岩性油气藏 ›› 2022, Vol. 34 ›› Issue (4): 22–31.doi: 10.12108/yxyqc.20220403

• 地质勘探 • 上一篇    下一篇

四川盆地高磨地区寒武系沧浪铺组碳酸盐岩颗粒滩地震响应特征及展布规律

李珊珊1, 姜鹏飞2, 刘磊1,3, 雷程4, 曾云贤4, 陈仕臻1,3, 周刚4   

  1. 1. 成都理工大学 沉积地质研究院, 成都 610059;
    2. 中国石油西南油气田公司, 成都 610051;
    3. 成都理工大学 油气藏地质及开发工程国家重点实验室, 成都 610059;
    4. 中国石油西南油气田公司 勘探开发研究院, 成都 610041
  • 收稿日期:2021-11-07 修回日期:2022-01-11 出版日期:2022-07-01 发布日期:2022-07-07
  • 通讯作者: 刘磊(1988-),男,博士,研究员,主要从事沉积地质学方面的教学和研究工作。Email:liulei10owen@163.com。 E-mail:liulei10owen@163.com
  • 作者简介:李珊珊(1997-),女,成都理工大学在读硕士研究生,研究方向为地质学。地址:(610059)四川省成都市成华区二仙桥东三路1号。Email:2394692884@qq.com
  • 基金资助:
    国家自然科学基金“鄂西地区灯影组多期次碳酸盐重力流沉积特征及形成演化过程”（编号：42102132）资助

Seismic response characteristics and distribution law of carbonate shoals of Cambrian Canglangpu Formation in Gaoshiti-Moxi area,Sichuan Basin

LI Shanshan1, JIANG Pengfei2, LIU Lei1,3, LEI Cheng4, ZENG Yunxian4, CHEN Shizhen1,3, ZHOU Gang4   

  1. 1. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;
    2. PetroChina Southwest Oil and Gas Field Company, Chengdu 610051, China;
    3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China;
    4. Research Institute of Exploration and Development, PetroChina Southwest Oil and Gas Field Company, Chengdu 610041, China
  • Received:2021-11-07 Revised:2022-01-11 Online:2022-07-01 Published:2022-07-07

PDF (PC)

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摘要： 四川盆地寒武系沧浪铺组具有良好的成藏地质条件和广阔的勘探前景。通过岩心、三维地震数据、钻测井等资料，利用地质与地球物理相结合，对高磨地区沧浪铺组颗粒滩地震反射特征及沉积特征进行了研究。研究结果表明：①四川盆地高磨地区寒武系沧浪铺组可识别出4种地震反射特征，分别对应4类沉积微相组合，其中强振幅、低频、高连续反射对应的颗粒滩最为发育；②研究区颗粒滩发育于沧一段上部，分布于高磨断裂以东，形态为条带状或不规则状，长轴方向近似平行于古隆起边界，并围绕2个古隆起的翼部呈北东东和北北西方向展布；③沧浪铺组沉积时期，高磨地区整体为浅海陆棚相沉积，发育大量碳酸盐岩颗粒滩，各类颗粒滩的发育及分布主要受海平面变化、沉积期古地貌及物源供给等因素共同控制。

关键词: 地震反射, 碳酸盐岩, 颗粒滩, 古隆起, 沧浪铺组, 寒武系, 高磨地区, 四川盆地

Abstract: The Cambrian Canglangpu Formation in Sichuan Basin has good accumulation conditions and great exploration prospects. Based on the data of cores,three-dimensional seismic,drilling and logging,and through the combination of geology and geophysics,the seismic reflection characteristics and sedimentary characteristics of shoals of Canglangpu Formation in Gaomo area were studied. The results show that:(1)Four kinds of seismic reflection characteristics can be identified in Cambrian Canglangpu Formation in Gaoshiti-moxi area,corresponding to four types of sedimentary microfacies combination,among which the shoals corresponding to strong amplitude,low frequency and high continuous reflection is the most developed.(2)Shoals developed in the upper part of the first member of Canglangpu Formation,distributed in eastern Gaomo fault,and spread out in NEE and NNW direction around the wings of two paleo-uplift,with a striped or irregular shape,and the long axis direction is nearly parallel to the paleo-uplift boundary.(3)During the sedimentary period of Canglangpu Formation,Gaomo area was in shallow sea shelf facies as a whole,and large number of carbonate shoals were developed. The development and distribution of shoals are mainly controlled by sea level changes,paleogeomorphology and source supply at the sedimentary period.

Key words: seismic reflection, carbonate rock, shoal, paleo-uplift, Canglangpu Formation, Cambrian, Gaoshiti-Moxi area, Sichuan Basin

中图分类号: 

  • TE121.3
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