I am responsible for quality controlling and processing grids of high-resolution 2D seismic data into final interpretable product offshore, often alone, so there can be a lot of responsibility and time pressure. The choice between digital and analog field recording is discussed in relation to the needs of the seismic process and the quality of the seismic data.Among the mathematical processes discussed are velocity filtering and a number of types of Wiener filtering, including horizontal stacking, deghosting, deconvolution, and multitrace digital filtering. "This outcome will drive a step-change in seismic data processing and is a key stepping-stone in the digital transformation of the global seismic industry. 1- Time Migration • Time migration is the repositioning of reflected seismic data to their true reflection points in space and time. Even when starting with the same raw data, the result of processing by one organization seems to be different from that of another organization. The step-by-step demo of the full reflection seismic data processing workflow using a complete real seismic data set places itself as a very useful feature of the book. SEISMIC 87 Data processing steps forward The marine seismic acquisition market may soon be hit by oil company exploration budget cuts, but the continuing demand for data processing may provide a modest lifeline to some companies. Available modules oe_M_4_p087_data processing 30/3/09 6:27 pm Page 87 . Poststack Processing Steps for Preconditioning Seismic Data Geophysical Corner Figure 2: An arbitrary line passing though the far-angle stacked volume that used the (a) conventional preconditioning, and (b) preconditioning with application of some post-stack processing steps. Seismic data are expected to be in SEG-Y format. WesternGeco velocity modelling. Ex: Kirchhoff Migration Migration 40. Seismic Data Processing uses both the concepts of geometrical optics and the powerful techniques of Fourier Analysis. Only minimal processing would be required if we had a perfect acquisition system. SPS data. Seismic data processing can be characterized by the application of a sequence of processes, where for each of these processes there are a number of different approaches. Author: Xiaotao Yang (stcyang@gmail.com)Introduction. Handle high density, wide-azimuth data with ease. Having this very ergonomic and reliable package of seismic processing tools available is quite a technical plus point, either at fieldwork with QC–tools or back at the office with the full variety of processing steps. CGG is independently recognized as the leader in seismic imaging and advanced processing services, thanks to our experience, expertise and Geovation. Title: Seismic Data Processing 1 Seismic Data Processing Examples in the High Plains Oil Plays ECHO processing makes a difference! “This outcome will drive a step-change in seismic data processing and is a key stepping-stone in the digital transformation of the global seismic industry. Read the full paper 'Automation of marine seismic data processing' An example from Malaysia demonstrates that a collectivized digital experience database can be mined to fully parameterize several consecutive processing steps without human intervention (refer to the figure below). Required S file headers: sline, sid, x, y, z. The recording of seismic events is a complex process. Prestack seismic data denoising is an important step in seismic processing due to the development of prestack time migration. There is a fundamental problem with seismic data processing. Processing consists of the application of a series of computer routines to the acquired data guided by the hand of the processing geophysicist. Clients can experience Geovation directly through licensed use of the software or through dedicated processing facilities and technology centers, for which CGG is the partner of choice. Creativity combined with a need to generate cash flow inspired the data pool concept. The example shown in Figure I-12 demonstrates this problem. GCPoststack Processing Steps for Preconditioning Seismic Data* Ritesh Kumar Sharma1 and Satinder Chopra1. Several steps are required before the waveform data is converted into an event catalogue for further visualisation and interpretation. The name of a seismic dataset should consist of 2 parts –the identifier of initial data and the processing stage of the data. Until the migration step, seismic data are merely recorded traces of echoes, waves that have been reflected from anomalies in the subsurface. This course provides a comprehensive overview of the steps that are commonly applied in seismic data processing and discusses for each step the alternative implementations together with their inherent assumptions and … Apply the latest compute intensive imaging algorithms in the most efficient manner. SPS data are expected as R, S, X text files in csv (comma-separated-values) format with required and optional headers: Required R file headers: rline, rid, x, y, z. This page is aimed at anyone interested in seismic data processing. Managing Editor of AAPG Explorer is … Seismic data. Seismic Data Processing GEOS 469/569 – Spring 2006 Assumes knowledge of basic seismic reflection techniques and knowledge of trigonometry and calculus We will use complex numbers and some of the ideas of complex analysis as tools, but will develop these as we go. Use the latest seismic processing software to prepare the data for interpretation. computer performance and memory, but … ECHO was founded on August 1st, 1986 by a group of seismic processors for the purpose of doing processing work. By reducing both timelines and the CapEx burden on seismic data processors, the industry will be able to scale on demand as we acquire ever-increasing seismic trace densities.” – Allan Châtenay, President, Explor . The purpose of seismic processing is to manipulate the acquired data into an image that can be used to infer the sub-surface structure. 2- Depth Migration. "But I challenged the team to reduce it to 12 days," he said. The DELFI cognitive E&P environment is a multidimensional environment that unites planning and operations. The same data have been processed by six different contractors. 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