Origin and significance of "sweet spots" of analcites in shale oil reservoirs in Permian Lucaogou Formation, Jimsar Sag, Junggar Basin

MA Cong; WANG Jian; PAN Xiaohui; CHEN Jun; SHANG Ling; LIU Jin

doi:10.11781/sysydz202004596

Volume 42 Issue 4

Jul. 2020

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MA Cong, WANG Jian, PAN Xiaohui, CHEN Jun, SHANG Ling, LIU Jin. Origin and significance of 'sweet spots' of analcites in shale oil reservoirs in Permian Lucaogou Formation, Jimsar Sag, Junggar Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2020, 42(4): 596-603. doi: 10.11781/sysydz202004596

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MA Cong, WANG Jian, PAN Xiaohui, CHEN Jun, SHANG Ling, LIU Jin. Origin and significance of "sweet spots" of analcites in shale oil reservoirs in Permian Lucaogou Formation, Jimsar Sag, Junggar Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2020, 42(4): 596-603. doi: 10.11781/sysydz202004596

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Origin and significance of "sweet spots" of analcites in shale oil reservoirs in Permian Lucaogou Formation, Jimsar Sag, Junggar Basin

doi: 10.11781/sysydz202004596

MA Cong^{1, 2
,},
WANG Jian^{1, 2},
PAN Xiaohui³,
CHEN Jun^{1, 2},
SHANG Ling^{1, 2},
LIU Jin^{1, 2}

1.
Xinjiang Key Laboratory of Shale Oil Exploration and Development, Karamay, Xinjiang 834000, China
2.
Experimental Testing Institute of Xinjiang Oilfield Branch Company, PetroChina, Karamay, Xinjiang 834000, China
3.
Exploration and Exploitation Institute of Xinjiang Oilfield Branch Company, PetroChina, Karamay, Xinjiang 834000, China

Received Date: 2020-01-09
Rev Recd Date: 2020-06-05
Publish Date: 2020-07-28

Abstract

Abstract

As a hydrocarbon indicating mineral, analcite was always found in shale oil reservoirs and has good correspondence with "sweet spots" in the Lucaogou Formation, Jimsar Sag, Junggar Basin. The petrographic and mineralogical characteristics as well as geologic origins of analcite were studied using a polarized light microscope, whole rock XRD analysis, electron probe BSE image analysis and mineral energy spectrum, in order to discuss its significance for shale oil "sweet spots". The analcite is mainly found in sedimentory tuff and carbonate tuff with some in tuff dolomite, and the analcite rock is very rare. The occurrence of analcite in rocks is lamellar, granular, massive and vein-shaped. Analcite was formed in high salinity, alkaline, low temperature hydrothermal conditions. The diagenetic transformation of non-volcanic material during burial forms authigenic analcite. Secondary analcite was formed by reaction and dissolution of volcanic material and hydrothermal during volcanic jetting. Analcite cements in the early diagenesis protected native porosity, and afforded the formation of secondary solution pores during mid and late diagenesis which has a good correspondence with shale oil "sweet spots".
- shale oil,
- analcite,
- secondary dissolved pore,
- Lucaogou Formation,
- Jimsar Sag,
- Junggar Basin

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References(17)

