【摘要】 利用沉积学、层序地层学理论分析和研究沉积相特征,得出探区内发育的储层主要有冲积扇、河流、三角洲、浊积扇和滩坝五大沉积体系,提出了上第三系”水流控砂”、下第三系”坡槽控砂”的沉积模式,得到储层按构造带分布的规律.隐蔽性油气藏以”断导”模式成藏,与储层发育相匹配形成四个大的隐蔽性油气藏群.研究地震储层描述方法的适应性和敏感性,利用正、反演类比方法研究地震反射特征,实现了地震相和沉积相的转换.剖析典型的油气藏类型,分析成功的经验,总结失败的教训,得到了针对河流、冲积扇、三角洲、滩坝和浊积扇的描述流程和配套技术系列.更多还原

【Abstract】 Sedimentary facies are studied by sedimentary theory and principles of sequence stratigraphy.There are five main sedimentary styles as alluvial fan,fluvial,delta, turbidite fan and beach bar sedimentary system in Jiyang Depression.Two facies models are found that stream and slope-vale control sand distributing in tertiary, and the sand distribute along structure zones.Hidden hydrocarbon reservoir are formed by fault-penetrmive terrane models, and form four main groups distributing as sand distributing. This paper Analyze the adaptability and sensitivity of seismic describing reservoir methods. Seismic facies are transformed into sedimentary facies by analyzing seism characteristics of forward and inverse models. Classical hidden hydrocarbon reservoirs are anatomized. We gain the reason why the prospecting of reservoirs are successful or failing, and then gain describing flow and combined describing techniques that aim at alluvial fan, fluvial, delta,turbidite fan and beach bar sedimentary system.更多还原