Sedimentary environment and its evolution, distribution of sedimentary facies and sand bodies are discussed on the base of the data of log, drilling and c, o isotope.

本文利用测井、钻井和C、O同位素等资料，研究了核二段各砂组沉积时期的沉积环境、相带分布、砂体展布以及沉积演化规律。

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Sedimentary facies study integrating drilling, log and seismic data and using sequence stratigraphy is a base of petroleum exploration.

综合钻井、测井和地震资料，用层序地层学方法进行沉积相研究是油气勘探的基础。

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