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 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。
The downward vertical movement of filtrate with time after invasion.
泥浆侵入地层后的下沉垂直移动。
The downward vertical movement of filtrate with time after invasion.
泥浆侵入地层后的下沉垂直移动。
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