核磁共振测井技术在渤海稠油储层评价中的应用  

Evaluating Bohai Heavy Oil Reservoirs by MRIL-P and It's Application

作　　者：李国军[1] 刘建新[1] 张国华[1] 刘树巩[1] 

机构地区：[1]中海油田服务股份有限公司油田技术事业部,北京101149

出　　处：《石油天然气学报》2009年第1期64-67,共4页Journal of Oil and Gas Technology

基　　金：中国海洋石油总公司重点科技攻关项目(SC08SLTJ-0125)

摘　　要：为了正确识别渤海湾稠油储层,以实验室饱和稠油岩心核磁共振机理研究为基础,分析了稠油储层P型核磁资料差谱和移谱特征,提出了稠油储层测前设计方案,总结了核磁资料识别稠油储层的方法。通过核磁资料在渤海海域几口井的应用,区分了稠油和中等粘度的油、水层核磁测井响应差异,确定了该区稠油储层合理的T2截止值,计算出储层区间孔隙度和油、水两相孔隙体积,形成了一套识别稠油储层的新方法,推动了P型核磁测井技术在渤海海域的应用,同时能够为后期油藏开发提供依据。Based on core analysis of heavy oil reservoirs in Bohai Bay,a comprehensive analysis on differential spectral method(DSM) and shifted spectral method(SSM) was discussed in detail and viscous oil pre-logging design was provided,the discrimination of viscous oil was summarized by using P-nuclear magnetic resonance(MRIL-P) logging.The response of viscous oil,moderately viscous water is different from MRIL-P relaxation response of some oil wells in Bohai offshore oilfield and reasonable T2 cutoff value of viscous oil is given.Interval porosity,oil and water volume are accurately calculated,thus a new recognizing method is established,which promotes the application of MRIL-P in China offshore oilfields and provides criterion at the late stage of reservoir development.

关 键 词：稠油 P型核磁测井 差谱 移谱 储层评价 

分 类 号：P631.84[天文地球—地质矿产勘探]