Ion Geophysical Corporation

Digicourse, Inc.

Paul Brettwood

Jacques Pierre Leveille

Jeffrey Alan Meredith

Timothy A Dudley

Darrell Burch

An attachment system for releasably attaching a sensor node to a cable when in a coupled state includes a clamp base and a clamp grip. The clamp base is fixed to a surface of the sensor node. The clamp base further includes a latch that is biased in a latched position when the attachment system is in both the coupled state and an uncoupled state. The clamp grip is pivotably attached the clamp base and biased in an open position when the attachment system is in the uncoupled state. The clamp grip is secured to the clamp base by the latch when the attachment system is in the coupled state.

Sensor node attachment mechanism and cable retrieval system

A method for acquiring seismic data comprises operating a seismic vessel towing at least one of a seismic streamer with a plurality of seismic sensors and a seismic source. The inline distance between the vessel and one or more other vessels is adjusted according to a predefined function, where the seismic vessels travel along offset seismic acquisition lines, by increasing and reducing the in-line distance during the acquisition of the seismic data.

Seismic data acquisition with varying distance between seismic vessels

The present invention generally relates to marine seismic prospecting, and in particular to seismic prospecting using multiple vessels. During acquisition of seismic data, a distance between a first seismic vessel and a second seismic vessel may be adjusted according to a predefined function such that data is collected at a variety of offsets.

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Sunderland, United Kingdom

Paul Brettwood