阿尔金南缘山前侏罗系页岩气地质特征

李伟奇; 康志宏; 周磊; 童雪飞; 皇甫静静

doi:10.11781/sysydz201602178

阿尔金南缘山前侏罗系页岩气地质特征

doi: 10.11781/sysydz201602178

1.
中国地质大学(北京)能源学院, 北京 100083
2. 中国地质大学页岩气勘查与评价国土资源部重点实验室, 北京 100083

基金项目: 国家自然科学基金项目(41272132)和中国地质调查局地质调查项目(12120113040000)资助。

详细信息

作者简介:
李伟奇(1989-),男,硕士研究生,矿产普查与勘探,石油地质方向。E-mail:dqpilwq@126.com。

通讯作者:
康志宏(1966-),男,教授级高级工程师,从事石油地质研究工作。E-mail:kangzh98@163.com。

中图分类号: TE122.1
计量
- 文章访问数: 1650
- HTML全文浏览量: 65
- PDF下载量: 981
- 被引次数: 0
出版历程
- 收稿日期: 2015-05-27
- 修回日期: 2016-01-04
- 刊出日期: 2016-03-28

Geological characteristics of the Jurassic shale gas play in the frontal area of the southern Altun Tagh

1.
School of Energy Resources, China University of Geosciences, Beijing 100083, China
2. Key Laboratory for Shale Gas Exploration and Assessment, Ministry of Land and Resources, China University of Geosciences, Beijing 100083, China

摘要

摘要: 阿尔金南缘山前侏罗系泥页岩发育,但页岩气勘探尚未涉及。以野外地质调查和岩心观察描述为基础,通过采样分析测试,厘定了阿尔金山前侏罗系泥页岩层段的分布和有机地化特征,识别出了有效页岩的赋存层位和分布区域。发育于半深湖环境的大煤沟组,是侏罗系泥页岩层段的主体,沿山前呈NE-SW向条带状展布。泥页岩总有机碳含量主要分布于1.00%~5.19%,有机质成熟度主要分布于1.11%~2.87%,有机质类型以Ⅱ₁-Ⅱ₂型为主。借鉴北美经验,认为山前大煤沟组泥页岩层厚较大,有机质丰度高,类型和热演化阶段适宜生气,页岩气发育的地质条件较好;月牙山区带、黑石山-三脚架区带、柴水沟-清水河区带以及茫崖1号沟区带为4个页岩气有利区。
- 页岩气 /
- 地质特征 /
- 有机地化 /
- 侏罗系 /
- 阿尔金山前
Abstract: The Jurassic shales were deposited in the frontal area of the southern margin of the Altun Tagh, but shale gas exploration or assessment has not be carried out. Some samples have been analyzed and tested using field geological surveys and core observation and description to determine the distribution and organic geochemical characteristics of shale layers in the Jurassic. Also the occurrence and distribution of effective shales in the frontal area of the Altun Tagh were identified. The Dameigou Formation, which forms the majority of the Jurassic shale layers, developed in a semi-deep lacustrine environment and shale was distributed in the NE-SW direction along the frontal area. Total organic carbon (TOC) ranges from 1.00% to 5.19% for high organic matter abundance, the organic matter maturity (R_o) varies from 1.11% to 2.87%, and the organic matter is dominated by type-Ⅱ₁ kerogen to type-Ⅱ₂ kerogen. The shale layers of the Dameigou Formation in the frontal area are thick, the abundance of organic matter is high, the type and the thermal evolution stage are favorable to produce gas, and comparison with North American deposits suggests that the geological conditions to accumulate shale gas are good. There are four favorable exploration targets for shale gas, including Yueyashan, Heishishan-Sanjiaojia, Chaishuigou-Qingshuihe, and Mangya areas.
- shale gas /
- geological condition /
- organic geochemistry /
- Jurassic /
- frontal area of the Altun Tagh

HTML全文

参考文献(16)

