Lithologic Reservoirs ›› 2026, Vol. 38 ›› Issue (2): 65-75.doi: 10.12108/yxyqc.20260206

• PETROLEUM EXPLORATION • Previous Articles     Next Articles

Main controlling factors for hydrocarbon accumulation of Triassic Chang 81 reservoir in Huanxi area， Ordos Basin

LONG Liwen1,2(), XIAO Wenhua3, YAN Baonian3, WANG Jianguo3, LI Shaoyong3, LI Conglin3, GUO Yaoxuan3, REN Xueyao3   

  1. 1 Research Institute of Petroleum Exploration & Development-Northwest （NWGI）， PetroChina， Lanzhou 730020， China
    2 Key Laboratory of Reservoir Description， CNPC， Lanzhou 730020， China
    3 Exploration and Development Research Institute， PetroChina Yumen Oilfield Company， Jiuquan 735000， Gansu， China
  • Received:2025-09-18 Revised:2025-12-16 Online:2026-03-01 Published:2026-02-10

RichHTML

0

PDF (PC)

18

Abstract:

Through a large number of drilling core experiments and seismic data interpretation， depositional cha-racteristics and reservoir characteristics of Triassic Chang 81 in Huanxi area of Ordos Basin were analyzed， main controlling factors for hydrocarbon accumulation were explored， and oil and gas accumulation models were summurized. The results show that： （1） Triassic Chang 81 of Huanxi area develop delta plain sediments， with braided channels as the main reservoirs. The average porosity of the eastern reservoir is 7.9%， and the average permeability is 0.43 mD. The average porosity of the western reservoir is 15.8%， and the average permeability is 12.00 mD. （2） Du-ring the period of large-scale hydrocarbon expulsion， the paleostructure of Chang 81 in the study area exhibited the morphology of east-west high and middle low， with structural traps developed in the southwest，northwest and axial parts of Tianhuan Depression, providing the setting for oil and gas accumulation. The eastern part of Chang 7 has developed black mudstone shale，which belongs to high-quality source rock. The western part of Chang 7 has developed dark mudstone，which belongs to poor-medium source rock. On the plane，the thickness of source rocks gradually decreases from east to west， and source rocks in high parts of the western structure is not developed. Sand body thickness of Chang 81 reservoir in the west is large， with an average thickness of 24 m. Sand body thickness of axial parts of Tianhuan Depression is the largest， with the gradual thinning and pinch out of the sand body from the axial part to the western wing. （3） Crude oil of Chang 81 in the eastern part of the study area comes from the overlying Chang 7 black shale，which has the characteristics of upper generation and lower storage， near-source accumulation. Crude oil of Chang 81 in the western part of the study area comes from the black shale of Chang 7 in the east and the mudstone of Chang 7 in the west， with mixed source characteristics. Northwest trending faults and thick sand bodies of the axial part provide channels for hydrocarbon migration. Oil reservoirs can be divided into three categories： First， structural oil reservoirs developed in the axial part of Tianhuan Depression，with anticline traps as the main targets for exploration. Second， sandstone updip pinch out reser-voirs under the structural background of the developed west wing of Tianhuan Depression，north-south sandstone pinch out zones are the main exploration direction. Third， tight lithological oil reservoirs in the eastern region，with sand bodies close to source rocks as the main targets for exploration.

Key words: braided channel, upper generation and lower storage, near-source accumulation, sandstone pinch out zone, anticline trap, Chang 81, Triassic, Huanxi area, Tianhuan Depression, Ordos Basin

CLC Number: 

  • TE122.1

Fig. 1

Tectonic location （a） and comprehensive stratigraphic column of Triassic Chang 81 （b） in Huanxi area， Ordos Basin"

Fig. 2

Distribution of sedimentary facies of Triassic Chang 81 in Huanxi area， Ordos Basin"

Fig. 3

Typical core photos of Triassic Chang 81 in Huanxi area， Ordos Basin"

Fig. 4

Filling material content of Triassic Chang 81 reservoir in Huanxi area， Ordos Basin"

Fig. 5

Typical microscopic images of Triassic Chang 81 reservoir in Huanxi area， Ordos Basin"

Table 1

Pore structure parameters of Triassic Chang 81 reservoir in Huanxi area， Ordos Basin"

