Completion Optimization in Fractured Sand Stone Reservoirs

Introduction There is an increase in the horizontal well drilling activity in the Travis Peak formation within Cotton Valley formation. Travis Peak reservoir is a liquid rich with highly complex fractured system within highly abrasive sands. Faster drilling with proper well placement was achieved through customized PDC bits and LWD Azimuthal Images. This paper outlines the processes and how the project objectives were achieved. Objectives Following are the 4 major objectives 1. Proper well placement within the Travis Peak reservoir. 2. Provide reliable fracture identification, fracture density and fracture location within the horizontal section of the well. 3. Completion optimization. 4. Faster Drilling through customized bit selection Method Typical processed data results show fracture density, spacing and position along with well placement results. This information was used to position perforation and frac stages along the horizontal section. Conclusions LWD azimuthal resistivity measurements enable us to provide a completion optimization solution in complex reservoir such as Travis Peak. With Multi well Azimuthal Resistivity image data acquisition we have a better understanding of the reservoir fracture system and regional stress state of rock. With optimized bore hole drilling and measurements assembly and proper bit selection, there was remarkable drilling performance resulting in savings of about 2 weeks per well.