| 松辽盆地中央古隆起带南部酸性侵入岩储层特征与主控因素 |
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| 引用本文： | 向钰鉥,屈伟伟,杨争光,尹永康,唐华风,王璞珺,高有峰.松辽盆地中央古隆起带南部酸性侵入岩储层特征与主控因素[J].世界地质,2022(1):162-172. |
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| 作者姓名： | 向钰鉥 屈伟伟 杨争光 尹永康 唐华风 王璞珺 高有峰 |
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| 作者单位： | 吉林大学地球科学学院;中国石油吉林油田公司勘探开发研究院;吉林大学古生物学与地层学研究中心 |
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| 基金项目： | 国家重点研发计划(2019YFC0605402);国家自然科学基金重大项目(41790453);吉林大学研究生创新基金(101832020CX200)联合资助。 |
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| 摘 要： | 通过岩芯观察、薄片鉴定、孔渗分析和测井解释等方法,对松辽盆地中央古隆起带南部基底酸性侵入岩类储层特征及优质储层主控因素进行研究.结果表明,松辽盆地中央古隆起带南部基底酸性侵入岩主要为花岗闪长岩(富铝)与二长花岗岩,储集空间以裂缝和溶蚀孔为主,平均孔隙度为3.46％,平均渗透率为0.52×10-3μm2.优质储层主控因素...
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| 关 键 词： | 松辽盆地 中央古隆起带南部 基岩 酸性侵入岩 储层主控因素 |
Reservoir characteristics and main controlling factors of acid intrusive rocks in southern part of central paleo-uplift belt,Songliao Basin |
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| XIANG Yushu,QU Weiwei,YANG Zhengguang,YIN Yongkang,TANG Huafeng,WANG Pujun,GAO Youfeng.Reservoir characteristics and main controlling factors of acid intrusive rocks in southern part of central paleo-uplift belt,Songliao Basin[J].World Geology,2022(1):162-172. |
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| Authors: | XIANG Yushu QU Weiwei YANG Zhengguang YIN Yongkang TANG Huafeng WANG Pujun GAO Youfeng |
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| Institution: | (College of Earth Sciences,Jilin University,Changchun 130061,China;Research Institute of Exploration and Development,Jilin Oilfield Company,CNPC,Songyuan 138000,Jilin,China;Research Center of Palaeontology&Stratigraphy,Jilin University,Changchun 130026,China) |
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| Abstract: | Based on the observation of cores and thin sections indentification,porosity and permeability analysis,and logging interpretation,the authors studied the reservoir characteristics and main controlling factors of high-quality reservoirs of basement acid intrusive rocks in the southern part of the central paleo-uplift of the Songliao Basin.The results show that the basement acid intrusive rocks in the Songliao Basin are mainly granodiorite(aluminum-rich)and monzongranite.The reservoir space is dominated by fractures and dissolved pores,with an average porosity of 3.46%and an average permeability of 0.52×10-3μm2.The main controlling factors of high-quality reservoirs of basement acid intrusive rocks include the lithology,mineral assemblage and development characteristics of weathering crust structure.The basement lithology and mineral composition are the internal factors for the development of high-quality reservoirs of basement in the Songliao Basin,while the transformation of basement reservoirs by weathering and leaching is the external factor.The weathering crust structure of the basement reservoirs can be divided into three parts.The weathered leaching zone is the most favorable reservoir location,the fracture zone is relatively heterogeneous,and the weathered accumulation layer and insider segment have no storage capacity. |
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| Keywords: | Songliao Basin southern part of central paleo-uplift belt basement rock acid intrusive rock main controlling factors of reservoirs |
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