Engineering consultancy · Riyadh · GCC · India

Engineering design, analysis and documentation for oil & gas and industrial projects across the GCC

Mechanical, piping, structural, equipment and FEA / CFD engineering to API, ASME and Saudi Aramco standards – for EPC contractors, plant owners, fabricators and manufacturers in Saudi Arabia, the UAE, Qatar, Oman, Kuwait and Bahrain.

15+Years experience
76+Projects delivered
50+Evidence sheets
6+1GCC countries + India
  • Working to
  • API 650 / 653
  • ASME VIII
  • ASME B31.3
  • AISC 360
  • AWS D1.1
  • TEMA
  • ISO
  • Saudi Aramco SAES / SAMSS
  • SABIC
  • ADNOC

Our services

Complete engineering services

Every discipline your project needs – equipment, piping, structures, analysis, drawings and documents – designed by one team, to the same codes and the same standard of checking.

Mechanical & Rotating Equipment

Mechanical design and checks for pumps, compressors, fans, agitators and their packages.

  • Pump and compressor baseplates and supports
  • Nozzle load and alignment checks
  • Shaft, coupling and gearbox design checks
  • Equipment layouts and installation drawings
  • Datasheets, technical bid evaluation (TBE)
API 610API 617API 661API 686

Tanks, Vessels & Heat Exchangers

Static equipment design from datasheet to fabrication drawings, including repair and re-rating.

  • API 650 / 653 storage tanks and floating roofs
  • ASME VIII Div. 1 / 2 vessels, air receivers, KO drums
  • Shell & tube exchangers and air coolers
  • Nozzle, saddle, leg and lifting lug calculations
  • Repair, alteration and re-rating packages
API 650API 653ASME VIIITEMAWRC 107/297

Piping Design & Pipe Stress

Plant and pipeline piping from routing studies to stress-checked, construction-ready isometrics.

  • Piping layouts, GA and plot plans
  • Isometrics with BOM and weld numbers
  • CAESAR II stress and nozzle load analysis
  • Pipe supports, shoes and spring hangers
  • Line sizing, hydraulics and tie-in design
ASME B31.3B31.4B31.8SAES-L

Structural & Civil Engineering

Steel and concrete design for process plants, workshops and equipment support structures.

  • Steel structures, platforms and pipe racks
  • Stairs, ladders, handrails and walkways
  • Equipment and machine foundations
  • Base plates, anchor bolts and connections
  • Wind and seismic load analysis
AISC 360ACI 318ASCE 7SBC 301

FEA Stress & Fatigue Analysis

Finite element analysis where hand calculations are not enough – with code-based assessment.

  • Linear and nonlinear stress analysis
  • Nozzle-to-shell local stress (WRC / FEA)
  • Buckling and collapse checks
  • Fatigue life assessment
  • Fitness-for-service (FFS) Level 2 / 3
ASME VIII Div. 2API 579ANSYS

Vibration & Modal Analysis

Natural frequency and vibration studies to prevent resonance in piping, structures and machines.

  • Modal (natural frequency) analysis
  • Harmonic and transient response
  • Flow- and acoustic-induced vibration (FIV / AIV)
  • Machine foundation dynamic analysis
  • Root-cause support for vibration problems
ISO 20816ACI 351.3Energy Institute

CFD & Thermal Simulation

Computational fluid dynamics to see flow, pressure, temperature and mixing before you build.

  • Flow distribution and pressure drop
  • Multiphase, mixing and sloshing
  • Erosion and velocity checks
  • Heat transfer and thermal stress input
  • Silo, tank and duct flow studies
ANSYS FluentCFX
Explore service →Source: Supplied by SLETEC

Fabrication & Shop Drawings

Workshop-ready drawings that fabricators can cut, weld and inspect from without questions.

  • General arrangement (GA) drawings
  • Shop and fabrication drawings with weld details
  • Bill of materials and cutting lists
  • Sheet metal flat patterns and laser-cut DXF
  • Drawing checks and as-built updates
AWS D1.1ISO 2553AutoCADSolidWorks

Skids, Machines & Lifting

Packaged equipment and lifting design, from 3D model to certified calculation.

