海陆过渡相页岩地球化学及生烃演化特征——以鄂尔多斯盆地东缘大宁—吉县地区下二叠统山西组为例

张洋洋; 李勇; 张雪莹; 罗力元; 何清波; 李树新; 刘向君; 李翔; 李星涛; 杨强; 陈世加; 路俊刚; 张楠; 刘喆; 余锐阳; 马海川

doi:10.11781/sysydz2025040857

文章导航 > 石油实验地质 > 2025 > 47(4): 857-871

张洋洋, 李勇, 张雪莹, 罗力元, 何清波, 李树新, 刘向君, 李翔, 李星涛, 杨强, 陈世加, 路俊刚, 张楠, 刘喆, 余锐阳, 马海川. 海陆过渡相页岩地球化学及生烃演化特征——以鄂尔多斯盆地东缘大宁—吉县地区下二叠统山西组为例[J]. 石油实验地质, 2025, 47(4): 857-871. doi: 10.11781/sysydz2025040857

引用本文:

ZHANG Yangyang, LI Yong, ZHANG Xueying, LUO Liyuan, HE Qingbo, LI Shuxin, LIU Xiangjun, LI Xiang, LI Xingtao, YANG Qiang, CHEN Shijia, LU Jungang, ZHANG Nan, LIU Zhe, YU Ruiyang, MA Haichuan. Geochemical and hydrocarbon generation evolution characteristics of marine-continental transitional facies shale: a case study of the Lower Permian Shanxi Formation in the Daning-Jixian area, eastern margin of Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2025, 47(4): 857-871. doi: 10.11781/sysydz2025040857

Citation:

ZHANG Yangyang, LI Yong, ZHANG Xueying, LUO Liyuan, HE Qingbo, LI Shuxin, LIU Xiangjun, LI Xiang, LI Xingtao, YANG Qiang, CHEN Shijia, LU Jungang, ZHANG Nan, LIU Zhe, YU Ruiyang, MA Haichuan. Geochemical and hydrocarbon generation evolution characteristics of marine-continental transitional facies shale: a case study of the Lower Permian Shanxi Formation in the Daning-Jixian area, eastern margin of Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2025, 47(4): 857-871. doi: 10.11781/sysydz2025040857

引用本文:

Citation:

ZHANG Yangyang, LI Yong, ZHANG Xueying, LUO Liyuan, HE Qingbo, LI Shuxin, LIU Xiangjun, LI Xiang, LI Xingtao, YANG Qiang, CHEN Shijia, LU Jungang, ZHANG Nan, LIU Zhe, YU Ruiyang, MA Haichuan. Geochemical and hydrocarbon generation evolution characteristics of marine-continental transitional facies shale: a case study of the Lower Permian Shanxi Formation in the Daning-Jixian area, eastern margin of Ordos Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2025, 47(4): 857-871. doi: 10.11781/sysydz2025040857

海陆过渡相页岩地球化学及生烃演化特征——以鄂尔多斯盆地东缘大宁—吉县地区下二叠统山西组为例

doi: 10.11781/sysydz2025040857

张洋洋^{1, 2, 3,},
李勇^{1, 2, 3, 4, ,},
张雪莹⁵,
罗力元³,
何清波^{4, 6},
李树新⁷,
刘向君¹,
李翔⁷,
李星涛⁷,
杨强⁸,
陈世加^{1, 2, 3},
路俊刚^{1, 2, 3},
张楠³,
刘喆³,
余锐阳³,
马海川³

1.
西南石油大学油气藏地质及开发工程全国重点实验室, 成都 610500
2.
天然气地质四川省重点实验室, 成都 610500
3.
西南石油大学地球科学与技术学院, 成都 610500
4.
自然资源部复杂构造区非常规天然气评价与开发重点实验室, 贵阳 550001
5.
中国石油西南油气田分公司重庆气矿, 重庆 401120
6.
贵州省油气勘查开发工程研究院, 贵阳 550001
7.
中国石油煤层气有限责任公司, 北京 100028
8.
中国石油西南油气田分公司勘探开发研究院, 成都 610041

基金项目:

