自然伽马测井曲线应用新方法

New applicable method of gamma ray logging curre.

自然伽马测井测量的是地层总的自然伽马放射性 ,是套管井测井的一种最基本的方法。随着油田开发的不断深入 ,地层中的放射性物质也在不断被搬运、堆积 ,导致地层中的自然伽马放射性出现异常变化。根据这个变化 ,自然伽马曲线在开发测井中不但可以用于深度校正 ,而且还可以在诸如水淹层解释、吸水剖面测试、油水井验窜、找漏等方面进行应用。

What natural gamma well logging measured is total natural gamma radioactivity in layer,and it is a kind of most basic method in casing pipe well logging. Along with the continuous development of oilfield,radioactive material also is constantly carried,piled up in layer,which causes natural gamma radioactive in layer to appeare abnormal change. According to this changing,natural gamma curve in development logging can be not only rectified in depth,but also used in some fields such as interpretation of water-flooded zone,testing of water injection profile,channeling and leakage detection of oil wells or water wells and seek leakage etc. The new methods about natural gamma logging has gotten very good verification in Linpan Oilfield.