库车坳陷依南2气藏油气运移路径及充注特征

北京大学学报（自然科学版）

库车坳陷依南2气藏油气运移路径及充注特征

范俊佳^1,2,3,4,潘懋¹,周海民²,柳少波^2,3,4,卓勤功^2,3,4,郑永平^2,3,4

1. 北京大学地球与空间科学学院, 北京 100871; 2. 中国石油勘探开发研究院, 北京 100083;3. 中国石油集团盆地构造与油气成藏重点实验室, 北京 100083; 4. 提高石油采收率国家重点实验室, 北京 100083;

收稿日期:2013-04-10 出版日期:2014-05-20 发布日期:2014-05-20

Hydrocarbon Migration Pathway and Charging Characterization of Yinan-2 Gas Reservoir in Kuqa Depression

FAN Junjia^1,2,3,4, PAN Mao¹, ZHOU Haimin², LIU Shaobo^2,3,4, ZHUO Qingong^2,3,4, ZHENG Yongping^2,3,4

1. School of Earth and Space Sciences, Peking University, Beijing 100871; 2. Research Institute of Petroleum Exploration and Development, Beijing 100083; 3. Key Laboratory of Basin Structure and Hydrocarbon Accumulation,CNPC, Beijing 100083; 4. State Key Laboratory of Enhanced Oil Recovery, Beijing 100083;

Received:2013-04-10 Online:2014-05-20 Published:2014-05-20

摘要/Abstract

摘要： 在流体包裹体观测、测井曲线及依南2气藏综合地质资料分析的基础上, 利用定量荧光技术分析库车坳陷依南2气藏26块砂岩样品的荧光光谱特征, 揭示该气藏油气运移路径及油气充注特征。研究表明, 依南2气藏经历了早期原油充注、原油泄漏与晚期天然气充注过程。由储层砂岩样品的QGF定量荧光光谱响应与烃类包裹体分析, 推测依南2气藏早期油源来自深部三叠系泥岩层与侏罗系煤层, 通过垂直向上运移, 古油藏经历构造破坏, 发生泄漏, 未形成具有规模的古油藏。QGF-E荧光光谱响应表明, 天然气运移路径亦为垂直向上运移, 依南2气藏储层4750 m以下可能为大面积含气区。TSF荧光指纹图揭示, 依南2气藏具有混源特征, 气源由侏罗系煤层和三叠系湖相泥岩烃源岩共同贡献。

关键词: 定量颗粒荧光, 荧光光谱, 运移路径, 充注史, 依南2气藏

Abstract: In order to reveal hydrocarbon migration pathway and charging history of Yinan-2 gas reservoir in Kuqa Depression, 26 sand samples from well Yinan-2 were tested by using of Quantitative fluorescence techniques and fluid inclusions observation method based on well log curves and comprehensive geological data analysis. It is indicated that the Yinan-2 gas reservoir experienced oil charging of early stage, oil leakage and gas charging in late stage. Early oil accumulation of Yinan-2 gas reservoir may come from Jurassic coal bearing formation and Triassic lacustrine mudstone formation according to the quantitative grain fluorescence responds of sandstone samples. Current natural gas accumulation was migrated vertically from deep part, and the area below 4750 m might be an extensive and continuous gas-bearing area based on the analysis of quantitative grain fluorescence on extracts of sandstone samples. Besides, total scanning fluorescence fingerprint indicates that the current natural gas accumulation is derived from Jurassic coal seams and Triassic lacustrine mudstone formation.

Key words: quantitative grain fluorescence, fluorescence spectrum, migration pathway, charging history, Yinan-2 gas reservoir

中图分类号:

P618

范俊佳,潘懋,周海民,柳少波,卓勤功,郑永平. 库车坳陷依南2气藏油气运移路径及充注特征[J]. 北京大学学报（自然科学版）.

FAN Junjia,PAN Mao,ZHOU Haimin,LIU Shaobo,ZHUO Qingong,ZHENG Yongping. Hydrocarbon Migration Pathway and Charging Characterization of Yinan-2 Gas Reservoir in Kuqa Depression[J]. Acta Scientiarum Naturalium Universitatis Pekinensis.

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链接本文: https://xbna.pku.edu.cn/CN/

https://xbna.pku.edu.cn/CN/Y2014/V50/I3/507

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