准噶尔盆地红山嘴地区克拉玛依组辫状河三角洲沉积特征

发布时间：2018-04-09 00:15

本文选题：辫状河三角洲　切入点：沉积特征　出处：《东北石油大学学报》2016年04期

【摘要】：为明确准噶尔盆地红山嘴地区克拉玛依组复杂砂砾岩体的沉积成因,在精细岩心观察描述基础上,利用钻井、测井资料,结合古地理背景分析,研究克拉玛依组沉积特征。结果表明:克拉玛依组属于以牵引流为主的辫状河三角洲沉积,兼具间歇性碎屑流沉积;根据沉积构造与垂向沉积序列反映的不同沉积作用,克拉玛依组辫状河三角洲可分为三角洲平原、三角洲前缘及前三角洲等3个亚相,而Gms-Gm-Gf-Sp、Gi-St-Sm-Sh、Sp-Sh-Sp、Fh-Fm-M2、Gi-Sm-Fr、FrSp-Sm、M1-Sw、Fm-M1等8种主要岩相组合分别对应辫状河道、辫状分流河道、辫流坝、分流间湾、水下分流河道、河口坝、席状砂、水下分流间湾等沉积微相;克拉玛依组为"短源距、物源足、坡度陡、水流强"的水进型辫状河三角洲沉积模式。该成果为红山嘴地区油气储层研究提供参考。
[Abstract]:In order to clarify the sedimentary genesis of complex sandy gravel rock mass of Karamay formation in Hongshanzui area of Junggar Basin, the sedimentary characteristics of Karamay formation were studied based on fine core observation and description, well logging data and paleogeographic background analysis.The results show that the Karamay formation belongs to braided river delta deposits dominated by traction flow, and has intermittent clastic flow deposits, according to the different sedimentary processes reflected by sedimentary structures and vertical sedimentary sequences.The sedimentary microfacies of underwater distributary channel, estuarine dam, sheet sand and underwater interdistributary bay, and the Karamay formation are "short source distance, sufficient material source, steep slope and strong flow", and the sedimentary model of braided river delta is characterized by "short source distance, sufficient material source, steep slope and strong flow".The results provide a reference for the study of oil and gas reservoirs in Hongshanzui area.
【作者单位】：中国地质大学(北京)能源学院;中国石油新疆油田分公司第一采油厂;
【基金】：国家自然科学基金项目(41472091)
【分类号】：P618.13

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