Research On Oil And Gas Reservoir Formation Law And Main Controlling Factors Of Putaohua Oil Bearing Layer In Talaha-Changjiaweizi

Four hydrocarbon zones regioning from east yo west are the west of Daqing Changyuan nose structure belt,Changjiweizi syncline,Longhupao nose structure and Talaha syncline,teraces-half syncline in Talaha-Changjiaweizi,which roughly spreading parallel to the NE direction.In the hydrocarbon zone are various types of reservoirs.The major construction of Talaha-Changjiaweizi area is tectonic subsidence.The induction effect of hydrocarbon accumulation is Structure.Based on the region data,the article analyses the single phase index including coring well lithology,paleontological fossil and logging curve(colour,structure,tectonism,lithology,cyclicity,component,authigenic mineral,special containing and logging curve),so as to determine the sedimentary facies,subfacies and micro-facies types of the research area target intervals.Analysing the sedimentary characteristics and setting up corresponding identification mark.Putaohua oil reservoir can be divided into conventional reservoirs and unconventional reservoirs.This paper through studying the controlling factors of reservoir forming,including source rock development,structural feature,sedimentary micro facies model and reservoir physical property,will get a conclusion about reservoir distribution in this area.