新型地层密度随钻测井仪器的应用  

Application of the New LWD Density Tool

作　　者：王易敏 吴玲 李智平 

机构地区：[1]中国石油集团测井有限公司

出　　处：《国外测井技术》2015年第3期55-58,4,共4页World Well Logging Technology

摘　　要：本文介绍了一种新型的地层密度测井仪器的测井原理、特点和现场测井实例。与传统的使用Cs137为伽马源的密度测井仪器(GGD)性比,它使用可控的脉冲中子源,安全可靠,并且在仪器特性方面优势明显。通过现场测井实例比较,新型密度测井仪器(NGD)与传统密度测井数据一样可以作为地层评价的标准。现场测试同时也说明了新密度仪器的测量精度高,准确性好。The paper introduces the logging principle,characteristics and field examples of the new density tool NGD. Comparing with the traditional gamma-gamma density tool(GGD) that uses a dangerous radioisotope(Cs137) as a source of gamma rays, it uses secure,reliable and controllable PNG( pulsed neutron generator),and has some obvious advantages in terms of performance. Field results show that the measurement of new density logging tool NGD like the traditional tool GGD can be the standard of formation evaluation and is more accurate and reliable.

关 键 词：脉冲中子源 中子伽马密度 地层密度 现场测试 

分 类 号：P631.83[天文地球—地质矿产勘探]