内蒙古二连盆地岩性油藏形成与分布的优势性特征

现代地质 ›› 2005, Vol. 19 ›› Issue (4): 570-578.

内蒙古二连盆地岩性油藏形成与分布的优势性特征

刘震¹，赵阳¹，肖伟¹，杜金虎²，张以民³，易士威³，刘俊榜¹

1中国石油大学石油天然气成藏机理教育部重点实验室，北京102249；
2中国石油勘探与生产分公司，北京100011；
3中国石油华北油田分公司，河北任丘062552

收稿日期:2005-04-15 修回日期:2005-07-15 出版日期:2005-04-20 发布日期:2005-04-20
作者简介:刘震，男，教授，博士生导师，1963年出生，石油地质学专业，主要从事石油地质学和层序地层学的研究与教学工作。

Predominant Characteristics of Formation and Distribution for Lithologic Petroleum Reservoir in Erlian Basin, Inner Mongolia

LIU Zhen¹，ZHAO Yang¹, XIAO Wei¹, DU Jinhu², ZHANG Yimin³, YI Shi-wei³, LIU Jun-bang¹

1 Key Laboratory for Hydrocarbon Accumulation Mechanism of Ministry of Education, China University of Petroleum, Beijing102249,China;
2 Exploration and Production Company, PetroChina, Beijing100011, China;
3 Huabei Oilfield Company, PetroChina, Renqiu, Hebei062552, China;

Received:2005-04-15 Revised:2005-07-15 Online:2005-04-20 Published:2005-04-20

摘要/Abstract

摘要：

近几年在内蒙古二连盆地岩性油藏勘探方面的突破表明，岩性油气藏的形成和分布比构造油气藏更具优势性特征。岩性油气藏形成的优势性表现在：（1）岩性圈闭多期形成有利于多期捕集油气；（2）近源短距离运移有利于成藏；（3）低部位岩性圈闭比高部位构造圈闭成藏期要早；（4）相对有利的盖层条件。保存条件也比构造油气藏要更具优势：（1）抬升剥蚀对岩性油藏的破坏程度小于对构造油藏的；（2）断层破坏对岩性油藏的破坏程度小于对构造油藏的。岩性油气藏的空间展布范围也更广阔：（1）同构造油藏相比，其分布范围更宽，陡坡带、缓坡带和洼槽带均可分布；（2）岩性油藏分布的体系域更宽，低水位体系域和高水位体系域都有富集；（3）岩性油藏分布的压力场更宽，在各种压力场环境中都有发现。因此，提出二连盆地岩性油气藏形成和分布具有“优势性特征”的观点。

关键词: 二连盆地, 岩性油气藏, 形成与分布, 优势性特征

Abstract:

The exploration in Erlian Basin in recent years shows that the lithologic reservoir has more predominant conditions in formation and distribution.The predominance in formation includes 4 aspects: ① lithologic traps have more forming periods and times, and it is helpful to entrap oil; ② lithologic reservoirs can be formed with only primary migration and short distance secondary migration; ③ lithologic reservoirs can be charged with oil earlier than structure reservoirs; ④ lithologic reservoirs have more advantaged sealing conditions.Lithologic reservoirs experience little destruction in the later structural activities: uplift and fault activities can destroy lithologic reservoirs little than structure reservoirs. The scope of distribution of lithologic reservoirs is more abroad: ① lithologic reservoirs can distribute not only in steep slope structure belt, but also in gentle slope structure belt and sag belt; ② lithologic reservoirs can enrich not only in low system tracts(LST), but also in high system tracts(HST); ③ lithologic reservoirs can distribute in all types of geopressures. So it is concluded that the lithologic reservoirs in Erlian Basin have predominant conditions in their formation and distribution.

Key words: Erlian Basin, lithologic reservoir, formation and distribution, predominant characteristics

中图分类号:

TE122

刘震，赵阳，肖伟，杜金虎，张以民，易士威，刘俊榜. 内蒙古二连盆地岩性油藏形成与分布的优势性特征[J]. 现代地质, 2005, 19(4): 570-578.

LIU Zhen,ZHAO Yang, XIAO Wei,DU Jinhu,ZHANG Yimin,YI Shi-wei,LIU Jun-bang. Predominant Characteristics of Formation and Distribution for Lithologic Petroleum Reservoir in Erlian Basin, Inner Mongolia[J]. Geoscience, 2005, 19(4): 570-578.

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