Reliability of in Situ Stress Evaluated by Hydraulic Fracturing Stress Measurement

Kazuo Hayashi, Akira Sato, Takatoshi Ito

Research output: Contribution to journalArticlepeer-review

Abstract

Hydraulic fracturing stress measurement technique is the most well-known method for in situ stress measurements. However, a general method has not yet been established for estimating the reliability of the evaluated in situ stress. This paper presents a new method for estimating the reliability of the in situ stress evaluated by hydraulic fracturing stress measurement technique which utilizes a shut-in pressure and an orientation of cracks induced by hydraulic fracturing. The validity of the method was examined by applying it to two sets of artificial data constructed for eight cracks under a given stress state. The shut-in pressure for each crack was given by assuming the shut-in pressure to be equal to the normal stress acting perpendicularly to the crack. It was revealed that the shut-in pressure for each crack was most crucial for obtaining reliable results.

Original languageEnglish
Pages (from-to)2599-2604
Number of pages6
JournalTransactions of the Japan Society of Mechanical Engineers Series A
Volume61
Issue number592
DOIs
Publication statusPublished - 1995

Keywords

  • Elasticity
  • Experimental Stress Analysis
  • Hydraulic Fracturing
  • In situ Stress
  • Inverse Problem

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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