Stability of an Openhole Completed in a Limestone Reservoir with and without Acid Treatments

Nobuo Morita, Tomoki Doi, Takanori Kinoshita

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

4 Citations (Scopus)

Abstract

The stability of an openhole completion in a limestone reservoir was investigated. The stability of the borehole after acid treatment was also studied. The stability study was conducted by simulating a horizontal well with three different principal in-situ stresses. It was found that boreholes in a limestone induce a shear failure at the borehole surface after a pore collapse is induced. Because of this highly ductile shear failure, a horizontal well is stable even though the ratio of effective horizontal and vertical stress is high. It was also observed that an openhole remains stable even after acidization.

Original languageEnglish
Title of host publicationProceedings - SPE Annual Technical Conference and Exhibition
Pages3789-3803
Number of pages15
Publication statusPublished - 2002
EventProceedings of the 2002 SPE Annual Technical Conference and Exhibition - San Antonio, TX
Duration: 2002 Sep 292002 Oct 2

Other

OtherProceedings of the 2002 SPE Annual Technical Conference and Exhibition
CitySan Antonio, TX
Period02/9/2902/10/2

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

Fingerprint Dive into the research topics of 'Stability of an Openhole Completed in a Limestone Reservoir with and without Acid Treatments'. Together they form a unique fingerprint.

  • Cite this

    Morita, N., Doi, T., & Kinoshita, T. (2002). Stability of an Openhole Completed in a Limestone Reservoir with and without Acid Treatments. In Proceedings - SPE Annual Technical Conference and Exhibition (pp. 3789-3803)