Our engineering expertise includes traditional disciplines such as architectural, civil, electrical, mechanical, piping, and structural engineering. We can also provide advanced specialties including simulation, enterprise integration, integrated automation processes, and interactive 3D and 4D modeling.


Our people are the key to our success; we are committed to developing and retaining an exemplary workforce. Projects are be staffed by professionals with the technical knowledge and expertise to tackle the most complex challenge and to do so safely and efficiently.  Many of Pergas’s engineers are recognised technical experts in their specialist areas who present at technical conferences around the World.  We offer the following services to the oil, gas and petroleum industry:




  • Detailed engineering

  • Review engineering

  • Technical Bid assistance and engineering

  • 3D and 4D modelling and design

  • As-built engineering (through laser survey)


Piping & Pipeline


  • Preparation of design basis and technical specification

  • Man-hour estimation

  • Preparation of Plot plan, Equipment Layout, Piping GADs and Isometrics

  • Nozzle orientation and support drawings

  • Piping sizing & thickness calculation

  • Preparation of design basis and technical specification

  • Stress analysis

  • Bill of material

  • Site Survey and As-building of plant (through laser survey

  • 3D modelling and model review


Civil & Structural

  • Preparation of technical bid evaluation

  • Preparation of Design basis and technical specification

  • Structural layouts and sizing

  • Design calculation reports and documentations

  • Bill of materials,

  • 3D Modelling in PDS-Frameworks

  • Drawing composition, extraction & checking

  • Preparation of fabrication / shop drawings

  • Plant As built

  • Preparation of 2D drawings (General arrangement, reinforcement & detailed drawings)

  • Preparation of under ground piping drawings


Instrumentation & Electrical

  • Preparation of design basis and control philosophy

  • Preparation of Instrumentation design basis

  • Preparation of Instrument Installation drawings (Hook up drawings)

  • Cable schedules

  • Bill of material

  • Instrument Loop diagrams

  • Preparation of Level sketches, Input / Output list and Interlock logic diagrams

  • Preparation of DCS / PLC System configuration drawings

  • Instrument Layouts, Cable duct / tray routing and Control room layouts

  • Control panel engineering and System engineering for Control Systems

  • Sizing calculations of Flow meters, Control valves etc

  • Nest loading details of Control automation systems

  • SCADA I/O list

  • Power and control cable schedules and cable drum schedules

  • Design of power systems - Load Analysis

  • Preparation of Single Line Diagrams, System studies, Short Circuit / Load Flow / Relay Coordination / Grounding /Motor Starting studies