FORMATION AND DISTRIBUTION FEATURES OF LARGE-MEDIUM OIL-AND-GAS FIELDS IN MAIN FAULT DEPRESSIONS IN THE SONGLIAO BASIN
-
摘要: 在松辽盆地深部发育的30多个中生界断陷中,已发现的大中型油气田主要分布于贯穿盆地中央区域的北北东向孙吴—双辽岩石圈断裂两侧的徐家围子、十屋、长岭等3个富油气深断陷之中。这些深断陷的成油气地质条件和大中型油气田分布规律研究表明,大中型油气田分布在箕状深断陷生烃中心周缘发育的中央断垒带、缓坡坡折带、缓坡坡垒带、陡坡坡折带上的一批近东西向继承性鼻状隆起构造与地层超覆尖灭、岩性复合圈闭之中,其中,2个深断陷之间的中央隆起带往往是大型油气田的分布区域。为进一步发现大中型油气田,下一步应该围绕富油气深断陷的上述有利区带展开深度勘探。Abstract: More than 30 Mesozoic fault depressions develop in the center of the Songliao Basin.The discovered large-medium oil-and-gas fields mainly locate in the petroleum-rich deep fault depressions named Xujiaweizi,Shiwu and Changling on the two sides of the NNE oriented Sunwu-Shuangliao lithospheric fracture in the center of the basin.Study of the petroleum generating geologic condition of deep fault depressions and the distribution characteristics of large-medium oil-and-gas fields shows that,large-medium oiland-gas fields mainly locate in the EW oriented inherited nose-like structures in the central fault horst zone,the gentle slope break zone,the gentle slope horst zone and the steep slope break zone around hydrocarbon generating center of half-graben deep faults and the lithospheric overlapping pinch and lithologic traps.The central uprising belts between two deep fault depressions are usually where large oil-and-gas fields can be found.The future exploration should be focused on the above-mentioned regions in deep fault depressions.
-
[1] 周荔青,雷一心.松辽盆地断陷层系大、中型油气田形成条件及勘探方向[J].石油与天然气地质,2006,27(6):820～826,840 [2] 周荔青,吴聿元,张淮.松辽盆地断陷层系油气成藏的分区特征[J].石油实验地质,2007,29(1):7～12 [3] 王璞珺,陈树民,程日辉等.松辽盆地断陷期层序地层特征与含油气性:以徐家围子断陷为例[A].见:蔡希源,郑和荣编.陆相盆地高精度层序地层学:隐蔽油气藏勘探基础、方法与实践[G].北京:地质出版社,2004.225～236 [4] 刘为付.松辽盆地徐家围子断陷深层火山岩储层特征及有利区预测[J].石油与天然气地质,2004,26(1):115～119 [5] 金晓辉,林壬子,任延广等.松辽盆地北部深层天然气成藏动力系统及空间分布特征[J].石油实验地质,2005,27(3):260～264 [6] 刘为付,朱筱敏.松辽盆地徐家围子断陷营城组火山岩储集空间演化[J].石油实验地质,2005,27(1):44～50 [7] 曲爱英,盂元林,肖丽华等.储层质量钻前预测方法技术:以松辽盆地汪家屯地区为例[J].石油实验地质,2005,27(1):94～97 [8] 程日辉,王璞珺,刘万洙等.徐家围子断阶带对火山岩体和沉积相带的控制[J].石油与天然地质,2003,24(2):126～130 [9] 殷进垠,刘和甫,迟海江.松辽盆地徐家围子断陷构造演化[J].石油学报,2002,23(2):26～29 [10] 邓玉胜,王蕴,朱桂生等.松辽盆地南部长岭断陷火成岩特征及其对油气藏的控制[J].中国石油勘探,2003,8(3):31～37 [11] 郭少斌.松辽盆地东岭地区幕式成藏分析[J].石油实验地质,2005,27(2):134～137 [12] 何兴华.松南下白垩统天然气成藏主控因素与成藏规律[J].石油与天然气地质,2004,25(1):75～80 [13] 杨铭辉,郭力,赵洪涛等.松辽盆地南部东南隆起区储层特征[J].石油实验地质,2006,28(4):330～334 -
计量
- 文章访问数: 790
- HTML全文浏览量: 83
- PDF下载量: 298
- 被引次数: 0
下载:
苏公网安备32021102000780号