摘要
准噶尔盆地西泉地区石炭系火山岩油藏中的火山岩体单个规模较小,平面展布形态缺乏规律性,储层主控因素不明朗。在岩心观察、薄片鉴定基础上,结合测井、录井、分析化验及试油等资料,对西泉地区石炭系的岩性进行了统计,对储层物性的主控因素及其平面展布规律进行了分析。结果表明:西泉地区南部构造带岩性以安山岩、火山角砾岩、凝灰岩等为主,北部构造带岩性以凝灰岩、沉积岩、安山岩等为主。南部构造带的储层物性明显好于北部构造带,其控制因素主要有岩性和岩相、构造运动、风化淋滤作用等。南部构造带的火山角砾岩、凝灰岩等喷发岩相,北部构造带的安山岩等溢流相以及它们与构造高点、裂缝发育的叠合区是油气勘探的有利区带。
The volcanic reservoirs of Carboniferous in Xiquan area of Junggar Basin are characterized by smallscalevolcanic body,and the main controlling factors are not clear.On the basis of core observation and thin sectionidentification,combined with logging,analysis and test data,a statistical analysis of the lithologies of Carboniferousin Xiquan area was carried out.The main controlling factors of reservoir physical properties and itsdistribution law were analyzed.The results show that the lithology in the southern structural belt is mainly composedof andesite,volcanic breccia and tuff,and mainly tuff,sedimentary rock and andesite in the northern structuralbelt.The reservoir properties in the southern structural belt are obviously better than that in the northernstructural belt,of which the main controlling factors are lithology,lithofacies,tectonic movement and weatheringleaching.The volcanic facies,such as volcanic breccia and tuff in the southern structural belt,the overflow faciesof andesite in the northern structural belt,and their overlap zones with the structure highs and the fracture development,are favorable plays for hydrocarbon exploration.
作者
何贤英
刘勇
许学龙
刘邦兴
张顺存
HE Xianying;LIU Yong;XU Xuelong;LIU Bangxing;ZHANG Shuncun(Zhundong Oil Production Plant,PetroChina Xinjiang Oilfield Company,Fukang 831511,Xinjiang,China;Key Laboratory of Petroleum Resources,Gansu Province/ Key Laboratory of Petroleum Resources Research,Institute of Geology and Geophysics,Chinese Academy of Sciences,Lanzhou 730000,China)
出处
《岩性油气藏》
CSCD
北大核心
2017年第3期42-51,共10页
Lithologic Reservoirs
基金
国家重大科技专项"准噶尔盆地深层火山岩储集体形成演化与分布预测"(编号:2011ZX05008-003-40)资助
关键词
火山岩储层
主控因素
石炭系
西泉地区
准噶尔盆地
volcanic reservoirs
controlling factors
Carboniferous
Xiquan area
Junggar Basin
