About the well - hole - track section, drilling tool assembly and cementing are concerned.

介绍了该 井井 身轨迹剖面 、 钻具组合、固井的情况.

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Radiactive density - water cut meters can measure fluid density and water holdup in a well hole.

射线穿过不同物质后,物质对射线吸收的程度可用放射性密度 - 含水率计来测定.

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