JAMSTEC > Strategic Research and Development Area > Research and Development Center for Ocean Drilling Science (ODS) > Drilling Informatics Research Group (DIG) > Background Motivation and Goal

Research and Development Center for Ocean Drilling Science (ODS)

Drilling Informatics Research Group (DIG)

Background Motivation and Goal

Over four decades, scientific drilling expeditions at global oceans drilled mostly in the deep water environments (~6890 m in riserless and ~2000 m in riser drilling), however drilling targets below seafloor were limited with the riserless drilling. Since the D/V Chikyu began her operations, the targets are deeper and in the harsh environments (e.g. high current, structurally complex), and hence we are sharing the common challenges of the ultra-deep water and ultra-deep drilling operations with industry, particularly uncertainty across several domains, geology, geophysics, petrophysics, geomechanics and drilling engineering.

Unlike oil and gas exploration practice, scientific drilling projects run in fixed expedition/leg period (e.g. two months maximum), targeted to acquire maximum coring and limited logging with fixed measurements in its four decades history. However, D/V Chikyu’s ultra-deep projects are first multi-year drilling operations with more complexities, such as longer period, multiple entries to the same well to reach the target, limited resources in expertise and advanced technology, it is difficult to continue working with geoscience community alone. To overcome those challenges, dedicated research and development team is vital in working through the drilling informatics by maximizing the use of D/V Chikyu datasets, making drilling experiments and sophisticated technology developments for the extreme environments.

Ultimate goal through the drilling informatics research is understanding and mitigation of the Earth system evolution and establishment of technology for sustainable earth, ocean, life, and society