The CDL tool is simple in structure, consisting of tapered housing, gland sub, and clamp collar. The lower threads of the tool connect with the milling tool, while the upper threads connect with fishing tool.

• CDL测井仪打捞工具结构简单,主要由锥度套、压盖短节和卡箍组成,工具下螺纹与铣筒连接,上与打捞钻具连接。