位置 井名 深度/m 测井解释
结果		 排驱压力/MPa 最大孔喉
半径/μm		 平均孔喉
半径/μm		 中值压力/MPa 中值半径/μm 分选
系数		 最大进汞
饱和度/%		 退汞
效率/%
东部 HQ103 2 428.33 油层 0.17 0.52 0.12 5.46 0.13 1.45 56.40 21.05
HQ201 2 460.27 油层 1.21 0.61 0.13 8.94 0.08 1.99 91.55 42.11
HQ211 2 427.69 油层 1.19 0.62 0.15 9.57 0.08 1.32 92.09 28.78
HQ217 2 521.06 油层 1.51 0.49 0.13 12.58 0.06 1.64 79.92 41.02
西部 HQ918 2 692.16 油层 0.24 2.79 1.18 12.93 0.21 2.53 91.30 46.08
HQ916 2 576.27 油层 0.51 1.82 1.13 9.52 0.12 2.23 92.02 41.23
HQ919 2 708.32 油层 0.92 1.29 0.83 11.08 0.08 1.75 86.66 36.29
平均值 0.82 1.16 0.52 10.01 0.11 1.84 84.28 36.65

Fig. 6

Structural map of Chang 81 at the end of Jurassic in Huanxi area， Ordos Basin"

Fig. 7

Structural map of Chang 81 at the end of Early Cretaceous in Huanxi area， Ordos Basin"

Fig. 8

Thickness distribution of Triassic Chang 7 source rocks in Huanxi area， Ordos Basin"

Fig. 9

Distribution characteristics of biomarkers between Chang 7 source rocks and Chang 81 crude oil in Huanxi area， Ordos Basin"

Fig. 10

Correlation of different biomarker compound indicators between Chang 7 source rocks and Chang 81 crude oil in Huanxi area， Ordos Basin"

Fig. 11

Distribution of Triassic Chang 81 sandstone in Huanxi area， Ordos Basin"

Fig. 12

Well-tie correlation of Chang 81 sandstone in western Huanxi area， Ordos Basin"

Fig. 13

Hydrocarbon accumulation models of Triassic Chang 81 in Huanxi area， Ordos Basin"

