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劳山地区勘探程度较低,对长6沉积体系、沉积相和储层的展布、油气富集规律等问题有待进一步的认识。通过岩心、测井曲线等资料,对研究区内岩性特征、测井曲线形态及沉积微相特征进行分析得出,劳山地区延长组长6油层组主要由三角洲沉积体系和湖泊沉积体系构成。进一步分为2种亚相和4种微相。
The low exploration level in Laoshan area needs further understanding of the issues such as the deposition of Chang 6 sedimentary system, sedimentary facies and reservoirs and the law of hydrocarbon accumulation. Based on the data of cores and well logs, the lithologic characteristics, the shape of well logs and the characteristics of sedimentary microfacies in the study area are analyzed. It is concluded that the Chang 6 oil layer of Yanchang Formation in Laoshan area is mainly composed of delta sedimentary system and lacustrine sedimentary system . Further divided into two kinds of subfacies and four kinds of micro-phase.