应用三重孔隙模型评价松辽盆地南部火石岭组火山岩储层  

Triple-Porosity Model and Its Application in Volcanic Rocks of Huoshiling Formation in the Southern Songliao Basin

作　　者：张丽华[1] 王云梅[1] 林宇晗[1] 赵建旺[1] 杨更新[1] 凌晓曦[1] 

机构地区：[1]吉林大学地球探测科学与技术学院

出　　处：《国外测井技术》2016年第5期11-15,3,共5页World Well Logging Technology

基　　金：国家自然科学基金项目(41174096)资助;国家级"大学生创新创业训练计划"项目资助(2014A62260)

摘　　要：火山岩储层成分较为复杂,一般发育有裂缝和孔洞,属于典型的多重孔隙介质储层,故定量计算火山岩储层的含油气饱和度是评价火山岩油气层的关键。本文将火山岩储层建立为由基质孔隙、裂缝和非连通孔洞组成的三重孔隙模型,并模拟为基质和裂缝的并联导电网络,以及非连通孔洞和基质/裂缝的串联导电网络的导电模型。分别用不同的测井方法求取总孔隙度、基质孔隙度和裂缝孔隙度,从而得到三重孔隙模型下的胶结指数,并代入阿尔奇公式中求取含水饱和度。将三重孔隙模型应用于松辽盆地南部火石岭组火山岩,经分析表明,储层评价精度有较大提高。Volcanic reservoirs are categorized into multi-porosity medium reservoirs.Components of volcanic reservoirs are relatively complex with fractures and vugs.Therefore,quantitative calculation of oil and gas saturation is the key to the evaluation of volcanic hydrocarbon reservoirs.This thesis applies triple-porosity model consisting of matrix porosity,fractures and non-connected vugs to volcanic reservoirs,and its resistivity can be modeled as a resistance network in which the matrix and fracture resistivity are firstly connected in parallel,and then the parallel-connected resistivity of matrix/fracture and the non-connected vug resistivity are connected in series.Different logging methods are used to obtain the total porosity,matrix porosity and fracture porosity in order to determine the cementation index m of the triple-porosity model,which is then used in the Archie formula to obtain water saturation.It indicates by analysis that applying triple-porosity model to volcanic rocks of Huoshiling formation in the southern Songliao Basin enhances the reservoir evaluation precision to a great extent.

关 键 词：火山岩储层 三重孔隙模型 裂缝孔隙度 复杂储层 储层评价 饱和度方程 

分 类 号：TE312[石油与天然气工程—油气田开发工程]