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| Pig |
Device for cleaning a pipeline or separating two liquids being moved down pipeline. (Intelligent pig - fitted with sensors to check for corrosion or defects in pipelines.) |
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| Piling |
Long steel piles driven into the seabed to anchor fixed offshore structures solidly in place. |
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| Pipeline |
A pipe through which natural gas, crude oil or petroleum products are pumped between two points, either onshore or offshore. |
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| Plateau |
Level of peak oil or gas field production; it is always followed by declining level of production. |
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| Platform |
Fixed structure resting on seabed or piled into it. |
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| Platform Nomenclature |
Tension Leg Platform (TLP)
Minimum Facility Platform (MINF)
Not Normally Attended Installation (NNAI)
Gravity based structures (GBS)
Accommodation (ACCOM)
Compression (COMP)
Drilling (DRIL)
Riser (RISE) |
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| Preventative maintenance |
Maintenance carried out prior to unit or system failure. |
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| Primary Recovery |
Recovery of hydrocarbons from a reservoir using only natural reservoir pressure.(see also Secondary and Tertiary Recovery.) |
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| Produced Water |
Brines naturally present or injected into reservoir to enhance production. Produced along side oil production. |
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| Production Drilling |
Drilling of wells in order to bring a field into production. |
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| Production Installation |
An installation from which development wells are drilled and that carries all associated processing plants and other equipment needed to maintain a field in production. |
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| Production String |
Tubing or piping in a production well through which oil or gas flows from reservoir to wellhead. |
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