中国石油—西南石油大学创新联合体科技合作项目 2020CX030000

中国石油科技创新基金 2022DQ02-0105

自然资源部复杂构造区非常规天然气评价与开发重点实验室开放课题基金 NRNG-202401

详细信息

作者简介:
张洋洋(1998—)，男，博士生，从事非常规油气地质与油气地球化学研究。E-mail: yyzhang1214@163.com

通讯作者:
李勇(1993—)，男，博士，副研究员，从事非常规油气地质与油气地球化学的研究和教学工作。E-mail: 1041257867@qq.com

中图分类号: TE122.1
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出版历程
- 收稿日期: 2024-09-19
- 修回日期: 2025-06-11
- 刊出日期: 2025-07-28

Geochemical and hydrocarbon generation evolution characteristics of marine-continental transitional facies shale: a case study of the Lower Permian Shanxi Formation in the Daning-Jixian area, eastern margin of Ordos Basin

ZHANG Yangyang^{1, 2, 3
,},
LI Yong^{1, 2, 3, 4
, ,},
ZHANG Xueying⁵,
LUO Liyuan³,
HE Qingbo^{4, 6},
LI Shuxin⁷,
LIU Xiangjun¹,
LI Xiang⁷,
LI Xingtao⁷,
YANG Qiang⁸,
CHEN Shijia^{1, 2, 3},
LU Jungang^{1, 2, 3},
ZHANG Nan³,
LIU Zhe³,
YU Ruiyang³,
MA Haichuan³

1.
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
2.
Sichuan Provincial Key Laboratory of Natural Gas Geology, Chengdu, Sichuan 610500, China
3.
School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China
4.
Key Laboratory of Unconventional Natural Gas Evaluation and Development in Complex Tectonic Areas, Ministry of Natural Resources, Guiyang, Guizhou 550001, China
5.
Chongqing Gas Mine, PetroChina Southwest Oil & Gasfield Company, Chongqing 401120, China
6.
Guizhou Institute of Petroleum Exploration and Development Engineering, Guiyang, Guizhou 550001, China
7.
PetroChina Coalbed Methane Company Limited, Beijing 100028, China
8.
Exploration and Development Research Institute, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan 610041, China

摘要

摘要: 为明确海陆过渡相页岩地球化学和生烃演化特征，以鄂尔多斯盆地东缘大宁—吉县地区下二叠统山西组页岩为研究对象，通过总有机碳(TOC)、岩石热解、干酪根碳同位素、有机显微组分、古生物、镜质体反射率(R_o)、生烃热模拟等分析测试，开展了山西组页岩矿物组成、成烃母质、生烃潜力、生烃动力学过程和累计产气率计算模型等研究。研究结果表明：(1)大宁—吉县地区山西组页岩矿物组成以石英和黏土矿物为主，平均TOC含量为4.06%，有机显微组分以腐殖无定形体和镜质组为主，平均R_o为2.61%，整体上表现为高有机质丰度、腐殖型有机质、过成熟演化阶段的特征，具有较高的生气潜力。(2)封闭体系下，山西组页岩气态烃C₁和C_1-5最大产率分别为138.74和139.22 mg/g；半封闭体系下，山西组页岩气态烃C₁和C_1-5的最大产率分别为86.51和102.59 mg/g，远低于封闭条件下气态烃最大产率。(3)山西组页岩气态烃产物C₁和C_1-5的活化能均出现了两个明显的高峰，分别代表了干酪根降解和重烃二次裂解，C₁活化能两个高峰分别为56 kcal/mol(26.53%)和61 kcal/mol(30.10%)，频率因子为2.0×10¹¹ S^-1，C_1-5活化能两个高峰分别为56 kcal/mol(28.45%)和61 kcal/mol(19.18%)，频率因子为2.2×10¹¹ S^-1。(4)山西组海陆过渡相页岩累积产气率与R_o的变化趋势具有y=1/(1+e^-x)的函数特征，并建立了两种体系下的累计产气率计算模型。研究成果为海陆过渡相页岩气资源量计算和有利区预测提供了重要的理论支持。
- 海陆过渡相 /
- 页岩气 /
- 地球化学特征 /
- 生烃演化特征 /
- 山西组 /
- 下二叠统 /
- 鄂尔多斯盆地
Abstract: To clarify the geochemical and hydrocarbon evolution characteristics of marine-continental transitional facies shale, the shale in the Lower Permian Shanxi Formation of the Daning-Jixian area in the eastern margin of the Ordos Basin was taken as the research object. By analyzing and determining total organic carbon (TOC) content, rock pyrolysis, kerogen carbon isotopes, maceral composition, paleontology, vitrinite reflectance (R_o), and conducting hydrocarbon generation thermal simulations, the study investigated the mineral composition, hydrocarbon source, generation potential, generation kinetics, and cumulative gas production rate calculation models of the shale in the Shanxi Formation. The results showed that: (1) The mineral composition of the shale in the Shanxi Formation of the Daning-Jixian area was mainly composed of quartz and clay minerals, with an average TOC content of 4.06%. The organic macerals were mainly composed of humic amorphous bodies and vitrinites, with an average R_o value of 2.61%. Overall, the shale was characterized by high organic matter abundance, dominated by humic-type organic matter, and was at an overmature stage of evolution, demonstrating high gas generation potential. (2) In a closed system, the maximum yields of gaseous hydrocarbons C₁ and C_1-5 from the shale in the Shanxi Formation were 138.74 and 139.22 mg/g, respectively. In a semi-closed system, the maximum yields of C₁ and C_1-5 were 86.51 and 102.59 mg/g, respectively, which were significantly lower than the maximum yields under closed conditions. (3) The activation energy for the generation of gaseous hydrocarbon C₁ and C_1-5 from the shale in the Shanxi Formation exhibited two distinct peaks, representing kerogen degradation and secondary cracking of heavy hydrocarbons. For C₁, the two peaks of activation energy were 56 kcal/mol (26.53%) and 61 kcal/mol (30.10%), with a frequency factor of 2.0×10¹¹ S^-1. For C_1-5, the two peaks of activation energy were 56 kcal/mol (28.45%) and 61 kcal/mol (19.18%), with a frequency factor of 2.2×10¹¹ S^-1. (4) The variation trend between cumulative gas production rate and R_o for the marine-continental transitional facies shale in the Shanxi Formation followed the pattern of a logistic function described by y=1/(1+e^-x). Cumulative gas production rate calculation models for both the closed and semi-closed systems were established. The research results provide important theoretical support for the calculation of shale gas resources in marine-continental transitional facies and offer insights into favorable zone prediction.
- marine-continental transitional facies /
- shale gas /
- geochemical characteristics /
- hydrocarbon generation evolution characteristics /
- Shanxi Formation /
- Lower Permian /
- Ordos Basin
注释:

