全谱饱和度测井在塔河碎屑岩储层评价中的应用  

The Applications of Pulsed Neutron Spectrum Saturation Log to Clastic Rock Reservoir Evaluation in Tahe Oilfield

作　　者：王勤聪[1] 马立新[1] 许克亮[1] 邹宁[1] 

机构地区：[1]中国石化西北油田分公司工程技术研究院,新疆乌鲁木齐830011

出　　处：《测井技术》2013年第2期200-204,共5页Well Logging Technology

摘　　要：介绍全谱饱和度测井仪(PSSL)技术原理,对比不同脉冲中子测井仪器的优缺点,评价PSSL饱和度测井仪碳氧比组合中子寿命测井模式在塔河油田低孔隙度低渗透率储层中应用效果及PSSL俘获模式在凝析气藏储层中应用,通过PND俘获模式与PSSL俘获模式测井资料对比,评价仪器性能,分析时间推移测井应用。全谱饱和度测井能定量评价储层并可将储层进行精细划分;对于同一套地层,利用纵横向渗透率级差可以进行层内剩余油解释和评价。与传统脉冲中子测井对比,PSSL仪器使用范围宽,测井成本低,录取资料信息多,能有效反映储层剩余油饱和度的变化情况,为寻找潜力油层、识别水淹层提供了科学依据。We discuss the technology principle of the PSSL（Pulsed Neutron Spectrum Saturation Log） logging tool. With comparing the advantages and disadvantages of different pulse neutron logging tool, we evaluate the application effect of Carbon-Oxygen Ratio combined capture modes of PSSL logging in low porosity reservoirs and capture mode of PSSL in condensate gas reservoir in Tahe oilfield. Through the logging data contrast and analysis of PND capture mode and PSSL capture mode, we evaluate the tool performance and analyze time lapse logging application. PSSL logging mode can quantitatively evaluate reservoirs and finely divide reservoirs; can interpret and evaluate residual oil by longitudinal and vertical permeability range in the same layer. Compared with traditional pulsed neutron logging, PSSL tool has wider applications, provides rich information and lower logging cost; it can reflect changes in the remaining oil saturation in reservoirs. It provides the basis for finding potential oil layers and identification of water out lay- ers.

关 键 词：脉冲中子全谱饱和度测井 碎屑岩 低孔隙度 低渗透率 剩余油 储层评价 塔河油田 

分 类 号：P631.84[天文地球—地质矿产勘探]