Identification of low-overpressure interval and its implication to hydrocarbon migration: Case study in the Yanan sag of the Qiongdongnan Basin, South China Sea - Fig 3

Sonic depth profiles of P-wave of mudstones and mud weights, as well as measured pressure coefficient data for wells A (panel A) and B (panel B) in the Qiongdongnan Basin. Locations of these two wells are shown in Fig 1. Sonic data are average values of single mudstone layers, and lithology is determined from cuttings. Test pressures are from DST (drill stem test).