PNST脉冲中子全谱测井技术在冀东油田的应用  

Application of PNST Logging Technology in Jidong Oilfield

作　　者：肖勇[1] XIAO Yong(Logging and Testing Services Company, Daqing Oilfield Co. Ltd. , Daqing, Heilongjiang 163453, China)

机构地区：[1]大庆油田有限责任公司测试技术服务分公司,黑龙江大庆163153

出　　处：《石油管材与仪器》2016年第5期87-91,95,共6页Petroleum Tubular Goods & Instruments

摘　　要：冀东油田属于典型的复杂断块油藏,老井水淹严重,识别难度大。采用脉冲中子全谱测井(PNST)在老井中进行剩余油挖潜、找油、找气以及压裂效果评价方面取得了较好的效果。PNST一次测井能同时实现双源距碳氧比、中子寿命、脉冲中子-中子、能谱水流功能,测井信息丰富,测井实效高;利用碳氧比曲线可计算地层含油饱和度,分析储层水淹程度,确定措施层段。综合利用非弹、俘获伽马计数率测井信息能够准确识别气层,区分气水层,提高解释精度。现场应用表明PNST测井仪适用于冀东油田,为油田制订开发措施提供有效保障。Jidong oilfield belongs to the typical complex fault block reservoir,the old well water flooded serious,difficult to identify. Using pulsed neutron spectral log（ PNST） for residual oil exploration in the old well,looking for oil,gas,and fracturing effect evaluation has achieved good effect. PNST log once can simultaneously achieve dual-spaced carbon oxygen ratio,neutron lifetime,pulsed neutron-neutron,energy spectrum water feature,Logging information is rich,logging high efficiency; The carbon oxygen ratio curve can be sued to calculate the oil layer saturation and analyze flooded degree of reservoir and determine the treatment sections. The logging information of inelastic and capturing gamma counting rate can be used to accurately identify gas layer,and distinguish the gas layer from the water layer. According to the above method,the interpretation accuracy is improved. Field application shows PNST used for Jidong Oilfield,it provides effective protection for the oilfield development measures.

关 键 词：脉冲中子全谱测井 PNST 剩余油 示踪陶粒 压裂 

分 类 号：P631.817[天文地球—地质矿产勘探]