摘要
为预测东海陆架盆地丽水凹陷油气富集区带,在不整合特征研究和方法适用性分析基础上,利用泥岩声波时差测井资料,定量恢复了丽水凹陷古新统明月峰组的地层剥蚀厚度。明月峰组残留地层和上覆地层的压实趋势关系表明声波时差法在研究区具有良好的适用性,古新世~早始新世时期剥蚀作用强烈,形成不整合面,其剥蚀厚度整体呈现东西斜坡大盆地中心小的趋势,中央反转构造带在剥蚀量上有明显体现,灵峰凸起陡坡带最大可达800~1000m。
To predict the East China Sea Shelf Basin Lishui Sag oil-rich zone,this paper quantitatively restores the eroded strata thickness of Mingyuefeng group,using mudstone sonic log dada.The strata compaction trend of Mingyuefeng residue and overlying strata show that interval transit time method has good applicability in the study area.Strong denudation formed T40 unconformity during Paleocene-early Eocene period.The results show that the erosion thickness of Paleocene strata reflects an overall trend of large in two sides and small in the middle,and the central inversion structure is in a high value,up to 800-1000 min Lingfeng uplift.
出处
《内蒙古石油化工》
CAS
2015年第8期34-36,共3页
Inner Mongolia Petrochemical Industry
基金
中央高校基本科研业务费专项(201413005)资助
关键词
丽水凹陷
声波时差
剥蚀量
Lishui Sag
interval transit time
Erosion thickness
