鄂尔多斯盆地东缘临兴-神府区块致密砂岩气高效成藏条件

doi:10.7623/syxb2016S1011

石油学报 ›› 2016, Vol. 37 ›› Issue (S1): 111-120.DOI: 10.7623/syxb2016S1011

鄂尔多斯盆地东缘临兴-神府区块致密砂岩气高效成藏条件

傅宁, 杨树春, 贺清, 徐微, 林青

中海油研究总院北京 100028

收稿日期:2016-03-21 修回日期:2016-09-10 出版日期:2016-10-31 发布日期:2016-11-30
通讯作者: 傅宁,男,1961年2月生,1985年获华东石油学院学士学位,现为中海油研究总院教授级高级工程师,主要从事石油地球化学综合研究工作。Email:funing@cnooc.com.cn
作者简介:傅宁,男,1961年2月生,1985年获华东石油学院学士学位,现为中海油研究总院教授级高级工程师,主要从事石油地球化学综合研究工作。Email:funing@cnooc.com.cn
基金资助:
国家重点基础研究发展计划（973）项目“南海深水区盆地热演化与生烃作用研究”资助。

High-efficiency reservoir formation conditions of tight sandstone gas in Linxing-Shenfu blocks on the east margin of Ordos Basin

Fu Ning, Yang Shuchun, He Qing, Xu Wei, Lin Qing

CNOOC Research Institute, Beijing 100028, China

Received:2016-03-21 Revised:2016-09-10 Online:2016-10-31 Published:2016-11-30

摘要/Abstract

摘要：

应用烃源岩地球化学、流体包裹体和盆模热史等分析方法，详细对比研究了鄂尔多斯盆地东缘临兴-神府区块致密气藏油气成藏的差异以及火山对烃源岩的热作用。研究结果表明，成熟度是控制上述区块油气高效成藏的关键条件。临兴区块烃源岩成熟度R_o约为0.9%~2.5%，神府区块烃源岩成熟度R_o约为0.7%~1.2%，临兴区块烃源岩成熟度明显高于神府区块；早白垩世末构造热事件引起的紫金山火山热作用是导致临兴区块成熟度较高的主要原因。由于烃源岩成熟度的差异，导致了两个区块烃源岩总生气强度、储层包裹体温度和储层含油包裹体丰度（GOI）均出现较大的差异，临兴区块各项指标均优于神府区块，临兴区块勘探潜力明显优于神府区块。

关键词: 致密气藏, 烃源岩成熟度, 紫金山火山, 生烃强度, 包裹体, 临兴-神府区块

Abstract:

Using source rock geochemistry, fluid inclusion, basin modeling, thermal history, and other methods, a thorough comparative analysis was made on the difference in hydrocarbon accumulation and the thermal action of volcanoes on source rocks respectively in Linxing-Shenfu blocks on the east margin of Ordos Basin. The results show that maturity is a key factor controlling high-efficiency reservoir formation in the above blocks. The source rock maturity R_o of Linxing block is about 0.9% -2.5%, and it is about 0.7% -1.2% in Shenfu block, indicating significantly higher source rock maturity of Linxing block than that of Shenfu block; Zijinshan volcano thermal action caused by tectonic thermal events in the late Early Cretaceous is a primary cause for high maturity of Linxing block. Due to difference in source rock maturity, there are large differences in total gas generation intensity of source rocks, inclusion temperature and grain with oil inclusion in the two blocks. The indicators of Linxing block are superior to that of Shenfu block, and the exploration potential of Linxing block is significantly superior to that of Shenfu block.

Key words: tight gas reservoir, source rock maturity, Zijinshan volcano, hydrocarbon generation intensity, inclusion, Linxing-Shenfu blocks

中图分类号:

TE122

傅宁, 杨树春, 贺清, 徐微, 林青. 鄂尔多斯盆地东缘临兴-神府区块致密砂岩气高效成藏条件[J]. 石油学报, 2016, 37(S1): 111-120.

Fu Ning, Yang Shuchun, He Qing, Xu Wei, Lin Qing. High-efficiency reservoir formation conditions of tight sandstone gas in Linxing-Shenfu blocks on the east margin of Ordos Basin[J]. Acta Petrolei Sinica, 2016, 37(S1): 111-120.

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鄂尔多斯盆地东缘临兴-神府区块致密砂岩气高效成藏条件

High-efficiency reservoir formation conditions of tight sandstone gas in Linxing-Shenfu blocks on the east margin of Ordos Basin

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