DIAGRAPHIE SONIQUE PDF

Translations in context of “diagraphie sonique” in French-English from Reverso Context: L’invention concerne la diagraphie sonique en cours de forage. Le procédé consiste à mesurer, par un outil de diagraphie acoustique, des données acoustiques associées à une formation à l’intérieur d’un trou de forage, . Institut Français du Pétrole. Résumé. L’utilisation d’outils acoustiques à émetteurs -récepteurs multiples et enregistrement numérique permet de faire une.

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The full waveforms taken at each receiver were recorded on magnetic tape. This depth interval is associated with maximum shaliness.

diagraphie sonique – Translation into English – examples French | Reverso Context

Each wave contains information that can be disturbed by the presence of the other waves. Access a collection of Canadian resources on all aspects of English and French, including quizzes. First used for seismic-velocity information, it is now used chiefly for estimating porosity and lithology by the empirical Wyllie time-average equation. Services Same authors – Google Scholar. Enregistrement de la vitesse du son.

They are Stoneley waves. In shales, dipping sonic events appear and the residual waves and noise have much stronger amplitudes than they can have in sandstones 1 m depth interval. Sonic section E shows the direct Stoneley wave and its downgoing reflected waves mainly between 13 and 15 ms.

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The distance between the monopole ssonique and the first receiver station diagraphid 9 ft. Figs 10 to 13 show the sonic fullwaveform sections after constant offset gather processing. The receiver spacing was 1 cm. Glossaries and vocabularies Access Translation Bureau glossaries and vocabularies. Metrics Show article metrics. The use of information coming from vertical well VSP and log and synthetic modeling leads us to differentiate the reflections coming from discontinuities situated above A and below B the horizontal well.

The wave separation filters commonly used are apparent velocity filters.

DIAGRAPHIE SONIQUE (sonic logging): Topics by

Under these conditions, all the refracted arrivals and borehole modes can easily be filtered by a set xiagraphie apparent velocity filters. These sonic sections were time shifted to be directly comparable with the raw data, using the picked time of the direct wave arrival. The interpretation of these diffracted patterns shows that they were created by heterogeneities in the shale medium due to dolomitic intercalations situated about 4 m from the well. Glossaries and vocabularies Access Translation Bureau sonque and vocabularies.

Each filter was applied in a time-window in order to select a xonique wave. Initial download of the metrics may take a while. It was used to enhance the interface modes Fig.

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Translation of “diagraphie sonique” in English

These reflections come from reflectors situated in the oolithe blanche reservoir layer up to a distance of approximately 10 m. The value of the Stoneley frequency is directly related to shaliness.

In which subject field? Less usual filters are a Wiener filter and a spectral matrix filter. FAQ Frequently asked questions Display options. The current usage metrics is available hours after online publication and is updated daily on week days.

After filtering, the standard deviation is reduced whatever sonqiue depth, but mainly in the depth interval. This log correlates in depth with the frequency log and exhibits the interval depth where the reflected downgoing Stoneley waves are very strong. The results are shown in Figs. Language Portal of Canada Access a collection of Canadian resources on all aspects of English and French, including quizzes.

The vertical well was drilled to establish a vertical geologic cross-section of the quarry and to identify the acoustic impedance variation boundaries.

The distance between the monopole transmitter and the first receiver station was 3.