Journal Article

Refinement of the geological structure and petroleum potential Garadagh area

A.M.Suleymanov, I.A.Jafarov, A.M.Salmanov

2011

Overview

The article is devoted to improving the representation of the geological structure of Garadagh area on V, VIIa, VIII horizons, Underkirmaky suite Productive strata and II horizon of Miocene deposits. This is achieved using seismic data from 2D and 3D surveys, exploratory drilling and analysis of test results of exploratory and development wells identifying the key areas of exploration. Some additional faults (with throw of 100-150 m) were established on the northern flank and in the eastern part of south wing on the structural maps of these horizons, along with faults defined by 3D seismic surveys. The central tectonic block of the south wing is lowered stepwise in relation to periclinal parts of the folds. Given that the pools of oil and condensate on the southern flank are shielded by axial and diagonal faults, the most wide area of development are pools of VII and VIIa horizons, and the lowest V horizon Productive strata. In the western part of the southern wing the reservoir properties of VIII, VII and VIIa horizons are poorer. Here, small accumulations of oil and condensate, along with faults with southeastern direction are screened by the faults with northeastern directions. VIII, VIIa and VII horizons are distinguished only in the eastern part of the north wing and in central and western parts of this wing these horizons wedge and shale out. In the western part of the north wing, the number and thickness of the sandy horizons of Diatom deposits increases towards the Chuvaldag trough on the north, but in the eastern part of the north wing in periclinal parts of the North Garadagh uplift these horizons shale and wedge out. Sandy horizons of the Sarmatian stage, Chokrakian, Konkian and Karaganian horizons on the north wing are promising targets for prospects for new oil pools. VIII, VIIa and VII horizons of Productive strata within the southern wing and in the eastern periclinal parts of the northern wing are the subject of explaration to find new pools and delineate existing discoved oil pools.

• Publisher: \"OilGasScientificResearchProject\" Institute of State Oil Company of Azerbaijan Republic (SOCAR)
• Subject: Condensates / Exploratory drilling / Fault detection / Fault lines / Faults / Geological structures / Geology / Miocene / Seismic surveys / Shales / Strata / Tectonics