利益冲突声明/Conflict of Interests

所有作者声明不存在利益冲突。

All authors declare no relevant conflict of interests.

作者贡献/Authors’Contributions

张洋洋、李勇、何清波、刘向君、陈世加、路俊刚参与实验设计；罗力元、何清波、李树新、李翔、李星涛完成实验操作；张洋洋、李勇、罗力元参与论文写作和修改；张雪莹和杨强在论文修改方面提供了有益的参考；张楠、刘喆、余锐阳、马海川参与数据整理与绘图。所有作者均阅读并同意最终稿件的提交。

The study was designed by ZHANG Yangyang, LI Yong, HE Qingbo, LIU Xiangjun, CHEN Shijia, and LU Jungang. The experimental operation was completed by LUO Liyuan, HE Qingbo, LI Shuxin, LI Xiang, and LI Xingtao. The manuscript was drafted and revised by ZHANG Yangyang, LI Yong, and LUO Liyuan. ZHANG Xueying and YANG Qiang provided useful references in the revision of the paper. ZHANG Nan, LIU Zhe, YU Ruiyang, and MA Haichuan participated in data collation and figure mapping. All authors have read the final version of the paper and consented to its submission.

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图 1 鄂尔多斯盆地构造分区、研究区地理位置及地层综合柱状图

a.鄂尔多斯盆地构造分区图(根据参考文献[37]修改)；b.研究区构造地形图(根据参考文献[39]修改)；c.鄂尔多斯盆地上石炭统—中二叠统地层综合柱状图(根据参考文献[18]修改)。

Figure 1. Structural zoning, geographical location of study area, and composite stratigraphic column of Ordos Basin

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图 2 鄂尔多斯盆地下二叠统山西组海陆过渡相页岩全岩矿物组成和黏土矿物组成特征

a.山西组页岩全岩矿物组成特征；b.山西组页岩和海相页岩矿物组成端元，海相页岩数据根据参考文献[44]和^[45]修改；c.山西组页岩黏土矿物组成特征。

Figure 2. Whole-rock and clay mineral composition characteristics of marine-continental transitional facies shale in Lower Permian Shanxi Formation, Ordos Basin