References

[1]	邹才能, 张国生, 杨智, 等. 非常规油气概念、特征、潜力及技术: 兼论非常规油气地质学[J]. 石油勘探与开发, 2013, 40(4): 385-399. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201304000.htm ZOU Caineng, ZHANG Guosheng, YANG Zhi, et al. Geological concepts, characteristics, resource potential and key techniques of unconventional hydrocarbon: on unconventional petroleum geology[J]. Petroleum Exploration and Development, 2013, 40(4): 385-399. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201304000.htm
[2]	朱世发, 朱筱敏, 王绪龙, 等. 准噶尔盆地西北缘二叠系沸石矿物成岩作用及对油气的意义[J]. 中国科学(地球科学), 2011, 41(11): 1602-1612. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201111006.htm ZHU Shifa, ZHU Xiaomin, WANG Xulong, et al. Zeolite diage-nesis and its control on petroleum reservoir quality of Permian in northwestern margin of Junggar Basin, China[J]. Science China (Earth Sciences), 2012, 55(3): 386-396. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201111006.htm
[3]	孙玉善, 刘新年, 张艳秋, 等. 中国西部地区方沸石胶结相与碎屑岩次生优质储集层形成机制[J]. 古地理学报, 2014, 16(4): 517-526. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201404008.htm SUN Yushan, LIU Xinnian, ZHANG Yanqiu, et al. Analcite cementation facies and forming mechanism of high-quality secondary clastic rock reservoirs in Western China[J]. Journal of Palaeogeography, 2014, 16(4): 517-526. https://www.cnki.com.cn/Article/CJFDTOTAL-GDLX201404008.htm
[4]	张跃, 陈世悦, 孟庆爱, 等. 黄骅坳陷沧东凹陷孔二段细粒沉积岩中方沸石的发现及其地质意义[J]. 中国石油勘探, 2015, 20(4): 37-43. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201504005.htm ZHANG Yue, CHEN Shiyue, MENG Qing'ai, et al. The discovery of analcite in fine-grained sedimentary rocks of the second member of Kongdian Formation in Cangdong Sag, Huanghua Depression: implications for early digenetic environment[J]. China Petroleum Exploration, 2015, 20(4): 37-43. https://www.cnki.com.cn/Article/CJFDTOTAL-KTSY201504005.htm
[5]	匡立春, 高岗, 向宝力, 等. 吉木萨尔凹陷芦草沟组有效源岩有机碳含量下限分析[J]. 石油实验地质, 2014, 36(2): 224-229. doi: 10.11781/sysydz201402224 KUANG Lichun, GAO Gang, XIANG Baoli, et al. Lowest limit of organic carbon content in effective source rocks from Lucaogou Formation in Jimusar Sag[J]. Petroleum Geology & Experiment, 2014, 36(2): 224-229. doi: 10.11781/sysydz201402224
[6]	斯春松, 陈能贵, 余朝丰, 等. 吉木萨尔凹陷二叠系芦草沟组致密油储层沉积特征[J]. 石油实验地质, 2013, 35(3): 528-533. doi: 10.11781/sysydz201305528 SI Chunsong, CHEN Nenggui, YU Chaofeng, et al. Sedimentary characteristics of tight oil reservoir in Permian Lucaogou Formation, Jimsar Sag[J]. Petroleum Geology & Experiment, 2013, 35(3): 528-533. doi: 10.11781/sysydz201305528
[7]	方世虎, 徐怀民, 宋岩, 等. 准噶尔盆地东部吉木萨尔凹陷复合含油气系统特征及其演化[J]. 地球学报, 2005, 26(3): 259-264. https://www.cnki.com.cn/Article/CJFDTOTAL-DQXB200503011.htm FANG Shihu, XU Huaimin, SONG Yan, et al. Characteristics and evolution of the composite petroleum system in Jimsar Depression, eastern Junggar Basin[J]. Acta Geoscientica Sinica, 2005, 26(3): 259-264. https://www.cnki.com.cn/Article/CJFDTOTAL-DQXB200503011.htm
[8]	杨帆, 胡烨, 罗开平, 等. 中国中西部地区关键构造变革期次及变形特征[J]. 石油实验地质, 2019, 41(4): 475-481. doi: 10.11781/sysydz201904475 YANG Fan, HU Ye, LUO Kaiping, et al. Tectonic evolution stages and deformation characteristics in Central and Western China[J]. Petroleum Geology & Experiment, 2019, 41(4): 475-481. doi: 10.11781/sysydz201904475
[9]	徐旭辉, 方成名, 刘金连, 等. 中国中西部山前构造变形结构分带模式与油气[J]. 石油实验地质, 2019, 41(6): 779-790. doi: 10.11781/sysydz201906779 XU Xuhui, FANG Chengming, LIU Jinlian, et al. Deformation zoning model of piedmont thrust, Western China, and its petro-leum response[J]. Petroleum Geology & Experiment, 2019, 41(6): 779-790. doi: 10.11781/sysydz201906779
[10]	蒋宜勤, 柳益群, 杨召, 等. 准噶尔盆地吉木萨尔凹陷凝灰岩型致密油特征与成因[J]. 石油勘探与开发, 2015, 42(6): 741-749. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201506007.htm JIANG Yiqin, LIU Yiqun, YANG Zhao, et al. Characteristics and origin of tuff-type tight oil in Jimusar Depression, Junggar Basin, NW China[J]. Petroleum Exploration and Development, 2015, 42(6): 741-749. https://www.cnki.com.cn/Article/CJFDTOTAL-SKYK201506007.htm
[11]	令伟伟. 准噶尔盆地东部火烧山地区平地泉组方沸石特征及成因分析[D]. 西安: 西北大学, 2017. LING Weiwei. Occurrence and origin analysis of analcime in Pingdiqian Formation, Huoshaoshan area, eastern Junga Basin, Xinjiang, China[D]. Xi'an: Northwest University, 2017.
[12]	常丽华, 陈曼云, 金巍, 等. 透明矿物薄片鉴定手册[M]. 北京: 地质出版社, 2006. CHANG Lihua, CHEN Manyun, JIN Wei, et al. Transparent mineral sheet identification manual[M]. Beijing: Geological Publishing House, 2006.
[13]	李红, 柳益群, 梁浩, 等. 三塘湖盆地二叠系陆相热水沉积方沸石岩特征及成因分析[J]. 沉积学报, 2012, 30(2): 205-218. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB201202002.htm LI Hong, LIU Yiqun, LIANG Hao, et al. Lithology and origin analysis of sublacustrine hydrothermal deposits characterized by anal-cime, sanidine, dolomite, quartz, etc. in Lucaogou Formation, Middle Permian, Santanghu Basin, northeast Xinjiang, China[J]. Acta Sedi-mentologica Sinica, 2012, 30(2): 205-218. https://www.cnki.com.cn/Article/CJFDTOTAL-CJXB201202002.htm
[14]	FAURE G. Principles of isotope geology[M]. 2nd ed. New York: John Wiley and Sons, 1986: 160-230.
[15]	HORVÁTH L, GAULT R A. The mineralogy of Mont Saint-Hilaire, Quebec[M]. Mineralogical Record, 1990, 21: 283-359.
[16]	COOMBS D S, WHETTEN T. Composition of analcime from sedi-mentary and burial metamorphic rocks[J]. GSA Bulletin, 1967, 78(2): 269-282. doi: 10.1130/0016-7606(1967)78[269:COAFSA]2.0.CO;2
[17]	戴长禄. 天然沸石形成条件和成因类型[M]. 北京: 科学出版社, 1982. DAI Changlu. Formation conditions and genetic types of natural analcite[M]. Beijing: Science Press, 1982.

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Origin and significance of "sweet spots" of analcites in shale oil reservoirs in Permian Lucaogou Formation, Jimsar Sag, Junggar Basin

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Origin and significance of "sweet spots" of analcites in shale oil reservoirs in Permian Lucaogou Formation, Jimsar Sag, Junggar Basin

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