As-built P&IDs

What makes Icarus-ORM as-built better?

As HAZOP facilitators we are hungry for excellent P&IDs. Having been through thousands of hours of HAZOPs, we know small details on the P&IDs can make a big difference in decision making. We have seen many cases of missing or incorrect piping spec breaks, CSO/CSC, wrong drawing references, and incorrect design specifications that result in a major slow down of a HAZOP meeting and wasting days of critical operators time. Poor as-built P&IDs also drives unnecessary recommendations “to-confirm” when it should have been done right during the as-built. Worse yet, incorrect as-built P&IDs can result in missed hazard identification, creating a blind spot in operations.

Our team offers unique value for as-built P&IDs by doing the following:

  • including necessary process safety information (PSI)

  • quality assurance review of the as-built P&IDs from a facilitator perspective and identification of any missing information before the HAZOP

  • using Blue Beam tools to optimize navigation of information

What are As-built P&IDs?

As-built P&IDs, or As-built Piping and Instrumentation Diagrams, are crucial documents in engineering and construction projects, particularly in industries such as chemical processing, oil and gas, power generation, and others.

P&IDs are schematic diagrams that illustrate the piping and instrumentation of a system, including the equipment, piping, instrumentation, valves, and other components. They serve as essential reference documents for engineers, operators, and maintenance personnel to understand the design, operation, and maintenance requirements of a system.

"As-built" refers to the final versions of these diagrams, reflecting the actual physical configuration of the system after construction or installation. As construction progresses, changes may occur due to various factors such as design modifications, field conditions, unforeseen issues, or client requirements. As a result, the final installed system may differ from the initial design.

The as-built P&IDs capture these changes, revisions, and additions made during construction or installation. They provide an accurate representation of the system's layout, components, connections, and instrumentation as built on-site.

As-built P&IDs are critical for several reasons:

  1. Documentation: They serve as official documentation of the final system configuration.

  2. Maintenance and Operations: They help operators and maintenance personnel understand the system's layout, components, and instrumentation, which helps in facilitating maintenance, troubleshooting, and repair activities.

  3. Regulatory Compliance: They may be required for regulatory compliance and audits

  4. Future Modifications: They provide a reference for future modifications, expansions, or upgrades to the system.

  5. HAZOP Decision Making: They provide the basis for good decision making by alignment of actual operation during a HAZOP revalidation.

Creating accurate as-built P&IDs requires collaboration between various stakeholders including engineers, designers, construction personnel, and sometimes the client or owner. It involves capturing changes and revisions made during construction and operation, updating the diagrams accordingly, and ensuring they accurately reflect the final installed system.

Overall, as-built P&IDs play a crucial role in ensuring the integrity, safety, and efficient operation of industrial systems throughout their lifecycle.