准噶尔腹部沙漠结构特征分析  

Analyses of Desert Structure Character in the Center of Junggar Basin

作　　者：薛为平[1] 郑鸿明[1] 姚茂敏[1] 马晶晶[1] 康月萍[1] 殷晓兰[1] 

机构地区：[1]新疆油田分公司勘探开发研究院地球物理研究所,新疆乌鲁木齐830011

出　　处：《新疆地质》2014年第3期361-364,共4页Xinjiang Geology

摘　　要：古尔班通古特沙漠位于准噶尔盆地腹部。以往对表层结构的认识局限于表层调查设备的能力,近年来随着钻探力度的加大,对表层结构特征又有了新的认识。通过对空间上分布的新采集的微测井调查资料,分析古尔班通古特沙漠形成机理,表层介质的构成,及各层速度和厚度的变化规律。掌握了其结构特征,对该区建立表层结构模型,精确计算静校正有重要指导意义,能有效帮助静校正计算人员合理构建表层结构模型。实际应用表明,在新认识指导下建立的表层结构模型,有效消除了以往地震剖面中的静校正不同波长问题,为地震资料处理和精细解释提供可靠的数据资源。Gurbantunggut Desert is located in the center of Junggar basin,In the past,the acquaintance of surface structure is limited by the surface survey equipment ability.With the increasingly drilling effort,a new awareness has been acquired.By means of the new collected micro logging data that distributed on the space,anylized the formation machanism of the Gurbantunggut Desert,the composition of the surface material,and the varying pattern of each layer＇s speed and thickness.Possessed the structure character of Gurbantunggut Desert,and it is meaning for establish the surface structure model and calculate the statics correction accurately, and it is contributed for the staff to establish the surface structure model legitimately.Practical application suggested that the the surface structure model established under the direction of the new awareness,eliminated the different wave length problem in the statics correction of seismic section effectively, provided lots of data resources in seismic data processing and exquisite interpretation.

关 键 词：沙漠 砂砾 浅表层 静校正 地震微测井 厚度 速度 

分 类 号：P931.3[天文地球—自然地理学]