准噶尔盆地石南油田三工河组储集层沉积特征与油气分布  

Sedimentary Characteristics and Oil-Gas Distribution of Sangonghe Formation Reservoir of Lower Jurassic in Shinan Oilfield Junggar Basin

作　　者：孙宝宗[1] 温东山[1] 

机构地区：[1]中国石油新疆油田公司勘探开发研究院,新疆克拉玛依834000

出　　处：《新疆石油地质》2001年第2期126-128,共3页Xinjiang Petroleum Geology

摘　　要：通过对石南油田侏罗系三工河组油藏储集层沉积特征进行精细描述，应用地质、测井和地震等方法对沉积环境、沉积相和沉积层序进行综合分析发现，研究区目的层主要是一套受构造和气候条件控制的沉积成熟度低、富含牵引流成因的流水构造的辫状河三角洲沉积。通过对辫状河三角洲前缘沉积微相特征与含油气性对比分析认为，水下分流河道含油气性较好，是较为有利的开发层位；沉积微相对储集层非均质性及油水运动的影响尤为重要。Through detailed description of sedimentary characteristics of Sangonghe formation reservoir in Shinan oilfield using geologic well logging and seismic data comprehensive analysis on sedimentary environment sedimentary facies and sedimentary sequences it is found that Sangonghe formation of Jurassic in this area is mainly a set of braided stream delta deposits with abundance of running water structures originated from traction current genesis and it is less matured sediments controlled by structural and climate conditions． Comparative analysis between sedimentary microfacies characteristics of braided stream delta front sediments with the oil-gas bearing features has indicated that the underwater distributary channels suitable to hydrocarbon accumulation is a favorable zone for development． The sedimentary microfacies showed important effect on reservoir heterogeneity and oil-water movement．

关 键 词：沉积特征 储集层 辫状河三角洲 水下分流河道 准噶尔盆地 沉积微相 含油气性 三工河组 油田 油气分布 

分 类 号：TE121[石油与天然气工程—油气勘探] P618[天文地球—矿床学]