岩石类型与水层赋存状态对地面NMR的影响

Effect on information of NMR by rock types and the water in rock

本文根据流体介质的NMR平均衰减时间T2 (ms)的大小对含水岩石类型进行了划分 ,然后按含水岩层孔隙度大小讨论和大小的关系 ,对T2 值和NMR信号振幅的影响也作了讨论 ,列出了二者之间的数学表达式 ;第二部分就含水层的赋存状态 (含水层深度、含水量 )和NMR的关系进行了探讨。

In this paper we partitioning water bearing strata based on the fluid agent average signal amplitude decay time T 2 *(ms),and discussed the relation between rock porosity and T 2 * ,also given the mathematical expression; the second part discussed the relation between water bearing strata status(water bearing strata depth?moisture content)and NMR.