滇东北木杆向斜奥陶系五峰组—志留系龙马溪组页岩气资源潜力评价

杨平; 汪正江; 余谦; 刘伟; 熊国庆; 刘家洪; 何江林

doi:10.11781/sysydz201905638

滇东北木杆向斜奥陶系五峰组—志留系龙马溪组页岩气资源潜力评价

doi: 10.11781/sysydz201905638

杨平^1,2,
汪正江^1,2,
余谦^1,2,
刘伟^1,2,
熊国庆^1,2,
刘家洪^1,2,
何江林^1,2

1. 中国地质调查局成都地质调查中心, 成都 610081;
2. 自然资源部沉积盆地与油气资源重点实验室, 成都 610081

基金项目:

中国地质调查局项目（DD20160193、DD20160176、12120114071401）、国家重大科技专项（2016ZX05034004）和国家自然科学基金（41772126）联合资助。

详细信息

作者简介:
杨平(1981-),男,高级工程师,从事页岩气调查与研究。E-mail:yping0@163.com。

中图分类号: TE132.2
计量
- 文章访问数: 862
- HTML全文浏览量: 110
- PDF下载量: 116
- 被引次数: 0
出版历程
- 收稿日期: 2019-03-21
- 修回日期: 2019-07-08
- 刊出日期: 2019-09-28

Evaluation of shale gas potential in Ordovician Wufeng-Silurian Longmaxi formations, Mugan syncline, northeastern Yunnan

1. Chengdu Center, China Geological Survey, Chengdu, Sichuan 610081, China;
2. Key Laboratory of Sedimentary Basin and Oil and Gas Resources, Ministry of Natural Resources, Chengdu, Sichuan 610081, China

摘要

摘要: 基于Xd2井和Ydd3井奥陶系五峰组—志留系龙马溪组岩心测试结果，结合邻区资料，总结滇东北地区木杆向斜黑色页岩岩性、分布规律、有机地球化学、储层及含气性特征，评价木杆向斜页岩气资源潜力。木杆向斜五峰组—龙马溪组一段主要为深水陆棚相黑色碳质泥页岩和粉砂质泥岩，其中龙马溪组一段可以分为1亚段、2亚段和3亚段，页岩优质段（总有机碳含量大于2.0%）厚40～70 m，平均有机碳含量为3.00%～3.61%，干酪根碳同位素值-30.21‰～-27.01‰，有机质含量高、类型好，等效镜质体反射率（VR_o）为2.73%～2.79%。矿物组成具有较低含量的石英和长石，较高含量的碳酸盐岩和黄铁矿，由下至上，石英、碳酸盐岩和黄铁矿含量降低，长石和黏土含量增加。页岩孔隙度为2.39%～8.53%，横向渗透率（0.000 01～15.0）×10^-3 μm²，以中等孔隙为主，低—特低渗透率，孔隙类型主要为有机质演化形成的介孔和微孔。木杆向斜五峰组—龙马溪组页岩埋深约1 500～2 300 m，含气面积125.55 km²，资源量999.93×10⁸ m³，主力含气层段位于五峰组上段—龙一段1亚段，厚度38～43 m，平均总含气量2.95～4.31 m³/t。木杆向斜五峰组—龙马溪组页岩厚度大，横向上和纵向上连续分布，埋藏适中，具有良好的页岩气资源潜力。
- 页岩气 /
- 资源潜力 /
- 五峰组—龙马溪组 /
- 木杆向斜 /
- 滇东北
Abstract: Shale gas potential was evaluated according to wells Xd2 and Ydd3 in the Ordovician Wufeng-Silurian Longmaxi formations in the Mugan syncline of the northeastern Yunnan, using core test results, data from the neighboring area, black shale lithology, distribution, organic geochemistry, reservoir and gas bearing characteristics. The Wufeng Formation to the first member of Longmaxi Formation is mainly composed of deep-water shelf black carbonaceous shale and silty mudstones. The first member of Longmaxi Formation can be divided into the 1st, 2nd and 3rd submembers. The high-quality shale section with a total organic carbon content greater than 2.0% is 40-70 m thick, and the average organic carbon content is 3.00%-3.61%. The kerogen carbon isotope is -30.21‰ to -27.01‰. The higher the organic matter content, the better organic matter type is. The equivalent vitrinite reflectance (VR_o) is 2.73%-2.79%. The shale has limited quartz and feldspar, but more carbonate and pyrite. From bottom to top, quartz, carbonate and pyrite contents decrease, while feldspar and clay contents increase. The shale porosity is 2.38%-8.53%, and the transverse permeability is (0.000 01-15.0)×10^-3 μm², indicating medium porosity and low to extra low permeability. Mesopores and micropores formed by organic matter evolution are dominant. The Wufeng-Longmaxi shale is 1 500-2 300 m deep in the Mugan syncline. The gas-bearing area is 125.55 km², and the resource is 100×10⁹ m³. The main gas-bearing interval is located in the upper member of Wufeng Formation to the first member of Longmaxi Formation, with a thickness of 38-43 m and an average total gas content of 2.95-4.31 m³/t. The Wufeng-Longmaxi shale in the Mugan syncline has a large thickness, a continuous distribution in the horizontal and vertical directions, and a moderate burial depth, which show a great resource potential.
- shale gas /
- resource potential /
- Wufeng-Longmaxi formations /
- Mugan syncline /
- northeastern Yunnan

