We make the subsurface maps and models from smooth interpolation of petrophysical data measured at well locations. A set of numerous closely-spaced seismic lines that provide a high spatially sampled measure of subsurface reflectivity. 3C-2, 3). Paleogeographic map of northwestern Great Bahama Bank in the middle Tertiary. Seismic data is a dominant source of information for the sub-surface and it is widely used to great effect in the hydrocarbon industry. The acoustic impedance series is computed by multiplication of the calibrated density log and the velocity log derived from the calibrated sonic log. Schematic NNE-SSW cross section A-A’ displaying the major structural (F1, F2, F3) and stratigraphic elements of southern Great Bahama Bank. However, if we seek a more penetrating explanation, we find practitioners get tongue-tied and talk around the subject in a variety of ways. Seismic data have the potential to provide the bridge between well logs and core analysis on the one hand, and tracer and well-test analysis on the other. Each trace represents one stack and the purple straight line shows the well location. Stochastic inversion methods often based on Gaussian priors can produce high frequencies in the desired model. Definition of seismic. The work of Eberli and Ginsburg (1987, 1989) showed that the modern configuration of Great Bahama Bank is best explained by repeated tectonic segmentation in the mid-Cretaceous and mid-Miocene, followed by coalescence of the banks during their growth (Figs. Seismic Interpretation is the understanding of the subsurface geological formations from seismic data which is collected during the extraction process. Seismic data acquisition is the process of gathering information about the composition of the earth below the surface. The present platform is the result of the coalescence of numerous smaller platforms (Figs. Seismic data contain a great deal of stratigraphic information. The estimation of wavelets at the well location is derived by matching the reflectivity at the well with seismic data at the well location. The drilling team can also use the seismic data to interpret the structural models beneath the earth's surface. There have been three main explanations of this geometry. 5.2B). Consistency of the acquisition and processing of 4D seismic is a challenge. Here, we compile all geologic slip rates that are reportedly used in U.S. National Seismic Hazard Map (NSHM) releases from 1996, 2002, 2007, 2008, and 2014. Definition - What does Seismic Interpretation mean? Seismic data have the potential to provide the bridge between well logs and core analysis on the one hand, and tracer and well-test analysis on the other. A new stochastic inversion algorithm method has been developed by Srivastava and Sen (2010) where fractal-based models, constructed from statistical properties of well logs, are used to generate a priori models. The analysis of 3D seismic data can provide information on the geometry of the reservoir, calibrate the rock properties, and flow surveillance. Lithologies are based on seismic facies interpretation (Masaferro and Eberli, 1994) and limited core data (Walles, 1993). On that definition we all are agreed. How can you stand behind your projects and investments if you’re not certain … Today, modern seismic data recording systems perform demultiplexing before storing the data onto the disk or tape drives, and therefore, depending on the specifications of the recording unit, demultiplexing may not be required during data processing. One approach to obtain a high-resolution 3D description of a reservoir is to use geostatistical interpolation, extrapolation, or simulation (Hass and Dubrule, 1994) using available well-log data at a few sparse locations. The resulting synthetic traces are then compared with the seismic traces at the well locations. A key input for probabilistic seismic hazard analysis (PSHA) is geologic slip rate data. This results in a data volume consisting of the first sample of first channel, first sample of second channel, first sample of third channel, etc. The initial analysis and interpretation of these data was performed by … rifting (F1) followed by development of a Cretaceous carbonate platform. 3 : having a strong or widespread impact : earthshaking seismic social changes. 2-D reflection seismic data are most important in the earlier … Sanjeev Rajput, Naresh Kumar Thakur, in Geological Controls for Gas Hydrate Formations and Unconventionals, 2016. 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