摘要
分别从宏观和微观两个方向,对子长油田XS井区长2储层的非均质性进行研究.结果表明:长2段地层主要发育分流河道砂体,储层的垂向粒度分布韵律以正韵律为主,且沉积大量泥质夹层,表现为较强层内非均质性;储层内部单砂体数较多,长2^(1)小层和长2^(2)小层的均质系数均接近于0,表现出较强层间非均质性;研究区内砂体及物性的平面展布呈现条带状分布,平面非均质性较强;长2储层填隙物发育种类较多且含量差异较大,孔隙与喉道的分布不均匀,微观非均质性较强.
In this paper,the heterogeneity of Chang 2 reservoir in XS well area of Zichang Oilfield is studied from macroscopic and microscopic perspectives.The results show that the Chang 2 formation mainly develops distributary channel sand bodies,and the vertical grain size distribution rhythm of the reservoir is mainly positive rhythm.A large number of argillaceous interlayers are deposited,exhibiting strong intra-layer heterogeneity.There are more single sand bodies in the reservoir,and the uniformity coefficients of Chang 2^(1) and Chang 2^(2) sub-layers are close to O,indicating strong inter-layer heterogeneity.In the study area,the planar distribution of sand body transitivity is banded,and the planar heterogeneity is strong.There are many kinds of developed interstitials in Chang 2 reservoir,and the content of interstitials varies greatly.The distribution of pores and throats is not uniform,and the microscopic heterogeneity is strong.
作者
王意尊
王桂成
胡慧
黄瑞丽
WANG Yizun;WANG Guicheng;HU Hui;HUANG Ruili(School of Earth Sciences and Engineering,Xi'an Shiyou University,Xian 710065,China;Shaanxi Key Laboratory of Petroleum Accumulation Geology,Xi'an Shiyou University,Xi'an 710065,China)
出处
《西安文理学院学报(自然科学版)》
2025年第2期69-75,111,共8页
Journal of Xi’an University(Natural Science Edition)
基金
陕西省自然科学基金项目:鄂尔多斯盆地南缘三叠系延长组优质烃源岩中碳酸岩的发现及其成因研究(2017JQ4007)。
作者简介
王意尊(2000-),男,河南开封人,西安石油大学硕士研究生,主要从事油气田开发地质研究;通讯作者:王桂成(1966-),男,河南长葛人,西安石油大学教授,博士,硕士研究生导师,主要从事油气田开发地质研究.