  • Pump, metering, dosing and chemical skids
  • Special machines, jigs and fixtures
  • Lifting beams, spreader bars and lugs
  • Lift plans and rigging calculations
  • Reverse engineering of spare parts
ASME BTH-1ASME B30.20AISC 360

Brownfield & 3D Laser Scanning

Accurate as-built data and modification design for operating plants and shutdowns.

  • 3D laser scanning and point clouds
  • Scan-to-CAD 3D models and as-built drawings
  • Tie-in and hot tap packages
  • Shutdown and turnaround engineering
  • Clash checks against existing plant
Scan-to-CADAs-builtTie-ins

E&I and Fire Safety

Electrical, instrumentation and fire protection layouts integrated with the mechanical design.

  • Cable tray and cable routing layouts
  • Instrument location and hook-up drawings
  • Fire water network, hydrants and monitors
  • Foam and deluge system layouts
  • Fire & gas detector layouts
NFPASAES-BIEC

MTO, MDR & Documentation

The documents your client, inspector and procurement team need – complete and on format.

  • MTO, BOQ and BOM
  • MDR and final data dossiers
  • Method statements and ITPs
  • Calculation reports and design basis
  • Vendor document review
Saudi AramcoSABICADNOC

Full scope

Capabilities across the asset lifecycle

All services →

Don't see your requirement? We cover far more than this list.

Ask an engineer

Our process

How a project runs

  1. 1

    Share your scope

    P&IDs, datasheets, sketches, photos or old drawings – by form, email or WhatsApp.

  2. 2

    Engineer review and fixed-price proposal

    Defined scope, deliverables and schedule – usually within 24 hours.

  3. 3

    Engineering and internal checking

    Executed to the applicable codes and your specifications, checked before each issue.

  4. 4

    Issue, comments, IFC and as-built

    Comments incorporated; final files handed over in native formats.

Sectors

Industries we serve

  • Oil & Gas
  • Petrochemical
  • Refinery
  • Power
  • Water & Desalination
  • Cement
  • Mining
  • Manufacturing
  • Fabrication Workshops
  • Offshore & Marine

Coverage

Where we work

All locations →

What engineering services does SLETEC provide?

Mechanical, piping, structural and E&I engineering; API 650 / 653 tank and ASME VIII vessel design; FEA stress, vibration and fatigue analysis, modal (frequency) analysis, CFD and pipe stress analysis; fabrication drawings; skid and machine design; brownfield and shutdown engineering; and MTO, MDR and method statement documentation.

Which countries do you serve?

Saudi Arabia, the UAE, Qatar, Oman, Kuwait and Bahrain from our Riyadh head office, supported by our engineering center in Trichy, India – and remotely worldwide.

Do you work to Saudi Aramco, SABIC and ADNOC standards?

Yes. Deliverables reference SAES and SAMSS, SABIC and ADNOC specifications and your project specification, together with API, ASME, AISC, AWS, TEMA and ISO.

Can you handle both large packages and single tasks?

Yes. We deliver multi-discipline IFC packages and also take defined single tasks – one calculation, one drawing or a design check – at a fixed price.

What do you need to prepare a quotation?

Whatever you have: P&IDs, datasheets, specifications, sketches, photos, old drawings or a short description. We reply with scope, schedule and a fixed price, usually within 24 hours.

Which software and file formats do you use?

AutoCAD, SolidWorks, ANSYS and Excel, delivering DWG, DXF, PDF, SolidWorks, STEP and IGES files or the format your project requires.

Is our project information kept confidential?

Yes. Project data is shared only with the engineers working on it. We sign NDAs on request.

Get a proposal

Tell us what you need

An engineer reviews every enquiry and replies with scope, schedule and a fixed price – usually within 24 hours.

SLETEC Engineering · Office No. 14/A, 2nd Floor, Rasheed & Othaim Center, Salah Al-Din Street (St. 60), intersection with Dhahran Street, Al Malaz, Riyadh 12642, Kingdom of Saudi Arabia · C.R. 1010604936

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