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

Nobuo Morita, Tomoki Doi, Takanori Kinoshita

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

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.

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3789-3803
ページ数15
出版ステータスPublished - 2002
イベントProceedings of the 2002 SPE Annual Technical Conference and Exhibition - San Antonio, TX
継続期間: 2002 9 292002 10 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

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