Modeling simultaneous growth of multiple hydraulic fractures and their interaction with natural fractures

Jon E. Olson, Arash Dahi Taleghani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

152 Scopus citations

Abstract

Hydraulic fracture diagnostics have highlighted the potentially complex natural of hydraulic fracture geometry and propagation. This has been particularly true in the cases of hydraulic fracture growth in naturally fractured reservoirs, where the induced fractures interact with pre-existing natural fractures. A simplified numerical model has been developed to account for mechanical interaction between pressurized fractures, and to examine the simultaneous propagation of multiple (<2) hydraulic fracture segments. Fracture intersection is presumed to communicate the hydraulic fracturing fluid to the natural fracture, which then takes up the continued propagation. Simulations for multi-stage horizontal well treatments and single stage vertical well treatments show that fracture pattern complexity is strongly controlled by the magnitude of the hydraulic fracture net pressure relative to the in situ horizontal differential stress as well as the geometry of the natural fractures. Analysis of the neartip stress field around a hydraulic fracture also indicates that induced stresses may be high enough to debond sealed natural fractures ahead of the arrival of the hydraulic fracture tip.

Original languageEnglish (US)
Title of host publicationSociety of Petroleum Engineers - SPE Hydraulic Fracturing Technology Conference 2009
Pages726-732
Number of pages7
StatePublished - Nov 20 2009
EventSPE Hydraulic Fracturing Technology Conference 2009 - The Woodlands, TX, United States
Duration: Jan 19 2009Jan 21 2009

Other

OtherSPE Hydraulic Fracturing Technology Conference 2009
CountryUnited States
CityThe Woodlands, TX
Period1/19/091/21/09

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes
  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

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    Olson, J. E., & Dahi Taleghani, A. (2009). Modeling simultaneous growth of multiple hydraulic fractures and their interaction with natural fractures. In Society of Petroleum Engineers - SPE Hydraulic Fracturing Technology Conference 2009 (pp. 726-732)