The Ravva field in K-G Basin, India was discovered in 1987 and brought into production in 1993. To-date the field has produced more than 259 MMbbls of oil and sold 327 BCF of gas, more than double of its initial estimates. Staged and appropriate use of geophysical technologies and multi-disciplinary integration has helped in extending the life of this field.. The Ravva Field JV’s reservoir management team’s commitment to excellence in reservoir management is evident from the production performance of the field. Production plateau was significantly extended before it declined in 2008, through sound reservoir management practices and regular infill drilling of the wells. The multi-disciplinary integration of various reservoir characterization and simulation studies, dynamic reservoir surveillance programs and 4D monitoring techniques further extending the field life.
In this paper, we provide a brief history on the role geophysical technologies in extending the life of the field. From the beginning of the field development to the current phase of sustaining the production, the geophysical technologies played a vital role by accurately mapping the structure, extending the field limits, understanding fault compartmentalization, providing insights into the reservoir quality, optimizing infill well locations, identifying bypassed pay areas and finally discovering and developing the near field hydrocarbon pools.