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 fule waveforms recorded by an array of receivers in a borehole sonic tool contain a set of waves that can be fruitfully used to obtain detailed information about the nearborehole lithology and structure. The sonic section shown in Figure 10 has been filtered in order to separate the direct Djagraphie wave and downgoing reflected Stoneley waves.

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

FAQ Frequently asked questions Display options. In the part of the well studied, the reservoir layers are clean sandstones or shaly sandstones overlain by impervious shale cap rock. In which subject field?

The results are shown in Figs. For each gather Fig. Geophysics Oil and Natural Gas Extraction. The current usage metrics is available hours after online publication and is updated daily on week days.


The borehole Stoneley waves are trapped modes that soinque be reflected when the direct borehole Stoneley wave encounters permeable fractures Hornby, Johnson, Winkler and Plumb, or a major change in lithology Hornby, Each filter was applied in a time-window in order to select a specific wave.

Translation of “diagraphie sonique” in English

Maximum shalk ness is observed in the depth interval. Language Portal of Canada Access a collection of Canadian resources on all aspects of English and French, including quizzes. Enregistrement de la vitesse du son. They are Stoneley waves. These sonic sections were time shifted to be directly comparable with the raw data, using diatraphie picked time of the direct wave arrival.

Each filter is designed to cancel a selected wave, characterized by its velocity. The recording length was 10 ms. The wave separation filters commonly used are apparent velocity filters.

Full waveform acoustic data were recorded using a specific acoustic tool assembly in order to obtain a common-shotpoint gather. Writing tools A collection of writing tools that cover the many facets of English and French grammar, style and usage.

The source-receiver distance varied from 3. A collection of writing tools that cover the many facets of English and French grammar, style and usage. The receiver spacing was 1 cm.

First used for seismic-velocity information, it is now used chiefly for estimating porosity and lithology by the empirical Wyllie time-average equation. Under these conditions, all the refracted arrivals and borehole modes can easily be filtered by a set of apparent velocity filters.


In the second step, a Wiener filter was applied to the constant-offset sonic-data gather, after elimination diagrahpie interface modes. In the configuration used, the distance between two receivers was 50 cm. The efficiency of the wave-separation algorithms depends on the choice of acoustic data gathers.

This usually permits a reasonably accurate measurement of the effective porosity of a given formation. The maximum standard deviation observed at m soniqke due to the interference of downgoing reflected waves and a direct Stoneley wave.

DIAGRAPHIE SONIQUE (sonic logging): Topics by

The source was fired at equal spacings of 5 cm throughout the open hole section of the well. The language you choose must correspond to the language of the term you have entered.

After filtering, the residual sonic section shows the refracted modes and the leaky modes Fig. The source was fired at equal spacings of 6 inches throughout the open hole section. The sonic data were recorded to study the reflected Stoneley waves.