Boring or penetrating the earth – Automatic control – Of boring means including a below-ground drive prime mover
Reexamination Certificate
2005-11-29
2005-11-29
Bagnell, David (Department: 3672)
Boring or penetrating the earth
Automatic control
Of boring means including a below-ground drive prime mover
C175S027000, C175S045000, C175S050000, C175S061000, C175S039000
Reexamination Certificate
active
06968909
ABSTRACT:
A system is for controlling borehole operations using a computational drilling process model representing the combined effect of downhole conditions and the operation of a drillstring. The drilling process model is continually updated with downhole measurements made during a drilling operation. From the updated drilling process model, a set of optimum drilling parameters is determined and communicated to a surface equipment control system. Further, the system allows the surface equipment control system to automatically adjust current surface equipment control settings based on the updated optimum drilling parameters. Various control scripts are generated and executed to inform the surface equipment control system based on a present drilling mode.
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Aldred Walter D.
Meehan Richard
Bagnell David
Echols Brigitte L.
McEnaney Kevin P.
Schlumberger Technology Corporation
Stephenson Daniel P.
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