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图 3 鄂尔多斯盆地东缘大宁—吉县地区下二叠统山西组海陆过渡相页岩和煤有机质丰度评价

Figure 3. Organic matter abundance evaluation of shale and coal in marine-continental transitional facies of Lower Permian Shanxi Formation, Daning-Jixian area, eastern margin of Ordos Basin

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图 4 鄂尔多斯盆地东缘大宁—吉县地区下二叠统山西组海陆过渡相页岩和煤有机质类型评价

a.干酪根显微组分镜下特征，发育腐泥(殖)无定形体、镜质组及惰质组；b.干酪根显微组分镜下特征，发育镜质组及惰质组；c.山西组页岩和煤显微组分端元图；d.山西组页岩干酪根碳同位素和类型指数有机质类型综合评价图。

Figure 4. Organic matter type evaluation of shale and coal in marine-continental transitional facies of Lower Permian Shanxi Formation, Daning-Jixian area, eastern margin of Ordos Basin

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图 5 鄂尔多斯盆地保德扒楼沟野外露头下二叠统山西组页岩古生物发育特征

Figure 5. Paleontological development characteristics of shale from Lower Permian Shanxi Formation in an field outcrop of Palougou village, Baode County, Ordos Basin

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图 6 鄂尔多斯盆地东缘大宁—吉县地区下二叠统山西组海陆过渡相页岩镜质体反射率(R_o)和最高热解峰温度(T_max)分布

Figure 6. Distribution of vitrinite reflectance (R_o) and maximum pyrolysis peak temperature (T_max) of marine-continental transitional facies shale in Lower Permian Shanxi Formation, Daning-Jixian area, eastern margin of Ordos Basin

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图 7 鄂尔多斯盆地DJ51井埋藏史、古地温史及热演化史恢复

Figure 7. Burial history, paleogeothermal history, and thermal evolution history restoration of well DJ51 in Ordos Basin

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图 8 鄂尔多斯盆地下二叠统山西组海陆过渡相页岩不同体系下热模拟产烃率特征

a.封闭体系下气态烃C₁产率；b.封闭体系下气态烃C_2-5产率；c.封闭体系下气态烃C_1-5产率；d.半封闭体系下C₁、C_1-5累积产率；e.半封闭体系下C_2-5、C₂、C₃、C_4-5累积产率；f.半封闭体系下总油、排出油、滞留油累积产率。

Figure 8. Characteristics of hydrocarbon generation rate in thermal simulation experiments for different systems of marine-continental transitional facies shale in Lower Permian Shanxi Formation, Ordos Basin

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图 9 鄂尔多斯盆地半封闭体系下页岩有机质地球化学特征参数随R_o的变化趋势

Figure 9. Variation trends of geochemical characteristic parameters of shale organic matter with R_o in semi-closed system of Ordos Basin

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图 10 鄂尔多斯盆地下二叠统山西组页岩生烃动力学参数、实验实测与计算产烃率对比

Figure 10. Comparison of hydrocarbon generation kinetic parameters, experimentally measured and calculated hydrocarbon generation rates of shale in Lower Permian Shanxi Formation, Ordos Basin

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图 11 鄂尔多斯盆地不同体系下累计产气率拟合曲线和不同地质时期累计产气率计算曲线

Figure 11. Fitting curves of cumulative gas production rate in different systems and calculation curves of cumulative gas production rate in different geological periods in Ordos Basin

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表 1 鄂尔多斯盆地半封闭体系下不同热解温度后页岩样品相关地球化学参数

Table 1. Related geochemical parameters of shale samples after different pyrolysis temperatures in semi-closed system of Ordos Basin

样品编号	ω(TOC)/%	R_o/%	T_max/℃	氯仿沥青“A”/%	S₁+S₂/(mg/g)	HI/(mg/g)
PY-原样	2.63	0.69	432		3.43	129
PY-325	2.50	0.87	448	0.097	1.73	67
PY-350	2.38	1.07	454	0.104	1.01	36
PY-375	2.31	1.45	557	0.066	0.57	19
PY-425	2.26	1.96	602	0.012	0.22	5
PY-500	2.19	2.79	605	0.006	0.16	4
PY-575	2.12	3.77	608	0.011	0.13	2

下载: 导出CSV

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