异常高压对储层物性的影响

Influence of abnormal high pressure on physical properties of reservoirs

异常高压作为一个封闭系统,它的主要作用在于影响烃源岩的成熟和储层的性能。探讨异常高压对储层物性的影响作用可以为油气勘探评价提供重要的决策依据。通过实验模拟和对典型超压盆地孔渗性与超压关系的研究,认为超压不仅有利于储层孔、渗性的保存,而且通过物理和生物化学两种作用机理改善了储层物性。

The main role of abnormal high pressure in a close system was the influence on the maturity of hydrocarbon source rocks and reservoir performance. It can provide important basis for decision-making in oil-gas exploration evaluation. Through simulating experiment and the study of the relationship between superpressure and porosity-permeability in classical superpressure basins, it is considered that superpressure played an important role in preservation and improvement for porosity-permeability of the reservoirs. There mainly exist physical and biochemical effects.