Sequence stratıgraphıc analysıs of the Galmaz field based on well loggıng data


 It is known that over 90% of oil, gas and condensate in Azerbaijan produced from Productive Series (PS) the Early Pliocene. In this respect, detailed study Pro- ductive deposits their evolution conditions has a special value. Currently most sedimentary basins world latest highly informative methods stratigraphic analysis are applied one these sequence-stratigraphy, which used study. The application concept sequence stratigraphy enables an in-depth area to be conducted geological point view. Despite fact search for oil Republic been going on many years, there limited understanding distribution elements associated with system within structure. This evidenced by small number scientific publications exist at moment. To more detail sedimentation process PS Pliocene Galmaz field genetically tied facies have outlined correlated framework chronostratigraphic boundaries. As targets we chosen stages Absheron, Akchagyl field. New data acquired well logging techniques were re-examined detail. analyze interpret , NeuralogTM PetrelTM software applied. From positions sequence-stratigraphy taking into account curve features (gamma ray log) predictions environment made. sequences tracts studied, periods defined. suggested apply surfaces tracing changes regression transgression surfaces. Clay sand fractions rocks evaluated further lithological analysis. On gamma-ray curves, intervals intensity values less than 3.5 mR/h considered as reservoir layers. At same time, normalized value αSP, calculated Spontaneous Polarization, was assumed greater 0.6. Based oil-field geophysical it established section developing various rates frequently changing energy mode. also made clear parasequences Absheron stage formed progradation mode detritus brought river flows. sediments play role regional major cap basin.