Published July 2010

Specific development and oil-gas saturation Apsheron archipelago local structure

N.R. Narimanov

S.M. Rzayeva

In the article are reviewed the time of development, structural-tectonic development features, oil and gas saturation and oil and gas bearing perspectives of such structures as Apsheron Kupesi, Arzu Chilov, Palchig Pilpilasy, Chirag and Garabagh and on the basis of their development history comparison with major hydrocarbon migration phases are being forecasted oil and gas saturation and perspective features. Also has been determined the consedimental character of upheaval development as a structure of force laid not later than end Miocene. It was also fixed that they developed before Quartered period with different speed and intervals of geological time, therefore less temporary than the sedimentation speed. In Quarter period took place sharp jump in their development, their structure (except Chirag structure and buried structures Arzu and Garabagh) which considerably exceed intensity of sedimentary of accumulation and caused their washing their composite parts to the different stratigraphic depths. In upheavals boarders exposed this process took place partial or full destruction, especially in the bottom section. Accordingly, such structures perspectives may be connected with lower part deposits of productive series and interlaying it complex deposits. In order to reveal the major phases in oil and gas formation in arch sedimentary profile by each paleoprofile have been identified the position of boundery paleogeoitsotherms. As a result has been determined polychamber character of reviewed arch which causes the overlap of major previous migration phases with subsequent In boards structures which subjected that process, became particularly or full destroyed hydrocarbon accumulations especially on bottom section. That of these prospectivesuch kind of structure may be linked with top section and spread of its complex deposit. In period of excellent of fold spread of growth under the temporary sedimentation may be formed interformed stratigraphic unconformity in composite fold parties, can indicate so as screen us also outside reservoir hydrocarbon migration. For hydrocarbon migration of principal stage is definition, with coincided with general phase of oil and gas formation in Pirallahy-Kelkor trough from principal of geology survey of profile which gets across strike tough were composited paleoprofile for addition for end of Yura, early Creataceos, Miocene and Pliocene. Each of them were determined position boardes paleogasoizoterm with purpose to exposing basically phase oil and gas formation in sedimentation of open-cut trough which is showed intervals of geology time to end. As a result was fixed also the polycentre nature of considerable trough which assisted in overlap before principal stages of mentioned migration causes conditions fact is stable oil and gas saturation of local structures. Therefore, their much more parts must be prospective for oil and gas.