Method for collecting geological data ahead of a drill bit
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United States of America Patent
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May 16, 2006
Grant Date -
Oct 17, 2002
app pub date -
Jun 11, 2002
filing date -
Feb 19, 1999
priority date (Note) -
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Abstract
A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
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