Top of Abnormal Pressure Zone Prediction in The Arun Gas Field, North Sumatra



Mobil Oil Indonesia Inc. has documented in detail the occurrence of abnormal pressure in the Arun area and proposed an explanation of its origin. Methods of prediction and detection utilizing geological and drilling engineering data have been developed. A map of Top Abnormal Pressure has been prepared and is being used successfully to plan drilling of Arun field production wells. By updating the geological and drilling engineering data base as new wells are drilled and by continuing to analyze such data, Mobil will be able to predict overpressured zones with increased accuracy. This will further improve the safety of drilling operations in and around the Arun field area.


Author : Riza Atmadibrata