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缝合线作为一种常见的小型构造,对于流体矿产的运移及聚集能够起到重要作用。为深入研究缝合线的成因及其油气地质意义,对将前人对缝合线特征与分类进行分析归纳,总结出缝合线的结构及缝合膜的物质成分。分析缝合线的成因机理,主要包括:地震作用、地震传播方式的影响、构造运动、超压、压溶作用。指出缝合线在油气成藏中能够起到两方面的作用:一是有利于生烃和排烃,二是是作为油气运移通道,三是构成油气储集空间。
As a common small structure, sutures can play an important role in the migration and accumulation of fluid minerals. In order to deeply study the genesis of suture and the significance of its oil and gas geology, this paper analyzes and summarizes the characteristics and classification of suture before, and summarizes the structure of suture and the material composition of suture membrane. Analysis of the genesis mechanism of suture, including: the role of earthquakes, the impact of earthquakes, tectonic movement, overpressure, pressure dissolving effect. It is pointed out that the suture can play two roles in hydrocarbon accumulation: one is for hydrocarbon generation and expulsion, the other is for hydrocarbon migration and the other is for oil and gas reservoir space.