P&ID and SCD of Huldra

**Overview**
Through the lifetime of an asset, Equinor collects large amounts of Life Cycle Information including technical information, maintenance information, and 3D models. One of these assets is Huldra. The field was developed with a wellhead and process facility, unmanned, and remotely operated from Veslefrikk B. Production started in 2001 and ended in 2014. The plant was decommissioned in 2019 and 97% of material recycled.

The system design is covered by P&ID's (Piping and Instrument Diagrams) and SCD's (System Control Diagrams). For Huldra, these are a result of Equinor early studies, matured in detail by contractor Aker Kværner and Rosenberg Verft in the construction phase. Equinor has maintained these through the lifetime of Huldra in collaboration with contractors. The P&ID's represent the as-built status of Huldra when it ended production in 2014.

**Use cases**
- Digital twin development connecting P&ID tags to 3D models and other technical information
- Engineering education and research using real-world process system documentation
- Process safety analysis and control system design studies
- Integration with the 3D model of Huldra (available separately on this marketplace)

**Product details**
The dataset consists of files created from Microstation 2D software, exported as proprietary DGN files and Adobe PDF format.

- **P&ID's** — 20 files: Detailed graphical representations of the process system showing interconnection of process equipment, piping, valves, instruments, and control functions
- **SCD's** — 97 files: Graphical representations of the control and safety logic, showing how control function templates implement monitoring, control, shutdown, and safeguarding functions
- **Legends** — 16 files: Legend sheets defining symbols, line types, abbreviations, and codes used in the P&ID and SCD diagrams

**Additional Insights**
The P&ID's are the master document for the TAGS modelled into the 3D model, enabling connection between the 3D model and system documentation. This is a key element in digital twin solutions that connect data from different source systems. The companion 3D model of Huldra is also available on this marketplace.