Shale gas reservoir-forming conditions and exploration prospecting in the Cambrian Hetang Formation of southwestern Zhejiang and northeastern Jiangxi Province
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摘要:
研究目的 浙西南—赣东北地区寒武系荷塘组广泛发育暗色泥页岩，是下扬子地区页岩气调查的重点层位。目前该区勘探程度低，导致对该区页岩气成藏条件认识不清。
研究方法 通过寒武系荷塘组暗色泥页岩发育的地质背景、有机地球化学参数以及野外调查等方面研究，对该区页岩气资源潜力进行了评价，对有利区进行了优选。
研究结果 浙西南—赣东北地区寒武系荷塘组炭质硅质页岩在研究区内分布广泛，沉积厚度达35~200 m，其中在开化—常山—玉山地区的平均厚度超过50 m；有机质丰度高（1.48%~23.53%），镜质体反射率适中（2.01%~3.0%），有机质处于成熟—过成熟阶段。研究区荷塘组地层发育微孔隙、微裂缝等孔隙类型，储集性能较好。等温吸附实验测得炭质硅质页岩吸附气含量平均为5.93 kg/t，表明荷塘组炭质硅质页岩具有较好的吸附能力，有一定的吸附性。
结论 以在高热演化程度环境中找热演化程度较低的区域和在复杂的构造背景中寻找相对稳定的区域为准则，研究认为开化—常山—玉山地区寒武系荷塘组炭质硅质页岩分布厚度适中，有机质丰度高，成熟度相对较低，页岩气保存地质条件较好。
Abstract:This paper is the result of oil and gas exploration engineering.
Objective The dark shale of the Cambrian Hetang Formation widely occurred in southwestern Zhejiang and northeastern Jiangxi is the key target of shale gas exploration in the Lower Yangtze region. However, due to the present low exploration level of this interval, understanding of the shale gas accumulation conditions is still insufficient.
Methods Based on the analysis of geological background, organic geochemical indicators and field stratigraphic outcrop investigation of the dark shale, the shale gas resource potential is evaluated and the favorable areas are optimized.
Results The dark shale ranges from 35 to 200 meters in thickness with an average of over 50 meters in Jiangshan-Changshan area and is characterized by medium to high content of organic matter (TOC ranging from 1.48% to 23.53%) and high to over maturity (Ro ranging from 2.01% to 3.0%). The organic matters are highly and over highly matured. Abundant micropores and microfractures were observed in the shales, indicating the high quality shale reservoirs. The isothermal adsorption experiment shows that the carbonaceous shale has strong adsorption ability, which reaches 5.93 kg/t on average.
Conclusions It is suggested that the region of Jiangshan-Changshan area in western Zhejiang is favorable for shale gas exploration on the basis of relatively low thermal evolution of organic matter and stable stratigraphic structure preservation conditions.
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Key words:
- shale gas /
- reservoir-forming condition /
- Hetang Formation /
- oil and gas exploration engineering /
- Changshan /
- Zhejiang /
- Jiangxi
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表 2 浙西南—赣东北地区下寒武统有机碳含量(TOC)统计
Table 2. TOC data of shale from Hetang Formation in southwestern Zhejiang Province and northeastern Jiangxi Province
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表 3 浙西南—赣东北地区下寒武统有机质成熟度(Ro)统计
Table 3. Rodata of shale from Hetang Formation in southwestern Zhejiang Province and northeastern Jiangxi Province
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表 4 ZJD-1井荷塘组炭质页岩样品等温吸附实验数据
Table 4. Isothermal adsorption test data of ZJD-1 carbonaceous shale of Hetang Formation
下载: 导出CSV
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Chen Jie, Zhu Yanming, Li Wu, Chen Shangbin. 2012. Shale gas accumulation conditions and favorable area prediction of Hetang Formation in South Anhui Province of China[J]. Xinjiang Petroleum Geology, 33(4): 420-423(in Chinese with English abstract).
Chen Ke, Zhai Gangyi, Bao Shujing, Song Teng, Lin Tuo, Li Haohan, Jin Chunshuang, Meng Fanyang, Tang Xianchun And Zhang Yanlin. 2020. Tectonic evolution of the Huangling uplift and its control effect on shale gas preservation in South China[J]. Geology in China, 47(1): 161-172(in Chinese with English abstract).
Chen Xiuqi, Zhou Taofa, Li Longming. 2018. Characteristics of capping fold structure in the Southern Anhui and Western Zhejiang Regions[J]. Geotectonica et Metallogenia, 42(2): 193-210(in Chinese with English abstract).