[1] 刘化清, 袁剑英, 李相博, 等. 鄂尔多斯盆地延长期湖盆演化及其成因分析[J]. 岩性油气藏, 2007, 19(1):52-56.
LIU Huaqing, YUAN Jianying, LI Xiangbo, et al. Lake basin evolution of Ordos Basin during Middle-Late Triassic and its origin analysis[J]. Lithologic Reservoirs, 2007, 19(1):52-56.
doi: 10.3969/j.issn.1673-8926.2007.01.009
[2] 赵文智, 王新民, 郭彦如, 等. 鄂尔多斯盆地西部晚三叠世原型盆地恢复及其改造演化[J]. 石油勘探与开发, 2006, 33(1):6-13.
ZHAO Wenzhi, WANG Xinmin, GUO Yanru, et al. Restoration and tectonic reworking of the Late Triassic Basin in western Ordos Basin[J]. Petroleum Exploration and Development, 2006, 33(1):6-13.
[3] 邓秀芹, 蔺昉晓, 刘显阳, 等. 鄂尔多斯盆地三叠系延长组沉积演化及其与早印支运动关系的探讨[J]. 古地理学报, 2008, 10(2):159-166.
DENG Xiuqin, LIN Fangxiao, LIU Xianyang, et al. Discussion on relationship between sedimentary evolution of the Triassic Yanchang Formation and the Early Indosinian Movement in Ordos Basin[J]. Journal of Palaeogeography (Chinses Edition), 2008, 10(2):159-166.
[4] 郭彦如, 刘俊榜, 杨华, 等. 鄂尔多斯盆地延长组低渗透致密岩性油藏成藏机理[J]. 石油勘探与开发, 2012, 39(4):417-425.
GUO Yanru, LIU Junbang, YANG Hua, et al. Hydrocarbon accumulation mechanism of low permeable tight lithologic oil reser-voirs in the Yanchang Formation,Ordos Basin,China[J]. Petroleum Exploration and Development, 2012, 39(4):417-425.
[5] 罗安湘, 喻建, 刘显阳, 等. 鄂尔多斯盆地中生界石油勘探实践及主要认识[J]. 新疆石油地质, 2022, 43(3):253-260.
LUO Anxiang, YU Jian, LIU Xianyang, et al. Practices and cognitions of petroleum exploration in Mesozoic,Ordos Basin[J]. Xinjiang Petroleum Geology, 2022, 43(3):253-260.
[6] 邓秀芹, 白斌. 鄂尔多斯盆地中生界全油气系统特征及成藏主控因素[J]. 石油勘探与开发, 2025, 52(5):1017-1027.
doi: 10.11698/PED.20250200
DENT Xiuqin, BAI Bin. Whole petroleum system and main con-trolling factors of hydrocarbon accumulation in the Mesozoic of Ordos Basin,NW China[J]. Petroleum Exploration and Deve-lopment, 2025, 52(5):1017-1027.
[7] 杨华, 付金华, 何海清, 等. 鄂尔多斯华庆地区低渗透岩性大油区形成与分布[J]. 石油勘探与开发, 2012, 39(6):641-648.
YANG Hua, FU Jinhua, HE Haiqing, et al. Formation and distribution of large low-permeability lithologic oil regions in Hua-qing,Ordos Basin[J]. Petroleum Exploration and Development, 2012, 39(6):641-648.
[8] 姚泾利, 王克, 宋江海, 等. 鄂尔多斯盆地姬塬地区延长组石油运聚规律研究[J]. 岩性油气藏, 2007, 19(3):32-37.
YAO Jingli, WANG Ke, SONG Jianghai, et al. Petroleum migra-tion and accumulation of Yanchang Formation in Jiyuan area,Ordos Basin[J]. Lithologic Reservoirs, 2007, 19(3):32-37.
[9] 刘显阳, 李士祥, 周新平, 等. 鄂尔多斯盆地石油勘探新领域、新类型及资源潜力[J]. 石油学报, 2023, 44(12):2070-2090.
doi: 10.7623/syxb202312005
LIU Xianyang, LI Shixiang, ZHOU Xinping, et al. New field,new types and resource potentials of petroleum exploration in Ordos Basin[J]. Acta Petrolei Sinica, 2023, 44(12):2070-2090.
[10] 李明瑞, 侯云超, 谢先奎, 等. 鄂尔多斯盆地平凉—演武地区三叠系延长组油气成藏模式及勘探前景[J]. 石油学报, 2023, 44(3):433-446.
doi: 10.7623/syxb202303003
LI Mingrui, HOU Yunchao, XIE Xiankui, et al. Hydrocarbon accumulation mode and exploration prospect of Triassic Yanchang Formation in Pingliang-Yanwu area,Ordos Basin[J]. Acta Petrolei Sinica, 2023, 44(3):433-446.
doi: 10.7623/syxb202303003
[11] 王龙, 陈培元, 孙福亭, 等. 鄂尔多斯盆地彭阳地区延长组、延安组原油地球化学特征与油源对比[J]. 海洋地质前沿, 2019, 35(12):49-55.
WANG Long, CHEN Peiyuan, SUN Futing, et al. Geochemical characteristics of crude oil from Yanchang and Yan’an Formations in Pengyang area of Ordos Basin and their implications for oil-source[J]. Marine Geology Frontiers, 2019, 35(12):49-55.
