四川盆地及周缘上奥陶统五峰组—下志留统龙马溪组页岩岩相划分

袁桃; 魏祥峰; 张汉荣; 李春燕; 魏富彬; 卢龙飞; 王强

doi:10.11781/sysydz202003371

四川盆地及周缘上奥陶统五峰组—下志留统龙马溪组页岩岩相划分

doi: 10.11781/sysydz202003371

1.
中国石化勘探分公司, 成都 610041
2.
中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126

基金项目:

国家科技重大专项“页岩气区带目标评价与勘探技术” 2017ZX05036

“重点地区页岩气富集规律与勘探评价方法” 2017ZX05036001

详细信息

作者简介:
袁桃(1987-), 男, 博士, 从事非常规油气地质及地球化学研究。E-mail: yt886439520@163.com

中图分类号: TE132.8
计量
- 文章访问数: 788
- HTML全文浏览量: 167
- PDF下载量: 169
- 被引次数: 0
出版历程
- 收稿日期: 2019-12-05
- 修回日期: 2020-04-16
- 刊出日期: 2020-05-28

Shale petrofacies division of Wufeng-Longmaxi formations in Sichuan Basin and its periphery

1.
SINOPEC Exploration Branch Company, Chengdu, Sichuan 610041, China
2.
Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

摘要

摘要: 页岩岩相对页岩气勘探"甜点"的确定具有十分重要的意义，不同专家和学者提出了不同的页岩岩相划分方案，但目前还未形成明确统一的标准。在总结前人对四川盆地及周缘上奥陶统五峰组-下志留统龙马溪组页岩岩相划分的基础上，从页岩品质和可压性的角度，开展了页岩硅质成因分析和岩相划分特征参数的研究，明确了五峰组-龙马溪组页岩岩相综合划分方案：（1）分别以钙质含量大于50%、硅质含量大于75%、黏土含量大于50%为界，划分出泥灰岩、硅质岩和黏土岩3大类岩相和页岩混合岩相区；（2）将页岩混合岩相区以页岩气储量申报标准有机质含量1%、2%和4%为界，形成了低碳、中碳、高碳和富碳页岩4种页岩岩相；以页岩常见硅、钙矿物组分含量25%和50%为界，形成了低硅/中硅/高硅+低钙/中钙页岩等5种页岩岩相。该套以有机碳-矿物组分为基础、结合硅质成因分析的岩相综合划分方案，在科学研究和实际应用中适用性强、可推广，为五峰组-龙马溪组页岩纵横向优势岩相展布规律的研究奠定了基础。
- 岩相划分 /
- 硅质成因 /
- 页岩 /
- 五峰组—龙马溪组 /
- 四川盆地
Abstract: The research of shale petrofacies is significant for the exploration of shale gas "sweet spots". Different petrographic division schemes have been proposed but no consensus has been reached. This paper has studied the criteria and boundary values of the petrographic classification reference parameters of the Upper Ordovician Wufeng-Lower Silurian Longmaxi formations in the Sichuan Basin and its periphery by considering shale quality and compressibility. (1) There are three petrofacies: marlstone, silicolites and claystones with >50% of calcium content, >75% of siliceous content and >50% of clay content, respectively. (2) Four organic petrofacies have been classified as low-carbonaceous shale, medium-carbonaceous shale, high-carbonaceous shale and enriched carbonaceous shale with 1%, 2% and 4% of organic matter as boundaries, respectively. There are five inorganic petrofacies, such as low-siliceous shale, medium-siliceous shale, high-siliceous shale, low-calcareous shale and medium-calcareous shale with 25% and 50% of silicon or calcium mineral components as boundaries, respectively. This set of petrographic comprehensive division schemes based on organic carbon-mineral components and combined with siliceous genetic analysis has strong applicability and popularization in scientific research and practical applications, which is significant for the study of the lithofacies distribution law in the Wufeng-Longmaxi formations.
- petrofacies division /
- siliceous causes /
- shale /
- Wufeng-Longmaxi formations /
- Sichuan Basin

HTML全文

图 1 四川盆地及周缘五峰组—龙马溪组沉积相

Figure 1. Sedimentary facies of Wufeng-Longmaxi formations in Sichuan Basin and its periphery

