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通过对曾岔-长官庙地区长9油层组岩心观察、测井曲线形态及岩石学等特征分析,认为本区9长油层组为三角洲前缘亚相沉积,主要发育水下分流河道、河口坝、席状砂等微相,河道砂体主要呈北东-南西方向展布。通过对油气分布规律与沉积相展布特征的分析认为,河道微相为研究区下一步油气勘探开发重点区。
Based on the analysis of core observation, logging curve shape and petrology of Chang 9 reservoir in Zengcha-Changguanmiao area, it is considered that the 9 long oil reservoirs in this area are delta front subfacies, mainly developing underwater distributary channel and estuary dam , Sand-like sand and other microfacies, river sand bodies mainly in the north-east-southwest distribution. Based on the analysis of the distribution law of oil and gas and the distribution characteristics of sedimentary facies, the microfacies of river courses are the key areas for oil and gas exploration and development in the study area.