[12] 赵彦德, 邓秀芹, 齐亚林, 等. 鄂尔多斯盆地平凉北地区M53井烃源岩地球化学特征与长8段油层油源[J]. 现代地质, 2020, 34(4):800-811.
ZHAO Yande, DENG Xiuqing, QI Yalin, et al. Geochemical characteristics of source rocks of M53 well and Chang 8 member oil-source in Pingliangbei exploration area,Ordos Basin[J]. Geoscience, 2020, 34(4):800-811.
[13] 刘孝锐, 路俊刚, 谭开俊, 等. 鄂尔多斯盆地西南部HQ地区长7段烃源岩地球化学特征与长8段原油来源分析[J]. 现代地质, 2024, 38(5):1306-1324.
LIU Xiaorui, LU Jungang, TAN Kaijun, et al. Geochemical cha-racteristics and oil source analysis of the Chang 7 and Chang 8 members in the HQ area,southwestern Ordos Basin[J]. Geoscience, 2024, 38(5):1306-1324.
[14] 梁正中, 许红涛, 李昌. 鄂尔多斯盆地西南边缘地区长8段充注成藏模式南北对比[J]. 油气藏评价与开发, 2022, 12(6):918-926.
LIANG Zhengzhong, XU Hongtao, LI Chang. Comparison of ac-cumulation model of Chang-8 reservoirs between Huanxi-Peng-yang area in southwestern Ordos Basin[J]. Petroleum Reservoir Evaluation and Development, 2022, 12(6):918-926.
[15] 李相博, 刘化清, 陈启林, 等. 鄂尔多斯盆地天环坳陷迁移演化与坳陷西翼油气成藏[J]. 地质科学, 2010, 45(2):490-499.
LI Xiangbo, LIU Huaqing, CHEN Qilin, et al. Migration history of the Tianhuan depression of the Ordos Basin and its effects on the hydrocarbon accumulation in the west part of the depression[J]. Chinese Journal of Geology, 2010, 45(2):490-499.
[16] 李相博, 姚泾利, 刘化清, 等. 鄂尔多斯盆地中生界低幅度隆起构造成因类型及其对油气分布的控制作用[J]. 现代地质, 2013, 27(4):755-764.
LI Xiangbo, YAO Jingli, LIU Huaqing, et al. Tectonic origin type of the low amplitude uplifted structure and its role in the control of the distribution of oil and gas in Mesozoic,the Ordos Basin[J]. Geoscience, 2013, 27(4):755-764.
[17] 杨华, 刘自亮, 朱筱敏, 等. 鄂尔多斯盆地西南缘上三叠统延长组物源与沉积体系特征[J]. 地学前缘, 2013, 20(2):10-18.
YANG Hua, LIU Ziliang, ZHU Xiaomin, et al. Provenance and depositional systems of the Upper Triassic Yanchang Formation in the southwestern Ordos Basin,China[J]. Earth Science Frontiers, 2013, 20(2):10-18.
[18] 邓秀芹, 付金华, 姚泾利, 等. 鄂尔多斯盆地中及上三叠统延长组沉积相及油气勘探的突破[J]. 古地理学报, 2011, 13(4):443-455.
doi: 10.7605/gdlxb.2011.04.008
DENG Xiuqin, FU Jinhua, YAO Jingli, et al. Sedimentary facies of the Middle-Upper Triassic Yanchang Formation in Ordos Basin and breakthrough in petroleum exploration[J]. Journal of Palaeo-geography(Chinese Edition), 2011, 13(4):443-455.
[19] 刘迎宝, 李元昊, 翟文彬, 等. 极缓坡湖盆浅水三角洲前缘砂体类型及成因模式:以鄂尔多斯盆地郝滩地区三叠系长81亚段为例[J]. 岩性油气藏, 2025, 37(3):140-152.
doi: 10.12108/yxyqc.20250313
LIU Yingbao, LI Yuanhao, ZHAI Wenbin, et al. Types and genetic models of sand bodies in shallow water delta front of extremely gentle slope lake basin:A case study of Chang 81submember of Triassic in Haotan area,Ordos Basin[J]. Lithologic Reservoirs, 2025, 37(3):140-152.
doi: 10.12108/yxyqc.20250313
[20] 杨华, 辛补社, 付金华, 等. 鄂尔多斯盆地西南缘崆峒山组砾岩中的碎屑锆石LA-ICP-MS U-Pb定年及其构造意义[J]. 地质论评, 2014, 60(3):677-692.
YANG Hua, XIN Bushe, FU Jinhua, et al. LA-ICP-MS U-Pb dating of detrital zircons from Kongtongshan Formation conglomerate in the southwestern margin of Ordos Basin and its tectonic significance[J]. Geological Review, 2014, 60(3):677-692.
[21] 肖文华, 杨军, 严宝年, 等. 鄂尔多斯盆地环庆地区三叠系长8致密砂岩储层特征及成藏主控因素[J]. 岩性油气藏, 2025, 37(3):23-32.
doi: 10.12108/yxyqc.20250303
XIAO Wenhua, YANG Jun, YAN Baonian, et al. Characteristics and main controlling factors of Triassic Chang 8 tight sandstone reservoirs in Huanqing area,Ordos Basin[J]. Lithologic Reservoirs, 2025, 37(3):23-32.
