A New Fracture-Unit Model and Its Application to a Z-Fold Fracture

Wanjing Luo, Changfu Tang, Yingfang Zhou

Research output: Contribution to journalArticle

Abstract

Following the Cinco-Ley fracture model (Cinco-Ley et al. 1978) and the Luo-Tang wing model (Luo and Tang 2015a), we developed a new fracture-unit model. By coupling the Fredholm integral equation for a fracture with a reservoir equation, we present a new semianalytical method in the Laplace domain, and an example of a Z-fold fracture is then presented to demonstrate the applicability of the fracture-unit model. The effects of fracture conductivity, fracture geometry, and branch length on the transient wellbore pressure are discussed in detail. Our work provides a novel forward model to implement the law of fluid flow in complex fractures.

Original languageEnglish
Article numberSPE-194024-PA
Number of pages15
JournalSPE Journal
Volume24
Issue number1
DOIs
Publication statusPublished - 1 Feb 2019

Keywords

  • Cyclodextrin
  • Polyrotaxane
  • Pulley effect
  • Slide-ring gel
  • COMPLEX
  • FLUID-FLOW
  • NON-DARCY-FLOW
  • WELL
  • SHALE-GAS-RESERVOIRS
  • CONDUCTIVITY
  • DISCRETE
  • PRODUCTIVITY
  • PRESSURE-TRANSIENT ANALYSIS
  • PROPAGATION

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