Sensitivity of storage field performance to geologic and cavern design parameters in salt domes.

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Description

A sensitivity study was performed utilizing a three dimensional finite element model to assess allowable cavern field sizes for strategic petroleum reserve salt domes. A potential exists for tensile fracturing and dilatancy damage to salt that can compromise the integrity of a cavern field in situations where high extraction ratios exist. The effects of salt creep rate, depth of salt dome top, dome size, caprock thickness, elastic moduli of caprock and surrounding rock, lateral stress ratio of surrounding rock, cavern size, depth of cavern, and number of caverns are examined numerically. As a result, a correlation table between the parameters ... continued below

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264 p.

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Ehgartner, Brian L. (Sandia National Laboratories, Albuquerque, NM) & Park, Byoung Yoon March 1, 2009.

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Description

A sensitivity study was performed utilizing a three dimensional finite element model to assess allowable cavern field sizes for strategic petroleum reserve salt domes. A potential exists for tensile fracturing and dilatancy damage to salt that can compromise the integrity of a cavern field in situations where high extraction ratios exist. The effects of salt creep rate, depth of salt dome top, dome size, caprock thickness, elastic moduli of caprock and surrounding rock, lateral stress ratio of surrounding rock, cavern size, depth of cavern, and number of caverns are examined numerically. As a result, a correlation table between the parameters and the impact on the performance of storage field was established. In general, slower salt creep rates, deeper depth of salt dome top, larger elastic moduli of caprock and surrounding rock, and a smaller radius of cavern are better for structural performance of the salt dome.

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264 p.

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  • Report No.: SAND2009-1278
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/959108 | External Link
  • Office of Scientific & Technical Information Report Number: 959108
  • Archival Resource Key: ark:/67531/metadc933155

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • March 1, 2009

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 1, 2016, 7:51 p.m.

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Ehgartner, Brian L. (Sandia National Laboratories, Albuquerque, NM) & Park, Byoung Yoon. Sensitivity of storage field performance to geologic and cavern design parameters in salt domes., report, March 1, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc933155/: accessed May 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.