Petrolic Geology Composite Study For Fangpu96-44 Well Area

With the deepgoing of the oil-gas exploitation and production, geologic condition of exploitation tuning object in maturation oilfield becomes more complicated and residual oil distribution becomes more disperse. According to need of productive-ability and capital-construction, we make a fine petrolic geology composite study for Fangpu 96-44 well area.According to petrolic geologic characteristics of Fangpu 96-44 well area,inferring the basic theory and viewpoints of sedimentology,petrology,geology of Geophysical Logging,structural geology and relying on 3D seismic data interpretation,high-resolution seismic data inversion,sedimentary facies analysis,comprehensive reservoir evaluation, we make a petrolic geology composite study for Fangpu 96-44 well area from six aspects:structure features,structure history,fine strata classification and correlation ,sedimentary facies characteristics,reservior inversion and physical property ,reservior comprehensive evaluation. There is an analysis that the whole structure characteristics in study area appear NNW ribboned ,low in middle part and high in around.Fangpu 96-44 well area mainly is controlled by north provenance (sometimes by west provenance),which exists underwater distributary channel,subwater distributary interchannel,mouth bar and sand sheet. Material source that came from north and northwest developed towards southeast in the whole zone in plan. Plan distribution of sand body is characterized by distributing continuously, interlaying and overlaying, different shape of small sand body and connectivity becoming poorer form north to south. Through integrating seismic attributes, contrasting sections, ichnographies and 3D solid images in reservoir inversion, shows that in portrait the top reservoir of Putaohua is better than the bottom reservoir of it, grew in belt in south and north strike direction, continuity is not well in east and west strike direction, which was affected by faults and sediment, in plan the reservoir is develop in several zones and become thin towards south in the direction of material source.Reservoir styles is mainly structural-lithologic hydrocarbon reservoir controlled by fault, subsidiarily lithologic hydrocarbon reservoir. Oil-water distributing is complicated,and there is no oil-water interface. Considering from structure,sediment,reservoir,inversion,oil-gas-water distributing rules,we forecast 4 faborable disgenetic zones.