【摘要】 本文应用沉积学原理,层序地层学等原理和方法,依据测井,录井等资料,进行了各级层序单元的识别与划分,建立了方4井白垩-古近系各层序界面的识别标志,井震结合,进行层序地层划分对比,将白垩-古近系划分为十个三级层序,并总结了各层序地层单元特征。更多还原

【Abstract】 By using theory of sedimentology and sequence stratigraphy,Based on logging and logging data,established high precision sequence formation frame.We established identification sign of every sequence interface of Cretaceous and Paleogene on the basis of sequence stratigraphy,at the same time we made dividing and comparing for the sequence formation combining well data and seismic data and certification each other.We divided Cretaceous and Paleogene into ten tertiary sequences,then concluded unit feature of every sequence formation.更多还原