Hydrocarbon Accumulation Regularity Of Es 3 Member Of Shichang Sub-sag In Nanpu Sag

Es₃ Member of Shichang sub-sag in Nanpu sag reservoir-forming regularity research,the three sections of oil accumulation is further implement jidong oilfield reserves abundance,Are favorable for effective use of the economies of jidong oilfield.According to the structural characteristics,sedimentary characteristics and oil and water distribution and the relationship between the different accumulation elements,O n the basis of unit in oil and gas migration and accumulation,Analysis of hydrocarbon reservoir-forming regularity.Determine the main controlling factors of hydrocarbon reservoir-forming,set up the reservoir forming pattern to predict favorable target.First of all,use the three-dimensional earthquake,Pick up Shichang sub-sag area in the typical structural section,research the tectonic s tyle,nalysis of boundary faults form evolution history.Combining with seismic data and well data.By using with single well facies analysis,well facies analysis,seismic facies analysis,and Shichang sub-sag attribute depicting events depression plane distribution of sedimentary facies characteristics.Secondly,On the basis of the research on the structure and sedimentary.Combining with the analysis of test data and hydrocarbon reservoir-forming conditions in the studied area are studied:?1?The period of Es₃4+5 seismic facies show the strong vibration characteristics.Dark mudstone thickness,wide distribution is the main hydrocarbon source rocks in the study area.?2?In the study area are controlled by a single fault in the fault nose trap and arc fault block traps and controlled by multiple fault block trap,trap development and closely related to three boundary faults;?3?And es3 and es2 mudstone constitute the main cap rock,The set of cap size is big,wide distribution,and oil and gas good sea ling effect.?4?O il source faults and connected sand body of study area is divided into the main vertical migration channel and lateral migration pathway which is Shichang sub-sag,the pools are the main migration pathway of oil and gas.Finally,on the basis of the petroleum migration and accumulation unit,using fluid potential.Combining with the hydrocarbon source rock,oil and gas migration and trap analysis of reservoiring conditions:?1?Hydrocarbon source rock size control of oil and gas resource abundance;?2?O il and gas migration path control oil and gas distribution;?3?Trap control the hydrocarbon accumulation area effectively.Established the hydrocarbon accumulation model in the study area,Optimizing the favourable target and direct petroleum exploration...