天然气地质学

柴达木盆地西部英雄岭东段下油砂山组油气地质条件及勘探潜力

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  • 中国石油勘探开发研究院西北分院,甘肃 兰州 730020
易定红(1975-),男,湖南邵阳人,高级工程师,硕士,主要从事沉积学与石油地质学研究. E-mail:yidh@petrochina.com.cn.

收稿日期: 2013-05-23

  修回日期: 2013-07-16

  网络出版日期: 2014-06-10

基金资助

中国石油天然气股份有限公司科学研究与技术开发项目“柴达木盆地油气勘探开发关键技术研究”(编号:07-01z-01-02)资助.

Petroleum Geological Conditions and Exploration Potential of Lower Youshashan Formation in Eastern Yingxiong Mountain of Western Qaidam Basin

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  • Northwest Branch, Research Institute of PetroChina Exploration and Development, Lanzhou 730020, China

Received date: 2013-05-23

  Revised date: 2013-07-16

  Online published: 2014-06-10

摘要

勘探实践表明柴达木盆地西部英雄岭地区中浅层上干柴沟组(N1)至上油砂山组(N22)地层油气勘探潜力巨大。通过对英雄岭东段英东断背斜砂37井以东至乌东斜坡下油砂山组(N12)河口坝、远砂坝砂体发育的规模、平面分布特征、变化规律,骨干断层平面形态、延伸范围、圈闭发育条件、油源条件和油气显示情况等方面的系统分析,认为研究区英东断背斜砂39井以东至乌南断鼻乌28井以北区域具有较好的油气地质条件,具备发育构造圈闭和构造背景上的岩性圈闭的地质条件,勘探潜力较大,是下一步油气勘探的重要接替区域。

本文引用格式

易定红,石亚军,倪祥龙,马新民,吴武军 . 柴达木盆地西部英雄岭东段下油砂山组油气地质条件及勘探潜力[J]. 天然气地球科学, 2014 , 25(6) : 818 -823 . DOI: 10.11764/j.issn.1672-1926.2014.06.818

Abstract

Exploration practice shows that the middle-shallow layer from the upper Ganchaigou Formation to the lower Youshashan Formation have great potential for oil and gas exploration in the Yingxiong Mountain in the western Qaidam Basin.Based on the systematical analysis of the mouth bar and distal bar sandstones of the lower Youshashan Formation from the Yingdong faulted anticline to Wudong slope in the eastern Yingxiong Mountain in the western Qaidam Basin from the aspects of its development scale,horizontal distribution,varying regulation,major fault flat form,extend range,trap development condition,oil source condition and oil/gas show,it is suggested that the area from the east of the well Sha39 in Yingdong faulted anticline to the north of the well Wu 28 in Wunan fault nose has good oil-gas geological condition.This area has geological conditions favorable for the development of structural traps and lithologic traps with tectonic settings.It is the important succeeding region of the following oil and gas exploration.

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