Analysis of crack reopening behavior for hydrofrac stress measurement

T. Ito, K. Hayashi

研究成果: Article査読

20 被引用数 (Scopus)

抄録

The relation among the so-called reopening pressure, in situ stresses and injection flow rate was clarified theoretically and experimentally for the case that a transverse crack is induced perpendicularly to a borehole axis in hydraulic fracturing stress measurements. The results are summarized as follows. The reopening pressure, i.e. the borehole pressure at which the borehole pressure - time history during pressurization clearly deviates from a linear relationship, is basically governed by the in situ compressive stress normal to the crack plane, Sv. Its magnitude decreases and approaches the magnitude of Sv with decreasing injection flow rate.

本文言語English
ページ(範囲)1235-1240
ページ数6
ジャーナルInternational Journal of Rock Mechanics and Mining Sciences and
30
7
DOI
出版ステータスPublished - 1993 12月

ASJC Scopus subject areas

  • 地盤工学および土木地質学
  • 工学(全般)

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