Schlumberger Technology Corporation

Yuzhen Xue

Joergen Kringen Johnsen

Mbaga Louis Ahorukomeye

Rui Pan

Mahmoud Hadi

Juan Jose Rojas

Hugo Rosano

Jason Enderby

An augmenting controller for augmenting control of an actuator by a component controller. The actuator is operable to change an operational parameter of a component of a drilling rig. The component controller is configured for communicating control signals to the actuator to control the actuator and thereby control operation of the component. The augmenting controller is operable to augment the control signals.

Controller augmenting existing control system

First time-based data, indicative of a first parameter, varies in value with respect to time and is associated with a drilling operation utilized to construct a well extending into a subterranean formation. A moving window transform of second time-based data is performed to generate a three-dimensional expression of frequency and amplitude of the first parameter or a second parameter. The second time-based data is based on the first time-based data. The second parameter varies in value with respect to time and is dependent upon the first parameter. The drilling operation is assessed based on the expression.

Performance index using frequency or frequency-time domain

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Houston, TX, United States of America

Yuzhen Xue