塔里木盆地天山南地区雅克拉凝析气田亚格列木组沉积微相分析  

Sedimentary Microfacies Analyses of Yageliemu Formation of Yakela Condensate Gas Field in Southern Tianshan Area of Tarim Basin

作　　者：梁利侠 高亚宾 张浩[1] 邵光玉 印婷 丁辉 

机构地区：[1]中国石油化工股份有限公司西北油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《新疆地质》2013年第B12期66-71,共6页Xinjiang Geology

摘　　要：据岩心观察和测井、录井、钻井资料分析,结合测井相、骨架剖面微相,对亚格列木组的沉积微相平面展布及沉积相演化模式进行研究,认为雅克拉凝析气田目的层亚格列木组分为上段和下段两个沉积阶段,下段到上段沉积时期,发育水进背景下的水进型扇三角洲到退积型辫状河三角洲沉积体系,其中水进型扇三角洲主要发育辫状水道和扇中水道间微相;退积型辫状河三角洲包括辫状河三角洲平原和前缘2个亚相,发育的沉积微相有辫状分流河道、泛滥平原、水下分流河道、分流河道间及河口坝。研究区辫状分流河道、水下分流河道及辫状水道等优势沉积微相砂体较发育,砂体厚度较大,为物性较好的储集相带,是勘探开发的有利目标。Based on the core observation and the analysis of logging,geological logging and drilling data,also com-bined with the analysis of electrofacies and sedimentary microfacies of crosswell profile,the distribution of sedimentary microfacies and sedimentary facies evolution model of the Yageliemu Formation of the Yakela condensate gas field were studied. Meanwhile,the preliminary summary of the regional sedimentation model which contains the research area was carried out in this paper. The research results show that the main sedimentary facies types from the lower to the upper segment of Yageliemu Formation are transgressive alluvial fan and retrogradational braided delta facies,which form in the background of continuous water inflow in the study area. The primary sedimentary microfacies in transgressive allu-vial fan are braided stream and inter channel of middle fan while the retrogradational braided delta facies composed of braided delta plain,braided delta front,and many microfacies such as braided distributary channel,flood plain,underwa-ter distributary channel,inter distributary bay deposit and river mouth bar. The river channel sandbody of the dominant sedimentary microfacies in the study area are braided distributary channel,underwater distributary channel and braided stream,which have the higher thickness and the better reservoir protential that could be the favorable exploration and de-velopment goals.

关 键 词：天山南地区 亚格列木组 沉积微相 测井相 沉积模式 

分 类 号：P618.13[天文地球—矿床学]