涠西探区海中三维非构造圈闭识别  

Identification of Non-structural Traps in Haizhong Depression of Weixi Exploration Area

作　　者：周静毅 张大海 黄建军[1] 张纪 王楠 

机构地区：[1]中国石油化工股份有限公司上海海洋油气分公司研究院,上海200120

出　　处：《海洋石油》2015年第4期8-12,62,共6页Offshore Oil

摘　　要：利用涠西探区新采集处理的PSDM地震资料,运用层序地层学、沉积学的理论和方法技术,在地震、钻井成果精细解释的基础上,开展了地震属性、地震谱分解、地震波阻抗反演、砂体空间雕刻技术等地球物理综合解释,在探区海中三维工区识别出了非构造圈闭:流沙港组二段岩性圈闭和涠洲组四段岩性圈闭,并对识别的非构造圈闭进行了储层及含油气性分析。研究成果可为涠西探区的钻探目标评价提供依据。By using PSDM seismic data from Weixi exploration area, guided by sequence stratigraphy and sedimento[ogy theory, non-structural traps have been identified through comprehensive geophysical interpretation by seismic attribute study, seismic spec- tral decomposition, seismic impedance inversion and sand body description on the basis of fine interpretation results of seismic and logging data. The identified non-structural traps are mainly lithologic traps in Member-2 of Liushagang Formation and Member-4 of Weizhou Formation. In addition, analysis about the reservoir and hydrocarbon bearing conditions in the identified non-structural traps has been carried out. The analyzing results can provide basis for evaluation on the drilling targets in Weixi exploration area.

关 键 词：涠西探区 非构造圈闭 波阻抗反演 地震属性 

分 类 号：P631.4[天文地球—地质矿产勘探]