永川深层页岩气田储层特征及富集规律研究

doi:10.13809/j.cnki.cn32-1825/te.2021.01.005

摘要/Abstract

摘要：

永川深层页岩气田经过多年的勘探开发一体化实践,取得了一定的油气成果,但总体表现出不同构造区气井测试产能差异大的特征,制约了该区规模增储及效益开发。为落实该区的高产富集区带,明确勘探开发攻关方向,通过开展构造样式及断裂分布规律的精细刻画,储层特征精细描述,结合地层压力特征及生产规律分析,总结出该区深层页岩气富集的关键因素包括：厚大且稳定展布的优质页岩储层、有利的构造样式、断而不破的小规模断层、相对发育的天然裂缝、相对较大的埋深和良好的顶底板封堵能力。该区整体具有较高的含气丰度和良好的资源规模。

关键词: 富集规律, 储层特征, 优质页岩储层, 深水陆棚, 深层页岩气

Abstract:

After years of exploration and development integration practice, some achievements have been made in Yongchuan Deep Shale Gas Field. However, there is a big difference in productivity of gas well tests in different structural areas, restricting the scale of reserve increment and benefit development. In order to realize a high-yield and enrichment zone in this area and make clear the direction of exploration and development, the key factors of shale gas enrichment in the deep layer of this area, including thick and stable high-quality shale reservoir, favorable structural style, small scale faults without crush, relatively developed natural fractures, relatively large buried depth and good sealing capacity of roof and floor, are summarized through detailed characterization of structural styles and fault distribution rules, detailed description of reservoir characteristics, and analysis of formation pressure characteristics and production rules. In general, this area has high gas abundance and good resource scale.

Key words: enrichment rule, reservoir characteristics, high quality shale reservoir, deep water shelf, deep shale gas

中图分类号:

TE37

葛忠伟,欧阳嘉穗,王同,周静,郭卫星,靳利超. 永川深层页岩气田储层特征及富集规律研究[J]. 油气藏评价与开发, 2021, 11(1): 29-37.

Ge Zhongwei,Ouyang Jiasui,Wang Tong,Zhou Jing,Guo Weixingi,Jin Lichao. Reservoir characteristics and enrichment rule of Yongchuan Deep Shale Gas Field[J]. Reservoir Evaluation and Development, 2021, 11(1): 29-37.

