苏北盆地低有机质断块型页岩油测井评价方法及应用

doi:10.13809/j.cnki.cn32-1825/te.2025.01.003

摘要/Abstract

摘要：

苏北盆地构造复杂、断层发育，阜宁组二段泥页岩的有机质丰度较低，总有机碳含量基本小于1.5%。该套泥页岩具有岩相类型多样、孔隙结构复杂、储层非均质性强、压力系数横向变化大等特点。以苏北盆地H区块阜宁组二段页岩油储层为例，基于岩石物理实验分析结果，对区域测井响应关系特征进行分析，将常规测井与特殊测井相结合，建立页岩油储层岩性、储集性、含油性、可动性、可压性评价的测井解释模型，模型计算结果与岩心分析结果吻合较好。在此基础上，优选敏感参数，建立了区块页岩油储层评价分类标准，对储层进行“甜点”综合评价。经多口井的勘探实践验证，该测井评价技术具有较好的地区适应性，有效划分页岩油储层类别，有利于页岩油储层“甜点”优选，为苏北盆地页岩油勘探开发提供可靠的技术支持。

关键词: 苏北盆地, 阜二段, 页岩油, 测井, 储层参数, “甜点”评价

Abstract:

The Subei Basin is characterized by a complex structure and well-developed faults. The shale in the second member of the Funing Formation has relatively low organic matter abundance, with a total organic carbon (TOC) generally below 1.5%. This shale exhibits diverse lithofacies types, complex pore structures, strong reservoir heterogeneity, and significant lateral variations in pressure coefficients. Using the shale oil reservoir in Block H of the second member of the Funing Formation in the Subei Basin as an example, this paper analyzed the characteristics of regional logging responses based on the results of rock physics experiments. By integrating conventional and specialized logging methods, a logging interpretation model was developed to evaluate the lithology, reservoir properties, oil content, mobility, and fracability of the shale oil reservoir. The model’s calculations aligned well with core analysis results. Building on this, sensitive parameters were optimized to establish evaluation and classification standards for the shale oil reservoirs in the block, and a comprehensive “sweet spot” evaluation of the reservoir was conducted. Exploration practices involving multiple wells have verified that this logging evaluation technology is regionally adaptable. It effectively classifies shale oil reservoir types, supports the optimal selection of “sweet spots”, and provides reliable technical support for the exploration and development of shale oil in the Subei Basin.

Key words: Subei Basin, the second member of Funing Formation, shale oil, well logging, reservoir parameters, “sweet spot” evaluation

中图分类号:

TE122

钱诗友,杨志强,徐晨. 苏北盆地低有机质断块型页岩油测井评价方法及应用[J]. 油气藏评价与开发, 2025, 15(1): 19-27.

QIAN Shiyou,YANG Zhiqiang,XU Chen. Logging evaluation methods of low-organic matter fault-block shale oil in the Subei Basin and their application[J]. Petroleum Reservoir Evaluation and Development, 2025, 15(1): 19-27.

