天然气地球科学 ›› 2011, Vol. 22 ›› Issue (4): 635–641.doi: 10.11764/j.issn.1672-1926.2011.04.635

• 天然气地质学 • 上一篇    下一篇

柴达木盆地三湖地区岩性气藏分布规律和有利区块预测

郭泽清, 刘卫红, 冯刚   

  1. 1.中国石油勘探开发研究院,北京 100083;
    2.中国石油勘探开发研究院廊坊分院,河北 廊坊 065007
  • 收稿日期:2010-04-21 修回日期:2011-06-07 出版日期:2011-08-10 发布日期:2011-08-10
  • 通讯作者: 郭泽清gzq1463@sina.com E-mail:gzq1463@sina.com
  • 作者简介:郭泽清(1976-),男,山东沾化人,博士研究生,主要从事天然气地质研究.
  • 基金资助:

    国家“大型油气田及煤层气开发”科技重大专项(编号:2008ZX05)资助.

Distribution Regularities and Favorable Exploration areas of Lithologic Gas Reservoir in Sanhu Area,Qaidam Basin

GUO Ze-Qing, LIU Wei-Hong, FENG Gang   

  1. 1.Research Institute of Petroleum Exploration and Development,CNPC,Beijing 100083,China;
    2.Langfang Branch,Research Institute of Petroleum Exploration and Development,CNPC,Langfang 065007,China
  • Received:2010-04-21 Revised:2011-06-07 Online:2011-08-10 Published:2011-08-10

摘要:

柴达木盆地三湖地区第四系的形成是在第三纪末期新构造运动作用下,盆地沉积中心由西向东整体迁移的产物,在第四系中发现了世界上最大的生物气田。近年来三湖地区发现岩性气藏,将现已发现的岩性气(层)藏分为砂岩上倾尖灭型、砂岩透镜体型和物性侧向变化型3种。并提出岩性气藏分布规律是:分布于北斜坡,依附于构造背景,位于k9标志层以下,赋存于薄层砂体中,限于一定的深度范围内。根据分布规律,提出三湖地区岩性气藏的有利勘探区块,为研究区下一步进行岩性气藏勘探提供了理路依据和现实依据。

关键词: 三湖地区, 第四系, 岩性气藏, 分布规律, 有利区块

Abstract:

The occurrence of the Quaternary in Sanhu area of Qaidam basin,which has trapped the largest biologic gas field,is the product of migration of basin depositional center from west to east under the tectonic movements at the end of Tertiary.In recent years,lithologic gas reservoirs have been found in this area and been divided into three types including sand updip pinch\|out,sand lens and sand property change in the lateral direction.The distribution regularities of lithologic gas reservoirs in the Sanhu area are summarized as distribution in the northern slope,development on the tectonic background,location below the marker bed k9,accumulation in thin sandstone and limitation to a certain depth.At last,according to the distribution regularity of lithologic gas reservoir,the authors point out favorable exploration areas of lithologic gas reservoir.This study has important theoretical and practical significances for lithologic gas reservoirs exploration in the Sanhu area of Qaidam basin.

Key words: Sanhu area;Quaternary, Lithologic gas reservoir, Distribution regularity, Favorable exploration areas.

中图分类号: 

  • TE122.2+4

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