Joint reports


Regional Tectonic Features of the Middle Kura Depression


  • The executive companies: GIA / First Exchange Corporation
  • The year of publication: 2000
  • Code: FEC 3136
  • Volumes: total 2
    volumes with appendixes in same amount: 2



EXECUTIVE SUMMARY


Middle Kura Regional Tectonic Study, Vol.1 (Geophysical Fields and Paramaters),
Vol.2 (Geological Interpretations)


Productive Series (Middle Pliocene) widely developed in offshore Azerbaijan and adjacent onshore parts is the main petroleum-bearing suite in the region.


As to older deposits, they are prospective in the Yevlakh-Agjabedi trough. Ecomonical oil-gas content in the area has been proved already. Oil pools in the deposits of wide stratigraphic range (Akchagylian, Sarmatian, Chokrakian, Maikopian, Eocenian, and Upper Cretaceous) have been developed for an extensive period.


The region is characterized by the complicated tectonic structure, presence of some structural levels, unconformable structural layout, presence of hiatuses in sedimentation, intense dislocation of the deposits, occurrence of magmatic volcanism in the past and so on. All these created specific settings for petroleum formation and accumulation processes, development of various type traps for oil and gas including those having reservoir confined to eroded surface of effusive rocks.


In connection with the above stated, effectiveness of exploration works in the area is not sufficiently high.


To date over 60 structures were discovered within the Yevlakh-Agjabedi trough, for only 15 structures either economical oil and gas content was proved or economical oil inflow discovered.


One of the methods of raising effectiveness of petroleum exploration is a detailed study of peculiarities of regional structure of the Middle Kura depression based on the integrated reivew of all geophysical exploration methods and interpretation o their results with regard to drilling data.


Just to cover this problem this problem the Atlas is published. It includes two volumes. In the first volume, the following regional geophysical parameters are indicated:

  • Magnetic
  • Electric
  • Gravity
  • Seismic
  • Radioactivity
  • Thermal


At the same time this volume contains the study results of regional gas geochemical field of near-surface deposits.


The second volume
contains the results of geological interpretation of geophysical fields. These studies are reflected as a series of regional structural maps on the surface of individual stratigraphic units (Miocene, Maikop, Eocene, Cretaceous), regional geological-cross-sections, regional well log correlation, regional lithofacial maps, regional thickness maps of separate stratigraphic units.


All these graphic materials are accompanied by the explanatory text. Finally, conclusions reflecting the author’s position on prospective and future directions for the search of new economical hydrocarbon accumulations are presented.


Geophysical fields (gravitational, seismic, electromagnetic, thermal, radioactive) of the Middle Kura depression are available to illustrate the regional tectonic study.