Chen Yang, Tang Hongming, Liao Jijia, Luo Chao, Zhao Shengxian, Zheng Majia, Zhong Quan. 2022. Analysis of shale pore characteristics and controlling factors based on variation of buried depth in the Longmaxi Formation, Southern Sichuan Basin[J]. Geology in China, 49(2): 472-484(in Chinese with English abstract).
Cheng Haiyan. 2009. Evaluation of Source Rocks in the North Yellow Sea and Its Surrounding Basins[D]. Qingdao: Ocean University of China(in Chinese with English abstract).
Curtis J B. 2002. Fractured shale-gas systems[J]. AAPG Bulletin, 86(11): 1921-1938.
Feng Guoxiu, Chen Shengji. 1988. Relationship between the reflectance of bitumen amd vitrinite in rock[J]. Natural Gas Industry, 8(3): 20-25(in Chinese with English abstract).
Han Yao. 2013. Tectonic Paleogeographic Pattern and Evolution of the Eastern Section of the Jiangnan Orogen[D]. Beijing: China University of Geosciences(Beijing) (in Chinese with English abstract).
He Jinxian, Duan Yi, Zhang Xiaoli, Wu Baoxiang, Xu Li. 2011. Evaluation of hydrocarbon generation potentials of Chang-8 source rocks in Huaqing area, Ordos basin[J]. Journal of Lanzhou University(Natural Sciences), (6): 18-22, 32 (in Chinese with English abstract).
He Yu. 2015. Preliminary Study on Shale Gsa Resource Potential of the Lower Cambrian Hetang Formation in Zhejiang region[D]. Hangzhou: Zhejiang University, 23-40(in Chinese with English abstract).
Li Yuxi, Nie Haikuan, Long Pengyu. 2009. Development characteristics of organic-rich shale and strategic selection of shale gas exploration area in China[J]. Natural Gas Industry, 9(12): 115-118(in Chinese with English abstract).
Long Pengyu, Zhang Jinchuan, Jiang Wenli, Nie Haikuan, Tang Xuan, Han Shuangbiao, Xing Yawen. 2012. Analysis on pores forming features and its influence factors of reservoir well Yuye-1[J]. Journal of Central South University(Science and Technology), (10): 3954-3963(in Chinese with English abstract).
Loucks R G, Reed R M, Ruppel S C, Hammes U. 2012. Spectrum of proe types and networks in mudrocks and adescriptive classification formatrix-related mudrock pores[J]. AAPG Bulletin, 96(6): 1071-1098. doi: 10.1306/08171111061
Nie Haikuan, Zhang Jinchuan. 2012. Shale gas accumulation conditions and gas content calculation: A case study of Sichuan Basin and its periphery in the Lower Paleozoic[J]. Acta Geologica Sinica, (2): 349-361(in Chinese with English abstract).
Regional Geological Survey Team of Anhui Bureau of Geology and Mineral Resources. 1988. The Anhui Annals Cambrian System is Stratified[M]. Hefei: Anhui Science and Technology Publishing House, 5-9(in Chinese with English abstract).
Rezaee R. 2015. Fundamentals of gas shale reservoirs[M]. Hoboken: John Wiley & Sons.
Shen Zhongmin, Wei Jinhua, Zhu Hongquan, Liu Sibing, Dang Hongyan. 2009. Comparative reserch on maturity feature and maturity indicator of coal sourcerock from west Sichuan Bsin depression[J]. Journal of Mineralogy and Petrology, (4): 83-88(in Chinese with English abstract).
Soeder D J. 2018. The successful development of gas and oil resources from shales in North Aerica[J]. Journal of Petroleum Science and Engineering, 163: 399-420. doi: 10.1016/j.petrol.2017.12.084
Shuai Qin, Huang Ruicheng, Gao Qiang, Xu Shengrui, Qiu Haiou, Tang Zhiyong. 2012. Research development of analytical techniques for shale gas[J]. Rock and Mineral Analysis, (6): 931-938(in Chinese with English abstract).
Wang Ye, Qiu Nansheng, Yang Yunfeng. 2019. Thermal naturity of Wufeng-Longmaxi shale in Sichuan Basin[J]. Earth Science, 44(3): 953-971(in Chinese with English abstract).
Wang Xiang, Liu Yuhua, Zhang Min, Hu Suyun, Liu Hongjun. 2010. Conditions of formation and accumulation for shale gas[J]. Natural Gas Geoscience, 21(2): 350-356(in Chinese with English abstract).
