Rock Mechanic Application for Future Heavy Oil Development, Shallower Reservoir and Highly Faulted Area: A Geomechanical Model for Central Sumatra Oil Field

Rock mechanic study become an important tools for future development in heavy oil. Steam injection at shallower reservoir and highly faulted area need more accurate risk assesment and calculate limit of steam injection. The information contained in a geomechanical model will give the alternatif for development scenario and increasing project economic.Utilizing pore pressure, rock properties and stress model information can provide recommendations for efficient well design and placement to reduce drilling problem such as stuck pipe and lost circulation. A geomechanical model also makes it possible to designs completion to avoid or manage solids production. In addition, the effects of reservoir injection can be predicted to enable avoid hazards related to leakage of produce fluid or injected steam.This paper will illustrate the prediction of fracture pressure related to seal or cap rock above shallower reservoir that will be injected by the steam, determining the apropriate mud window to control wellbore stability where te borehole has intersected critically stressed natural fractures or fault at faulted area that are related to high fractur e permeability, calculate the upper bound pressure within the fault that could lead to escape of injected steam and calculate the minimum rock strength to prevent rock production.