HTML全文

参考文献(23)

[1]	郭旭升,胡东风,文治东,等.四川盆地及周缘下古生界海相页岩气富集高产主控因素:以焦石坝地区五峰组-龙马溪组为例[J].中国地质,2014,41(3):893-901. GUO Xusheng,HU Dongfeng,WEN Zhidong,et al.Major factors controlling the accumulation and high productivity in marine shale gas in the Lower Paleozoic of Sichuan Basin and its periphery:a case study of the Wufeng-Longmaxi Formation of Jiaoshiba area[J].Geology in China,2014,41(3):893-901.
[2]	郭彤楼,刘若冰.复杂构造区高演化程度海相页岩气勘探突破的启示:以四川盆地东部盆缘JY1井为例[J].天然气地球科学,2013,24(4):643-651. GUO Tonglou,LIU Ruobing.Implications from marine shale gas exploration breakthrough in complicated structural area at high thermal stage:taking Longmaxi Formation in well JY1 as an example[J].Natural Gas Geoscience,2013,24(4):643-651.
[3]	胡东风,张汉荣,倪楷,等.四川盆地东南缘海相页岩气保存条件及其主控因素[J].天然气工业,2014,34(6):17-23. HU Dongfeng,ZHANG Hanrong,NI Kai,et al.Main controlling factors for gas preservation conditions of marine shales in south eastern margins of the Sichuan Basin[J].Natural Gas Industry,2014,34(6):17-23.
[4]	董大忠,施振生,管全中,等.四川盆地五峰组-龙马溪组页岩气勘探进展、挑战与前景[J].天然气工业,2018,38(4):67-76. DONG Dazhong,SHI Zhensheng,GUAN Quanzhong,et al.Progress,challenges and prospects of shale gas exploration in the Wufeng-Longmaxi reservoirs in the Sichuan Basin[J].Natural Gas Industry,2018,38(4):67-76.
[5]	牟传龙,葛祥英,周恳恳,等.川西南晚奥陶世五峰期岩相古地理[J].中国地质,2015,42(1):192-198. MOU Chuanlong,GE Xiangying,ZHOU Kenken,et al.Lithofacies palaeogeography in Late Ordovician Wufeng age in southwestern Sichuan[J].Geology in China,2015,42(1):192-198.
[6]	杨平,谢渊,王传尚,等.雪峰山西侧上奥陶统五峰组烃源岩特征及油气地质意义[J].天然气工业,2012,32(12):11-16. YANG Ping,XIE Yuan,WANG Chuanshang,et al.Features and petroleum geologic significances of source rocks in the Upper Ordovician Wufeng Formation to the west of Xuefeng Mountain[J].Natural Gas Industry,2012,32(12):11-16.
[7]	翟刚毅,包书景,庞飞,等.贵州遵义地区安场向斜"四层楼"页岩油气成藏模式研究[J].中国地质,2017,44(1):1-12. ZHAI Gangyi,BAO Shujing,PANG Fei,et al.Peservoir-forming pattern of "four-storey" hydrocarbon accumulation in Anchang syncline of northern Guizhou Province[J].Geology in China,2017,44(1):1-12.
