论文部分内容阅读
成藏动力系统可以按封存仓或排液组合来划分。渤海湾盆地内按排液组合可分为6个成藏动力系统,但在各个凹陷分布不一;莺歌海盆地内按封存仓可分成3个成藏动力系统。按不同原则对成藏动力系统有不同的分类方案:据流体压力状态可分为常压型、超压型和低压型;据油源条件可分为它源型、自源型和混源型;据封闭条件可分为开放型、封闭型和半封闭型。每个成藏动力系统自成统一的压力系统,成为相对独立的油气运移聚集单元,油气以在本系统内运移聚集为主,沿大断裂和流体底辟周期流动是油气跨系统运移的基本模式,因此,与之伴生的构造带有利于形成多套成藏动力系统含油的复式油气聚集带。
Accumulation power system can be sealed warehouse or drainage combination to divide. According to the drainage combination, the Bohai Bay Basin can be divided into six reservoir-forming dynamical systems, but they are distributed differently in each depression. The Yinggehai basin can be divided into three reservoir-forming dynamic systems according to the sealed reservoir. According to different principles, there are different classification schemes for accumulating dynamical systems: according to the state of fluid pressure, it can be divided into atmospheric type, overpressure type and low pressure type; it can be divided into its source type, self-source type and mixed source type ; According to the closure conditions can be divided into open, closed and semi-closed type. Each reservoir-forming dynamical system self-relies on a unified pressure system and becomes a relatively independent unit for migration and accumulation of oil and gas. Hydrocarbons mainly migrate and accumulate in this system, and the periodic flow along large faults and fluid diapirs is the migration of oil and gas across the system Therefore, the structure associated with it is conducive to the formation of multiple sets of oil accumulation in the oil-bearing oil and gas accumulation zone.