Acid-treatment effects on openhole stability in limestone

Nobuo Morita, Tomoki Doi, Takanori Kinoshita

    研究成果: Article査読

    抄録

    Openhole completions in limestone without a slotted or perforated liner became popular. Unlike other formations, borehole failure in limestone is induced by shear failure after pore collapse. An acid treatment enlarges the borehole and creates a wavy borehole surface. The acidized zone can contain wormholes or enlarged pores. However, since the Young's modulus also is reduced, the reduction of rock strength does not reduce borehole stability significantly. Normally, because limestone has a relatively high UCS, it is likely that a protective slotted or perforated liner can be deleted for openhole completions.

    本文言語English
    ページ(範囲)59-60
    ページ数2
    ジャーナルJPT, Journal of Petroleum Technology
    54
    10
    出版ステータスPublished - 2002 10

    ASJC Scopus subject areas

    • 化学工学(全般)
    • 地球惑星科学(その他)
    • エネルギー工学および電力技術
    • 燃料技術

    フィンガープリント

    「Acid-treatment effects on openhole stability in limestone」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル