Wireline logs vs drilling events: Which one to believe in implying subsurface pressure?

As generally known, subsurface pressure can be implied using both wireline logs and drilling events. However, there may a case where events do not indicate the same pressure. Data from four vertical wells located in South Sumatra Basin, Indonesia, were analyzed as study. Two wells, Wells A D, encountered high overpressured zones, confirmed by data. The two others, B C, only low inferred relatively mudweight used during drilling. of C show reversal D. There are hypotheses to explain condition C. First, is due shallow carbonate cementation. Second, drilled an unintentional underbalanced condition. method includes XRD, SEM, titration analysis. results that first hypothesis false, while second true. It some missing information related final well report