黔北正安地区五峰组—龙马溪组页岩气地质特征及有利区预测

doi:10.19388/j.zgdzdc.2020.03.03

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Abstract In order to determine the shale gas geological characteristics of Wufeng Formation in upper Ordovician and Longmaxi Formation in Lower Silurian of Zheng'an area in Northern Guizhou, the authors used geology survey,gravity,magnetic,two dimensional seismic,geological well and test analysis methods to carry out 1:50000 shale gas basic geology survey. The distribution, depositional environment, organic geochemical, mineral composition, reservoir properties and hydrocarbon content and other characteristics of Wufeng-Longmaxi Formation rich organic shale were obtained. The results show that the rich organic shale belongs to deep water continental shelf facies, mainly distributed in Anchang, Banzhu and Nigao syncline, with a thickness of 14.5-55 m and burial depth of 0-3 200 m. The TOC content is between 1.0% and 4.0%, and the vitrinite reflectance (R_o) is between 1.82% and 2.23%, with the organic matter type mainly I kerogen. The rocks are mainly composed of quartz, feldspar and clay minerals. The brittle mineral content is high, generally more than 50%. The porosity is generally between 2.03% and 3.89%,and the permeability is generally between 0.35×10^-5 μm² and 1.86×10^-5 μm², showing the characteristics of low porosity and low permeability. The highest gas content is 2.88m³/t, showing good gas content characteristics. Three favorable target areas for the shale gas in Zheng’an area were identified through comprehensive analysis and evaluation optimization, that is Anchang,Banzhu and Nigao block respectively, which provides exploration direction for shale gas exploration and development in the study area.

Key words： Zheng’an area Wufeng-Longmaxi Formation organic geochemical characteristics gas-bearing property favorable areas prediction

Received: 24 May 2019

ZTFLH:	TE132.2
	P618.13

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	Articles by authors
	HE Yongzhong
	XIANG Kunpeng
	AN Yayun
	YI Chengxing
	YANG Zhongqin
	YU Ning

Cite this article:

HE Yongzhong,XIANG Kunpeng,AN Yayun, et al. Geological characteristics and favorable areas prediction of shale gas in Wufeng-Longmaxi Formation in Zheng’an area of Northern Guizhou[J]. , 2020, 7(3): 21-29.

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http://www.zgdzdcbjb.com/EN/10.19388/j.zgdzdc.2020.03.03 OR http://www.zgdzdcbjb.com/EN/Y2020/V7/I3/21

[1] 贵州省国土资源厅.贵州页岩气资源调查评价报告[R].贵阳:贵州省国土资源厅,2013:14-413.
[2] 栾锡武. 中国页岩气开发的实质性突破[J].中国地质调查,2016,3(1):7-13.
[3] 包书景,李世臻,徐兴友,等.全国油气资源战略选区调查工程进展与成果[J].中国地质调查,2019,6(2):1-17.
[4] 贵州省地质矿产局.贵州省区域地质志[M].北京:地质出版社,1987.
[5] 贵州省地质局区调队.1:20万正安幅区域地质调查报告[R].贵阳:贵州省革命委员会地质局,1970:25-83.
[6] 贵州省地质局区调队.1:20万正安幅区域地质矿产调查报告[R].贵阳:贵州省革命委员会地质局,1970:12-46.
[7] 四川省地质局区调队.1:20万南川幅区域地质调查报告[R].成都:四川省地质局,1977:17-65.
[8] 四川省地质局区调队.1:20万南川幅区域地质调查报告(矿产部分)[R].成都:四川省地质局,1977:8-48.
[9] 陈厚国,贺永忠,朱勋,等.贵州1:5万水塘坝、新洲、庙塘、正安县幅区域地质调查报告[R].2013:14-195.
[10] 姚益祥,于宁,陈仁,等.贵州1:5万旧城、镇南、格林、务川、中观音、丰乐幅区域地质调查报告[R].2014:16-175.
[11] 刘伟,许效松,余谦,等.中上扬子晚奥陶世赫南特期岩相古地理[J].成都理工大学学报:自然科学版,2012,39(1):32-39.
[12] 张金川,聂海宽,徐波,等.四川盆地页岩气成藏地质条件[J].天然气工业,2008,28(2):151-156.
[13] 张明春,张维生,郭英海.川东南—黔北地区龙马溪组沉积环境及对烃源岩的影响[J].地学前缘,2012,19(1):136-145.
[14] 赵磊,贺永忠,杨平,等.黔北下古生界烃源层系特征与页岩气成藏初探[J].中国地质,2015,42(6):1931-1943.
[15] 张厚福,方朝亮,高先志,等.石油地质学[M].北京:石油工业出版社,2004:83-100.
[16] 王玉满,董大忠,李建忠,等.川南下志留统龙马溪组页岩气储层特征[J].石油学报,2012,33(4):551-561.
[17] 翟刚毅,包书景,庞飞,等.贵州遵义地区安场向斜"四层楼"页岩油气成藏模式研究[J].中国地质,2017,44(1):1-12.
[18] 金之钧,胡忠全,高波,等.川东南地区五峰组—龙马溪组页岩气富集与高产控制因素[J].地学前缘,2016,23(1):1-10.
[19] 张士万,孟志勇,郭战峰,等.涪陵地区龙马溪组页岩储层特征及其发育主控因素[J].天然气工业,2014,34(12):16-24.
[20] 葛明娜,庞飞,包书景.贵州遵义五峰组—龙马溪组页岩微观孔隙特征及其对含气性控制——以安页1井为例[J].石油实验地质,2019,41(1):23-30.
[21] 李斌,郭庆勇,罗群,等.四川盆地东部龙马溪组页岩气成藏地质条件对比分析[J].中国地质调查,2018,5(4):25-32.
[22] 王进,包汉勇,陆亚秋,等.涪陵焦石坝地区页岩气赋存特征定量表征及其主控因素[J].地球科学,2019,44(3):1001-1011.
[23] 张烈辉,唐洪明,陈果,等.川南下志留统龙马溪组页岩吸附特征及控制因素[J].天然气工业,2014,34(12):63-69.
[24] 页岩气资源潜力评价方法与有利区优选标准操作手册(讨论稿)[R].北京:国土资源部油气资源战略研究中心,中国地质大学(北京),2011.