Methods of directional drilling and forming kickoff plugs using self-degrading cement in subterranean well bores
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United States of America Patent
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Jan 5, 2010
Grant Date -
Aug 3, 2006
app pub date -
Jul 22, 2005
filing date -
Feb 1, 2005
priority date (Note) -
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Abstract
Methods of drilling a well bore in a subterranean formation comprising placing a self-degrading kickoff plug or the like in the well bore are provided. An example of a method is a method comprising: providing a self-degrading cement composition that comprises a degradable material, an acid source, a base source, and a water source; placing the self-degrading cement composition in a desired location in a well bore that penetrates a subterranean formation; and allowing the self-degrading cement composition to set to form a hardened kickoff plug.
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