oa Modern Approaches to Feasibility Study of Oil and Gas Projects and the Conditions of Cost-Effective Development. The Examples of Versatile Projects Estimations

The geological exploration consistency lies in the successive study of a sedimentary basin, an oil and gas accumulation zone, exploration targets, and than a field. Thus, as the knowledge is being gathered, the studied territory is repeatedly localised, geological approaches and criteria evolve, the exploration maturity improves, the uncertainty level decreases, and principally different management tasks are set. The economic appraisal, as a constitutive of the elaboration of corporate solutions, shall consider the specifics described. In particular, for two different types of hydrocarbon objects and geological exploration stages, there must be different objectives, tasks, methods, and sought indicators of economic analysis. The authors suggest a conceptual methodological approach to defining feasibility of diverse oil and gas projects and the conditions of cost-effective development, and consider its application on various scales: to a macroregion (southern Siberian Platform), separate highly promising zones within a macroregion (Baikit, Nepa-Botuoba, etc.), prepared and identified structures (Kapaevskaya and Katskaya-2 within the Verkhnekatangsky block), and a developed field.

The authors conclude that feasibility study methods must be applied correctly in terms of methodology.