Determination of the minimum horizontal principal stress from pressure decay after breakdown in hydraulic fracturing

Takatoshi Ito, Kazuo Hayashi

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

Abstract

A new method is presented for determining the minimum horizontal principal stress from the pressure decay curve after breakdown during hydraulic fracturing with a constant injection flow rate. The method is developed by the analysis of the growing process of vertically created cracks during hydraulic fracturing being based on the linear fracture mechanics. The method utilizes the plot of the downhole fluid pressure vs the inverse of the cubic root of time since breakdown. The plot fits to a straight line. The line is extrapolated to the time when the time since breakdown is infinite. The pressure value evaluated by the extrapolation gives the magnitude of the minimum horizontal principal stress. In order to verify the present method, laboratory hydraulic fracturing experiments were performed. The results show that the method determines the minimum horizontal principal stress within the error of about 10%.

Original languageEnglish
Title of host publicationTransactions - Geothermal Resources Council
PublisherPubl by Geothermal Resources Council
Pages483-488
Number of pages6
ISBN (Print)0934412693
Publication statusPublished - 1991 Dec 1
Event1991 Annual Meeting of the Geothermal Resources Council - Sparks, NV, USA
Duration: 1991 Oct 61991 Oct 9

Publication series

NameTransactions - Geothermal Resources Council
Volume15
ISSN (Print)0193-5933

Other

Other1991 Annual Meeting of the Geothermal Resources Council
CitySparks, NV, USA
Period91/10/691/10/9

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Geophysics

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