[8]	葛明娜,庞飞,包书景.贵州遵义五峰组-龙马溪组页岩微观孔隙特征及其对含气性控制:以安页1井为例[J].石油实验地质,2019,41(1):23-30. GE Mingna,PANG Fei,BAO Shujing.Micro pore characteristics of Wufeng-Longmaxi shale and their control on gas content:a case study of well Anye 1 in Zunyi area,Guizhou province[J].Petroleum Geology & Experiment,2019,41(1):23-30.
[9]	陈孝红,张保民,张国涛,等.湖北宜昌地区奥陶系五峰组-志留系龙马溪组获页岩气高产工业气流[J].中国地质,2018,45(1):199-200. CHEN Xiaohong,ZHANG Baomin,ZHANG Guotao,et al.High shale gas industry flow obtained from the Ordovician Wufeng Formation and the Silurian Longmaxi Formation of Yichang area,Hubei Province[J].Geology in China,2018,45(1):199-200.
[10]	白志强,刘树根,孙玮,等.四川盆地西南雷波地区五峰组-龙马溪组页岩储层特征[J].成都理工大学学报(自然科学版),2013,40(5):521-531. BAI Zhiqiang,LIU Shugen,SUN Wei,et al.Reservoir characteristics of Wufeng Formation-Longmaxi Formation in southwest of Sichuan Basin,China[J].Journal of Chengdu University of Technology (Science & Technology Edition),2013,40(5):521-531.
[11]	何江林,刘伟,杨平,等.四川盆地西南缘五峰组-龙马溪组页岩气形成条件与有利区优选[J].沉积与特提斯地质,2017,37(3):50-58. HE Jianglin,LIU Wei,YANG Ping,et al.Genetic conditions of the shale gas and delineation of the favorable areas in the Wufeng Formation-Longmaxi Formation on the southwestern margin of the Sichuan Basin[J].Sedimentary Geology and Tethyan Geology,2017,37(3):50-58.
[12]	李双建,李建明,周雁,等.四川盆地东南缘中新生代构造隆升的裂变径迹证据[J].岩石矿物学杂志,2011,30(2):225-233. LI Shuangjian,LI Jianming,ZHOU Yan,et al.Fission track evidence for Mesozoic-Cenozoic uplifting in the southeastern margin of Sichuan Basin[J].Acta Petrologica et Mineralogica,2011,30(2):225-233.
[13]	袁玉松,孙冬胜,周雁,等.中上扬子地区印支期以来抬升剥蚀时限的确定[J].地球物理学报,2010,53(2):362-369. YUAN Yusong,SUN Dongsheng,ZHOU Yan,et al.Determination of onset of uplifting for the Mid-Upper Yangtze area after Indosinian Event[J].Chinese Journal of Geophysics,2010,53(2):362-369.
[14]	何江林,王剑,余谦,等.外源补给型页岩气的发现及油气地质意义[J].石油学报,2018,39(1):12-22. HE Jianglin,WANG Jian,YU Qian,et al.Discovery of exogenous type shale gas and its geological significance to hydrocarbon exploration[J].Acta Petrolei Sinica,2018,39(1):12-22.
[15]	聂海宽,汪虎,何治亮,等.常压页岩气形成机制、分布规律及勘探前景:以四川盆地及其周缘五峰组-龙马溪组为例[J].石油学报,2019,40(2):131-143. NIE Haikuan,WANG Hu,HE Zhiliang,et al.Formation mechanism,distribution and exploration prospect of normal pressure shale gas reservoir:a case study of Wufeng Formation-Longmaxi Formation in Sichuan Basin and its periphery[J].Acta Petrolei Sinica,2019,40(2):131-143.