doi: 10.12108/yxyqc.20250303
[22] 刘润川, 任战利, 马侃, 等. 鄂尔多斯盆地南部延长组油气成藏期次研究[J]. 现代地质, 2019, 33(6):1263-1274.
LIU Runchuan, REN Zhanli, MA Kan, et al. Classification of hydrocarbon accumulation phases of Yanchang Formation in southern Ordos Basin[J]. Geoscience, 2019, 33(6):1263-1274.
[23] 杨华, 付金华, 欧阳征健, 等. 鄂尔多斯盆地西缘晚三叠世构造—沉积环境分析[J]. 沉积学报, 2011, 29(3):427-439.
YANG Hua, FU Jinhua, OUYANG Zhengjian, et al. Analysis of tectonic-sedimentory setting in middle and Upper Triassic in the west margin of the Ordos Basin[J]. Acta Sedimentologica Sinica, 2011, 29(3):427-439.
[24] 苏复义, 周文, 金文辉, 等. 鄂尔多斯盆地中生界成藏组合划分与分布评价[J]. 石油与天然气地质, 2012, 33(4):582-590.
SU Fuyi, ZHOU Wen, JIN Wenhui, et al. Identification and distribution of the Mesozoic plays in Ordos Basin[J]. Oil & Gas Geology, 2012, 33(4):582-590.
[25] 陈贺贺, 朱筱敏, 陈纯芳, 等. 鄂尔多斯盆地彬长区块延长组生储盖组合与油气富集特征[J]. 岩性油气藏, 2016, 28(2):56-63.
CHEN Hehe, ZHU Xiaomin, CHEN Chunfang, et al. Characteri-stics of source-reservoir-caprock assemblage and hydrocarbon accumulation of Yanchang Formation in Binchang block,Ordos Basin[J]. Lithologic Reservoirs, 2016, 28(2):56-63.
[26] 杨德彬, 朱光有, 苏劲, 等. 中国含油气盆地疏导体系类型及其有效性评价[J]. 西南石油大学学报(自然科学版), 2011, 33(3):8-17.
YANG Debin, ZHU Guangyou, SU Jin, et al. The passage system and effectiveness evaluation of oil and gas basin in China[J]. Journal of Southwest Petroleum University (Science & Techno-logy Edition), 2011, 33(3):8-17.
[27] 李月, 胥凯, 颜世永, 等. 含油气盆地油气输导体系分析[J]. 油气地质与采收率, 2015, 22(1):32-36.
LI Yue, XU Kai, YAN Shiyong, et al. Study on hydrocarbon carrier system in petroliferous basins[J]. Petroleum Geology and Recovery Efficiency, 2015, 22(1):32-36.
[28] 李元昊, 张铭记, 王秀娟, 等. 鄂尔多斯盆地西北部上三叠统延长组复合油藏成藏机理[J]. 岩性油气藏, 2010, 22(2):32-36.
LI Yuanhao, ZHANG Mingji, WANG Xiujuan, et al. Accumulation mechanism of composite reservoir of Upper Triassic Yanchang Formation in northwestern Ordos Basin[J]. Lithologic Reservoirs, 2010, 22(2):32-36.
doi: 10.3969/j.issn.1673-8926.2010.02.006
[29] 张晓磊, 唐颖, 李卓奕, 等. 鄂尔多斯盆地西南缘延长组长8段低充注油藏成藏模式:以环西—彭阳地区为例[J]. 西安石油大学学报(自然科学版), 2023, 38(1):31-44.
ZHANG Xiaolei, TANG Ying, LI Zhuoyi, et al. Hydrocarbon accumulation patterns of Chang 8 low-charging oil reservoirs in southwestern margin of Ordos Basin:Taking Huanxi-Pengyang area as an example[J]. Journal of Xi’ an Shiyou University (Natural Science Edition), 2023, 38(1):31-44.
[1] XUE Bowen, ZHANG Zhaohui, ZHANG Jiaosheng, ZOU Jiandong, ZHANG Wenting. Intelligent identification of fluid logging in tight sandstone reservoirs based on GWO-XGBoost model: A case study of Triassic Chang 8 member in Hongde area, Ordos Basin [J]. Lithologic Reservoirs, 2026, 38(2): 111-121.
[2] YANG Zhanlong, HAO Bin, TAN Kaijun, ZHANG Jing, ZHANG Liping, LIAO Jianbo, LI Zaiguang, SHI Jianglong. Geological features and hydrocarbon exploration directions of medium to small-scale basin group, onshore China [J]. Lithologic Reservoirs, 2026, 38(2): 12-31.
[3] ZHOU Wenjuan, PU Renhai, LU Zixing, WANG Kangle, ZHANG Peng, WEN Xingyu, WANG Tong, GUAN Yunwen. Distribution characteristics and controlling factors of evaporites in Member 5 of Ordovician Majiagou Formation, central and eastern Ordos Basin [J]. Lithologic Reservoirs, 2026, 38(2): 122-133.