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参考文献 25

[1]	金之钧, 王冠平, 刘光祥, 等. 中国陆相页岩油研究进展与关键科学问题[J]. 石油学报, 2021, 42(7): 821-835.
	JIN Zhijun, WANG Guanping, LIU Guangxiang, et al. Research progress and key scientific issues of continental shale oil in China[J]. Acta Petrolei Sinica, 2021, 42(7): 821-835.
[2]	马永生, 蔡勋育, 赵培荣, 等. 中国陆相页岩油地质特征与勘探实践[J]. 地质学报, 2022, 96(1): 155-171.
	MA Yongsheng, CAI Xunyu, ZHAO Peirong, et al. Geological characteristics and exploration practices of continental shale oil in China[J]. Acta Geologica Sinica, 2022, 96(1): 155-171.
[3]	何文渊, 蒙启安, 冯子辉, 等. 松辽盆地古龙页岩油原位成藏理论认识及勘探开发实践[J]. 石油学报, 2022, 43(1): 1-14.
	HE Wenyuan, MENG Qi'an, FENG Zihui, et al. In-situ accumulation theory and exploration & development practice of Gulong shale oil in Songliao Basin[J]. Acta Petrolei Sinica, 2022, 43(1): 1-14.
[4]	刘惠民. 济阳坳陷页岩油勘探实践与前景展望[J]. 中国石油勘探, 2022, 27(1): 73-87.
	LIU Huimin. Exploration practice and prospect of shale oil in Jiyang Depression[J]. China Petroleum Exploration, 2022, 27(1): 73-87.
[5]	赵贤正, 蒲秀刚, 周立宏, 等. 深盆湖相区页岩油富集理论、勘探技术及前景: 以渤海湾盆地黄骅坳陷古近系为例[J]. 石油学报, 2021, 42(2): 143-162.
	ZHAO Xianzheng, PU Xiugang, ZHOU Lihong, et al. Enrichment theory, exploration technology and prospects of shale oil in lacustrine facies zone of deep basin:a case study of the Paleogene in Huanghua depression, Bohai Bay Basin[J]. Acta Petrolei Sinica, 2021, 42(2): 143-162.
[6]	何文渊. 松辽盆地古龙凹陷页岩油储层中的纳孔纳缝及其原位成藏理论初探[J]. 地学前缘, 2023, 30(1): 156-173.
	HE Wenyuan. Preliminary study on nanopores, nanofissures, and in situ accumulation of Gulong shale oil[J]. Earth Science Frontiers, 2023, 30(1): 156-173.
[7]	方志雄, 肖秋生, 张殿伟, 等. 苏北盆地陆相“断块型”页岩油地质特征及勘探实践[J]. 石油与天然气地质, 2023, 44(6): 1468-1478.
	FANG Zhixiong, XIAO Qiusheng, ZHANG Dianwei, et al. Geological characteristics and exploration of continental fault-block shale oil reservoirs in the Subei Basin[J]. Oil & Gas Geology, 2023, 44(6): 1468-1478.
[8]	芮晓庆, 周圆圆, 李志明, 等. 苏北盆地阜宁组源储特征及页岩油勘探方向探讨[J]. 海洋地质与第四纪地质, 2020, 40(6): 133-145.
	RUI Xiaoqing, ZHOU Yuanyuan, LI Zhiming, et al. Characteristics of source rocks and reservoirs of the Funing Formation in the Subei Basin and their bearing on future shale oil exploration[J]. Marine Geology & Quaternary Geology, 2020, 40(6): 133-145.
[9]	荆晓明. 苏北盆地溱潼凹陷古近系阜二段页岩油甜点评价[J]. 非常规油气, 2023, 10(3): 31-38.
	JING Xiaoming. Evaluation of shale oil sweet spots in the second member of Paleogene Funing Formation in Qintong Sag, Subei Basin[J]. Unconventional Oil & Gas, 2023, 10(3): 31-38.
[10]	高玉巧, 蔡潇, 夏威, 等. 苏北盆地古近系阜宁组二段页岩油储集空间特征及甜点段评价: 以溱潼凹陷QY1井为例[J]. 石油实验地质, 2024, 46(5): 916-926.
	GAO Yuqiao, CAI Xiao, XIA Wei, et al. Characteristics of reservoir space and sweet spot evaluation of shale oil in the second member of Paleogene Funing Formation in Subei Basin: A case study of well QY1 in Qintong Sag[J]. Petroleum Geology & Experiment, 2024, 46(5): 916-926.
[11]	云露, 何希鹏, 花彩霞, 等. 苏北盆地溱潼凹陷古近系陆相页岩油成藏地质特征及资源潜力[J]. 石油学报, 2023, 44(1): 176-187.
	YUN Lu, HE Xipeng, HUA Caixia, et al. Accumulation characteristics and resource potential of Paleogene continental shale oil in Qintong sag of Subei Basin[J]. Acta Petrolei Sinica, 2023, 44(1): 176-187.
[12]	朱相羽, 段宏亮, 孙雅雄. 苏北盆地高邮凹陷古近系陆相页岩油勘探突破及意义[J]. 石油学报, 2023, 44(8): 1206-1221.
	ZHU Xiangyu, DUAN Hongliang, SUN Yaxiong. Breakthrough and significance of Paleogene continental shale oil exploration in Gaoyou sag,Subei Basin[J]. Acta Petrolei Sinica, 2023, 44(8): 1206-1221.
[13]	舒良树, 王博, 王良书, 等. 苏北盆地晚白垩世—新近纪原型盆地分析[J]. 高校地质学报, 2005(4): 534-543.
	SHU Liangshu, WANG Bo, WANG Liangshu, et al. Analysis of northern Jiangsu prototype basin from Late Cretaceous to Neogene[J]. Geological Journal of China Universities, 2005(4): 534-543.
[14]	邱旭明, 刘玉瑞, 傅强. 苏北盆地上白垩统—第三系层序地层与沉积演化[M]. 北京: 地质出版社, 2006.
	QIU Xuming, LIU Yurui, FU Qiang. Stratigraphic sequence and sedimentary evolution of Tertiary and Upper Cretaceous in Subei Basin[M]. Beijing: Geological Publishing House, 2006.
[15]	昝灵, 骆卫峰, 马晓东. 苏北盆地溱潼凹陷阜二段烃源岩生烃潜力及形成环境[J]. 非常规油气, 2016, 6(3): 1-8.
	ZAN Ling, LUO Weifeng, MA Xiaodong. Hydrocarbon generation potential and genetic environments of second member of Funing Formation in Qintong Sag, Subei Basin[J]. Unconventional Oil & Gas, 2016, 6(3): 1-8.
[16]	段宏亮, 孙雅雄, 杨保良. 苏北盆地高邮凹陷古近系阜宁组二段页岩油富集主控因素[J]. 石油实验地质, 2024, 46(3): 441-450.
	DUAN Hongliang, SUN Yaxiong, YANG Baoliang. Main controlling factors of shale oil enrichment in second member of Paleogene Funing Formation in Gaoyou Sag of Subei Basin[J]. Petroleum Geology & Experiment, 2024, 46(3): 441-450.
[17]	昝灵, 白鸾羲, 印燕铃, 等. 苏北盆地溱潼凹陷古近系阜宁组二段页岩油基本特征及成因分析[J]. 石油实验地质, 2023, 45(2): 356-365.
	ZAN Ling, BAI Luanxi, YIN Yanling, et al. Basic characteristics and genesis analysis of shale oil in the second member of Paleogene Funing Formation in Qintong Sag, Subei Basin[J]. Petroleum Geology & Experiment, 2023, 45(2): 356-365.
[18]	匡立春, 侯连华, 杨智, 等. 陆相页岩油储层评价关键参数及方法[J]. 石油学报, 2021, 1(1): 1-14.
	KUANG Lichun, HOU Lianhua, YANG Zhi, et al. Key parameters and methods of lacustrine shale oil reservoir characterization[J]. Acta Petrolei Sinica, 2021, 1(1): 1-14.
[19]	李国欣, 刘国强, 侯雨庭, 等. 陆相页岩油有利岩相优选与压裂参数优化方法[J]. 石油学报, 2021, 42(11): 1405-1416.
	LI Guoxin, LIU Guoqiang, HOU Yuting, et al. Optimization method of favorable lithofacies and fracturing parameter for continental shale oil[J]. Acta Petrolei Sinica, 2021, 42(11): 1405-1416.
[20]	马林. 页岩储层关键参数测井评价方法研究[J]. 油气藏评价与开发, 2013, 3(6): 66-71.
	MA Lin. Study on key parameters logging evaluation methods of shale reservoir[J]. Reservoir Evaluation and Development, 2013, 3(6): 66-71.
[21]	夏宏泉, 赖俊, 李高仁, 等. 基于测井资料的页岩油储层甜点预测[J]. 西南石油大学学报(自然科学版), 2021, 43(4): 199-207.
	XIA Hongquan, LAI Jun, LI Gaoren, et al. Sweet spot prediction of shale oil reservoir based on logging data[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2021, 43(4): 199-207.
[22]	杨智, 唐振兴, 李国会, 等. 陆相页岩层系石油富集区带优选、甜点区段评价与关键技术应用[J]. 地质学报, 2021, 95(8): 2257-2272.
	YANG Zhi, TANG Zhenxing, LI Guohui, et al. Optimization of enrichment plays,evaluation of sweet area and application of key technologies for the continental shale strata oil in China[J]. Acta Geologica Sinica, 2021, 95 (8): 2257-2272.
[23]	刘雅慧, 王才志, 刘忠华, 等. 一种评价页岩油含油性的测井方法: 以准噶尔盆地吉木萨尔凹陷为例[J]. 天然气地球科学, 2021, 32(7): 1084-1091.
	LIU Yahui, WANG Caizhi, LIU Zhonghua, et al. A logging method for evaluating oil-bearing property of Jimsar shale oil:Case study of Sag in Junggar Basin[J]. Natural Gas Geoscience, 2021, 32(7): 1084-1091.
[24]	李志明, 刘雅慧, 等.何晋译, 陆相页岩油“甜点”段评价关键参数界限探讨[J]. 石油与天然气地质, 2023, 44(6): 1453-1467.
	LI Zhiming, LIU Yahui, HE Jinyi, et al. Limits of critical parameters for sweet-spot interval evaluation of lacustrine shale oil[J]. Oil & Gas Geology, 2023, 44(6): 1453-1467.
[25]	白斌, 戴朝成, 侯秀林, 等. 松辽盆地白垩系青山口组页岩层系非均质地质特征与页岩油甜点评价[J]. 石油与天然气地质, 2023, 44(4): 846-856.
	BAI Bin, DAI Chaocheng, HOU Xiulin, et al. Geological heterogeneity of shale sequence and evaluation of shale oil sweet spots in the Qingshankou Formation, Songliao Basin[J]. Oil & Gas Geology, 2023, 44(4): 846-856

储层类型	黏土含量/%	孔隙度/%	总有机碳含量/%	液态烃含量/(mg/g)	含油饱和度/%	脆性矿物指数/%	裂缝发育情况
Ⅰ类页岩油层	<30	>5	>1.5	>1.5	>50	>60	发育
Ⅱ类页岩油层	30~40	3~5	1.0~1.5	1.0~1.5	40~50	50~60	较发育
Ⅲ类页岩油层	>40	<3	<1.0	<1.0	<40	<50	不发育