论文部分内容阅读
东濮凹陷位于鲁西、豫北地区,是一个南宽北窄狭长形、以下第三系沉积为主的含油气盆地,面积约5300平方公里。经过几年钻探发现该盆地沉积了巨厚的生储盖岩系,最厚的达7000米,是自下而上以深灰色泥岩夹薄层油页岩、页岩为主的两套生油岩系,有机质中含有大量的孢粉化石。孢粉化石的色变作用,是指孢粉的颗粒掺合在沉积物中,随着埋藏深度的增加,温度增高,压力增大,使共有机质的组成及结构发生化学、热动力学的一系列变化,在外观上表现为颜色的变化,内部结构则表现为孢粉有机物降解为烃类物质和碳、氢、氧、氮等元素。通过东濮凹陷下第三系东营组、沙河街组(一至四段,主要为沙三段)的三十口并不同深
Dongpu depression is located in Luxi, northern area of Henan, is a narrow width of South W North, the following Tertiary sedimentary petroliferous basin, an area of about 5300 square kilometers. After several years of drilling, it has been discovered that the basin has a thick sedimentary cover-caprock system with a maximum thickness of 7,000 meters. It is composed of two sets of oil-producing bottom-up shale-based oil shale and shale Rocks, organic matter contains a large number of sporo-fossils. Sporopollen fossil discoloring refers to the sporopollen particles mixed in the sediment, with the increase of burial depth, the temperature increases, the pressure increases, so that the composition and structure of the organic matter chemistry, thermodynamics of a Changes in the series, the appearance of the performance of the color change, the internal structure of the performance of spore and pollen organic matter degradation of hydrocarbons and carbon, hydrogen, oxygen, nitrogen and other elements. Thirty of the Dongying Formation and Shahejie Formation (one to four sections, mainly the third member of Shahejie Formation) of the Lower Tertiary in the Dongpu Depression are not the same in depth