Schlumberger Technology Corporation

Westerngeco L.l.p.

Guillaume Jean Daniel Tamboise

Kambiz Iranpour

Rustam Isangulov

Maria Fox

Derek Long

Einar Holst

A method includes accessing a domain model plan that includes a time independent initial state and a time independent goal state and sequences of events that include a sequence of a first event, a second event and a third event with conditional interrelationships; accessing operational data that include a failure condition for the third event and a time constraint for the failure condition; issuing a control instruction to rigsite equipment to perform a drilling-related action for generating the third event; during performance of the drilling-related action for generating the third event, receiving sensor data germane to the failure condition; upon occurrence of the failure condition, timing a duration of the occurrence of the failure condition; comparing the duration to the time constraint for the failure condition; and, based on the comparing, deciding to re-plan the domain model plan or to continue execution of the domain model plan.

Method of creating and executing a plan

An airborne vehicle includes a positioning system to acquire information relating to a position of the airborne vehicle, and a measurement system to transmit signals to and receive signals from survey sensors of a survey arrangement used to survey a target structure, the received signals indicating positions of the respective survey sensors.

Positioning survey sensors using an airborne vehicle

A system for controlling drilling unit apparatus includes a plurality of drilling unit apparatus each operated by a corresponding controller. Any one or more of the controllers is in signal communication with either or both of (i) at least one sensor that generates a signal related to an operating condition of the drilling unit apparatus and (ii) at least one other of the controllers to accept as input therefrom a signal related to an operating state of the corresponding drilling unit apparatus. A plurality of time reference signal receivers is each in signal communication with a corresponding controller. An absolute time reference signal transmitter is in signal communication with each time reference signal receiver such that any one or more of the controllers operates its respective drilling apparatus in response to either or both of (i) the sensor signal and (ii) the signal from the at least one other controller.

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Katy, TX, United States of America

Guillaume Jean Daniel Tamboise