Seismic data acquisition geometry

  • .
    1. D seismic, also called 'time-lapse' seismic, requires an initial/baseline seismic survey of a subsurface area with a subsequent 'monitor' survey of the same area, copying as precisely as possible the initial acquisition survey parameters and conditions

  • How do you calculate the fold of seismic acquisition?

    The fold of .

    1. D seismic data can be calculated by dividing the number of seismometer groups by twice the number of group intervals between shotpoints

  • How is 4D seismic data acquired?

    .

    1. D seismic, also called 'time-lapse' seismic, requires an initial/baseline seismic survey of a subsurface area with a subsequent 'monitor' survey of the same area, copying as precisely as possible the initial acquisition survey parameters and conditions

  • What is seismic data based on?

    Seismic images are produced by generating, recording, and analyzing sound waves that travel through the Earth (such waves are also called seismic waves)..

  • What is the concept of seismic data acquisition?

    Seismic acquisition requires the use of a seismic source at specified locations for a seismic survey, and the energy that travels within the subsurface as seismic waves generated by the source gets recorded at specified locations on the surface by what is known as receivers (geophones or hydrophones)..

A seismic acquisition geometry can be defined by three factors: the source and receiver station intervals, the source and receiver line intervals, and the inline and crossline offsets of the recording script (i.e., which receivers are actively recording for each source) (Fig.
A split spread seismic record is shown above. The seismic traces all belong to a single source and hence this is referred to as a “Common Source Gather”. The 

Introduction

Acquisition of seismic data is the first phase of the three main phases in the seismic industry, which are: 1.
Seismic Acquisition 2.
Seismic Processing 3.
Seismic Interpretation The basic principle of seismic data acquisition is that, man-made seismic waves are just sound waves (also called acoustic waves) with frequencies typically ranging from 5.

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Land Acquisition

Sources

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Marine Acquisition

Marine Acquisition is accomplished by using large vessels outfitted with sources and streamers that are towed behind the ship (Figure 7).
During marine acquisition, the vessels continuously sail from shot to shot, and no time is spent moving geophones as in land acquisition.
This makes marine acquisition generally faster and less expensive than lan.

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What is seismic analysis?

Analysis of recorded seismic signals to filter (reduce/eliminate) unwanted components (noise) and create an image of the subsurface to enable geological interpretation and eventually to obtain an estimate of the distribution of material properties in the subsurface (inversion).

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What is seismic data acquisition & processing?

Seismic data acquisition and processing aims mainly to obtain an image of the sedimentary basins in interior of the earth, using waves generated by “artificial” earthquakes.

MESA is a seismic survey design software currently owned by ION Geophysical.
The software provides set of tools for optimizing onshore, offshore and transition zone survey design and planning.
The software comes with three licenses namely, MESA field, MESA Professional and MESA Expert.

Study of sedimentary rock

Seismic stratigraphy is a method for studying sedimentary rock in the deep subsurface based on seismic data acquisition.

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