Previous   |    Close   |    Next

Figure F14. Diagrams of Motion Decoupled Hydraulic Delivery System (MDHDS) deployment stages, Expedition 342. A. The MDHDS reaches the bottom-hole assembly. B. The electronic release system (ERS) releases the MDHDS and lifts 3 m. C. Upon release of the penetrometer, full circulation is achieved at a stroke of 2.9 m. D. The MDHDS is raised 2 m, placing it in mid-stroke for maximum heave accommodation. E. Once the test is complete, the ERS is lowered and latches onto the release system fishing neck. F. The entire unit is brought to the surface.

Previous   |    Close   |    Next   |    Top of page