Xu Bo, Li Jinghan, Li Xiaoge, Wang Chuanfeng, Liu Kaibo, Xu Meixiang, Jing Jiajun, Nie Ling. 2011. Evaluation of hydrocarbon accumulation conditions for shale gas from the Eastern Sag of the Liaohe Oilfield and its gas-bearing properties[J]. Acta Petrolei Sinica, 32(3): 450-458(in Chinese with English abstract).
Xu Zuxin, Guo Shaobin. 2011. Research on accumulation mechanism of shale gas[J]. Inner Mongolia Petrochemical Industry, (6): 122-124(in Chinese with English abstract).
Yan Zhaobin. 2018. Study on Sedimentary Characteristics and Geological Significance of Early Cambrian Seismic Events in western Zhejiang Province[D]. Beijing: China University of Mining and Technology (Beijing)(in Chinese with English abstract).
Yuan Yusong, Guo Tonglou, Fu Xiaoyue, Lu Qingzhi, Hu Shengbiao. 2006. Thermal history and secondary hydrocarbon generation intensity of marine source rocks in Lower Yangtze Area[J]. Geoscience, 2: 283-290(in Chinese with English abstract).
Zhang Aobo, Tang Dazhen, Tao Shu. 2019. Analysis of geological background and development situation of typical oil/gasbearing shales in China and America[J]. Petroleum Geology and Recovery Efficiency, 26(1): 37-45(in Chinese with English abstract).
Zhang Dawei, Li Yuxi, Zhang Jingchuan. 2012. National Survey and Evaluation of Shale Gas Resource Potential[M]. Beijing: Geological Publishing House, 66-69(in Chinese with English abstract).
Zhang Feiyan. 2018. Lower Yangtze Region Lower Cambrian series source rock geochemical features analysis[J]. Coal Geology of China, 30(8): 40-41(in Chinese with English abstract).
Zhang Jinchuan, Jin Zhijun, Yuan Mingsheng. 2004. Reservoiring mechanism of shale gas and its distribution[J]. Natural Gas Industry, 24(7): 15-18(in Chinese with English abstract).
Zhang Jinchuan, Xue Hui, Zhang Deming. 2003. Shale gas and its accumulation mechanism[J]. Geoscience, 17(4): 466(in Chinese with English abstract).
Zhang Wei. 2014. Research on Geological Condition and Gas-bearing of Shale Gas in Hetang Formation, Lower Cambrian in the West Region of Zhejiang Province[D]. Beijing: China University of Geoscience(Beijing), 25-45(in Chinese with English abstract).
Zou Caineng, Dong Dazhong, Wang Shejiao. 2010. Geological characteristics, formation mechanism and resource potential of shale gas in China[J]. Petroleum Exploration and Development, 37(6): 641-653(in Chinese with English abstract). doi: 10.1016/S1876-3804(11)60001-3
陈洁, 朱炎铭, 李伍, 陈尚斌. 2012. 皖南地区荷塘组页岩气成藏条件及有利区预测[J]. 新疆石油地质, 33(4): 420-423. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201204008.htm
陈科, 翟刚毅, 包书景, 宋腾, 林拓, 李浩涵, 金春爽, 孟凡洋, 唐显春, 张焱林. 2020. 南黄陵隆起构造演化及其对页岩气保存的控制作用[J]. 中国地质, 47(1): 161-172. http://geochina.cgs.gov.cn/geochina/article/abstract/20200113?st=search
陈秀其, 周涛发, 李龙明. 2018. 皖南—浙西地区盖层褶皱构造形迹特征[J]. 大地构造与成矿学, 42(2): 193-210. https://www.cnki.com.cn/Article/CJFDTOTAL-DGYK201802001.htm
陈洋, 唐洪明, 廖纪佳, 罗超, 赵圣贤, 郑马嘉, 钟权. 2022. 基于埋深变化的川南龙马溪组页岩孔隙特征及控制因素分析[J]. 中国地质, 49(2): 472-484. http://geochina.cgs.gov.cn/geochina/article/abstract/20220209?st=search
成海燕. 2009. 北黄海及其周边盆地烃源岩评价研究[D]. 青岛: 中国海洋大学.
韩瑶. 2013. 江南造山带东段构造古地理格局及演化[D]. 中国地质大学(北京).
