Tubular members and threaded connections for casing drilling and method
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United States of America Patent
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Nov 16, 2004
Grant Date -
Jun 24, 2004
app pub date -
Dec 20, 2002
filing date -
Dec 20, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Oil country tubular goods and other types of tubular members are provided with threaded and coupled connections satisfactory for use in drilling and completing wellbores. The threaded and coupled connections are used to join sections of casing with each other to form a casing string which may be used to drill and complete a wellbore. Each tubular member has first and second pin ends with approximately the same thread form and thread profile with different pitch diameters. Standard API couplings may be used with the casing string.
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