天然气地球科学

• 天然气勘探 • 上一篇    下一篇

用于沉积分析的地震沉积学技术研究

黄云峰,韩小峰,魏立花,黄小鹏,张丽萍   

  1. 中国石油勘探开发研究院西北分院,甘肃  兰州 730020
  • 收稿日期:2014-04-16 修回日期:2014-08-22 出版日期:2015-04-10 发布日期:2015-04-10
  • 作者简介:黄云峰(1978-),男,云南昭通人,高级工程师,主要从事石油地质综合研究. E-mail:huang_yf@petrochina.com.cn.
  • 基金资助:

    中国石油“岩性地层油气藏成藏规律、关键技术及目标评价”项目(编号:2011ZX05001)资助.

Seismic Sedimentology for the Deposition Analysis in Shannan Region

HUANG Yun-feng,HAN Xiao-feng,WEI Li-hua,HUANG Xiao-peng,ZHANG Li-ping   

  1. Northwest Branch,Research Institute of Petroleum Exploration and Development,PetroChina,Lanzhou 730020,China
  • Received:2014-04-16 Revised:2014-08-22 Online:2015-04-10 Published:2015-04-10

摘要:

鄯南地区SQ7砂体厚度薄、横向变化快,沉积砂体展布认识不明确,常规沉积分析方法和储层预测技术不能满足精细油气勘探的要求。基于地震沉积学分析原理和研究方法,利用90°相位化对地震剖面进行了岩性归位,采用地层等时切片等技术对该区SQ7砂体展布开展了地震沉积学研究。通过对等时格架下的地震属性切片和岩性体等时切片的分析,揭示了该区SQ7时期南部物源体系辫状河三角洲沉积的时空演化规律和沉积微相平面展布规律,精细刻画了砂体分布范围,为油气勘探部署提供了地震沉积依据。

关键词: 地震沉积学, 相位, 地层切片, 地震属性, 沉积微相

Abstract:

Since the thin sand of SQ7 in Shannan region has lateral change rapidly,and the sedimentary sand distribution is uncertain,so conventional analytical methods and reservoir prediction technology do not meet the requirements of oil and gas exploration.Based on the theory and the research method of seismic sedimentology,combined with lithology seismic data by 90°-phase regulation,this study investigates the sand plan of SQ7 taking use of seismic sedimentology technology,such as stratigraphic slices.By analyzing the seismic attribute slices and lithology seismic volume,the results revealed the evolution pattern of braided river delta sedimentary of southern provenance system and the distribution of sedimentary microfacies in SQ7,and finely described the sand distribution.It provided a seismic-sedimentary basis for oil and gas exploration.

Key words: Seismic sedimentology, Phase, Stratigraphic slice, Seismic attribute, Sedimentary microfacies

中图分类号: 

  • TE132.1

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