Two-dimensional nonlinear finite element analysis of well damage due to reservoir compaction, well-to-well interactions, and localization on weak layers

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In this paper the authors present the results of a coupled nonlinear finite element geomechanics model for reservoir compaction and well-to-well interactions for the high-porosity, low strength diatomite reservoirs of the Belridge field near Bakersfield, California. They show that well damage and failures can occur under the action of two distinct mechanisms: shear deformations induced by pore compaction, and subsidence, and shear deformations due to well-to-well interactions during production or water injection. They show such casting damage or failure can be localized to weak layers that slide or slip under shear due to subsidence. The magnitude of shear displacements and ... continued below

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8 p.

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Hilbert, L.B. Jr.; Fredrich, J.T.; Bruno, M.S.; Deitrick, G.L. & Rouffignac, E.P. de May 1996.

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Description

In this paper the authors present the results of a coupled nonlinear finite element geomechanics model for reservoir compaction and well-to-well interactions for the high-porosity, low strength diatomite reservoirs of the Belridge field near Bakersfield, California. They show that well damage and failures can occur under the action of two distinct mechanisms: shear deformations induced by pore compaction, and subsidence, and shear deformations due to well-to-well interactions during production or water injection. They show such casting damage or failure can be localized to weak layers that slide or slip under shear due to subsidence. The magnitude of shear displacements and surface subsidence agree with field observations.

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8 p.

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OSTI as DE96010331

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  • 2. North American rock mechanics symposium: tools and techniques in rock mechanics, Montreal (Canada), 19-21 Jun 1996

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  • Other: DE96010331
  • Report No.: SAND--96-1064C
  • Report No.: CONF-960619--4
  • Grant Number: AC04-94AL85000;AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 238473
  • Archival Resource Key: ark:/67531/metadc671875

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  • May 1996

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  • June 29, 2015, 9:42 p.m.

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  • April 14, 2016, 9:50 p.m.

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Hilbert, L.B. Jr.; Fredrich, J.T.; Bruno, M.S.; Deitrick, G.L. & Rouffignac, E.P. de. Two-dimensional nonlinear finite element analysis of well damage due to reservoir compaction, well-to-well interactions, and localization on weak layers, article, May 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc671875/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.