三维地震技术在泌阳凹陷碱矿勘查中的应用  

Application of 3D seismic technology in exploration of alkali ore in Biyang Depression

作　　者：陈英男 陈建立[2] 陈金铎[2] 李文涛[2] 郭鹏[2] 魏从玲[2] Chen Yingnan;Chen Jianli;Chen Jinduo;Li Wentao;Guo Peng;Wei Congling(Wuhan University of Engineering Science,Wuhan 430200,China;No.1 Institute of Geology and Exploration,Henan Geology and Exploration Bureau,Zhengzhou 450001,China)

机构地区：[1]武汉工程科技学院,湖北武汉430200 [2]河南省地质矿产勘查开发局第一地质勘查院,河南郑州450001

出　　处：《能源与环保》2021年第3期52-58,共7页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：河南省地勘基金项目(豫国土资发[2011]75号、[2012]80号)。

摘　　要：通过对泌阳凹陷进行三维地震资料解译、层位信息合成、精细解释以及速度场建立,绘制了泌阳凹陷沉积主体寥庄组、核桃园组一、二、三段的底面构造图,得出以下结论:自核一段至廖庄组这一时期,安棚次凹长期存在,但向北西部逐渐萎缩;利用典型界面的地层切片确定了沉积体系特别是白云岩的识别特征,通过对含碱层主要分布的核桃园组自SQ1至SQ4的地层切片、关键井岩芯序列特征和岩性标定工作,确定了地震反射同相轴代表的岩性,进行了沉积微相的解释,也圈定了不同沉积地层(包括含碱岩层)的分布范围。Through the interpretation of three-dimensional seismic data,the synthesis of stratigraphic information,detailed interpretation,and the establishment of velocity field of Biyang Depression,the sole structure of Liaozhuang formation and the He-1 sequence,the He-2 sequence,the He-3 sequence of Hetaoyuan Formation were plotted.It was concluded that"Anpeng Secondary Depression existed for a long time from the He-1 sequence stage to Liaozhuang formation,but gradually shrank to the north and west".Stratal slice of typical interface was used to identify the characteristics of sedimentary strata,especially dolomite.Based on the stratigraphic slices from SQ1 to SQ4,core sequence characteristics of key wells and lithologic calibration of Hetaoyuan Formation,which is mainly distributed in alkali bearing beds,the lithology represented by seismic reflection in-phase axis was determined,the sedimentary microfacies were interpreted,and the distribution range of different sedimentary strata(including alkali bearing strata)was also delineated.

关 键 词：泌阳凹陷 三维地震勘查技术 地震解释 底面构造 地层切片 含碱岩系 

分 类 号：P631.4[天文地球—地质矿产勘探]