Schlumberger Technology Corporation

Geoservices Equipements

Axel Quignard

Vincent Chatelet

Peter D Wraight

Luke T Perkins

Jean-Pierre Poyet

Fabien Nibodeau

An installation for intervention in a well, comprises a lower assembly comprising a neutron generator and a power source electrically connected to the neutron generator; a surface assembly comprising one or more safety devices, each safety device being either in a safe state or an unsafe state; and a communication module that connects the lower and surface assemblies. The surface assembly also comprises a surface transmitting device for transmitting data to the downhole assembly via the communication module including a first transmitter for transmitting an activating command, where the first transmitter transmits the activating command only if each of the safety device is in a safe state, and a second transmitter for transmitting a stopping command, where the second transmitter transmits the stopping command if one of the safety device is in an unsafe state.

Installation for intervention in a well comprising a neutron generator, and method associated therewith

A device including a lower assembly () and a cable () for deploying the lower assembly () in the well (). The lower assembly () includes a pyrotechnic system (), and a firing assembly further including a module () for controlling a power battery () and a power module (). The control module () includes arming means () of the power module () capable of connecting the power battery () to the power module () upon receiving an electrical arming signal transmitted through the cable (). It includes means () for triggering the pyrotechnic system () capable of connecting the power module () to the pyrotechnic system (), upon receiving a distinct electrical triggering signal posterior to the arming signal.

Device for intervention in a well comprising a pyrotechnic system, installation and method associated therewith

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Paris, France

Axel Quignard