Nuclear magnetic resonance relaxationcharacteristics of crude oil change with temperature varying at different formation depth.
随埋藏深度的不同，地下原油温度有很大的变化，造成其核磁共振弛豫特性差别较大。
2
The nuclear magnetic relaxationcharacteristics of formations will change if there are paramagnetic materials in the formations.
如果在地层中含有顺磁性物质，则地层的核磁弛豫特性呈现新的变化特征。
3
The stress relaxationcharacteristics were influenced by temperature: when the temperature increased, the stress relaxation time decreased and vice versa.