丰国秀, 陈盛吉. 1988. 岩石中沥青反射率与镜质体反射率之间的关系[J]. 天然气工业, 8(3): 20-25. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG198803006.htm
何金先, 段毅, 张晓丽, 吴保祥, 徐丽. 2011. 鄂尔多斯盆地华庆地区延长组长8烃源岩生烃潜力评价[J]. 兰州大学学报(自然科学版), (6): 18-22, 32. https://www.cnki.com.cn/Article/CJFDTOTAL-LDZK201106007.htm
何钰. 2015. 浙江地区下寒武统荷塘组页岩气资源前景初探[D]. 杭州: 浙江大学, 23-40.
李玉喜, 聂海宽, 龙鹏宇. 2009. 我国富含有机质泥页岩发育特点与页岩气战略选区[J]. 天然气工业, 9(12): 115-118. doi: 10.3787/j.issn.1000-0976.2009.12.034
龙鹏宇, 张金川, 姜文利, 聂海宽, 唐玄, 韩双彪, 邢雅文. 2012. 渝页1井储层孔隙发育特征及其影响因素分析[J]. 中南大学学报(自然科学版), (10): 3954-3963. https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGD201210032.htm
聂海宽, 张金川. 2012. 页岩气聚集条件及含气量计算: 以四川盆地及其周缘下古生界为例[J]. 地质学报, (2): 349-361. doi: 10.3969/j.issn.0001-5717.2012.02.013
安徽省地质矿产局区域地质调查队. 1988. 安徽省地层志寒武系分层[M]. 合肥: 安徽科学技术出版社, 5-9.
沈忠民, 魏金花, 朱宏权, 刘四兵, 党洪艳. 2009. 川西坳陷煤系烃源岩成熟度特征及成熟度指标对比研究[J]. 矿物岩石, (4): 83-88. doi: 10.3969/j.issn.1001-6872.2009.04.012
帅琴, 黄瑞成, 高强, 徐生瑞, 邱海鸥, 汤志勇. 2012. 页岩气实验测试技术现状与研究进展[J]. 岩矿测试, (6): 931-938. doi: 10.3969/j.issn.0254-5357.2012.06.003
王晔, 邱楠生, 仰云峰. 2019. 四川盆地五峰—龙马溪组页岩成熟度研究[J]. 地球科学, 44(3): 953-971. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201903022.htm
王祥, 刘玉华, 张敏, 胡素云, 刘红俊. 2010. 页岩气形成条件及成藏影响因素研究[J]. 天然气地球科学, 21(2): 350-356. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201002028.htm
严兆彬. 2018. 浙西早寒武世地震事件沉积特征与地质意义研究[D]. 中国矿业大学(北京).
徐波, 李敬含, 李晓革. 2011. 辽河油田东部凹陷页岩气成藏条件及含气性评价[J]. 石油学报, 32(3): 450-458. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201103010.htm
徐祖新, 郭少斌. 2011. 页岩气成藏机理研究[J]. 内蒙古石油化工, (6): 122-124. doi: 10.3969/j.issn.1006-7981.2011.06.054
袁玉松, 郭彤楼, 付孝悦, 卢庆治, 胡圣标. 2006. 下扬子地区热历史与海相烃源岩二次生烃潜力[J]. 现代地质, (2): 283-290. doi: 10.3969/j.issn.1000-8527.2006.02.012
张奥博, 汤达祯, 陶树. 2019. 中美典型含油气页岩地质特征及开发现状[J]. 油气地质与采收率, 26(1): 37-45. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS201901004.htm
张大伟, 李玉喜, 张金川. 2012. 全国页岩气资源潜力调查评价[M]. 北京: 地质出版社, 66-69.
张飞燕. 2018. 下扬子地区下寒武统烃源岩地球化学特征分析[J]. 中国煤炭地质, 8, 30(8): 40-41. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGMT201808008.htm
张金川, 薛会, 张德明. 2003. 页岩气及其成藏机理[J]. 现代地质, 17(4): 466. doi: 10.3969/j.issn.1000-8527.2003.04.019
张金川, 金之钧, 袁明生. 2004. 页岩气成藏机理和分布[J]. 天然气工业, 24(7): 15-18. doi: 10.3321/j.issn:1000-0976.2004.07.005
章伟. 2014. 浙西地区下寒武统荷塘组页岩气地质条件及含气性研究[D]. 中国地质大学(北京), 25-45.
邹才能, 董大忠, 王社教. 2010. 中国页岩气形成机理、地质特征及资源潜力[J]. 石油勘探与开发, 37(6): 641-653. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201006003.htm
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