准噶尔盆地西北缘中拐凸起——五、八区火山岩岩相特征
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摘要
通过岩心观察、薄片鉴定、测井和录井等资料分析,结合地震资料解释,对准噶尔盆地西北缘中拐凸起—五、八区石炭系、二叠系的火山岩岩相进行了研究,在单井相分析、剖面相分析的基础上,作出了研究区石炭系和二叠系佳木河组下亚组的岩相分布平面图:石炭系主要是火山岩,在东北部、中部和西南角为安山岩,东部广大区域和南部为凝灰岩,西南部为火山-沉积岩,西北部为安山岩、凝灰岩、火山-沉积岩等多种岩性,火山角砾岩和玄武岩零星分布于西部偏北部位。二叠系佳木河组下亚组分为2段,从下到上,岩性与石炭系虽然有一定的继承性,但其上段岩相表现为火山-沉积岩增多而凝灰岩减少、安山岩增多而玄武岩减少,可能是火山活动趋于减弱和停止的缘故。
The core observation,slices appraisal,well-logging and logging data analysis are conducted for study of volcanic lithologies of Carboniferous and Permian from Zhongguai swell to District-5 and District-8 in northwestern margin of Junggar basin,combining with seismic data interpretation.On the basis of single well facies and section facies analyses,the plane distribution map of lithofacies of Carboniferous and sub-group of Jiamuhe formation of Permian is plotted.The Carboniferous in this area is dominated by volcanic rocks,with some andesites in the northeast,central and southwest;tuff in vast east area and the south,volcanic-sedimentary rocks in the southwest,these multi-rocks in the northwest,and volcanic breccia and basalt scattered near the west.The sub-group of Jiamuhe is also divided into two sections,from bottom to top,the rocks has some continuity with Carboniferous,but the lithofacies of upper section shows increase of andesite and volcanic-sedimentary rocks,and decrease of basalt and tuff,which may owing to volcanic activity tending to diminish and cease.
The core observation,slices appraisal,well-logging and logging data analysis are conducted for study of volcanic lithologies of Carboniferous and Permian from Zhongguai swell to District-5 and District-8 in northwestern margin of Junggar basin,combining with seismic data interpretation.On the basis of single well facies and section facies analyses,the plane distribution map of lithofacies of Carboniferous and sub-group of Jiamuhe formation of Permian is plotted.The Carboniferous in this area is dominated by volcanic rocks,with some andesites in the northeast,central and southwest;tuff in vast east area and the south,volcanic-sedimentary rocks in the southwest,these multi-rocks in the northwest,and volcanic breccia and basalt scattered near the west.The sub-group of Jiamuhe is also divided into two sections,from bottom to top,the rocks has some continuity with Carboniferous,but the lithofacies of upper section shows increase of andesite and volcanic-sedimentary rocks,and decrease of basalt and tuff,which may owing to volcanic activity tending to diminish and cease.
引文
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[10]王璞珀君,吴河勇,庞颜明,等.松辽盆地火山岩相:相序、相模式与储层物性的定量关系[J].吉林大学学报(地球科学版),2006,36(5):805-812.
[11]张顺存,王凌,石新璞,等.准噶尔盆地腹部陆西地区石炭系火山岩储层的物性特征及其与电性的关系[J].天然气地球科学,2008,19(2):198-203.
(1)史基安,张顺存,孙国强,等.中拐—五、八区二叠系储层成因分析及物性主控因素研究,2009.
[2]陶国亮,胡文,张义杰,等.准噶尔盆地西北缘北西向横断裂与油气成藏[J].石油学报,2006,27(4):23-28.
[3]朱国华,蒋宜勤,李娴静.克拉玛依油田中拐-五八区佳木河组火山岩储集层特征[J].新疆石油地质,2008,29(4):445-447.
[4]代诗华,罗兴平,王军,等.火山岩储集层测井响应与解释方法[J].新疆石油地质,1998,19(6):465-469.
[5]陈建文.火山岩岩性的测井识别[J].地学前缘.2000,7(4):458.
[6]代诗华,姜淑云,王军.准噶尔盆地石西油田火山岩储集层的测井描述[J].新疆石油地质,1997,18(2):125-129.
[7]邵正奎,孟宪禄,王洪艳,等.松辽盆地火山岩地震反射特征及其分布规律[J].长春科技大学学报.19992,9(1):33-36.
[8]姚新玉,何正怀,吴建华.准噶尔盆地火山岩地震相及发布特征[J].新疆石油地质,1994,15(3):214-219.
[9]颜耀敏,王英民,祝彦贺,等.准噶尔盆地西北缘五、八区佳木河组含火山岩系沉积模式[J].天然气地球科学,2007,18(3):386-388.
[10]王璞珀君,吴河勇,庞颜明,等.松辽盆地火山岩相:相序、相模式与储层物性的定量关系[J].吉林大学学报(地球科学版),2006,36(5):805-812.
[11]张顺存,王凌,石新璞,等.准噶尔盆地腹部陆西地区石炭系火山岩储层的物性特征及其与电性的关系[J].天然气地球科学,2008,19(2):198-203.
(1)史基安,张顺存,孙国强,等.中拐—五、八区二叠系储层成因分析及物性主控因素研究,2009.
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