汪家屯地区侏罗系火山岩储层特征  

CHARACTERISTICS OF JURASSIC VOLCANIC RESERVOIR IN WANGJIATUN AREA

作　　者：李慧君[1] 陈立英[1] 童英[1] 

机构地区：[1]大庆石油管理局勘探开发研究院

出　　处：《大庆石油地质与开发》1999年第4期12-14,共3页Petroleum Geology & Oilfield Development in Daqing

摘　　要：根据汪家屯侏罗系火山岩储层的岩心资料、测井资料对其岩性、物性及测井响应特征做了较全面的分析，指出该区火山岩储层岩性按成因可划分为熔岩、火山碎屑岩和过渡岩；储层物性属低孔、低渗型，储集空间孔隙占总面孔率的９０％以上，裂缝不足５％，但对各种孔隙却起到连通作用；测井响应中的密度、自然伽马、自然能谱可将该区的安山岩、流纹岩和凝灰岩很好的区分开；利用电阻率成象、声波成象及倾角资料处理可识别裂缝；Based on core data and logging data of the Jurassic volcanic reservoir in Wangjiatun area, a comprehensive analysis of its lithology, physical properties and logging response characteristics has been made. According to lithologic origin the volcanic reservoir in this area can be divided into lava, pyroclastic rock and transitional rock, which belong to low porous and low permeable reservoirs, and the space pore is more than 90% of surface porosity and fracture is less than 5%, but the fracture can connect with various pores; Based on density, natural gamma and nature spectrum of logging response the andesite, rhyolite and tuff in this area can be divided clearly; The fracture can be identified according to resistivity imaging, acoustic imaging and dip-angle data processing; In this area the density value of logging response of volcanic rock correlate well with porosity.

关 键 词：汪家屯地区 火山岩 孔隙度 有效厚度 储集层 

分 类 号：P618.130.2[天文地球—矿床学]