浅议核磁共振测井仪器理论及应用  

Brief Overview on the Principles of Nuclear Magnetic Resonance Logging Tool and Its Application

作　　者：李昆[1] 刘铁民[1] 薛志波[1] 田志宾[1] 李谦[1] LI Kun;LIU Tiemin;XUE Zhibo;TIAN Zhibin;LI Qian(Welltech Division of China Oilfield Services Limited,Sanhe 065201,China)

机构地区：[1]中海油田服务股份有限公司油田技术事业部,河北三河065201

出　　处：《化工管理》2024年第11期83-86,共4页Chemical Engineering Management

基　　金：中国海洋石油集团有限公司科技专项“测录试关键技术与装备”(项目编号:KJGG-2022-1401);中海油田服务股份有限公司科技项目“技术装备产业化定型与示范应用”(项目编号:YJB22YF003.09)。

摘　　要：核磁共振测井仪器可以实现自旋核的极化、把体磁化强度M_(0)扳倒在与B_(0)垂直的平面上、自旋回波探测;回波串的衰减率反映了地层的孔径尺寸信息和流体类型信息,核磁共振技术在油田测井中得到了广泛应用,在油田储层评价中具有重要价值。Nuclear magnetic resonance well logging tool polarizes the spins,rotates bulk magnetization vector M_(0) to the transverse plane which is perpendicular to B_(0),detects the echo train.Attenuation rate of the echo train indicates the diameter of formation pore and what kind of fluid in the pore.Nuclear magnetic resonance well logging tool has been widely used in petroleum exploration,logging data interpretation is very valuable for the evaluation of reservoir formation.

关 键 词：磁旋比 进动频率 纵向弛豫 横向弛豫 

分 类 号：TE151[石油与天然气工程—油气勘探]