Multi-Layer Sparker

DEVELOPMENT

In 2015 Geo Marine would develop the Multi-Layer Sparkers (Flip-Flop and Tuned modes) and revolutionized the data quality of ultra high-resolution seismic acquisition. The technique was then adopted by the industry as the benchmark for data quality.

FLIP-FLOP

The Flip-Flop configuration consists of stacking two – or more – sources at different depths with each level firing alternatively. Typically, the top layer is dedicated to High Frequency pulse, whilst the bottom layer to the Low Frequency pulse. One dataset per source will then be recorded and successively processed and merged in order to produce a full spectrum profile.

TUNED

In the Tuned configuration the distance between layers follows the same fundamental Low frequency and High Frequency modes concept to which is added the design of an interference pattern, via trigger delay, that improves the wave shape and attenuates undesired bubble effects.

The two units shoot at almost the same time, with microseconds, sub-wavelet length, difference between them, which will generate a single source signature and one dataset only.