Our Engineering Disciplines
We combine deep domain knowledge with advanced modeling software to provide precise, code-compliant solutions across the asset lifecycle.
Onshore & Offshore Design
Front-End Engineering and Detail Design for oil and gas production facilities in marine and terrestrial environments.
- Feasibility Study & Concept Select
- Environmental Routing Studies
- Structural Stress & Waves Analysis
- Subsea Tieback Integrations
- Asset Life Extension Programs
Pipeline Engineering
Comprehensive design, routing, and stability calculations for transmission pipelines and pipe-in-pipe systems.
- Onshore & Offshore Alignment Sheets
- Mechanical Integrity Calculations
- Pipeline Pre-commissioning
- Thermal expansion & Soil interaction
- Decommissioning Strategies
Piping Design
Safe routing, stress modeling, and isometric production for process plant facilities.
- Equipment Layout & Plot Plans
- Piping Isometrics & 3D Modeling
- Pipe Stress Analysis (CAESAR II)
- Bulk Material Take Off (MTO)
- Supports & Hanger Selection
Plant Design
Multi-disciplinary plant layouts ensuring optimal constructability, access, and operations maintenance.
- Process Unit Site Layouts
- Constructability Reviews
- Equipment Space Optimization
- Utility System Integrations
- As-Built 3D Reconstruction
Process & Safety
Developing process flow architecture and safety reviews to mitigate operational risks.
- PFD & P&ID Development
- Equipment & Line Hydraulics
- HAZOP & HAZID Support
- Safety Integrity Level (SIL) Studies
- Relief System Sizing & Vent Analysis
Mechanical Equipment
Detail engineering for static and rotating machinery including pressure vessels and pumps.
- Vessel & Heat Exchanger Design
- Data Sheets & Technical Specs
- Pump & Compressor Sizing
- Vendor Document Reviews
- Package Engineering Coordination
Civil & Structural
Analysis and foundation engineering for industrial steel and concrete structures.
- Equipment Support Foundations
- Pipe Rack Structural Modeling
- Dynamic Pile Analysis
- Steel Shop Fabrication Drawings
- Structural Modification Studies
Electrical & Instruments
Control architectures, plant automation, and power distribution sizing.
- Single Line Diagrams (SLDs)
- Cable Routing & Tray Layouts
- Field Instrument Specifications
- Distributed Control Systems (DCS)
- Earthing & Lighting Protection
Engineering Management
Coordination and control of deliverables, estimation support, and technical project oversight.
- Project Execution Plans
- Interface Management Control
- CTR Estimation & CTR Catalogs
- Procurement & Material Planning
- Asset Documentation Management
Frequently Asked Questions
Common enquiries regarding our multi-disciplinary engineering consultancy services.
ASHAAH LIMITED is a multi-disciplinary consulting engineering firm offering nine core engineering disciplines that cover the entire lifecycle of capital energy projects, from initial feasibility studies through to final commissioning. Our comprehensive services include Onshore and Offshore Design Engineering, Pipeline Engineering, Piping Design, Plant Design, Process and Safety Management, Mechanical Equipment specification, Civil and Structural design, Electrical and Instrumentation systems, and Project Engineering Management. By consolidating these key engineering disciplines under a single execution framework, we enable seamless interface control, eliminate design contradictions, and reduce procurement risks for upstream and midstream oil, gas, and petrochemical facilities worldwide. Our engineering subject matter experts design fully code-compliant, optimized, and safety-critical infrastructure that ensures operating systems perform reliably and efficiently over decades of service, helping clients achieve their financial and operational goals with zero compromise on quality and safety.
ASHAAH LIMITED was founded in 2017 to provide advanced and customized project solutions to the global upstream and midstream sectors. The company is registered in England and Wales under Company Registration Number 10778055, with its registered office address at C/O Aardvark Accounting, 1 Cedar Office Park, Cobham Road, Wimborne, United Kingdom, BH21 7SB. Over the years, ASHAAH LIMITED has grown into a leading consulting engineering partner for energy companies, oilfield service firms, and major engineering, procurement, and construction (EPC) contractors. By optimizing design costs and guaranteeing strict adherence to international safety codes, we ensure capital projects are executed to the highest standards. Our corporate heritage is defined by engineering excellence, innovation, and an uncompromising commitment to safety and quality across all onshore and offshore projects we deliver, establishing us as a highly trusted, reliable advisor in the UK and international markets.
ASHAAH LIMITED serves the upstream, midstream, and downstream sectors of the global oil and gas industry, including petrochemical facilities, hydrocarbon processing plants, oil refineries, and large-scale energy infrastructure projects. We provide specialized consulting engineering and design services for onshore facilities, marine subsea installations, and offshore production platforms. Our designs are implemented across worldwide networks of energy assets, serving major end-user operators and EPC contractors. By engineering highly reliable systems for pipeline transport, piping layouts, plant automation, civil foundations, structural steel, process safety containment, and electrical distribution, we help maintain secure and stable operations. We assist clients in navigating the complex regulatory, environmental, and technical requirements of their assets, ensuring that plant infrastructure performs safely and productively while minimizing environmental impact and lifecycle operating expenditures over decades of continuous service, which is critical for long-term operational success.