下载: 全尺寸图片幻灯片

图 2 四川盆地及周缘五峰组—龙马溪组页岩储层特征

a.低碳低硅页岩，JY1井，龙马溪组，2 338.20 m，陆源硅质碎屑，杂乱分布，正交偏光；b.笔石页岩，JY1井，龙马溪组，2 395.00 m；c.硅质放射虫，JY1井，龙马溪组，2 411.00 m；d.硅质海绵骨针，十字型，龙马溪组，渝东南地区野外剖面

Figure 2. Shale reservoir characteristics of Wufeng-Longmaxi formations in Sichuan Basin and its periphery

下载: 全尺寸图片幻灯片

图 3 四川盆地及周缘五峰组—龙马溪组页岩岩相无机分类划分方案

①低硅中钙页岩；②中硅中钙页岩；③中硅低钙页岩；④高硅中钙页岩；⑤高硅低钙页岩；⑥硅质岩；⑦泥灰岩；⑧黏土岩

Figure 3. Inorganic petrographic classification of Wufeng-Longmaxi formations in Sichuan Basin and its periphery

下载: 全尺寸图片幻灯片

图 4 四川盆地及周缘五峰组—龙马溪组页岩岩相有机分类划分方案

Figure 4. Organic petrographic classification of Wufeng-Longmaxi formations in Sichuan Basin and its periphery

下载: 全尺寸图片幻灯片

图 5 四川盆地及周缘JY1井五峰组—龙马溪组①~⑨小层页岩岩相特征

Figure 5. Shale facies characteristics of ①-⑨ layers of Wufeng-Longmaxi formations in Sichuan Basin and its periphery

下载: 全尺寸图片幻灯片

图 6 四川盆地JY1井页岩岩相划分综合柱状图

Figure 6. Composite histogram of shale facies division of well JY1 in Sichuan Basin

下载: 全尺寸图片幻灯片

参考文献(24)

