Terrain, Ground Conditions and Geohazards: Evaluation and Implications for Pipelines

This chapter on terrain, ground conditions, and geohazards is from the proceedings of an international conference on the terrain and geohazard challenges facing onshore oil and gas pipelines (June 2004, London, United Kingdom). The authors describe how terrain, defined as ground surface shape and processes, and sub-surface ground conditions influence pipeline alignment, design, construction costs, and operational risks. They summarize the concept of geohazards and the influence of terrain and sub-surface conditions on engineering cost drivers and then consider ways in which these conditions can be identified and classified at successive stages through the pipeline project cycle. Terrain evaluation can involve a variety of low-cost techniques, including satellite image and aerial photograph interpretation, surface mapping, and description of geological exposures. These techniques can help identify and evaluate constraints to the proposed pipeline project. The authors review the aims of the terrain evaluation process, describe geohazard groupings, explain the standard pipeline project cycle, provide case examples of the use of terrain evaluation for corridor comparison and assessment, and discuss route definition and refinement. The authors conclude that early observations of the proposed site by geo-environmental specialists can help anticipate the ground and potential geohazards that may be encountered. This process allows the subsequent ground investigation to be tailored to the site and thus more efficient and cost-effective.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 78-94
  • Monograph Title: Terrain and Geohazard Challenges Facing Onshore Oil and Gas Pipelines. International Conference

Subject/Index Terms

Filing Info

  • Accession Number: 01109898
  • Record Type: Publication
  • ISBN: 0727732781
  • Files: TRIS
  • Created Date: Aug 28 2008 11:57AM