform.