OSD are specialists in a range of engineering, design, drafting and project management services for the oil refining and, petrochemical industries and have considerable experience in both green-field Projects and in-plant upgrades.


Specialising in downstream facilities, pressure equipment and plant design, OSD are well equipped to provide design and drafting services for pressure piping, pressure vessels, steam boilers, storage tanks, structural steelwork and reinforced concrete structures.


Our design expertise includes:

  • Piping stress analyses using “CAESAR II ®” and “AUTOPIPE ®” software
  • Piping hot tap analysis using “PRCI ®” software
  • Pressure vessel design using in-house software, “CODECALC ®” and “NOZZLEPRO ®” software
  • Finite Element Analyses (FEA) using “SOLIDWORKS ®” software; and
  • Structural design using “MICROSTRAN ®” software.

Our drafting services include:

  • 3-D Plant design plus Process and Instrumentation Diagrams
  • 3-D and 2-D steelwork
  • Earthworks and reinforced concrete; and
  • Pressure Vessels and Boilers 2-D detailed drafting.

Some recent Projects undertaken by OSD are :

Client Project
BP Refinery Project & Engineering Services
Caltex Lytton Refinery – Brownfields Piping, Vessel and Structural Engineering
Caltex Kurnell Tank Upgrades
Southern Oil Refinery Northern Oil Refinery Hot Oil Utilities – SM Design

OSD services clients in a wide range of market sectors. OSD’s multi-skilled team can add value for asset owners across a range of critical infrastructure including the following: