渤海湾盆地东营凹陷古近系富碳酸盐矿物页岩储集特征及其控制因素

徐效平

doi:10.11781/sysydz202303413

渤海湾盆地东营凹陷古近系富碳酸盐矿物页岩储集特征及其控制因素

doi: 10.11781/sysydz202303413

徐效平

中国石化胜利油田东胜精攻石油开发集团股份有限公司, 山东东营 257000

详细信息

作者简介:
徐效平(1974—)，男，硕士，高级工程师，从事石油地质综合研究工作。E-mail: xuxiaoping015.slyt@sinopec.com

中图分类号: TE122.2
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出版历程
- 收稿日期: 2023-03-27
- 修回日期: 2023-05-12
- 刊出日期: 2023-05-28

Reservoir characteristics and controlling factors of Paleogene carbonate-rich shale in Dongying Sag, Bohai Bay Basin

XU Xiaoping

Dongsheng Jinggong Petroleum Development Stock Co., Ltd., Shengli Oilfield, SINOPEC, Dongying, Shandong 257000, China

摘要

摘要: 综合运用岩心观察、薄片观察、氮气吸附和X衍射等分析方法，对渤海湾盆地济阳坳陷东营凹陷牛页1井、樊页平1井古近系沙河街组四段上亚段的湖相页岩的矿物组成、沉积构造、纹层类型、孔径分布、孔体积、比表面积、纹层数量及溶蚀孔形态等特征进行了精细刻画。在此基础上总结了该地区主要岩相类型及纹层特征，不同岩相的孔径、孔体积及比表面积，富碳酸盐矿物页岩的孔隙及纹层特征。东营凹陷主要发育富有机质纹层状泥质灰岩、富有机质纹层状砂质灰岩、含有机质纹层状砂质灰岩、含有机质块状灰岩4种岩相类型。纹层镜下特征主要有平直状、透镜状、夹层状、波状等特征。实测氮气吸附数据显示东营凹陷富碳酸盐矿物页岩具有更大的孔体积及比表面积。同时，溶蚀孔和纹层的发育使得富碳酸盐矿物页岩具有更高的储集能力和水平渗透率。因此，富碳酸盐矿物页岩是东营凹陷优质储集单位。
- 页岩 /
- 富碳酸盐矿物页岩 /
- 岩相特征 /
- 纹层特征 /
- 储集特征 /
- 主控因素 /
- 东营凹陷 /
- 渤海湾盆地
Abstract: In this paper, the mineralogical composition, sedimentary structure, laminar type, pore size distribution, pore volume, specific surface area, number of laminae and morphological characteristics of dissolution pores of the lacustrine shale from the upper sub-member of the fourth member of the Paleogene Shahejie Formation of the wells NY1 and FYP1 in the Dongying Sag of Bohai Bay Basin were finely characterized by a combination of core observation, thin section observation, nitrogen adsorption and X-ray diffraction. On this basis, the main lithofacies types and laminar characteristics, the pore size, pore volume and specific surface area of different lithofacies, and the pore and laminar characteristics of carbonate-rich shale in this area were summarized. The results show that there are four lithofacies types in the Dongying Sag: organic-rich laminated argillaceous limestone, organic-rich laminated sandy limestone, organic-bearing laminated sandy limestone and organic-bearing massive limestone. The microscopic features of the laminae are mainly flat, lenticular, interbedded and undulating. The measured nitrogen adsorption data show that the carbonate-rich shale in the Dongying Sag has a larger pore volume and specific surface area. At the same time, the development of dissolution pores and laminae allows the carbonate-rich shale to have higher storage capacity and horizontal permeability. Therefore, the carbonate-rich shale is a high quality reservoir in the Dongying Sag.
- shale /
- carbonate-rich shale /
- lithofacies characteristics /
- laminar characteristics /
- reservoir characte-ristics /
- main controlling factors /
- Dongying Sag /
- Bohai Bay Basin

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图 1 渤海湾盆地东营凹陷区域地质概况

据参考文献[13]修改。

Figure 1. Regional geological survey of Dongying Sag, Bohai Bay Basin

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图 2 渤海湾盆地东营凹陷樊页平1、牛页1井岩相分类

Figure 2. Lithofacies classification of wells NY1 and FYP1 in Dongying Sag, Bohai Bay Basin

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图 3 渤海湾盆地东营凹陷研究区典型岩相岩心

a.富有机质纹层状泥质灰岩相，牛页1井，3 437.38~3 437.78 m；b.含有机质纹层状砂质灰岩相，牛页1井，3 347.83~3 348.25 m；c.富有机质纹层状砂质灰岩相，樊页平1井，3 473.50 m；d.含有机质块状灰岩相，樊页平1井，3 455.84~ 3 455.98 m；e.富有机质纹层状泥质灰岩，牛页1井，3 490.12 m

Figure 3. Cores of typical lithofacies in Dongying Sag, Bohai Bay Basin

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图 4 渤海湾盆地东营凹陷樊页平1井岩心纹层镜下照片

a.平直纹层，富有机质纹层与碳酸盐纹层等厚分布，樊页平1井，3 451.70 m；b.透镜状纹层，富有机质纹层较薄，呈波状，亮晶方解石呈透镜状，樊页平1井，3 471.00 m；c.夹层状纹层，富有机质与碳酸盐纹层互层，碳酸盐纹层较厚，富有机质纹层较薄，樊页平1井，3 473.00 m；d.夹层状纹层，富有机质与碳酸盐纹层互层，富有机质纹层较厚，碳酸盐纹层较薄，有零星石英分布，樊页平1井，3 473.50 m

Figure 4. Microscopic pictures of core laminae of well FYP1 in Dongying Sag, Bohai Bay Basin

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图 5 渤海湾盆地东营凹陷樊页平1井差异岩相页岩不同孔径孔体积分布

Figure 5. Distribution of pore volume and pore size of shale with different lithofacies in well FYP1, Dongying Sag, Bohai Bay Basin

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图 6 渤海湾盆地东营凹陷樊页平1井差异岩相页岩不同孔径孔比表面积分布

Figure 6. Distribution of pore specific surface area and pore size of shale with different lithofacies in well FYP1, Dongying Sag, Bohai Bay Basin

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图 7 渤海湾盆地东营凹陷不同岩相页岩总孔体积和总孔比表面积分布

Figure 7. Distribution of total pore volume and total pore specific surface area of shale with different lithofacies in Dongying Sag, Bohai Bay Basin

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图 8 渤海湾盆地东营凹陷樊页平1井碳酸盐矿物含量对孔隙结构的影响

Figure 8. Effect of carbonate mineral content on pore structure of well FYP1 in Dongying Sag, Bohai Bay Basin

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图 9 渤海湾盆地东营凹陷樊页平1井晶粒碳酸盐矿物扫描电镜溶蚀孔特征

Figure 9. SEM photographs of dissolution pores in crystalline carbonate minerals from well FY1, Dongying Sag, Bohai Bay Basin

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图 10 渤海湾盆地济阳坳陷页岩油储层不同岩相渗透率各向异性直方图

据参考文献[20]修改。

Figure 10. Histogram of permeability anisotropy of different lithofacies of shale oil reservoirs in Jiyang Depression, Bohai Bay Basin

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参考文献(22)

[1]	宋明水, 茆书巍, 林会喜, 等. 断陷湖盆湖底扇砂岩体沉积特征及主控因素分析: 以东营凹陷民丰地区沙三段中亚段为例[J]. 油气地质与采收率, 2021, 28(3): 1-13. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS202103002.htm SONG Mingshui, MAO Shuwei, LIN Huixi, et al. Sedimentary characteristics and controlling factors of sublacustrine fan sand bodies in faulted basin: a case study of Middle Es³ in Minfeng area, Dongying Sag[J]. Petroleum Geology and Recovery Efficiency, 2021, 28(3): 1-13. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS202103002.htm
[2]	王永诗, 唐东. 咸化断陷湖盆典型页岩剖面地质特征: 以东营凹陷为例[J]. 油气藏评价与开发, 2022, 12(1): 181-191. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ202201016.htm WANG Yongshi, TANG Dong. Geological characteristics of typical shale profile in a saline lacustrine rift basin: a case study of Dongying sag[J]. Reservoir Evaluation and Development, 2022, 12(1): 181-191. https://www.cnki.com.cn/Article/CJFDTOTAL-KTDQ202201016.htm
[3]	宁方兴, 王学军, 郝雪峰, 等. 东营凹陷细粒沉积岩岩相组合特征[J]. 西南石油大学学报(自然科学版), 2020, 42(4): 55-65. https://www.cnki.com.cn/Article/CJFDTOTAL-XNSY202004006.htm NING Fangxing, WANG Xuejun, HAO Xuefeng, et al. Fine-grained sedimentary rock lithofacies assemblage characteristics in Dongying Depression[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2020, 42(4): 55-65. https://www.cnki.com.cn/Article/CJFDTOTAL-XNSY202004006.htm
[4]	王勇, 刘惠民, 宋国奇, 等. 湖相泥页岩中碳酸盐成因及页岩油气地质意义: 以东营凹陷沙河街组四段上亚段—沙河街组三段下亚段烃源岩为例[J]. 石油学报, 2017, 38(12): 1390-1400. doi: 10.7623/syxb201712006 WANG Yong, LIU Huimin, SONG Guoqi, et al. Carbonate genesis and geological significance of shale hydrocarbon in lacustrine facies mud shale: a case study of source rocks in the Upper submember of member 4 and Lower submember of member 3 of Shahejie Formation, Dongying Sag[J]. Acta Petrolei Sinica, 2017, 38(12): 1390-1400. doi: 10.7623/syxb201712006
[5]	宁方兴, 王学军, 郝雪峰, 等. 济阳坳陷页岩油甜点评价方法研究[J]. 科学技术与工程, 2015, 15(35): 11-16. doi: 10.3969/j.issn.1671-1815.2015.35.003 NING Fangxing, WANG Xuejun, HAO Xuefeng, et al. Evaluation method of shale oil sweet spots in Jiyang Depression[J]. Science Technology and Engineering, 2015, 15(35): 11-16. doi: 10.3969/j.issn.1671-1815.2015.35.003
[6]	赵珂. 渤海湾盆地东营凹陷沙四上—沙三下亚段碳酸盐纹层特征及成因分析[D]. 武汉: 中国地质大学, 2020. ZHAO Ke. Characteristics and genesis analysis of carbonate lamina in the upper fourth member and the lower third member of Shahejie Formation in Dongying Depression, Bohai Bay Basin[D]. Wuhan: China University of Geosciences, 2020.
[7]	王冠民. 济阳坳陷古近系页岩的纹层组合及成因分类[J]. 吉林大学学报(地球科学版), 2012, 42(3): 666-671. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ201203010.htm WANG Guanmin. Laminae combination and genetic classification of Eogene shale in Jiyang Depression[J]. Journal of Jilin University(Earth Science Edition), 2012, 42(3): 666-671. https://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ201203010.htm
[8]	王冠民, 钟建华, 马在平. 湖泊纹层状沉积物的同生期变化研究述评[J]. 世界地质, 2003, 22(3): 231-236. doi: 10.3969/j.issn.1004-5589.2003.03.004 WANG Guanmin, ZHONG Jianhua, MA Zaiping. Syngenetic changes in lacustrine lamellar sediments[J]. Global Geology, 2003, 22(3): 231-236. doi: 10.3969/j.issn.1004-5589.2003.03.004
[9]	ZHAO Bangsheng, LI Rongxi. Formation mechanism of bedding-parallel antitaxial fibrous veins in shale: a review[J]. Journal of Structural Geology, 2022, 161: 104653. doi: 10.1016/j.jsg.2022.104653
[10]	王伟庆, 刘惠民, 刘雅利, 等. 东营凹陷古近系页岩碳酸盐纹层内部结构与成因[J]. 油气地质与采收率, 2022, 29(3): 11-19. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS202203002.htm WANG Weiqing, LIU Huimin, LIU Yali, et al. Texture and genesis of Paleogene lacustrine shale carbonate laminae in Dongying Sag, Jiyang Depresion, Bohai Bay Basin[J]. Petroleum Geology and Recovery Efficiency, 2022, 29(3): 11-19. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS202203002.htm
[11]	孙善勇, 刘惠民, 操应长, 等. 湖相深水细粒沉积岩米兰科维奇旋回及其页岩油勘探意义: 以东营凹陷牛页1井沙四上亚段为例[J]. 中国矿业大学学报, 2017, 46(4): 846-858. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD201704019.htm SUN Shanyong, LIU Huimin, CAO Yingchang, et al. Milankovitch cycle of lacustrine deepwater fine-grained sedimentary rocks and its significance to shale oil: a case study of the Upper Es₄ member of well NY1 in Dongying Sag[J]. Journal of China University of Mining & Technology, 2017, 46(4): 846-858. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD201704019.htm
[12]	刘姝君, 操应长, 梁超. 渤海湾盆地东营凹陷古近系细粒沉积岩特征及沉积环境[J]. 古地理学报, 2019, 21(3): 479-489. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201903009.htm LIU Shujun, CAO Yingchang, LIANG Chao. Lithologic characteristics and sedimentary environment of fine-grained sedimentary rocks of the Paleogene in Dongying Sag, Bohai Bay Basin[J]. Journal of Palaeogeography, 2019, 21(3): 479-489. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201903009.htm
[13]	BAI Chenyang, YU Bingsong, LIU Huimin, et al. The genesis and evolution of carbonate minerals in shale oil formations from Dongying Depression, Bohai Bay Basin, China[J]. International Journal of Coal Geology, 2018, 189: 8-26. http://www.onacademic.com/detail/journal_1000040204138010_909a.html
[14]	陈扬, 胡钦红, 赵建华, 等. 渤海湾盆地东营凹陷湖相富有机质页岩纹层特征和储集性能[J]. 石油与天然气地质, 2022, 43(2): 307-324. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202202006.htm CHEN Yang, HU Qinhong, ZHAO Jianhua, et al. Lamina characteristics and their influence on reservoir property of lacustrine organic-rich shale in the Dongying Sag, Bohai Bay Basin[J]. Oil & Gas Geology, 2022, 43(2): 307-324. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202202006.htm
[15]	WU Jing, LIANG Chao, YANG Renchao, et al. Sequence stratigraphic control on the variations of organic matter in Eocene lacustrine shales within the Dongying Depression, eastern China[J]. Journal of Asian Earth Sciences, 2022, 237: 105353.
[16]	邱贻博, 贾光华, 刘晓峰, 等. 东营凹陷古近系构造转换及其对盆地控制作用[J]. 中国石油勘探, 2020, 25(6): 50-57. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY202006005.htm QIU Yibo, JIA Guanghua, LIU Xiaofeng, et al. Structural transformation in Paleogene and its controlling effect in Dongying Sag[J]. China Petroleum Exploration, 2020, 25(6): 50-57. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY202006005.htm
[17]	宁方兴, 王学军, 郝雪峰, 等. 济阳坳陷不同岩相页岩油赋存机理[J]. 石油学报, 2017, 38(2): 185-195. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201702006.htm NING Fangxing, WANG Xuejun, HAO Xuefeng, et al. Occurrence mechanism of shale oil with different lithofacies in Jiyang Depression[J]. Acta Petrolei Sinica, 2017, 38(2): 185-195. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB201702006.htm
[18]	王勇, 王学军, 宋国奇, 等. 渤海湾盆地济阳坳陷泥页岩岩相与页岩油富集关系[J]. 石油勘探与开发, 2016, 43(5): 696-704. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201605005.htm WANG Yong, WANG Xuejun, SONG Guoqi, et al. Genetic connection between mud shale lithofacies and shale oil enrichment in Jiyang Depression, Bohai Bay Basin[J]. Petroleum Exploration and Development, 2016, 43(5): 696-704. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201605005.htm
[19]	沈云琦, 金之钧, 苏建政, 等. 中国陆相页岩油储层水平渗透率与垂直渗透率特征: 以渤海湾盆地济阳坳陷和江汉盆地潜江凹陷为例[J]. 石油与天然气地质, 2022, 43(2): 378-389. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202202011.htm SHEN Yunqi, JIN Zhijun, SU Jianzheng, et al. Characteristics of horizontal and vertical permeability of continental shale oil reservoirs in China: a case from Jiyang Depression in Bohai Bay Basin and Qianjiang Sag in Jianghan Baisn[J]. Oil & Gas Geology, 2022, 43(2): 378-389. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT202202011.htm
[20]	刘惠民. 济阳坳陷古近系页岩油地质特殊性及勘探实践: 以沙河街组四段上亚段—沙河街组三段下亚段为例[J]. 石油学报, 2022, 43(5): 581-594. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB202205001.htm LIU Huimin. Geological particularity and exploration practice of Paleogene shale oil in Jiyang Depression: a case study of the upper submember of member 4 to the Lower submember of member 3 of Shahejie Formation[J]. Acta Petrolei Sinica, 2022, 43(5): 581-594. https://www.cnki.com.cn/Article/CJFDTOTAL-SYXB202205001.htm
[21]	黎茂稳, 金之钧, 董明哲, 等. 陆相页岩形成演化与页岩油富集机理研究进展[J]. 石油实验地质, 2020, 42(4): 489-505. doi: 10.11781/sysydz202004489 LI Maowen, JIN Zhijun, DONG Mingzhe, et al. Advances in the basic study of lacustrine shale evolution and shale oil accumulation[J]. Petroleum Geology & Experiment, 2020, 42(4): 489-505. doi: 10.11781/sysydz202004489
[22]	白静, 徐兴友, 张君峰, 等. 陆相页岩碳酸盐矿物成因及其页岩气富集作用: 以松辽盆地梨树断陷沙河子组页岩为例[J]. 中国矿业大学学报, 2022, 51(4): 742-756. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD202204011.htm BAI Jing, XU Xingyou, ZHANG Junfeng, et al. Genesis of carbonate minerals in continental shale and their roles in shale gas enrichment: a case study of the shale of Shahezi Formation in Lishu Fault Depression, Songliao Basin, NE China[J]. Journal of China University of Mining & Technology, 2022, 51(4): 742-756. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGKD202204011.htm