[1]	ALSHAHRANI S S. Depositional environment, history, diagenesis, and petroleum geology of the Cleveland Shale Member, northeastern Ohio[D]. Bowling Green: Bowling Green State University, 2013.
[2]	LOUCKS R G, RUPPEL S C. Mississippian Barnett shale: lithofacies and depositional setting of a deep-water shale-gas succession in the Fort Worth Basin, Texas[J]. AAPG Bulletin, 2007, 91(4): 579-601. doi: 10.1306/11020606059
[3]	张梦吟, 李争, 王进, 等. 四川盆地涪陵页岩气田五峰-龙马溪组岩矿纵向差异性研究: 以JYA井为例[J]. 石油实验地质, 2018, 40(1): 64-70. doi: 10.11781/sysydz201801064 ZHANG Mengyin, LI Zheng, WANG Jin, et al. Vertical variation of rocks and minerals in Wufeng-Longmaxi formations in Fuling shale gas field, Sichuan Basin: a case study of well JYA[J]. Petroleum Geology & Experiment, 2018, 40(1): 60-70. doi: 10.11781/sysydz201801064
[4]	易积正, 王超. 四川盆地焦石坝地区龙马溪组海相页岩储层非均质性特征[J]. 石油实验地质, 2018, 40(1): 13-19. doi: 10.11781/sysydz201801013 YI Jizheng, WANG Chao. Differential pore development characteristics in various shale lithofacies of Longmaxi Formation in Jiaoshiba area, Sichuan Basin[J]. Petroleum Geology & Experiment, 2018, 40(1): 13-19. doi: 10.11781/sysydz201801013
[5]	JACOBI D J, GLADKIKH M, LECOMPTE B, et al. Integrated petrophysical evaluation of shale gas reservoirs[C]//CIPC/SPE Gas Technology Symposium 2008 Joint Conference. Calgary: Society of Petroleum Engineers, 2008.
[6]	梁超, 姜在兴, 杨镱婷, 等. 四川盆地五峰组-龙马溪组页岩岩相及储集空间特征[J]. 石油勘探与开发, 2012, 39(6): 691-698. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201206007.htm LIANG Chao, JIANG Zaixing, YANG Yiting, et al. Characteristics of shale lithofacies and reservoir space of the Wufeng-Longmaxi formation, Sichuan Basin[J]. Petroleum Exploration and Development, 2012, 39(6): 691-698. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201206007.htm
[7]	刘树根, 王世玉, 孙玮, 等. 四川盆地及其周缘五峰组-龙马溪组黑色页岩特征[J]. 成都理工大学学报(自然科学版), 2013, 40(6): 621-639. https://www.cnki.com.cn/Article/CJFDTOTAL-CDLG201306002.htm LIU Shugen, WANG Shiyu, SUN Wei, et al. Characteristics of black shale in Wufeng Formation and Longmaxi Formation in Sichuan Basin and its peripheral areas[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2013, 40(6): 621-639. https://www.cnki.com.cn/Article/CJFDTOTAL-CDLG201306002.htm
[8]	王志峰, 张元福, 梁雪莉, 等. 四川盆地五峰组-龙马溪组不同水动力成因页岩岩相特征[J]. 石油学报, 2014, 35(4): 623-632. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201404002.htm WANG Zhifeng, ZHANG Yuanfu, LIANG Xueli, et al. Characteristics of shale lithofacies formed under different hydrodynamic conditions in the Wufeng-Longmaxi Formation, Sichuan Basin[J]. Acta Petrolei Sinica, 2014, 35(4): 623-632. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201404002.htm
[9]	冉波, 刘树根, 孙玮, 等. 四川盆地及周缘下古生界五峰组-龙马溪组页岩岩相分类[J]. 地学前缘, 2016, 23(2): 96-107. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201602012.htm RAN Bo, LIU Shugen, SUN Wei, et al. Lithofacies classification of shales of the Lower Paleozoic Wufeng-Longmaxi formations in the Sichuan Basin and its surrounding areas, China[J]. Earth Science Frontiers, 2016, 23(2): 96-107. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201602012.htm
[10]	郑和荣, 高波, 彭勇民, 等. 中上扬子地区下志留统沉积演化与页岩气勘探方向[J]. 古地理学报, 2013, 15(5): 645-656. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201305011.htm ZHENG Herong, GAO Bo, PENG Yongmin, et al. Sedimentary evolution and shale gas exploration direction of the Lower Silurian in Middle-Upper Yangtze area[J]. Journal of Palaeogeography, 2013, 15(5): 645-656. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201305011.htm
[11]	蒋裕强, 宋益滔, 漆麟, 等. 中国海相页岩岩相精细划分及测井预测: 以四川盆地南部威远地区龙马溪组为例[J]. 地学前缘, 2016, 23(1): 107-118. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201601012.htm JIANG Yuqiang, SONG Yitao, QI Lin, et al. Fine lithofacies of China's marine shale and its logging prediction: a case study of the Lower Silurian Longmaxi marine shale in Weiyuan area, southern Sichuan Basin, China[J]. Earth Science Frontiers, 2016, 23(1): 107-118. https://www.cnki.com.cn/Article/CJFDTOTAL-DXQY201601012.htm
[12]	BRUNER K R, WALKER-MILANI M, SMOSNA R. Lithofacies of the devonian marcellus shale in the eastern Appalachian Basin, U.S.A. [J]. Journal of Sedimentary Research, 2015, 85(8): 937-954.
