Accurate characterization of the size and shape of the borehole is critical to the effective
borehole correction for logging while drilling (LWD) measurements. It is also necessary for …

With the continuous development of logging tools with controllable neutron sources,
improving the processing method to make their measurements more consistent with those …

The prospecting activities for finding new rare earth elements (REE) sources have increased
greatly in recent years. One of the main discoveries was announced in 2011 by Japanese …

The neutron porosity logging is one of the main methods for measuring the formation
porosity. However, for the formation with complex mineral compositions and fluid properties …

As an alternative method for the compensated neutron porosity measurement method, the
neutron-gamma porosity measurement method is widely used in cased holes. However, the …

基于数值模拟方法剖析钻铤改善中子孔隙度测井灵敏度的机制, 并仿照钻铤影响提出中子源减速
块和探测器屏蔽套等结构用于设计高灵敏度电缆DT 源孔隙度仪器. 结果表明 …

Utilizing a DT source to replace the chemical source is the development trend of nuclear
logging technology. However, the wireline porosity logging with a DT source has a lower …

Density logging is critical to shale oil and gas exploration. In density logging of cased holes,
the inelastic gamma count and hydrogen index are closely related to the correction of …

在以往补偿中子测井的蒙特卡罗模拟研究中, 地层水矿化度多设置为0, 但实际上地层水矿化度
变化会对补偿中子测井造成影响. 对此文中利用蒙特卡罗方法模拟研究了地层水矿化度对补偿中 …

Impulse oxygen activation logging based on pulsed neutron technique is a widely used
method to monitor the injection profile. The instrument utilizes a DT generator to activate the …