Incoherent hydro-frac results & its implications in design of crude oil storage caverns
Incoherent results of in-situ stress measurements and their implications in designing a crude oil storage caverns project are presented in this paper. Core-discing at depths corresponding to abnormally higher stress magnitude values were observed at the project site. It is brought to the notice that an optimistic assessment of in-situ stresses may result into costly design surprises during the excavation stage. Consideration of incoherency in the computed in-situ stress magnitudes and orientation resulted into lowering of the caverns level farther 5m from the surface than the design requirements as per the storage pressure. The paper also briefly outlines the project settings, fundamentals of crude oil storage projects in unlined mined caverns and in-situ stress measurements using hydro-frac technique. Impacts of in-situ stress regime on the caverns design is evaluated by using numerical modeling for which plain strain numerical models are prepared using a general purpose finite difference code, FLAC3D.
M.R. Saharan A. Sinha K. Srinivasan V.V. Nagada S. Panda H.S. Mitri F. Rummel U. Weber
Central Institute of Mining & Fuel Research (CIMFR), India Hindustan Petroleum Corporation Limited (HPCL), India McGill University, Canada MeSy GmbH, Germany
国际会议
The Fifth International Symposium on In-situ Rock Stress(第五届国际岩石应力研讨会)
北京
英文
863-868
2010-08-25（万方平台首次上网日期，不代表论文的发表时间）