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BENTONITE-BASED DRILLING MUD AND DRILLING METHOD USING THE SAME
BENTONITE-BASED DRILLING MUD AND DRILLING METHOD USING THE SAME
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机译:基于膨润土的钻井泥浆及其使用方法
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P The invention relates to a bentonite-based drilling mud, which comprises a phosphonate type compound of formula: (CF DRAWING IN BOPI) in which R1, R2, R3 and A are as defined in the description. The invention also relates to a drilling method which uses said mud. /P
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机译:本发明涉及基于膨润土的钻探泥浆,其包含下式的膦酸酯类化合物:(CF DRAWING IN BOPI)其中R1,R2,R3和A如说明书中所定义。本发明还涉及一种使用所述泥浆的钻井方法。 P>
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