In this paper, radial investigation depth of acoustic logging is researched with the well that is surrounded by the cylindrical multi-layer media.

根据这些曲线的变化，简单分析了声波测井的探测深度。

youdao

ALL can provide 4 logs that have different investigation depth. They can be used to inverse invasion radius, invasion zone resistivity and virgin zone resistivity.

利用阵列侧向测井提供的4条探测深度不同的曲线，联合反演侵入半径、侵入带电阻率和原状地层电阻率，具有很好的效果。

youdao

So, the investigation depth of spontaneous potential logging is the depth of mud invasion, and relation between spontaneous potential and mud invasion depth may be built.

因此，可以得出自然电位测井的探测深度就是泥浆侵入深度，并可建立自然电位与泥浆侵入深度之间的关系。

youdao

(SAYING) Frattini said Italy wants an in-depth investigation and also wants to ensure that all three Italians detained are guaranteed all the rights provided for in international conventions.

VOA: standard.2010.04.12

An in-depth investigation was out of the question because of severely constrained time due to an upcoming election.

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On Tuesday the regulators ruled an in-depth investigation was needed as they believed there was "no obvious market failure" that needed to be addressed.

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Since then, 50 attorneys generals have launched a an in-depth investigation into the way BofA and other lenders like Wells Fargo and JPMorgan Chase handled foreclosures.

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