摘要
针对32口井665.56m岩心、470块岩矿薄片、666个物性分析样品以及82口井测井等资料,对克拉玛依油田六七区石炭系火山岩的岩性、物性以及孔隙结构特征进行了研究,结果表明该区影响火山岩储层的主要因素主要有地层埋深、岩性以及裂缝影响,最有利的储集区位于六区南部和七中区。研究区岩石类型主要为火山熔岩类、火山碎屑岩类和沉积岩类,火山岩储层主要岩性为角砾熔岩和玄武岩;孔隙度、渗透率较低;储集空间以气孔、晶间孔、溶蚀孔和原生裂缝为主;有利火山岩储层主要分布于六区南部、西北部以及七中区。
Characteristics of lithology,physical and pore structure of the Carboniferous volcanic rocks in the 6th and the 7th districts of Karamay oil field are studied through observation and analysis of drilling cores of 665.56meters long from 32drilling wells,470thin sections,666physical analysis samples and 82drilling wells logging data.It is showed that burial depth of layers,lithology and fractures are 3main factors influencing the reservoirs in this area,and the most favorable reservoir is located in the south of the 6district and the middle of the 7district.Pyroclastic rock and sedimentary rock are the main rock types in the area and the major lithology of volcanic rock reservoir is breccias lava and basalt characteristic of low porosity and permeability.Reservoir space is dominated by stoma,intercrystal pore,vug and pre-existing fractures.The favorable reservoir mainly distributes in the south and northwest of 6district and in the middle of 7district.
出处
《矿物岩石》
CAS
CSCD
北大核心
2013年第2期102-108,共7页
Mineralogy and Petrology
关键词
克拉玛依油田
六七区
火山岩
储层
影响因素
储层分布
Karamay oil field
the 6th and 7th Districts
volcanic rock
reservoirs
influencing factors
reservoir distribution
