Boring or penetrating the earth – Automatic control
Reexamination Certificate
2006-10-31
2006-10-31
Gay, Jennifer H. (Department: 3672)
Boring or penetrating the earth
Automatic control
C175S045000, C702S009000
Reexamination Certificate
active
07128167
ABSTRACT:
A method and system is disclosed for automatically detecting the state of a drilling rig during the drilling process of a wellbore. Two or more, but preferably four independent input data channels are received, each input data channel representing a series of measurements made over time during the drilling process. Based on the input channels the most likely state of the drilling rig is detected from at least three possible rig states. The detection method is preferably probabilistic and even more preferably based on particle filtering techniques. The preferred systems and methods disclosed are also capable of detecting events and displaying or notifying drilling personnel of the detected events and suggesting corrective action.
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Aldred Walt
Dunlop Jonathan
Fitzgerald William John
Lesso William
Meehan Richard
DeStefanis Jody Lynn
Gahlings Steven
Gaudier Dale
Gay Jennifer H.
Schlumberger Technology Corporation
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