Communications – electrical: acoustic wave systems and devices – Wellbore telemetering – Through drill string or casing
Patent
1996-12-20
2000-02-08
Oda, Christine K.
Communications, electrical: acoustic wave systems and devices
Wellbore telemetering
Through drill string or casing
367 40, G01V 128
Patent
active
06023444&
ABSTRACT:
The present invention relates to a method for the acquisition of signals during a well drilling operation, wherein the following stages are carried out: shakes are generated by means of a vibration source, the signals resulting from the shakes are detected by downhole and surface measuring means (23; 24) connected to a control unit (22), a code for synchronizing the signals acquired by the downhole (7) and surface means (23; 24) is emitted, the signals supplied by the downhole measuring means (7) are stored in a storage module (11), the signals contained in storage module (11) are collected at the surface, then processings are performed on the synchronized downhole and surface signals.
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patent: 4216536 (1980-08-01), More
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patent: 4926391 (1990-05-01), Rector et al.
patent: 4965774 (1990-10-01), Ng et al.
patent: 5758539 (1996-11-01), Naville et al.
Guesnon Jean
Mabile Claude
Meynier Patrick
Naville Charles
Institut Francais du Pe'trole
Oda Christine K.
Taylor Victor J.
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