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Block and module for seismic sources and sensors

Image Number 10 for United States Patent #7020045.

The invention relates to a source block with a downhole seismic source for use in seismic acquisition during production, comprising: a device for locking the block in a first position spaced from the well casing, a device for releasing the locking device, a device for urging the source block against the casing.The source block is characterized by comprising, a fluid circuit for controlling the operation of the locking and releasing devices, this fluid circuit comprising a rupture disc.

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