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本文共分两部分。第一部分主要从四川盆地油气藏的裂缝性及其分布的分散性两个基本特点,结合钻探实践,论证了四川盆地潜伏构造在油气勘探开发中的重要地位,从而指出潜伏构造足四川盆地地震勘探十分重大的成果。第二部分从总结四川盆地区域构造的四大特点(四川盆地是压性构造盆地;构造线组系多;构造发展的旋回多;盆地基底性质及周边构造关系具有明显的分区性)入手,较详明地论述了这些特点对盆地内五种类型(复合型,断裂型,枢纽型,隆褶型和干扰型)潜伏构造的形成和分布的控制作用。在此基础上对全盆地潜伏构造进行了类型分区,借以指导对各区潜伏构造的进一步勘探。
This article is divided into two parts. The first part mainly discusses the basic status of fractures in the Sichuan Basin and the distribution of their distribution. Combined with the drilling practice, the author proves the important position of latent structures in the exploration and development of oil and gas in the Sichuan Basin. Very significant result. The second part summarizes the four characteristics of the regional structure in the Sichuan Basin (the Sichuan Basin is a pressure structure basin; the tectonic line is more; the tectonic development is more; the basal properties of the basin and the surrounding tectonics are obviously zoned) The controllability of these features to the formation and distribution of five types of complexes (complex type, fault type, hinge type, rumble type and interference type) in the basin is discussed in detail. On the basis of this, the types of sub-basins are subdivided into different types to guide the further exploration of the latent tectonics in each area.