汪家屯、安达—宋站地区火山岩储层“四性”特征及储层流体性质识别研究

徐深气田汪家屯、安达-宋站地区火山岩储层岩性复杂,不仅发育有酸性火山岩,还发育了大面积的中基性火山岩,在对研究区内不同火山岩储层岩性、物性、电性、含气性特征进行系统分析后发现,不同岩性储层"四性"关系特征有很大差异,由于测井响应是岩石成份、孔缝发育程度和流体性质等的综合反映,因此将测井响应与"四性"关系特征相结合,同时应用岩心、测试、录井等资料对研究区内营城组火山岩储层流体性质进行了识别。

The Characteristics of Volcanic Reservoirs and the Research of Identification of Reservoir Fluid Property in Wangjiatun and Anda-Songzhan Areas

The volcarnic lithologies in Wangjiatun and Anda-Songzhan area of Xushen gas field are complex.There are not only developed acidic vol- canic rocks but also extensive intermediate-basic volcanic rocks.After systematical analysis of the lithology,physical property,electrical property and gas-bearing characteristic of different volcanic reservoirs in the area,it is found that there are big differences in the"four properties"relationship of the reservoirs with different lithologies.Because well logging response is an integrated response of rock ele- ments,fracture development degree and fluid property,etc.,the fluid properties of volcanic reservoirs in Yingcheng group are identified through combination of logging response and the characteristics of the"four properties"relationship as well as core,testing,and mud log- ging data,etc.