Safety of casing shoe test and casing shoe integrity after testing

N. Morita, G. F. Fuh, P. A. Boyd

    研究成果: Conference contribution

    4 被引用数 (Scopus)

    抄録

    It is desirable to extend a fracture as far as possible during a casing shoe test to gather data for fracture gradient determination. However, this practice may result in a lost circulation occurrence or reduction of casing shoe strength due to induced fracture. Hence, the common field practice is to stop the casing shoe test prematurely just to ensure the casing shoe strength. This paper answers drilling engineering concerns regarding: (1) circumstances of a lost circulation event during a casing shoe test and how extensively a fracture propagates; (2) how much information can be obtained as a function of the amount of injected drilling fluid; and (3) expected casing shoe integrity following testing. Laboratory data and a numerical model are used to study the phenomena which occur during casing shoe tests. A guideline of safe casing shoe tests is suggested.

    本文言語English
    ホスト出版物のタイトルProceedings - SPE Annual Technical Conference and Exhibition
    Place of PublicationRichardson, TX, United States
    出版社Publ by Soc of Petroleum Engineers of AIME
    ページ229-243
    ページ数15
    Delta
    出版ステータスPublished - 1991
    イベントProceedings of the 1991 SPE Annual Technical Conference and Exhibition -
    継続期間: 1991 10 61991 10 9

    Other

    OtherProceedings of the 1991 SPE Annual Technical Conference and Exhibition
    Period91/10/691/10/9

    ASJC Scopus subject areas

    • Geology
    • Geotechnical Engineering and Engineering Geology

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