Illuminate the Invisible ® EVALUATIVE CASE STUDY 63 cm 40 cm SCENARIO: Fishing a Crushed Mandrel Expected fish Multiple failed slickline runs LIB 2D Actual 3D Actual A piece of retrievable hardware needs to be removed from a well. It can be retrieved using either an overshot or a spear . Failure to retrieve would require the piece to be milled out. First, a spear is run, but engaging the ?sh is not possible. An overshot is run, but again engagi

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