核磁共振测井即核磁测井(NML),是一种用于裸眼井的测井新技术。它是以核磁共振原理为基础,以先进的电子技术为手段解决测井问题的一种新方法。国外已经研究了20多年,目前达到了现场使用阶段。斯仑贝谢公司已为西欧和北美等十多个地区提供现场服务,苏联也利用自己研制的核磁测井仪在现场实验中取得了大量的成功经验。这表明,核磁测井是一种大有前途的测井新技术。 Nuclear Magnetic Resonance Logging (NMR) is a nuclear magnetic logging (NML) technique that is a new logging technique for open-hole wells. It is based on the principle of nuclear magnetic resonance, advanced electronic technology as a means of solving logging problems a new method. Abroad has been studied for more than 20 years and has now reached the stage of on-site use. Schlumberger has provided on-site service to over 10 regions in Western Europe and North America. The Soviet Union also used its own NMR logging tool to gain a large amount of successful experience in field experiments. This shows that NMR logging is a promising new logging technology.