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传统石油成藏理论是建立在中高渗透储层的基础上,其中的流体属于达西流体,油气主要分布于构造较高的部位。但是在低-超低渗透储层之中流体的渗流是非达西渗流,传统的石油成藏理论不适用于对此种类型的分析。石油在储层中的运移方式主要是非达西渗流,由于运移速度较慢进而产生滞留效应导致石油大量聚集于构造较低的部位,长此以往最终形成连续油藏。这种类型的油藏具有背斜区圈闭含有油气、斜坡区呈现油水倒置的现象。向斜成藏理论对传统石油成藏理论起到了重要的补充作用,拓宽了油气的勘探领域,由传统构造较高的部位逐渐转向构造的低部位,进而在一定程度上增加了石油的储量,对未来石油的勘探开发具有一定的借鉴意义。
The traditional theory of petroleum accumulation is based on medium-high permeability reservoirs, in which the fluid belongs to Darcy fluid, and the hydrocarbons mainly distribute in the high-tectonic parts. However, fluid seepage in low-ultra-low permeability reservoirs is non-Darcy seepage. The traditional petroleum accumulation theory is not suitable for this type of analysis. The migration of oil in reservoirs is mainly non-Darcy seepage. Due to the slow migration and the retention effect, petroleum accumulates in the lower parts of the structure and forms a continuous reservoir over time. This type of reservoir has anticlines and traps that contain oil and gas, and slopes show inversion of oil and water. The theory of syncline accumulation has played an important complementary role to the traditional theory of petroleum accumulation and broadened the field of oil and gas exploration. It gradually shifted from the higher part of the traditional structure to the lower part of the structure, thereby increasing the reserves of oil to a certain extent, It has some reference to the exploration and development of petroleum in the future.