白音查干凹陷腾格尔组测井沉积微相研究  

Study on well logging sedimentary microfacies in Tengger Formation, Baiyinchagan Depresion

作　　者：李新虎[1,2] 石杰[1] 郭媛[1] 

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]西北大学地质学系,陕西西安710069

出　　处：《断块油气田》2012年第2期261-265,共5页Fault-Block Oil & Gas Field

基　　金：国家自然科学基金项目"煤层割理的微电阻率成像测井响应机理及数值模拟"(41072110);陕西省自然科学研究计划项目"煤层气储层参数的测井非线性解释模型及响应特征研究"(SJ08D06)

摘　　要：从区域沉积背景、岩石学特征和岩-电响应特征分析出发,通过提取反映沉积微相的测井曲线幅值和特征参数,分析测井曲线特征参数与岩性和沉积微相的对应关系,建立白音查干凹陷腾格尔组测井相模式。分析结果表明,白音查干凹陷南部缓坡带腾格尔组,以辫状河三角洲沉积类型为主,可进一步划分为水上分流河道、泛滥平原、水下分流河道、分流间湾、河口坝、前缘席状砂、前缘楔状砂等7个沉积微相。通过单井测井微相、沉积特征及层序地层特征研究,对该区储层沉积体系和沉积相划分进行了完善,为进一步的油气勘探提供了有力依据。Through analyzing the corresponding relationship between the log characteristics parameters and sedimentary microfacies, the electrofacies mode of Tengger Formation in Baiyinchagan Depression is established based on the regional sedimentary background, the rock characteristics, the rock-electricity response characteristics and the extraction of logs curve amplitude and the characteristics parameters which can reflect sedimentary mierofacies. The results show that the southern ramp of Tengger Formation in Baiyinchagan Depression takes the braided delta facies as the major style and it can be further divided into 7 sedimentary mierofacies, including upperwater distributary channel, flood plain, underwater distributary channel, interdistributary bay, mouth bar, frontal sheet sand and frontal wedge-shaped sand. The divisions of sedimentary system and sedimentary facies are perfected though analyzing the logging microfacies, sedimentary and sequence stratigraphy characteristics of single well, which can provide an effective basis for the further exploration of oil and gas in this area.

关 键 词：测井 沉积微相 岩-电响应 测井相模式 腾格尔组 白音查干凹陷 

分 类 号：TE121.3[石油与天然气工程—油气勘探]