论文部分内容阅读
在垂向压实和侧向压实的双重动力学机制叠加下,库车坳陷白垩系碎屑岩储层展现出的压实效应,无法用传统单一的垂向压实理论来解释。通过详实的成岩特征显微统计分析,梳理出了垂向(埋深)压实和侧向(构造)压实分别对于研究层段的压实效应。研究层段的压实效应主要由垂向压实造成,侧向压实造成的压实效应相对较弱;侧向压实减孔量占总压实减孔量的比例并不与构造应力本身的大小呈明显的正比关系,侧向构造应力施压的时间与储层垂向埋藏压实程度之间的时间配置关系、构造挤压应力的大小等因素严重制约着构造应力对于储层的侧向压实效应。
Under the superposition of dual dynamic mechanisms of vertical compaction and lateral compaction, the compaction effect exhibited by Cretaceous clastic reservoirs in the Kuqa Depression can not be explained by the conventional single vertical compaction theory. Through detailed microscopic statistical analysis of diagenetic characteristics, the compaction effects of vertical (buried depth) compaction and lateral (structural) compaction on the study interval are summarized. The compaction effect of the study interval is mainly caused by vertical compaction, and the compaction effect caused by lateral compaction is relatively weak. The ratio of lateral compaction and void reduction to total compaction and void reduction is not related to the tectonic stress The relationship between the time of lateral tectonic stress and the degree of vertical buried compaction of the reservoir and the size of tectonic compressive stress seriously constrain the tectonic stress to the side of the reservoir Compaction effect.