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Fiche 1,  Justifications,  Anglais

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Three-dimensional(3D) seismic surveys utilise 2D grids of seismic sources and receivers deployed on the ground surface. The seismic response of the ground is recorded as a time series corresponding to each source-receiver pair, and the wave propagation time becomes the third dimension of the data set.... If a 3D seismic survey is repeated at several time intervals, this historical time(as opposed to the wave propagation time) becomes a fourth dimension, hence the name 4D or time-lapse seismic. The 4D approach allows a detailed description of the evolution of the reservoir, but the overall cost of the survey escalates rapidly by repeating conventional 3D surveys.  4, fiche 1, Anglais, - time%2Dlapse%20seismic

Record number: 1, Textual support number: 1 PHR

Time-lapse seismic data, experiment, measurement, modeling, response, result, survey, test.  5, fiche 1, Anglais, - time%2Dlapse%20seismic

Fiche 1,  Justifications,  Français

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Afin d'obtenir une image plus précise et plus fiable du sous-sol, on emploie la technique de la sismique 3D [...] Elle permet même souvent de repérer directement les hydrocarbures dans les couches géologiques. Les récepteurs sont placés en nappes afin de construire une image du sous-sol en volume (en trois dimensions). La technique de la sismique 4D va plus loin encore, en faisant intervenir la quatrième dimension : le temps. Sur un gisement en production, on effectue plusieurs enregistrements successifs de sismique 3D, à intervalles de temps réguliers. La comparaison des enregistrements permet ensuite de suivre l'évolution du gisement pendant sa production.  4, fiche 1, Français, - sismique%204D

Fiche 1,  Justifications,  Espagnol

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[...] los grupos de producción pueden utilizar levantamientos sísmicos aplicando la técnica de lapsos de tiempo - sísmica 4D - a fin de rastrear cambios de saturación y de presión, para un mejor emplazamiento de los pozos de relleno [...]  2, fiche 1, Espagnol, - s%C3%ADsmica%204D

Fiche 2,  Justifications,  Anglais

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A modeling process by which variation in a time series are assumed to be explained wholly by the historical trends of the data itself. In essence, the ARIMA modeling process consists of the autoregressive and moving average processes of the Auto-Regressive Moving Average(ARMA) Model process on data that have been Differenced to render them Stationary. The process uses variations of differencing and transformations to describe historical patterns in the data. Like the simpler ARMA model, forecasts made by an ARIMA modeling process consist of only a mathematical process of projecting inherent characteristics of trend, cycles, and seasonality into the future and incorporate no economic relatinships. Consequently, such models are not appropriate for impact analysis or for incorporating random "shocks", but may prove an effective estimation process when the trends in the historical data are relatively stable and well-behaved.  1, fiche 2, Anglais, - auto%2Dregressive%20integrated%20moving%20average%20process

Record number: 2, Textual support number: 1 OBS

The X-11 ARIMA process is used to detect and remove the seasonality from the original data.  4, fiche 2, Anglais, - auto%2Dregressive%20integrated%20moving%20average%20process

Fiche 2,  Justifications,  Français

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Dans divers travaux d'économétrie on fait [...] usage de processus mixtes, dits «autorégressifs de moyennes mobiles» [...].  2, fiche 2, Français, - processus%20autor%C3%A9gressif%20de%20moyennes%20mobiles%20int%C3%A9gr%C3%A9es

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

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The cansim time series module contains current and historical information. These series cover a broad range of inter-related socio-economic fields from data in canadian manufacturing and external trade to statistics on the Consumer Price Index and the Gross National Product.  1, fiche 3, Anglais, - time%20series%20module

Record number: 3, Textual support number: 1 OBS

Time series. The discrete or continuous sequence of quantitative data assigned to specific moments in time, usually studied with respect to their distribution in time.  2, fiche 3, Anglais, - time%20series%20module

Fiche 3,  Justifications,  Français

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Le module CANSIM des séries chronologiques contient des renseignements à jour et historiques. Ces séries portent sur un vaste éventail de domaines socioéconomiques reliés, allant du secteur de la fabrication et du commerce extérieur aux statistiques sur l'indice des prix à la consommation et le produit national brut.  1, fiche 3, Français, - module%20des%20s%C3%A9ries%20chronologiques

Fiche 3,  Justifications,  Espagnol