冀中坳陷富油凹陷勘探现状及勘探思路
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摘要
冀中坳陷历经多年勘探,但富油凹陷之间、不同构造单元或区带之间、不同勘探层系之间以及不同勘探领域之间的勘探程度仍明显不均衡,而富油凹陷勘探程度尽管较高,但剩余油气资源还很丰富,存在老区新凹陷、隐蔽油藏、复杂断裂带、深潜山和小潜山及潜山内幕、特殊类型油藏等5大勘探接替领域。要深化富油凹陷的勘探,必须以富油凹陷油藏在不同构造单元、不同区带、不同层系、不同储集层类型三维空间复式叠合连片分布的新勘探理念为指导,勘探重点由构造油藏转为隐蔽油藏、由正向构造带转为负向构造区、由构造带高部位转为构造带翼部、由环洼转为洼槽、由单一油藏类型转为多种油藏类型,大胆探索新的勘探领域。图5参12
The Jizhong Depression has been explored for years, but there remains a strong imbalance in the level of understanding of various sags, zones, and formations. Despite their long history of development, some oil-rich sags still have a large quantity of residual resource in the forms of five potential play targets: undeveloped sags in the developed depression, hidden reservoir, complex fault structure, and deeply buried and small hills and some special reservoirs. Thus, the current exploration strategy should focus on the distribution of various types of reservoirs in 3D space in terms of overlapping and connecting different structure unit, zone and strata. The play should be changed from structure-controlled reservoir to hidden reservoir, from up structure belt to down structure region, from the top to the limb of structural zones, from sub-sag peripheral to sub-sag, and from single type to multiple type of reservoirs.
The Jizhong Depression has been explored for years, but there remains a strong imbalance in the level of understanding of various sags, zones, and formations. Despite their long history of development, some oil-rich sags still have a large quantity of residual resource in the forms of five potential play targets: undeveloped sags in the developed depression, hidden reservoir, complex fault structure, and deeply buried and small hills and some special reservoirs. Thus, the current exploration strategy should focus on the distribution of various types of reservoirs in 3D space in terms of overlapping and connecting different structure unit, zone and strata. The play should be changed from structure-controlled reservoir to hidden reservoir, from up structure belt to down structure region, from the top to the limb of structural zones, from sub-sag peripheral to sub-sag, and from single type to multiple type of reservoirs.
引文
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[2] 梁星如,单保东,赵政权,等.分析地震反射相位特征优选钻探目标[J].石油勘探与开发,2002,29(4):53 54.
[3] 梁星如,杜新江,李博,等.冀中复杂断块区提高滚动勘探精度和效益的关键技术[J].石油勘探与开发,2000,27(3):36 39.
[4] 胡见义,童晓光,徐树宝.渤海湾盆地古潜山油藏的区域分布规律[J].石油勘探与开发,1981,8(5):1 9.
[5] 范泰雍,等.潜山油气藏[M].北京:石油工业出版社,1982.
[6] 杜金虎,等.冀中拗陷古潜山复式油气聚集区[M].北京:科学出版社,2002.
[7] 葛许芳,唐瑾,吴郁,等.冀中坳陷河间南潜山油藏勘探技术[J].石油勘探与开发,2003,30(1):54 56.
[8] 朱庆忠,李春华,杨合义.廊固凹陷大兴砾岩体成因与油气成藏[J].石油勘探与开发,2003,30(4):34 36.
[9] 胡见义,等.中国陆相石油地质理论基础[M].北京:石油工业出版社,1991.
[10] 胡见义,等.渤海湾盆地复式油气聚集区的形成和分布[J].石油勘探与开发,1986,13(1):1 8.
[11] 胡见义,徐树宝,童晓光.渤海湾盆地复式油气聚集区(带)的形成和分布[J].石油勘探与开发,1986,13(1):1 8.
[12] 马丽娟,解习农,任建业.东营凹陷古构造对下第三系储集体的控制作用[J].石油勘探与开发,2002,29(2):64 66,89.
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