论文部分内容阅读
对酒东盆地营尔凹陷中生界碎屑岩储层的沉积和成岩特征的研究表明，该区沉积环境和成岩环境有一定的继承性，沉积环境在一定程度上控制成岩特征；成岩作用特征反映微咸水到半咸水的沉积环境。砂岩成岩作用明显受到泥岩成岩作用的影响，主要表现为泥岩中的粘土矿物的相互转化作用对砂岩胶结作用的控制及泥岩有机质的演化对砂岩孔隙发育的影响。粘土矿物组合及演化特征反映了该区中生界以碱性、偏碱性的成岩环境为主，局部出现酸性成岩环境。该区存在的两套烃源岩在成烃演化过程中形成的有机酸控制次生孔隙带的发育，在中生界形成两个次生孔隙发育带。
The study on the sedimentary and diagenetic characteristics of the Mesozoic clastic reservoirs in Yinger Depression, JiuDong Basin shows that the sedimentary environment and diagenetic environment have a certain succession, and the sedimentary environment controls the diagenetic characteristics to a certain degree. Diagenesis Reflects the brackish water to brackish water sedimentary environment. The diagenesis of sandstone is obviously affected by the diagenesis of mudstone, which is mainly reflected by the control of sandstone cementation and the evolution of mudstone organic matter on the pore development of sandstone. The characteristics of clay mineral assemblages and evolutions show that the Mesozoic and meta-alkaline diagenetic environments are dominant in the Mesozoic and the acidic diagenetic environments appear locally. Organic acids formed during hydrocarbon formation and evolution control of two sets of source rocks in this area control the development of secondary pore zones and form two secondary pore development zones in Mesozoic.