There exist capillary seals and abnormal fluid pressure seals in the caprock.
盖层存在毛细管封闭、异常孔隙流体压力封闭两种封闭类型。
Pressure seals are the necessary condition of maintaining abnormal fluid pressure.
压力封闭层是维持异常压力存在的必要条件。
Many new ideas and concepts were proposed as a consequence of development in the abnormal fluid pressure studies, which have been promoting the advance of modern petroleum geology.
在对异常压力的认识不断深化的过程中，凝结出许多新的概念和思想，为现代石油地质学理论注入了新的内容。
Based on mud stone sonic log and measured fluid pressure, the paper analyzes the distribution of abnormal pressure in the Chexi sag, as well as its influence on petroleum migration and accumulation.
本文综合应用试油实测压力与泥岩声波时差资料计算分析了车西洼陷异常流体压力的分布特征及其与油气运移聚集的关系。
Fracture genesis mechanism in ZJD area is analyzed from the aspects of abnormal pore fluid pressure in formation, local structural deformation, and fracturing etc.
从地层的异常孔隙流体压力、局部构造形变、断裂作用等多方面分析了ZJD地区裂缝的成因机理。
Abnormal pore fluid pressure can enhance capillary sealing ability of caprock and the restraining hydrocarbon concentration sealing ability making faults form sealing.
异常孔隙流体压力可使盖层毛细管封闭能力增强，可使盖层形成抑制封闭作用，使断层具封闭性。
The caprock with big thickness owns strong capillary sealing ability, can form abnormal pore fluid pressure and the restraining hydrocarbon concentration sealing.
大厚度盖层毛细管封闭能力强，易形成异常孔隙流体压力和抑制浓度封闭作用。
An uncompacted belt can be described as an abnormal pore fluid pressure belt surrounded by "shell".
欠压实带可描述成被“壳”包围的一个异常孔隙流体压力带。
Many experiments show that: when a well produces oil from a reservoir, the porosity and permeability will decrease, as fluid pressure drops, especially for reservoirs with abnormal high pressure.
大量实验表明：当油藏生产原油时，随着地层中流体压力的降低，油层的孔隙度和渗透率下降，特别是在异常高压油藏中尤为显著。
Results The mechanism of abnormal pressure is related with disequilibrium compaction, increasing of fluid volume and decreasing of pores.
结果超压异常的形成与不均衡压实、孔隙流体增加、孔隙体积减小有关；
Abnormal formation fluid pressure often exists in oil-gas bearing basin.
地层流体压力异常是含油气盆地存在的一个普遍现象。
This paper presents this system, including studies of source rock analysis, conducting network, fluid potential, abnormal pressure and fluid tracer techniques.
论述了流体输导体系的研究流程，包括源岩分析、输导网络、流体势、异常压力以及流体示踪技术的研究等。
The driving force of primary migration is mainly abnormal high pressure and that of secondary migration is buoyance and fluid potential difference.
初次运移的动力主要是异常高压，二次运移的动力主要是浮力和流体势差。
The abnormal high-pressure of fluid controls the hydrocarbon-forming mechanism of source rocks and the migration and accumulation of oil and gas.
流体异常高压控制着烃源岩的成烃机理和油气运聚成藏。
The abnormal high-pressure of fluid controls the hydrocarbon-forming mechanism of source rocks and the migration and accumulation of oil and gas.
流体异常高压控制着烃源岩的成烃机理和油气运聚成藏。
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