低矿化度地层水地层是指地层水矿化度与泥浆矿化度相差不大，基本在一个数量级。
The stratum containing low salinity formation water means that formation water salinity is near to mud salinity, their difference being about an order of magnitude.
自然电位与地层流体的矿化度有密切关系，侵入带中泥浆滤液的矿化度对自然电位测井有较大的影响。
Spontaneous potential (SP) of a formation has tight relationship with salinity of formation liquid, the salinity of mud filtrate in invaded zone affects SP log considerably.
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