[4] LI Tao, MA Guofu, ZHAO Leyi, YUAN Li, MA Qilin, XIE Jingyu, ZHANG Bo, LI Henan. Characteristics and oil-source correlation of Triassic Chang 7 member source rocks in Huanxian area, Ordos Basin [J]. Lithologic Reservoirs, 2026, 38(2): 134-144.
[5] GU Wen, CHEN Hui, ZHU Yadong, WU Furong, ZHAO Zhou, WANG Shuyan, WANG Wei. Main controlling factors of hydrocarbon accumulation and exploration directions of the second member of Triassic Jialingjiang Formation, southern Sichuan Basin [J]. Lithologic Reservoirs, 2026, 38(2): 56-64.
[6] ZHANG Hong, ZOU Niuniu, YIN Yuanyan, YE Zhilong. Sedimentary environment and hydrocarbon geological significance of Lower Triassic Baikouquan Formation in Mabei slope, Junggar Basin [J]. Lithologic Reservoirs, 2026, 38(2): 86-96.
[7] GUO Yuxin, BAI Yubin, ZHAO Jingzhou, ZHANG Jun, CAO Dandan. Heterogeneity and oil control effects of Triassic Chang 7 shale in Zhidan area, Ordos Basin [J]. Lithologic Reservoirs, 2026, 38(2): 97-110.
[8] ZHANG Mengbo, PENG Jiankang, CUI Xiaojie, ZHANG Dong, NI Na, LONG Shengfang, WEI Penghui. Seismic prediction technology for coal rock gas reservoir of Carboniferous Benxi Formation in northern Mizhi area, Ordos Basin [J]. Lithologic Reservoirs, 2026, 38(1): 162-171.
[9] XUN Xiaoquan, LI Hongtao, LI Changping, YANG Fan, LIU Xiong. A new method for splitting the production of fractured horizontal wells in strong heterogeneous gas reservoirs:Taking Permian He1 member gas reservoir in Dongsheng Gasfield of Ordos Basin as an example [J]. Lithologic Reservoirs, 2026, 38(1): 191-200.
[10] YIN Jiang, JIAO Xuejun, LI Xiaolong, LI Taifu, SHEN Zhanyong, LI Mengxi, SUN Rui, ZHU Yushuang. Evaluation method for oil saturation in low resistivity reservoirs based on random forest optimization algorithm [J]. Lithologic Reservoirs, 2026, 38(1): 55-66.
[11] JIANG Mengya, JIANG Zhongfa, LIU Longsong, WANG Jiangtao, CHEN Hailong, WANG Xueyong, LIU Hailei. Hydrocarbon geochemical characteristics and source of Triassic Baijiantan Formation in Dabasong uplift, Junggar Basin [J]. Lithologic Reservoirs, 2025, 37(6): 71-87.
[12] SU Shuai, QU Hongjun, YIN Hu, ZHANG Leigang, YANG Xiaofeng. Fractal characteristics of pore throat structure and their influence on reservoir physical properties of tight sandstone reservoir: A case study of Triassic Chang 8 member in Fuxian area, Ordos Basin [J]. Lithologic Reservoirs, 2025, 37(6): 88-98.
[13] MIAO Zhiwei, LI Shikai, ZHANG Wenjun, XIAO Wei, LIU Ming, YU Tong. Seismic prediction technology for complex network fractures in fault-fracture reservoir of tight sandstones: A case study of Triassic Xujiahe Formation in northern Sichuan Basin [J]. Lithologic Reservoirs, 2025, 37(6): 140-150.
[14] LI Chunyang, WANG Boli, YAN Xiao, LI Kesai, DENG Hucheng, SU Jinyi, WU Yajun, YE Tairan. Current geostress logging evaluation of tight reservoir in the fourth member of Triassic Xujiahe Formation in Yuanba area, northeastern Sichuan Basin [J]. Lithologic Reservoirs, 2025, 37(6): 151-161.
[15] LU Jiang, WANG Jian, WU Nan, LI Chengshan, FENG Zifei. Exploration potential of shale gas in Ordovician Wulalike Formation in the western margin of Ordos Basin [J]. Lithologic Reservoirs, 2025, 37(5): 34-48.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
TRENDMD:

Copyright © 2018 Lithologic Reservoirs

Support by Beijing Magtech support@magtech.com.cn