Abstract
This paper deals with new methodologies and tools which appear necessary to improve the evaluation of the potentials of mature fields. By designing efficient ways for reengineering, it becomes possible to increase their recovery factor and thus maximize their value.
Those methodologies are based on the COUGAR™ technology developed at the IFP for dealing with uncertainties associated with field development strategy. This technology allows enhancing the knowledge of a given reservoir at the lowest cost, propose ways to minimize the uncertainties of various origins, and thus improve the sweeping strategy in order to maximize the economics in a risk-prone environment. Principle and applications of this technology to actual field cases are presented in this paper.
These methodologies, along with a deep understanding of the design of recovery processes and well treatment strategies, offer new and efficient ways of improving the oil and gas recoveries from mature fields.