准噶尔盆地西北缘九区石炭系火山岩油藏储层特征及控制因素  

CHARACTERISTICS AND CONTROLLING FACTORS OF CARBONIFEROUS VOLCANIC RESERVOIR IN THE NINTH BLOCK OF NORTHWESTERN JUNGGAR BASIN

作　　者：肖春林[1] 李乃高[1] 金萍[1] 王辉[1] 胡俊新[1] 

机构地区：[1]中油新疆油田公司采油二厂,新疆克拉玛依834008

出　　处：《新疆石油天然气》2010年第3期6-10,共5页Xinjiang Oil & Gas

摘　　要：目前九区石炭系油藏存在开发效果差,部分井无接替层的现状,针对这些问题,利用岩芯、薄片、扫描电镜等手段,从火山岩岩性、岩相特征、孔隙特征、储层物性等方面研究了准噶尔盆地西北缘九区石炭系火山岩储层特征,分析了火山岩储层储集空间类型、物性特征以及储层物性的影响因素。研究结果表明:区内火山岩储层主要为火山熔岩、碎屑岩和变质岩类;孔隙类型主要为次生孔隙;储集空间为气孔、残余孔、溶蚀孔、裂缝等;储层物性影响因素主要有火山岩的岩性、岩相、后期风化淋滤和断裂改造等。Currently,there are many problems in the carboniferous reservoir at the ninth block,resulting in poor results of the exploitation and some wells without replacement layer.To address these issues,using core,thin section,scanning electron microscopy and other means,from volcanic lithology,lithofacies characteristics,pore characteristics,reservoir physical properties,the reservoir characteristics of Carboniferous volcanic reservoirs in the ninth block of northwestern Junggar Basin are researched and the reservoir spaces type is analyzed,so are physical properties and the controlling factors of reservoir propreties.The results show that:the main volcanic reservoir of this area is volcanic lava,clastic rocks and metamorphic rocks;pore types are mainly secondary porosity;the reservoir spaces are pore spaces,residual holes,corrosion holes,cracks,etc.;the main factors affecting reservoir physical properties are the lithologies of volcanic,lithofacies,weathering,leaching,and fracture later transformation.

关 键 词：准噶尔盆地 九区 石炭系 火山岩 储层特征 控制因素 

分 类 号：TE122.23[石油与天然气工程—油气勘探]