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.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
1999年第4期12-14,共3页
Petroleum Geology & Oilfield Development in Daqing
关键词
汪家屯地区
火山岩
孔隙度
有效厚度
储集层
Wangjiatun area, Volcanic rock, Porosity, Effective thickness, Fracture
