“相控论”的内涵及其勘探意义

Connotation of "Facies Control Theory" and its significance for exploration

在回顾油气勘探理论发展历程的基础上,基于对各类油气藏形成和分布规律的分析,提出了以储集相为核心的“相控论”的观点和依据,指出在具备成藏基本地质条件的前提下,4类盆地(断陷、坳陷、前陆和克拉通)及其三大勘探领域(岩性-地层油气藏、前陆冲断带、叠合盆地中下组合)中各类油气藏的形成和分布普遍具有“相控”的规律性,对油气富集起控制作用的“储集相”主要包括沉积相和成岩相等,在勘探实践中应突出强调“定相”的勘探理念和思想。重点阐述了三大勘探领域油气成藏和分布的“相控”特征和规律。最后指出以储集相为核心的“相控论”的理论和实践意义。

The viewpoint and basis of ＂ Facies Control Theory＂ whose focus is reservoir facies are brought forward on the base of reviewing development course for exploration theory and analyzing the formation and occurrence rule of a variety of oil and gas reservoirs, and the formation and occurrence of every kind of oil and gas reservoirs with the regulation of ＂facies controlling＂ are indicated on the premise of possessing the basic geological conditions of reservoir-forming. ＂Reservoir facies＂ that control the petroleum reservoir-forming and accumulation mainly include, sedimentary facies, diagenetic facies and so on, and the＂ selecting depression and determining facies＂ are emphasized in exploration. The ＂ facies controlling＂ features and rules in the litho stratigraphyic traps, foreland basins, lower-middle combination of superimposed basin are mainly explained.