[16]	杨平,汪正江,谢渊,等.黔北下寒武统牛蹄塘组烃源岩的生物标志物特征和沉积环境[J].地质通报,2012,31(11):1910-1921. YANG Ping,WANG Zhengjiang,XIE Yuan,et al.The biomarker characteristics and sedimentary environment of Lower Cambrian Niutitang Formation source rock in northern Guizhou[J].Geological Bulletin of China,2012,31(11):1910-1921.
[17]	刘德汉,史继扬.高演化碳酸盐烃源岩非常规评价方法探讨[J].石油勘探与开发,1994,21(3):113-115. LIU Dehan,SHI Jiyang.Discussion on unconventional evaluation method of high evolution carbonate source rock[J].Petroleum Exploration and Development,1994,21(3):113-115.
[18]	邱振,邹才能,李熙喆,等.论笔石对页岩气源储的贡献:以华南地区五峰组-龙马溪组笔石页岩为例[J].天然气地球科学,2018,29(5):606-615. QIU Zhen,ZOU Caineng,LI Xizhe,et al.Discussion on the contribution of graptolite to organic enrichment and reservoir of gas shale:a case study of the Wufeng-Longmaxi formations in South China[J].Natural Gas Geoscience,2018,29(5):606-615.
[19]	刘尧文,王进,张梦吟,等.四川盆地涪陵地区五峰-龙马溪组页岩气层孔隙特征及对开发的启示[J].石油实验地质,2018,40(1):44-50. LIU Yaowen,WANG Jin,ZHANG Mengyin,et al.Pore features of shale gas layer in Wufeng-Longmaxi formations in Fuling area of Sichuan Basin and the application to development[J].Petroleum Geology & Experiment,2018,40(1):44-50.
[20]	陈尚斌,朱炎铭,王红岩,等.川南龙马溪组页岩气储层纳米孔隙结构特征及其成藏意义[J].煤炭学报,2012,37(3):438-444. CHEN Shangbin,ZHU Yanming,WANG Hongyan,et al.Structure characteristics and accumulation significance of nanopores in Longmaxi shale gas reservoir in the southern Sichuan Basin[J].Journal of China Coal Society,2012,37(3):438-444.
[21]	赵佩,李贤庆,田兴旺,等.川南地区龙马溪组页岩气储层微孔隙结构特征[J].天然气地球科学,2014,25(6):947-956. ZHAO Pei,LI Xianqing,TIAN Xingwang,et al.Study on micropore structure characteristics of Longmaxi Formation shale gas reservoirs in the southern Sichuan Basin[J].Natural Gas Geoscience,2014,25(6):947-956.
[22]	薛冰,张金川,唐玄,等.黔西北龙马溪组页岩微观孔隙结构及储气特征[J].石油学报,2015,36(2):138-149. XUE Bing,ZHANG Jinchuan,TANG Xuan,et al.Characteristics of microscopic pore and gas accumulation on shale in Longmaxi Formation,northwest Guizhou[J].Acta Petrolei Sinica,2015,36(2):138-149.
[23]	严继民,张启元.吸附与凝聚:固体的表面与孔[M].北京:科学出版社,1979. YAN Jimin,ZHANG Qiyuan.Adrorption and condensation:the surface and pore of solid[M].Beijing:Science Press,1979.