CLARİFİCATİON OF STRUCTURAL AND TECTONİC FEATURES İN COMPLEX DEPOSİTS (ON THE EXAMPLE OF GURGAN-DENİZ FİELD)

The article is devoted to the clarification of structural and tectonic structure newly drilled wells in Gurgan offshore field, which has been under development for a long time.The Gurgan-Deniz located Caspian Sea, sufficient residual reserves. field was discovered 1947. In same year, well No. 7 south-western wing put into operation. depth sea between 0.5-8 meters. average 2.5 m. From material technical point view, mines are supplied by Pirallahi Island, connected it dams 1.7 km east. Island Baku rail highway. area protected from winds waves island west northwest. annual temperature +14 ºC, ranging +2 + 25.4ºC. summer, this price 30-35ºC. geological section studied following results have obtained. Surakhani, Sabunchu Balakhani strata participate upper part productive layer. Surakhani stratum consists clays fine-grained sands. thickness 310 alternating sands clays. 400 lithological clay total group 620 Post-Kirmaky Clay Suite composed clayey lithofacies. 127 Sand sandy lithofasis intermediate layers. 40 sediments Girmaki stratum, as other fields Absheron oil gas region, consist composition sandstone, thin sand clay. Oily sandstones predominate here. sandiness increases ceiling heel. layer divides 3 halves. formation 273 It established data six with small number north-western that high carbonate dense rocks. wing, PG oily 140 Qala opened numerous wing. clusters taken form lens-shaped field. field's reserves were first calculated approved 1949. According clarify its boundaries, 1951 Oil Expedition only recoverable recalculated 1974 State Reserve Commission former Soviet Union 1976. 1995, SeaOilGasProject Institute (Oil Gas Mining Geology Laboratory). When re-specifying on basis analysis processing collected course research, account: main objects GS, GaS. These turn divided several horizons. cut GStop GSbot parts. not oily. GS1, GS2 GS3 complex PG1, PG2 PG3 Gala supported logs 4-6 structurally anticline. reason complication presence thrust. addition, thrust direction There transverse fractures. New recent years. With these wells, redefined. Correlation schemes profiles participation new wells. Stratigraphic boundaries determined based correlation scheme. compared previous revealed there innovations. confirmed profiles. A longitudinal profile compiled. involved existence №3a fault proved. amplitude fracture 90-110 subthrust. Fracture given our study. fracture, two parts (subthrust above thrust), observed profile. 1000-1200 changes stratigraphic innovations achieved All obtained proved profiles, maps compiled Keywords: map, well, profile, scheme, subthrust, fault.