Lower Riser Package
Subsea equipment package which forms part of the lower workover riser package and typically consists of a WCT-BOP and tree running tool.
Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards
Lower Riser Package or LRP
Used for intervention, flowing or vertical tree installation. It contains a series of isolation and cutting valves as part of, or in addition to, the emergency disconnect package.
Source: API RP 96, Deepwater Well Design and Construction, First Edition, March 2013. Global Standards