于奇地区三叠系哈二段岩性圈闭识别技术研究  

Lithological Trap Recognition Technology of Ha2 Form ation in Yuqi Area

作　　者：骆福嵩 李玉兰[1] 韩博 郑贺梅 王军 Luo Fusong;Li Yulan;Han Bo;Zheng Hemei;Wang Jun(Exploration and Development Research Institute,Northwest Oilfi eld Branch,Xinjiang,830011;Geophysical Research Institute of China Petrochemical Jiangsu Oilfi eld Branch,Jiangsu,210000;Beijing Ketai Hengye Petroleum Technology Co.,Ltd.,Beijing,100000)

机构地区：[1]中国石化西北油田分公司勘探开发研究院,新疆830011 [2]中国石化江苏油田分公司物探研究院,江苏210000 [3]北京科泰恒业石油技术有限公司,北京100000

出　　处：《当代化工研究》2023年第21期158-160,共3页Modern Chemical Research

摘　　要：塔河油田于奇地区碎屑岩领域经多轮探索,在低幅度构造领域获得工业油气流,有较好的勘探前景。研究区域三叠系哈二段(哈拉哈塘组二段)为滨浅湖沉积背景下的大套泥岩夹薄层砂岩,匹配喜山晚期构造反转形成了砂体向南上倾尖灭,具备岩性圈闭发育良好条件。针对于目前该区域所存在问题,低幅度圈闭面积小、幅度低,不能满足高效勘探需求,进一步圈闭落实困难。本文在砂体地震响应特征正演研究基础上,通过属性刻画、地震反演等方法联合分析,对于该区域开展砂体平面分布定性预测及厚度定量预测,优选了有利勘探区域,研究结果表明通过地震响应特征正演,属性刻画与地震反演方法联合分析,总结了一套适合该地区三叠系哈二段的岩性圈闭落实方法,对相似地质背景岩性圈闭落实具有一定的推广应用价值。Industrial oil&gas flow was gained in low-profile structures of Yuqi area,Tahe oil field,which shows good exploration prospect for clastic rock fomation of Yuqi.In our research area,thin sand of Ha2 formation was developed between thick shale,and thin out to south direction,which partly because of the tectonic reverse during late Himalayan movement.In view of the existing problems in this area,the low-amplitude trap area is small and the amplitude is low,which cannot meet the demand for efficient exploration,and further trap implementation is difficult.Based on the forward modeling of the seismic response characteristics of sand bodies,this paper carried out qualitative prediction of the plane distribution of sand bodies and quantitative prediction of the thickness of sand bodies in this region through the joint analysis of attribute characterization and seismic inversion,and selected favorable exploration areas.The research results show that through the joint analysis of the forward modeling of seismic response characteristics,attribute characterization and seismic inversion methods,this paper summarizes a set of lithologic trap implementation methods suitable for Ha2 formation in this area,which has certain popularization and application value for similar geological background lithologic trap implementation.

关 键 词：于奇地区 三叠系 岩性圈闭 储层预测 

分 类 号：TE12[石油与天然气工程—油气勘探]