Engineering & Consulting Services

Atieh Pardazan Sharif Holding, backed by extensive experience in oil, gas, and petrochemical projects, a specialized team of process, mechanical, electrical, instrumentation, and safety engineers, as well as up-to-date knowledge of international standards (API, ASME, NFPA, OSHA, and NACE), provides comprehensive engineering and consulting services with a strong focus on the needs of the energy industry.

The objective of these services is to transform initial concepts into executable projects, reduce operational risks, improve economic efficiency, and ensure safety under the demanding conditions of the hydrocarbon industry.

The engineers of Atieh Pardazan Sharif, with experience in refinery projects, petrochemical plants, transmission pipelines, process units, and storage facilities, provide comprehensive technical and managerial support to clients and investors.

Phase Zero – Identification, Analysis, and Feasibility Assessment of Oil, Gas, and Petrochemical Projects

Feasibility Study & Pre-feasibility

In Phase Zero, the focus is on the technical and economic analysis of energy projects to determine whether the proposed concept is feasible from process, infrastructure, financial, and safety perspectives.

This stage includes a detailed study of the following:

Phase Zero Deliverables

Analysis of the market demand for oil, gas, and petrochemical products
Evaluation of infrastructure capacity, including pipelines, industrial water, electricity, fuel supply, and feedstock accessibility
Economic assessment, including CAPEX, OPEX, Internal Rate of Return (IRR), and Net Present Value (NPV)
Review of environmental, safety, and HSE requirements
Identification of technical and operational risks in process units
Recommendation of alternative project development scenarios

Phase Zero determines the overall direction of the project and serves as the basis for moving into the design stage.

Phase One – Conceptual Design and Selection of the Optimal Process Route

Conceptual Design

At this stage, the engineering team of Atieh Pardazan Sharif develops conceptual process designs and operational unit layouts. In the energy industry, accurate conceptual design plays a fundamental role in reducing future costs, preventing engineering modifications, and ensuring operational sustainability.

Phase One Deliverables

Development of preliminary PFDs for oil, gas, and petrochemical units
Selection of the most suitable licensor or process scheme (Licensor Selection / Process Scheme)
Analysis of energy consumption, utility balance, and pipeline hydraulics
Comparison of different alternatives in terms of cost, efficiency, and complexity
Selection of the optimal solution with a focus on productivity, safety, and economic viability

Phase Two – Detailed Engineering Design and Preparation of Engineering Documentation

Detailed Engineering Design

This stage represents the most comprehensive and critical phase of project engineering and includes the development of process designs, P&IDs, equipment lists, and construction drawings in accordance with international standards.

Phase Two Deliverables

Complete system design, including P&IDs, Plot Plans, and Layouts
Preparation of equipment data sheets for process equipment, storage tanks, pumps, compressors, and safety systems
Process and hydraulic calculations and equipment selection
Accurate cost estimation, project scheduling, and procurement planning
Preparation of tender documentation and Technical Bid Packages
Design of safety requirements, HAZOP studies, SIL studies, and control systems

Phase Three – Engineering Supervision and Site Support During Project Execution

Engineering Supervision & Site Support

In Phase Three, the Atieh Pardazan Sharif team maintains an active presence at the project site to monitor execution quality, verify compliance with engineering drawings, and ensure construction quality and HSE requirements.

Phase Three Deliverables

Comprehensive supervision of installation and commissioning activities for process units
Review and approval of equipment manufacturers’ documentation
Management of engineering changes (MOC) and resolution of conflicts arising during execution
HSE inspections, weld quality inspection, pressure testing, NDT, and equipment verification
Engineering support through commissioning and start-up

Conclusion

By providing specialized engineering and consulting services for the oil, gas, and petrochemical industries, Atieh Pardazan Sharif Holding offers clients a complete, reliable engineering pathway based on international standards—from project conception to final commissioning.

The results of this collaboration include:

Reduction of project costs
Increased efficiency and safety
Selection of the optimal process solutions and equipment
Assurance of execution quality and sustainable operation