基准面振荡次旋回的识别及其科学意义  

Recognition of base level subcycle and its scientific significance

作　　者：范廷恩 宋来明 胡光义 余连勇 

机构地区：[1]中海油研究总院,北京100027

出　　处：《地质学刊》2012年第4期384-390,共7页Journal of Geology

基　　金：国家重大专项"海上开发地震关键技术及应用研究"(2011ZX05024-001)课题资助成果

摘　　要：从理论上对基准面变化的过程重新进行了深入分析,认为目前广泛应用的基准面上升、下降行为不能完全刻画基准面的动态变化过程,以之为基础的基准面旋回理论在应用中也势必会出现诸多矛盾。合理描述基准面变化应该从基准面上升、基准面下降以及基准面处于平稳期3种状态出发,并认识到基准面变化存在基准面下降、基准面趋于上升、基准面上升、基准面趋于下降4种过程。认为在基准面趋于上升与趋于下降的过程中,相应形成基准面趋于上升振荡次旋回、趋于下降振荡次旋回,二者共同构成所述基准面振荡次旋回。在讨论基准面振荡次旋回理论意义及工业应用的基础上,对中国东部L油田基准面进行了识别,建立了油田等时地层格架。结果表明,基准面振荡次旋回的概念能够很好地应用于该油田,同时在一定程度上克服了旋回划分多解性的问题。The authors made a theoretic analysis of the variation course of the base level, thought that the behavior adopted at present on the base level rise and fall could not reflect the dynamic variation course of the base level, and the basic theory on base level cycle was often contradictory in application. Based on the rational description of base level variation, inclusive of three modes of the base level ： rise, fall and stable, the authors thought during the rising course and falling course of the base level, the corresponding rising and falling vibration subcycles for the base level would be formed. Based on the discussions of the theoretic significance of base level vibration subcycle and industrial application, the authors made recognition of the base level of Oil Field L located in eastern China, established its isochronous formation framework. It was concluded that the base level vibration subcycle theory was well proved in the case study.

关 键 词：基准面 基准面变化 基准面振荡次旋回 趋于上升次旋回 趋于下降次旋回 中国东部 

分 类 号：TE122[石油与天然气工程—油气勘探]