Study On Sedimentary Microfacies Of The Kongdian Sec Reservoir Group In Cangdong-the Nanpi Seg

Cangdong-Nanpi depression located south of Huanghua Depression, isKongdian as the main composite oil and gas source rock and reservoir areas. Earlybreaking of the Kongdian evolution of the Cenozoic basins of the HuanghuaDepression, through the Kongdian Cangdong-Nanpi depression sedimentary basindepositional system type and spatial distribution analysis, we have established thesedimentary filling of holes, Sec style. Production practices, Cangdong-Nanpidepression is low degree of exploration of the oil region, proven oil and gas resourcesis not high areas, but early research work there are imperfections and differences indepositional systems. There are imperfections and differences in terms of depositionalsystems.Commence this thesis topics based on the above objectives, select the DagangCangdong-Nanpi depression as the scope of the study, to the Paleogene KongdianKong, Sec2pay sets, the application of sedimentology and sequence stratigraphy,continental theoryfurther refined and systematic study of its deposition phase,sedimentary subfacies sedimentary micro equal characteristics combined with thechronostratigraphic framework, revealing the spatial distribution pattern of thedeposition system.Drilling cores, logging, seismic and indoor test data on the basis of the analysisphase flag, based on the characteristics of rock assemblages, sedimentary structures,profile structure, identify the delta, beach bar, turbidite fan, lakestype of depositionalsystem, and established various sedimentary facies typical phase sequence.Depositional system built based on sedimentology and contrast within theisochronous stratigraphic units. Single drilling in a wide range of efficient conversionof drilling and seismic profiles in the two-dimensional information, prepared on thebasis of the deposition system, the spatial layout of each sequence.On the basis of the above analysis, the relationship of the type of depositionalsystem of the clear edge of the basin, on the east and west steep slope type basin margin and the North-South gentle slope type basin margin sedimentary system offilling pattern analysis.