Thin bed resistivity logging (abbreviation TBRT) is a new kind of high resolution deep investigation resistivity logging and characterized by high vertical resolution and deep investigation depth.
薄层电阻率TBRT测井是一种新型的高分辨率深探测电阻率测井，显著特点是具有较高的垂向分辨率和较大的探测深度。
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。
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。
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。
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。
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