地应力变化影响孔隙压力和油势，因而对石油运移和聚集有重要影响。
Change of ground stress influences pore pressure and oil potential, thus has a great influence upon oil migration accumulation.
强烈的构造应力不仅改变了储层的性质，而且还直接控制着油气的聚集和分布。
The strong tectonic stress not only changes the reservoir properties but also directly controls hydrocarbon accumulation and distribution.
构造应力对油气运移聚集的影响是油气运移聚集机理研究中的重要课题。
The influence of ground stress field on migration accumulation of oil and gas is an important issue in mechanism study of the migration accumulation.
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