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 distance between the monopole transmitter and the first receiver station is 9 ft. The transition between these diaagraphie geological formations are clearly marked at 1 m.

A collection of writing tools that cover the many facets of English and French grammar, style and usage. Initial download of the metrics may take a while. Geophysics Oil and Natural Gas Extraction.

The language you choose must correspond to the language of the term you have entered. The wave diagrzphie filters commonly used are apparent velocity filters. For this experiment, the monopole transmitter was activated with a low frequency pulse for the purpose of generating low frequency Stoneley waves. The receiver section contains eight dipole-monopole stations spanning 3.

The full waveforms taken at each receiver were recorded on magnetic tape. Acoustic data are sorted either in a common-shot gather or in a constant-offset gather. FAQ Frequently asked questions Display options. In which subject field? After processing, the acoustic data Fig.


On this section we can observe soniue correlation between the frequency daigraphie and lithology derived from an independent analysis. We describe different processing sequences applied to a set of field examples.

Translation of “diagraphie sonique” in English

In clean sandstone, the Stoneley wave have an apparent frequency of Hz; in shaly sandstone the frequency ranges from Hz to Hz. Current usage metrics About article metrics Return to article. The sonic tool used was a Schlumberger Dipole Imaging tool.

Change the order of display of the official languages of Canada English first French first Option to display the non-official languages Spanish or Portuguese Neither Spanish Portuguese Display definitions, contexts, etc. The figure shows, from right to left, the raw data Athe flattened raw data Bthe first eigensection obtained by matrix spectral filtering C and its associated residual eigensection D.

Figure 9 shows the energy log derived from the set of first eigenvalues associated with the first eigensections. Under these conditions, all the refracted arrivals and borehole modes can easily be filtered by a set of apparent velocity filters.

Each filter was applied in a time-window in order to select a specific wave. These sonic sections were time shifted to be directly comparable with the raw data, using the picked time of the direct wave arrival.

In sandstones, the interface modes have strong amplitudes and a low frequency content. The record resulting from this process is called “acoustic log. The source-receiver distance varied from 3.


The processing included spectrum equalization in the kHz frequency bandwidth Fig. The acoustic data must be recorded with well suited spatial and temporal sampling-rates to avoid spatial and temporal aliasings. The efficiency of an apparent velocity filter is enhanced by application of spectrum equalization.

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

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After filtering, the residual sonic section contains the noise and the other waves. Metrics Show article metrics. Language Portal of Canada Access a collection of Canadian resources on all aspects of English and French, including quizzes. La diagraphie sonique a maintenant de multiples applications pour: It was used to enhance the interface modes Fig. Writing tools A collection of writing tools that cover the many facets of English and French grammar, style and usage.

In the second step, a Siagraphie filter was applied to the constant-offset sonic-data gather, after elimination of interface modes. The source was fired at equal spacings of 6 inches throughout the open hole section. The vertical well was drilled to establish a vertical geologic cross-section of the quarry and to identify the acoustic impedance variation boundaries.