OGI provides engineering consultancy services to the oil and gas industry throughout Asia and other parts of the world, although our focus is on South East Asia. These services include:

• conceptual and feasibility studies

• specification and management of
  - topographic surveys
  - soil investigations
  - hydrographic surveys

• front end engineering designs

• preparation of cost estimates

• economic evaluation of projects

• detailed engineering including
  - computer analyses
  - calculations
  - design reports
  - specifications
  - drawings

• fabrication, construction and installation supervision

• government submissions, approvals, permits

• preparation of as-built drawings and documentation

• project management services, including
  - planning
  - organizing
  - monitoring
  - supervising
  - controlling
  - documenting

• contract management services, including
  - contract documents
  - scope of work
  - specifications
  - preparation of tender documents
  - controlling
  - evaluation of tender

• procurement assistance

• inspection of fabrication, construction and installation

PIG LAUNCHERS ON JETTY

For detailed design of pipeline systems and jetties we draw on our considerable experience from previous projects, and we use commercially available software, together with our key strength -  our in-house software and design procedures. For pipeline design we have developed special expertise in solving design problems and ensuring the pipeline satisfies the latest design codes. We can swiftly and accurately perform pipeline calculations for hydraulic flow analysis (liquid and gas), thermal analyses and temperature loss or gain calculations, expansion movement of pipelines, stress analysis of pipelines and risers, stability calculations, cathodic protection calculations plus much more.

RISERS FOR OFFSHORE  PLATFORM	WELDING PIPES ONBOARD LAYBARGE FOR SUBMARINE PIPELINE

We perform all aspects of detailed design for submarine pipelines, including PLEMs for SBM systems. For some projects our clients are the owners of the pipelines, for others we work for the EPC contractor. We analyse and design subsea pipelines from feasibility studies through detailed design and provide construction supervision and support. Specific design topics for submarine pipelines include sacrificial anodes, pipeline spanning and bottom roughness analysis, temperature profiles and insulation, on-bottom stability, pipeline protection and pipelay analysis. OGI has developed specific expertise in the design of pipeline protection systems. We have designed the trench and armour rock required to protect the pipeline from dropped and dragged anchors. For PLEMs we design the piping, the steel structure and the pile foundations.

HORIZONTAL DIRECTIONAL DRILLING RIG INSTALLING PIPELINE AT SHORE CROSSING

We perform layout studies for jetties and wharves, and determine the design loads for various size vessels in accordance with the OCIMF guidelines and BS 6349. Based on these design requirements we can perform preliminary and detailed designs for all types of jetties. Our design capabilities encompass the piled foundations, the main structure, and the mechanical and piping systems. We draw on our experience of the design of many different jetties to ensure the most appropriate and economical structural concepts are utilized for each new project. We prepare all the drawings needed for the construction contract, as well as specifications and the scope of work for construction if required.

STEEL PILES SUPPORTING NEW JETTY

OGI has many years of experience in preparing documents and drawings for submission to the relevant government authorities in Singapore. We regularly perform this task for different types of projects including pipelines, jetties and civil and structural works.