Modeling hydraulic fractures propagation considering changing in the primary energy loss mechanism

D. Klimenko, A. Dahi Taleghani

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

Abstract

Accurate modeling of the hydraulic fracturing treatment is important to design a successful treatment and prevent screenout. An innovative numerical method is presented, here, for modeling fluid-driven fractures propagation considering changing in the primary energy loss mechanism during propagation. The proposed method is based on the extended finite element methods with modifications to incorporate variable stress singularity at the crack tips for the transition between toughness-dominated and viscosity-dominated regimes. Moreover, a consistent enriched function is introduced for fluid pressure calculations close to the fracture tips to catch its singularity. The numerical results were validated against the analytical solutions for two extreme hydraulic fracture propagation regimes. Mesh independency and convergence rate of the proposed method are verified. Comparison between fracture volumes assuming changing in the primary energy loss mechanism and constant primary energy loss mechanism during hydraulic fracture propagation is provided.

Original languageEnglish (US)
Title of host publication51st US Rock Mechanics / Geomechanics Symposium 2017
PublisherAmerican Rock Mechanics Association (ARMA)
Pages2647-2652
Number of pages6
ISBN (Electronic)9781510857582
StatePublished - Jan 1 2017
Event51st US Rock Mechanics / Geomechanics Symposium 2017 - San Francisco, United States
Duration: Jun 25 2017Jun 28 2017

Publication series

Name51st US Rock Mechanics / Geomechanics Symposium 2017
Volume4

Other

Other51st US Rock Mechanics / Geomechanics Symposium 2017
CountryUnited States
CitySan Francisco
Period6/25/176/28/17

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geophysics

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