Downhole video logging technique captures borehole images by downhole camera and can be applied to well casing inspection, downhole fishing, downhole completion quality inspection, etc.
井下视频成像测井利用井下摄像头获取井眼实时图像信息，可用于套管检测、落物打捞、井下作业质量检查等。
Introduced in the paper are the principle and method of borehole elastic modulus inspection and sound wave inspection used in the quality inspection of grouted rock mass of a dam foundation.
主要介绍采用钻孔弹模法和声波法对灌浆处理后的坝基岩体进行质量检测的原理和方法。
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