Well orientation effect on borehole stability

Nobuo Morita

研究成果

24 被引用数 (Scopus)

抄録

Using laboratory and field borehole stability data, an empirical correlation of borehole size and stress gradient effects is derived. Using the correlation, the well orientation effect on borehole stability is numerically studied. The study shows that the borehole stability is controlled, under the normal condition, by the largest in-situ stress in the radial borehole direction so that the borehole orientation effect for a horizontal well is not significant if two horizontal stresses are less than the vertical overburden pressure, however, if one horizontal stress is greater than the vertical stress, the orientation significantly affects the borehole stability.

本文言語English
ホスト出版物のタイトルProceedings - SPE Annual Technical Conference and Exhibition
ページ449-460
ページ数12
出版ステータスPublished - 2004
イベント2004 SPE Annual Technical Conference and Exhibition - Houston, TX
継続期間: 2004 9 262004 9 29

Other

Other2004 SPE Annual Technical Conference and Exhibition
CityHouston, TX
Period04/9/2604/9/29

ASJC Scopus subject areas

  • 地盤工学および土木地質学
  • 地質学

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