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以往单纯以二级构造带为准则的区带划分评价方法已不适应当前隐蔽油气藏勘探的需求。基于构造控制沉积,构造与沉积联合控制成藏这一油气成藏基本原理,考虑隐蔽油气藏分布与沉积相带(岩相带)关系密切这一基本认识,确定出以二级构造带为基础的区带划分原则,即构造层原则,构造带原则和岩相带原则。结合济阳坳陷勘探实际,形成了区带综合评价的方法及技术流程,即整体研究,明确重点领域;成败分析,抓住关键问题;深入剖析,寻找有效对策;综合评价,形成最佳部署。在区带评价基础上,综合考虑各区带勘探阶段、勘探程度、认识程度、现实资源储备、主要勘探目的等,将济阳坳陷27个区带分为增储区带和突破区带2大类。
In the past, the method of zonal division based on the criterion of secondary tectonic belts was no longer suitable for the exploration of subtle reservoirs. Based on the basic principle of tectono-control sedimentation, tectono-sedimentation and combined control of hydrocarbon accumulation, taking into account the basic understanding that subtle reservoir distribution is closely related to sedimentary facies belt (lithofacies belt), it is determined that based on secondary structure zone Zoning principle, namely the tectonic principle, tectonic principle and lithofacies principle. Combined with the actual exploration in Jiyang Depression, the method and technological process of zone comprehensive evaluation are formed, that is, the overall research, clear key areas; success or failure analysis, grasp the key issues; in-depth analysis to find effective countermeasures; comprehensive evaluation to form the best deployment . Based on the belt evaluation, 27 zones in Jiyang Depression are divided into two zones, ie, reserve zone and breakthrough zone, taking into account the stages of exploration, the degree of exploration, the level of knowledge, the reserve of realistic resources and the purpose of major exploration. class.