Storage Tank Secondary Containment

This paper will compare the effectiveness of various types of secondary containment for storage tanks in onshore hydrocarbon production facilities. Secondary containment prevents liquid that might escape the tank from contacting the surrounding environment, especially any main water bodies. Secondary containment design is influenced by the 40-Code of Federal Regulation (CFR) Part 112 Oil Pollution Prevention and EPA's Spill Prevention Control and Countermeasure (SPCC) Guidance. This paper will summarize the acceptable methods of secondary containment construction utilized by Chesapeake Energy, which consist of polyethylene liner with and without aggregate cover, polyurea surface liner, concrete slab with wall, geo-synthetic clay liner, and compacted clay/silt berm construction. Seepage estimates will be calculated on secondary containments full of liquid with a 48-hour retention period based on time duration of daily field inspection and clean-up operations. The calculation methodology is based on diffusion and advective flows. The diffusion flow rate through soil, concrete or liner is calculated using Bernoulli's Equation on hydraulic head, and Darcy's Law on liquid flow through a permeable element. The advective flow rate through a possible defect on a liner is calculated using Touze-Foltz and Giroud's Equation. Finally, this paper will review the performance of the aforementioned secondary containment types and contrast estimated seepages with the SPCC requirement of a sufficiently impervious system.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: pp 724-733
  • Monograph Title: Shale Energy Engineering 2014: Technical Challenges, Environmental Issues, and Public Policy

Subject/Index Terms

Filing Info

  • Accession Number: 01535265
  • Record Type: Publication
  • ISBN: 9780784413654
  • Files: TRIS, ASCE
  • Created Date: Jul 14 2014 3:01PM