In a horizontal well, the mud filtrate will sink below the well, leaving hydrocarbons above it.
在水平井中，泥浆滤液会沉到井底，碳氢化合物则在泥浆滤液上面。
Study of mud filtrate invasion on reservoir is helpful to identify oil, gas and water zones correctly.
钻井泥浆滤液储层侵入研究有助于正确识别油气水层。泥浆侵入较浅时，可以利用测井响应识别部分油层；
The mud cake which permeability is very low can prevent mud filtrate from invading further the formation.
泥饼的渗透率较低，能阻止泥浆滤液进一步渗入地层。
The formation damage during drilling are recognized as 2 types: mud solid particles plug and mud filtrate invasion.
钻井过程中的油层污染可分为泥浆固相颗粒侵入和滤液侵入2种类型。
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.
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。
A group of mud additives specifically designed to lower the volume of filtrate that passes through a filter medium.
降低泥浆通过渗透介质时的滤失量的一种特殊泥浆添加剂。
A group of mud additives specifically designed to lower the volume of filtrate that passes through a filter medium.
降低泥浆通过渗透介质时的滤失量的一种特殊泥浆添加剂。
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