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参考文献 17

[1]	Nie H K, Li D H, Liu G X, et al. An overview of the geology and production of the Fuling shale gas field, Sichuan Basin, China[J]. Energy Geoscience, 2020,1(3-4):147-164. doi: 10.1016/j.engeos.2020.06.005
[2]	赵圣贤, 杨跃明, 张鉴, 等. 四川盆地下志留统龙马溪组页岩小层划分与储层精细对比[J]. 天然气地球科学, 2016,27(3):470-487. doi: 10.11764/j.issn.1672-1926.2016.03.0470
	Zhao Shengxian, Yang Yueming, Zhang Jian, et al. Micro-layers division and fine reservoirs contrast of Lower Silurian Longmaxi Formation shale, Sichuan Basin, SW China[J]. Natural Gas Geoscience, 2016,27(3):470-487. doi: 10.11764/j.issn.1672-1926.2016.03.0470
[3]	石强, 陈鹏, 王秀芹, 等. 页岩气水平井高产层段判别方法及其应用——以四川盆地威远页岩气示范区下志留统龙马溪组为例[J]. 天然气工业, 2017,37(1):60-65.
	Shi Qiang, Chen Peng, Wang Xiuqin, et al. A method for identifying high-productivity intervals in a horizontal shale gas well and its application: A case study of the Lower Silurian Longmaxi Fm in Weiyuan-shale has demonstration area, Sichuan Basin[J]. Natural Gas Industry, 2017,37(1):60-65.
[4]	Wang H Y, Shi Z S, Zhao Q, et al. Stratigraphic framework of the Wufeng-Longmaxi shale in and around the Sichuan Basin, China: Implications for targeting shale gas[J]. Energy Geoscience, 2020,1(3-4):124-133. doi: 10.1016/j.engeos.2020.05.006
[5]	武恒志, 熊亮, 葛忠伟, 等. 四川盆地威远地区页岩气优质储层精细刻画与靶窗优选[J]. 天然气工业, 2019,39(3):11-20.
	Wu Hengzhi, Xiong Liang, Ge Zhongwei, et al. Fine characterization and target window optimization of high-quality shale gas reservoirs in the Weiyuan area, Sichuan Basin[J]. Natural Gas Industry, 2019,39(3):11-20.
[6]	施振生, 邱振, 董大忠, 等. 四川盆地巫溪2井龙马溪组含气页岩细粒沉积纹层特征[J]. 石油勘探与开发, 2018,45(2):339-348.
	Shi Zhensheng, Qiu Zhen, Dong Dazhong, et al. Laminae characteristics of gas-bearing shale fine-grained sediment of the Silurian Longmaxi Formation of Well Wuxi 2 in Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2018,45(2):339-348.
[7]	蔡苏阳, 肖七林, 朱卫平, 等. 川南地区五峰组—龙马溪组页岩储层纳米孔隙发育特征及其控制因素——以四川盆地南部长宁双河剖面为例[J]. 石油实验地质, 2020,42(6):920-927.
	Cai Suyang, Xiao Qilin, Zhu Weiping, et al. Characteristics and controlling factors of nano pores in shale reservoirs of Wufeng-Longmaxi formations in southern Sichuan Basin: Insights from Shuanghe outcrop in Changning area[J]. Petroleum Geology & Experiment, 2020,42(6):920-927.
[8]	谢军, 赵圣贤, 石学文, 等. 四川盆地页岩水平井高产的地质主控因素[J]. 天然气工业, 2017,37(7):1-12.
	Xie Jun, Zhao Shengxianz, Shi Xuewen, et al. Main geological factors controlling high production of horizontal shale gas wells in the Sichuan Basin[J]. Natural Gas Industry, 2017,37(7):1-12.
[9]	杨洪志, 赵圣贤, 刘勇, 等. 泸州区块深层页岩气富集高产主控因素[J]. 天然气工业, 2019,39(11):55-63.
	Yang Hongzhi, Zhao Shengxian, Liu Yong, et al. Main controlling factors of enrichment and high-yield of deep shale gas in the Luzhou Block, southern Sichuan Basin[J]. Natural Gas Industry, 2019,39(11):55-63.
[10]	郭伟. 四川威远区块页岩气水平井产量差异分析[J]. 科学技术与工程, 2018,18(1):228-233.
	Guo Wei. Differentiation analysis on shale gas production of the horizontal wells in Sichuan Weiyuan Block[J]. Science Technology and Engineering, 2018,18(1):228-233.
[11]	谢军, 赵圣贤, 石学文, 等. 四川盆地页岩气水平井高产的地质主控因素[J]. 天然气工业, 2017,37(7):1-12
	Xie Jun, Zhao Shengxian, Shi Xuewen, et al. Main geological factors controlling high production of horizontal shale gas wells in the Sichuan Basin[J]. Natural Gas Industry, 2017,37(7):1-12
[12]	贾成业, 贾爱林, 何东博, 等. 页岩气水平井产量影响因素分析[J]. 天然气工业, 2017,37(4):80-88.
	Jia Chengye, Jia Ailin, He Dongbo, et al. Key factors influencing shale gas horizontal well production[J]. Natural Gas Industry, 2017,37(4):80-88.
[13]	位云生, 齐亚东, 贾成业, 等. 四川盆地威远区块典型平台页岩气水平井动态特征及开发建议[J]. 天然气工业, 2019,39(1):81-86.
	Wei Yunsheng, Qi Yadong, Jia Chengye, et al. Production performance of and development measures for typical platform horizontal wells in the Weiyuan Shale Gas Field, Sichuan Basin[J]. Natural Gas Industry, 2019,39(1):81-86
[14]	薛培, 张丽霞, 梁全胜, 等. 页岩吸附超临界CH₄的热力学特征[J]. 天然气地球科学, 2020,31(9):1261-1270.
	Xue Pei, Zhang Lixia, Liang Quansheng, et al. Isothermal adsorption properties of supercritical methane on shale[J]. Natural Gas Geoscience, 2020,31(9):1261-1270.
[15]	陈璐, 胡志明, 熊伟, 等. 页岩气扩散实验与数学模型[J]. 天然气地球科学, 2020,31(9):1285-1293.
	Chen Lu, Hu Zhiming, Xiong Wei, et al. Diffusion experiment of shale gas and mathematical model[J]. Natural Gas Geoscience, 2020,31(9):1285-1293.
[16]	胡志明, 刘玉章, 吴建发, 等. 龙马溪组页岩高压等温吸附规律研究[J]. 天然气工业, 2017,37(S1):49-57.
	Hu Zhiming, Liu Yuzhang, Wu Jianfa, et al. Study on high pressure isothermal adsorption law of Longmaxi formation shale[J]. Natural gas industry, 2017,37(S1):49-57.
[17]	吴靖, 胡宗全, 谢俊, 等. 四川盆地及周缘五峰组—龙马溪组页岩有机质宏微观赋存机制[J]. 天然气工业, 2018,38(8):23-32.
	Wu Jing, Hu Zongquan, Xie Jun, et al. Macro-micro occurrence mechanism of organic matters in Wufeng-Longmaxi shale in the Sichuan Basin and its peripheral areas[J]. Natural Gas Industry, 2018,38(8):23-32.