The Choice of Strategy Development of Offshore Oil-Gas Field

Abstract

Abstract Offshore oil-gas and oil-gas-condensate fields with several vertically stacked reservoirs requires a special approach for a choice of strategy their development. It is explained by necessity to solve a multivariate problem of determine of sequence of oil and gas reservoirs development, as well as the construction of facilities for oil and gas gathering and transportation of production from a field. In this paper we describe the principles and workflow of the definition a strategy for development of offshore oil-gas and oil-gas-condensate fields on the initial stage of their exploitation with a limited amount of geological information. The proposed technology for the choice of field development strategy includes four phases: definition of types of production systems for oil and gas recovery under the terms of their applicability to the field condition; selection of production systems for oil and gas reservoirs exploitation on the basis of ensuring a maximal economic effect; estimation of a priority in oil and gas production and recommendations for time input into the development of oil and gas reservoirs in line with the already defined sequence of their development. Implementation of proposed technology is demonstrated on the example of the choice strategy of development of hypothetical offshore oil-gas field.