System and method for interpreting drilling date

Details System and method for interpreting drilling date System and method for interpreting drilling date

2006-10-03

2006-10-03

Bagnell, David (Department: 3672)

Boring or penetrating the earth

With signaling, indicating, testing or measuring

C166S250010, C073S152430

Reexamination Certificate

active

07114579

ABSTRACT:
A method is disclosed for identifying potential drilling hazards in a wellbore, including measuring a drilling parameter, correlating the parameter to depth in the wellbore at which selected components of a drill string pass, determining changes in the parameter each time the selected components pass selected depths in the wellbore, and generating a warning signal in response to the determined changes in the parameter. Another disclosed method includes determining times at which a drilling system is conditioning the wellbore, measuring torque, hookload and drilling fluid pressure during conditioning, and generating a warning signal if one or more of maximum value of measured torque, torque variation, maximum value of drill string acceleration, maximum value of hookload and maximum value of drilling fluid pressure exceeds a selected threshold during reaming up motion of the drilling system.

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patent: 2003/0151977 (2003-08-01), Shah et al.

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