碳酸盐岩储集层测井解释方法在塔中地区的应用

碳酸盐岩储集层的评价可采用多种测井方法和信息:即利用测井资料计算储集层总孔隙度和裂缝孔隙度,并将这两种孔隙度用于储集层的评价;采用大量的试油井段数据作各种交会图,对储集层进行分类和分段,确定各类储集层参数值域范围;应用测井新技术,包括井壁成象(FMI)、方位电阻率测井(ARI)和偶极声波测井(DSI)确定储集空间类型、缝洞定量特征、储集层有效性和连通渗滤性;利用测井资料进行精细定量地层对比和精细构造研究。综合运用这些方法对塔中地区奥陶系碳酸盐岩储集层进行分析,阐明了储集层分布特征和储集性能的控制因素。

CARBONATE RESERVOIR LOGGING INTERPRETATION AND ITS APPLICATIONS INTAZHONG AREA

This paper illustrates that multiple logging method and their information can be used in carbonate reservoir evaluation. The reservoir total porosity and fissures porosity are calculated using logging data and the both porosity are applied to reservoir evaluation. A large number of tested well data is used for cross plotting, classifying and zoning reservoir, and determining the threshold of each type of reservoir parameters. Several new logging techniques (including FMI, ARI and DSI) are adopted to determine kinds of reservoir space, quantitative characters of fissure and cavity, reservoir effectiveness and connected percolation. All these logging data are applied to fine quantitative stratigraphic correlation and fine structure research. These methods and techniques are comprehensively used to analyze Ordovician fissure carbonate reservoir in Tazhong area of Tarim Basin, and the results elaborated reservoir distribution characteristics and controlling factors of reservoir features in the area.