[13]	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. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201304000.htm 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. https://www.cnki.com.cn/Article/CJFDTOTAL-TDKX201304000.htm
[14]	何顺, 秦启荣, 范存辉, 等. 川东南丁山地区五峰-龙马溪组页岩储层特征及影响因素[J]. 油气藏评价与开发, 2019, 9(4): 61-67. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ201904012.htm HE Shun, QIN Qirong, FAN Cunhui, et al. Shale reservoir characte-ristics and influencing factors of Wufeng-Longmaxi formation in Dingshan area, southeast Sichuan[J]. Reservoir Evaluation and Development, 2019, 9(4): 61-67. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ201904012.htm
[15]	邹才能, 董大忠, 王社教, 等. 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, 2010, 37(6): 641-653. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201006003.htm ZOU Caineng, DONG Dazhong, WANG Shejiao, et al. Geological characteristics, formation mechanism and resource potential of shale gas in China[J]. Petroleum Exploration and Development, 2010, 37(6): 641-653. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201006003.htm
[16]	邱嘉文. 四川盆地东缘五峰-龙马溪组页岩岩相特征研究[D]. 成都: 成都理工大学, 2015. QIU Jiawen. Shale lithofacies characteristics study of Wufeng-Longmaxi formation in eastern maginal part of Sichuan Basin[D]. Chengdu: Chengdu University of Technology, 2015.
[17]	张成林, 石学文, 张鉴, 等. 四川盆地五峰组-龙马溪组页岩岩相类型及特征: 以自贡-荣昌地区为例[C]//2016年全国天然气学术年会论文集. 银川: 中国石油学会天然气专业委员会, 四川省石油学会, 2016: 658-668. ZHANG Chenglin, SHI Xuewen, ZHANG Jian, et al. Lithofacies types and characteristics of shale in Wufeng-Longmaxi formation, Sichuan Basin: a case study in Zigong-Rongchang area[C]//Proceedings of the National Natural Gas Academic Annual Conference of 2016. Sichuan: China Institute of Petroleum Natural Gas Professional Committee, 2016: 658-668.
[18]	车世琦. 测井资料用于页岩岩相划分及识别: 以涪陵气田五峰组-龙马溪组为例[J]. 岩性油气藏, 2018, 30(1): 121-132. https://www.cnki.com.cn/Article/CJFDTOTAL-YANX201801012.htm CHE Shiqi. Shale lithofacies identification and classification by using logging data: a case of Wufeng-Longmaxi formation in Fuling Gas Field, Sichuan Basin[J]. Lithologic Reservoirs, 2018, 30(1): 121-132. https://www.cnki.com.cn/Article/CJFDTOTAL-YANX201801012.htm
[19]	吴明昊, 姜在兴, 韩超. 长宁剖面龙马溪组黑色页岩岩相与层序研究[C]//2015年全国沉积学大会沉积学与非常规资源论文摘要集. 武汉: 长江大学, 2015: 260-261. WU Minghao, JIANG Zaixing, HAN Chao. Study on facies and sequence of black shale rock in Longmaxi Formation of Changning Section[C]//Abstracts of Papers on Sedimentology and Unconventional Resources at the National Conference on Sedimentology. Wuhan: Yangtze University, 2015: 260-261.
[20]	李卓, 姜振学, 唐相路, 等. 渝东南下志留统龙马溪组页岩岩相特征及其对孔隙结构的控制[J]. 地球科学, 2017, 42(7): 1116-1123. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201707007.htm LI Zhuo, JIANG Zhenxue, TANG Xianglu, et al. Lithofacies characteristics and its effect on pore structure of the marine shale in the low Silurian Longmaxi Formation, southeastern Chongqing[J]. Earth Science, 2017, 42(7): 1116-1123. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201707007.htm
[21]	李洁. 蜀南地区龙马溪组优质页岩段岩相分布及其特征研究[D]. 成都: 西南石油大学, 2018. LI Jie. Study on the lithofacies distribution and its characteristics of the high quality shale section of the Longmaxi Formation in the south Sichuan[D]. Chengdu: Southwest Petroleum University, 2018.
[22]	马乔. 川东地区页岩岩相及其控气性特征研究[D]. 成都: 西南石油大学, 2015. MA Qiao. Study on shale rock facies and air control characteristics in east Sichuan Basin[D]. Chengdu: Southwest Petroleum University, 2015.
[23]	王超, 张柏桥, 舒志国, 等. 四川盆地涪陵地区五峰组-龙马溪组海相页岩岩相类型及储层特征[J]. 石油与天然气地质, 2018, 39(3): 485-497. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201803007.htm WANG Chao, ZHANG Boqiao, SHU Zhiguo, et al. Lithofacies types and reservoir characteristics of marine shales of the Wufeng Formation-Longmaxi Formation in Fuling area, the Sichuan Basin[J]. Oil & Gas Geology, 2018, 39(3): 485-497. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT201803007.htm
[24]	赵澄林, 朱筱敏. 沉积岩石学[M]. 3版. 北京: 石油工业出版社, 2001. ZHAO Chenglin, ZHU Xiaomin. Sedimentary petrology[M]. 3rd ed. Beijing: Petroleum Industry Press, 2011.