Factors for controlling lithologic oil pool formation and exploration prospects in southern Songliao Basin

doi:10.7623/syxb200303005

Editorial office of ACTA PETROLEI SINICA ›› 2003, Vol. 24 ›› Issue (3): 24-27.DOI: 10.7623/syxb200303005

• Petroleum Exploration • Previous Articles Next Articles

Factors for controlling lithologic oil pool formation and exploration prospects in southern Songliao Basin

GUAN De-shi¹, LI Jian-zhong²

1. Guangzhou Institute of Geochemistry, Chinese Academy of Science, Guangzhou 510640, China;
2. Research Institute of Petroleum Exploration and Development, Petro China, Beijing 100083, China

Received:2002-07-08 Revised:2002-10-22 Online:2003-05-25 Published:2010-05-21

松辽盆地南部岩性油藏成藏要素及勘探方向

关德师¹, 李建忠²

1. 中国科学院广州地球化学研究所, 广东广州, 510640;
2. 中国石油勘探开发研究院, 北京, 100083

作者简介:关德师,男,1962年3月生,中国科学院广州地球化学研究所在读博士生,主要从事石油天然气地质研究工作.
基金资助:
国家自然科学基金资助项目(No.4002008).

Abstract

Abstract: There are three main controlling factors for forming a large area of lithologic oil pool in the southern Songliao Basin.The sandstone and mudstone were developed alternatively in the delta front belts and controlled the overall oil-bearing area.The north-north-west directional faults vertical to the sandstone elongation direction provided the effective lateral plugging condition,whereas many lacustrine mudstones formed during water invasion stage provided the good direct cap-rocks.Those are the essential conditions for oil-bearing area.Three delta front belts in west,south-west and south-east directions will be the main exploration targets for finding wide-area lithologic oil pools and also represent the actual domain to obtain petroleum reserves in recent period.

Key words: Songliao Basin, lithologic oil pool, controlling factors, exploration direction, delta front belt, lacustrine mudstone, fault

摘要： 松辽盆地南部大面积岩性油藏的形成主要受控于三大地质要素.三角洲前缘相带中砂岩、泥岩地层交互发育,控制着岩性油藏总体含油范围;与砂体分布方向近于垂直相交的北北西向断层为岩性成藏提供了有效的侧向封堵条件;湖侵过程中形成的多套湖相泥岩提供了重要的直接盖层,是形成大面积含油的必要条件.西部、西南、东南3个大三角洲的前缘相带是下一步寻找大面积岩性油藏的主攻方向,也是近期寻找地质储量的现实领域.

关键词: 松辽盆地, 岩性油藏, 控制要素, 勘探方向, 三角洲前缘相带, 湖相泥岩, 断层

CLC Number:

TE112

GUAN De-shi, LI Jian-zhong. Factors for controlling lithologic oil pool formation and exploration prospects in southern Songliao Basin[J]. Editorial office of ACTA PETROLEI SINICA, 2003, 24(3): 24-27.

关德师, 李建忠. 松辽盆地南部岩性油藏成藏要素及勘探方向[J]. 石油学报, 2003, 24(3): 24-27.

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Factors for controlling lithologic oil pool formation and exploration prospects in southern Songliao Basin

松辽盆地南部岩性油藏成藏要素及勘探方向

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