 Work： Sector Cement Bond Logging Tool (SBT) is acoustic logging tool to evaluate cement bond quality and detection of pore cavities. Sector casing cement bond logging tool to measure the casing wave, the consolidation of the casing around the evaluation of the quality of cement, made by eight sensor(transmitter) around the tool every 45-degree angle wave amplitude curve, the amplitude of figure Indicates the quality of cement bond. This tool also articulated CBL / VDL logging, as recorded in the borehole has a different sound mode of transmission, a comprehensive analysis makes the results more accurate evaluation of cement quality.
Geological and engineering applications
Evaluation of the casing and the cement (Ⅰ interface) at 360°
understanding of the axial and radial channeling;
check the existence of channeling;
qualitative evaluation (Ⅱ interface) of the bond conditions.
Features
The logging tool has a very good channel identification sleeves outside the cavity, detecting a large range of impact by the grout ring is small, not heavy mud, oil-based mud, the thickness of the well casing and so on.
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