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Mud volcano DW Niger delta annotated Interpretation

VSA Author: Rob Butler
Date Created: 2020-01-20

This annotated version highlights various amplitude anomalies likely to represent hydrocarbons. They include a bottom simulating reflector representing gas hydrates and some bright spots deeper in the structure that could be DHIs - migrated gas. The footwall (R side) of the structure is uninterpreted. Note the thick growth sequence charting amplification of the anticline (in semi-transparent yellow). The disturbed reflector sets are probable remobilised strata ("mass transport complexes") - which are probably shed from an adjacent anticline out of picture (certainly the shallowest example appears not to have a detachment scar not "erosive" base in this line of section.... The forelimb of the fold is characteristically poorly imaged - and contains various seismic migration artifacts.





Details:

  • Interpretation Administrator:
    • Rob Butler
  • VSA Author:
    • Rob Butler

Geological Interpretation

Deformation Structures
Antiform, Ramps, Mud

Tectonostratigraphic Style
Growth Strata

Seismic Stratigraphy
Onlap

Diagenesis / Fluids
DHIs, Gas hydrates

Geological Context

Plate Settings and Margins
Passive

Tectonics
DW fold-thrust belts

Basin Setting
Passive Margin

Geographic Context

Physical Geography
Deltas

Political Geography
Nigeria, Federal Republic of

Geophysics

Survey Information
Marine, Zero Phase, 3D, Migrated

Data Presentation
Vertical Scale - Time, Amplitude

Image Type
Vertical Profile