Direction of movement towards the reservoir.
Source: API SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). Global Standards
Away from a component against the direction of flow.
Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards
Business category of the petroleum industry involving exploration and production (e.g. offshore oil/gas production facility, drilling rig, intervention vessel).
Source: API STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. Global Standards
Business category of the petroleum industry involving exploration and production. EXAMPLES Offshore oil/gas production facility, drilling rig, intervention vessel.
Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. Global Standards