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引用本文:袁 丹1 郗爱华1 刘 文2 熊益学1 周 慧1 刘豇瑜3. 准噶尔盆地滴西地区火山岩爆发相特征及储集性能影响因素[J]. 中国地质, 2013, 40(2): 414-422.
YUAN Dan1, XI Ai-hua1, LIU Wen2, XIONG Yi-xue1, ZHOU Hui1, LIU Jiang-yu1. Characteristics of volcanic explosive facies and factors influencing reservoir performance in Dixi area, Junggar Basin[J]. Geology in China, 2013, 40(2): 414-422(in Chinese with English abstract).
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准噶尔盆地滴西地区火山岩爆发相特征及储集性能影响因素
袁 丹1 郗爱华1 刘 文2 熊益学1 周 慧1 刘豇瑜31,2,3
1.西南石油大学资源与环境学院,四川 成都 610500;2.中国石油长庆油田公司,陕西 西安 710054;3.中国石油塔里木油田公司,新疆 库尔勒 841000
摘要:
提要:爆发相火山岩是火山碎屑不同形式的组合体,根据火山碎屑的类型和组合方式可以划分为空落亚相、热基浪亚相、热碎屑流亚相和溅落亚相共4个亚相,每个亚相都有其独特的判别标志。克拉美丽滴西地区爆发相火山岩的岩心、普通薄片、铸体薄片以及测井资料研究发现,该区域岩性复杂,爆发相火山岩主要赋存在滴西10井区和滴西14井区范围内,岩性以火山凝灰岩、火山角砾岩、熔结凝灰岩和熔结火山角砾岩为主。爆发相的储集空间以基质溶孔、粒内溶孔、构造裂缝和溶蚀缝为特征。爆发相各亚相中,以熔结凝灰岩为主的热碎屑流亚相和以火山凝灰岩为主的空落亚相为优质储集体发育部位,主要影响因素为构造作用和流体的溶蚀作用。这项研究为判别其他相似地区爆发相火山岩能否成为有效储层提供参考意义。
关键词:  火山岩储层  爆发相  石炭系火山岩  克拉美丽气田  准噶尔盆地
DOI:
分类号:
基金项目:国家重点基础研究发展计划(973)项目(2007CB209507)资助。
Characteristics of volcanic explosive facies and factors influencing reservoir performance in Dixi area, Junggar Basin
YUAN Dan1, XI Ai-hua1, LIU Wen2, XIONG Yi-xue1, ZHOU Hui1, LIU Jiang-yu11,2,3
1. Department of Resource and Environment, Southwest Petroleum University, Chengdu 610500, Sichuan, China;2. PetroChina Changqing Oilfield Company, Xi'an 710054, Shaanxi, China;3.PetroChina Tarim oilfield company, kuerle 841000, Xinjiang, China
Abstract:
Abstract:The explosive facies volcanic rock is a combination of different forms of pyroclastic materials. According to the classifications and the combinations of the pyroclastic materials, the explosive facies can be divided into airfall, thermal base surge, thermal debris flow and splash sub-facies. Each sub-facies has its own unique discrimination criteria. Studies show that the lithology is complex and the explosive facies volcanic rocks are mainly distributed in Dixi 10 and 14 well areas in Kelameili Dixi area, as evidenced by the observation of volcanic rocks core, ordinary thin section and casting thin section as well as the analysis of logging data. The lithology is dominated by volcanic tuff, volcanic breccia, ignimbrite and welded volcanic breccia. The reservoir space of explosive facies is characterized by matrix solution pores, intragranular solution pores, structural fractures and dissolution fissure. The ignimbrite-dominated thermal debris flow sub-facies and volcanic tuff-dominated airfall sub-facies are the high-quality well-developed reservoir sites among all sub-facies. The tectonism and the dissolution of fluid are the main factors for the reservoir. The results of the study will provide a reference for the judgement of a volcanic rock reservoir as to whether it is a valuable reservoir or not in the similar area.
Key words:  volcanic rocks reservoir  explosive facies  Carboniferous volcanic rocks  Kelameili gas field  Junggar basin