Method for window formation in wellbore tubulars
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United States of America Patent
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Feb 15, 2000
Issued Date -
N/A
app pub date -
Oct 24, 1997
filing date -
Dec 11, 1995
priority date (Note) -
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Abstract
New systems and methods have been invented for explosively forming openings, ledges, windows, holes, and lateral bores through tubulars such as casing, which openings may, in cerain aspects, extend beyond the casing into a formation through which a wellbore extends. In certain aspects openings (e.g. ledges, initial, or completed windows) in wellbore tubulars (e.g. tubing or casing) are made using metal oxidizing systems, water jet systems, or mills with abrasive and/or erosive streams flowing therethrough and/or therefrom.
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