[1]	张金川,林腊梅,李玉喜,等.页岩气资源评价方法与技术:概率体积法[J].地学前缘,2012,19(2):184-191. Zhang Jinchuan,Lin Lamei,Li Yuxi,et al.The method of shale gas assessment:Probability volume method[J].Earth Science Frontiers,2012,19(2):184-191.
[2]	张金川,边瑞康,荆铁亚,等.页岩气理论研究的基础意义[J].地质通报,2011,30(23):318-323. Zhang Jinchuan,Bian Ruikang,Jing Tieya,et al.Fundamental significance of gas shale theoretical research[J].Geological Bulletin of China,2011,30(23):318-323.
[3]	Ritts B D,Hanson A D,Zinniker D,et al.Lower-Middle Jurassic nonmarine source rocks and petroleum systems of the Northern Qaidam Basin,Northwest China[J].AAPG Bulletin,1999,83(12):1980-2005.
[4]	曾维特,丁文龙,张金川,等.中国西北地区页岩气形成地质条件分析[J].地质科技情报,2013,32(4):139-150. Zeng Weite,Ding Wenlong,Zhang Jinchuan,et al.Analysis of geolo-gical controls on shale gas accumulation in Northwest China[J].Geological Science and Technology Information,2013,32(4):139-150.
[5]	Jarvie D M,Hill R J,Ruble T E,et al.Unconventional shale-gas systems:The Mississippian Barnett shale of north-central Texas as one model for thermogenic shale gas assessment[J].AAPG Bulletin,2007,91(4):475-499.
[6]	何发岐,朱彤.陆相页岩气突破和建产的有利目标:以四川盆地下侏罗统为例[J].石油实验地质,2012,34(3):246-251. He Faqi,Zhu Tong.Favorable targets of breakthrough and built-up of shale gas in continental facies in Lower Jurassic,Sichuan Basin[J].Petroleum Geology & Experiment,2012,34(3):246-251.
[7]	段宏亮,钟建华,马锋,等.柴西阿尔金山前中、下侏罗统展布及油气勘探方向[J].中国石油大学学报:自然科学版,2006,30(6):13-18. Duan Hongliang,Zhong Jianhua,Ma Feng,et al.Lower-Middle Jurassic distribution and oil-gas exploration direction on the southern Altyn tagh in the western Qaidam Basin[J].Journal of China University of Petroleum,2006,30(6):13-18.
[8]	青藏油气区石油地质编写组.中国石油地质志(卷14):青海油气区[M].北京:石油工业出版社,1990. Petroleum Geology Preparation Group of Qinghai Petroleum District.Qinghai petroleum zone,China petroleum geology annals No.14[M].Beijing:Petroleum Industry Press,1990.
[9]	曾联波,金之钧,张明利,等.柴达木侏罗纪盆地性质及其演化特征[J].沉积学报,2002,20(2):288-292. Zeng Lianbo,Jin Zhijun,Zhang Mingli,et al.The Jurassic basin type and its evolution characteristic in Qaidam Basin[J].Acta Sedimentologica Sinica,2002,20(2):288-292.
[10]	张跃中,张敏,马富强,等.柴达木盆地西部阿尔金斜坡地区盆山演化与油气勘探[J].中国石油勘探,2006,11(6):26-32. Zhang Yuezhong,Zhang Min,Ma Fuqiang,et al.Basin-range evolution and oil-gas exploration in Altun Slope area of western Qaidam Basin[J].China Petroleum Exploration,2006,11(6):26-32.
[11]	李臣.柴西红沟子地区侏罗系油气成藏条件研究[J].特种油气藏,2007,14(4):40-43. Li Chen.Mechanism of oil accumulation in Jurassic reservoirs in Honggouzi, west of Qaidam Basin[J].Special Oil and Gas Reservoirs,2007,14(4):40-43.
[12]	侯读杰,包书景,毛小平,等.页岩气资源潜力评价的几个关键问题讨论[J].地球科学与环境学报,2012,34(3):7-16. Hou Dujie,Bao Shujing,Mao Xiaoping,et al.Discussion on the key issues of resource potential evaluation for shale gas[J].Journal of Earth Sciences and Environment,2012,34(3):7-16.
[13]	郝运轻,谢忠怀,周自立,等.非常规油气勘探领域泥页岩综合分类命名方案探讨[J].油气地质与采收率,2012,19(6):16-19,24. Hao Yunqing,Xie Zhonghuai,Zhou Zili,et al.Discussion on the comprehensive classification of shale in unconventional oil and gas exploration area[J].Petroleum Geology and Recovery Efficiency,2012,19(6):16-19,24.
[14]	涂乙,邹海燕,孟海平,等.页岩气评价标准与储层分类[J].石油与天然气地质,2014,35(1):153-158. Tu Yi,Zou Haiyan,Meng Haiping,et al.Evaluation criteria and classification of shale gas reservoirs[J].Oil & Gas Geology,2014,35(1):153-158.
[15]	邵龙义,李猛,李永红,等.柴达木盆地北缘侏罗系页岩气地质特征及控制因素[J].地学前缘,2014,21(4):311-322. Shao Longyi,Li Meng,Li Yonghong,et al.Geological characte-ristics and controlling factors of shale gas in the Jurassic of the northern Qaidam Basin[J].Earth Science Frontiers,2014,21(4):311-322.
[16]	朱彤,曹艳,张快.美国典型页岩气藏类型及勘探开发启示[J].石油实验地质,2014,36(6):718-724. Zhu Tong,Cao Yan,Zhang Kuai.Typical shale gas reservoirs in USA and enlightenment to exploration and development[J].Petroleum Geology & Experiment,2014,36(6):718-724.