Revealing new hydrocarbon potential through Q-compensated prestack depth imaging at Wenchang Field, South China Sea

The imaging of the complex fault system plays an important role in hydrocarbon exploration in Wenchang field since the fault system forms a bridge between the source rocks and reservoirs. However, it is challenging to obtain a high quality depth image of the fault system due to the complex depth velocity and Q absorption effect. In this paper, we demonstrate how a combination of Fault Constraint Tomography (FCT) model building flow and Q-compensated High Fidelity Controlled Beam Migration (QHFCBM) work together to provide a step change in the imaging quality and bring significant impact to the reservoir delineation.