摘要
在对青东凹陷钻井、地震、测井等资料综合研究的基础上,运用地震地层学、沉积学和测井地质学原理,识别了古近系层序和地震相类型,并结合钻井资料及区域构造背景,经过地震解释,把地震相转化为沉积相。研究表明,古近系可划分为4个三级层序;根据地震波的振幅、频率、连续性及内部反射结构、外部几何形态,4个三级层序内可识别出5种类型地震相;研究区主要发育三角洲、扇三角洲、滑塌扇、湖泊等4种沉积相。勘探初期的沉积相研究对今后的勘探工作具有重要意义。
Based on the comprehensive research on drilling,seismic,logging data etc,the paleogene sequences and the types of seismic facies were recognized by using the theories of seismic stratigraphy,sedimentology and logging geology in combination with drilling data and the regional tectonic background,the seismic facies were transfered into sedimentary facies through seismic interpretation.Study shows that the paleogene strata can be divided into four third-order sequences and according to the amplitude,frequency,continuity,inner reflecting configuration and external geometric shape of the seismic wave,five types of seismic facies can be recognized in the four third-order sequences.The types of sedimentary facies in the study area are mainly delta,fan delta,slump fan and lacustrine facies.The research of sedimentary facies during the early exploration period is of important significance in the future exploration.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2009年第5期250-254,共5页
Journal of Oil and Gas Technology
关键词
青东凹陷
古近系
地震相
沉积相
Qingdong Depression
paleogene
seismic facies
sedimentary facies
