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Learn Seismic Data Processing
Rating: 3.6 out of 5(20 ratings)
85 students

Learn Seismic Data Processing

Basic Data Processing
Created byMohamad Samir Al Nahhas
Last updated 3/2022
English
English [Auto],

What you'll learn

  • Students will learn about the Elastic Theory and wave propagation
  • Seismic Reflection Theory, sampling and Aliasing in time and space
  • The course covers the key theories to ensure optimum data quality
  • The participants will then learn the most important terms of seismic data processing techniques
  • The students will understand the Fourier Transform and the Time and frequency Domains
  • Participants will learn how to compute the static and the Dynamic corrections
  • The course will include F/K Filtering, Migration and Multiple attenuation

Course content

7 sections • 26 lectures • 4h 6m total length

  • Introduction Role of Geophysics in E&P2:45

    Discover how geophysics supports oil and gas exploration using seismic data, gravity, and geophysical tools. Learn the seismic reflection approach and the three stages: data acquisition, processing, and interpretation.

  • Seismic Method Stages Acquisition2:43

    Explore seismic method stages of acquisition, where energy reflects at interfaces with different velocity or density, enabling offshore and onshore surveys using hydrophones, geophones, air guns.

  • Seismic Method Stages Processing2:19

    Process seismic data at a processing center to improve signal-to-noise ratio and remove acquisition-related abnormalities, applying a sequence of multiplexing, amplitude recovery, trace editing, statics, and migration.

  • Seismic Method Stages Interpretation1:40

    Correlate horizons across lines using wind and seismic data, generate horizon maps with a workstation, convert time to depths with velocity maps, and interpret rock shapes to locate drilling targets.

  • Onshore Seismic Data Acquisition27:05

    Learn onshore seismic data acquisition, land geometries and shot–receiver layouts with overlapping subsurface coverage, and apply noise analysis, array design, and static corrections to improve data quality.

  • Offshore Seismic Data Acquisition6:46

    Learn offshore seismic data acquisition aboard a vessel deploying streamers and hydrophones, using air guns as sources, with depth-controlled active streamer sections and multi-line, multi-source configurations.

Requirements

  • Basic knowledge of the geophysical methods especially the reflection seismic method
  • It will be better if the participant have good idea about Seismic data Acquisition

Description

Seismic data is recorded in the field on magnetic tape. About three to six weeks later, the information is transmitted to the interpreter as a seismic section.

All of the intervening steps comprise the data processing phase of seismic exploration.

Processing seismic data consists of applying a sequence of computer programs, each designed to achieve one step along the path from field tape to record section. Programs are usually used in a processing sequence, and these are selected from a library of several hundred programs. Each company’s library is unique, although many programs will be almost identical to those of another company.

In each company’s library, there may be several programs designed to produce the same effect through different approaches. For example, one program may operate in the time domain while another works in the frequency domain, yet they may yield similar results.

The course also covers seismic waves propagation & seismic records data digitalization, sampling and how to avoid aliasing in the recorded data and during resampling in order to ensure optimum data quality. The mathematics of seismic data processing will be followed by the fundamentals of seismic data processing. An overview of the best practices and the most recent seismic 2D and 3D seismic processing sequences used onshore and offshore will be provided. The participants will then learn the theoretical biases of the most important terms of seismic processing: the Fourier transform, time and frequency domain, convolution, cross and auto-correlations. The participants will then learn how to build an optimum processing sequence, in order to obtain the best data quality using the latest techniques.


Who this course is for:

  • Knowledge of the geophysical methods, seismic data acquisition,
  • Then you will learn the main steps in seismic data processing with examples
  • You will understand all the necessary information to do successful Seismic Data Processing
  • You will be able to participate in processing 2D or 3D data in the processing centres

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