Shear-type borehole wall shifts induced during lost circulations

D. Iwashita, N. Morita, M. Tominaga

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

Abstract

Three typical borehole wall shifts during lost circulations are studied and parameter studies are conducted for evaluating the magnitude of the shifts. (A) Slant-crack induced around vertical wells during lost circulations. Parameters varied are the frac size/wellbore size, frac angle, borehole pressure and σH1H2σv ratio. (B) Borehole wall shifts induced during the drilling of normal, thrust, and strike-slip fault areas. (C) Borehole wall shifts induced for an inclined well due to a fracture induced in perpendicular to the minimum in-situ stress.

Original languageEnglish
Title of host publicationProceedings - SPE Annual Technical Conference and Exhibition
Pages1558-1567
Number of pages10
Volume3
Publication statusPublished - 2006
EventSPE Annual Technical Conference and Exhibition, ATCE 2006: Focus on the Future - San Antonio, TX
Duration: 2006 Sep 242006 Sep 27

Other

OtherSPE Annual Technical Conference and Exhibition, ATCE 2006: Focus on the Future
CitySan Antonio, TX
Period06/9/2406/9/27

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ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

Cite this

Iwashita, D., Morita, N., & Tominaga, M. (2006). Shear-type borehole wall shifts induced during lost circulations. In Proceedings - SPE Annual Technical Conference and Exhibition (Vol. 3, pp. 1558-1567)