«Geology, geophysics and development of oil and gas fields»

Hard-to-recover oil and gas reserves in the gas part of oil and gas condensate and gas condensate fields at the late stages of development (on the example of the Orenburg and Vuktyl oil and gas condensate fields)

UDC: 550.8+622.276.1/.4(470.13+470.56)
DOI: 10.33285/2413-5011-2023-11(383)-24-31

Authors:

¹ Oil and Gas Research Institute of the Russian Academy of Sciences, Moscow, Russia
² National University of Oil and Gas "Gubkin University", Moscow, Russia

Keywords: Orenburg oil and gas condensate field, Vuktylskoye oil and gas condensate field, hard-to-recover reserves, resource potential, late stage of development, matrix oil of the gas-saturated part of the field, three-dimensional modeling, valuable metals

Annotation:

Based on a comprehensive analysis of the results of geophysical, geological-field, petrophysical, lithological and geochemical studies of productive deposits of long-term developed oil and gas condensate fields, the previously unaccounted for hard-to-recover reserves and resources of the Orenburg and Vuktyl oil and gas condensate fields for gas, liquid petroleum hydrocarbons, bituminous components, rare, rare earth and valuable metals have been estimated. The involvement of unique reserves of hard-to-recover matrix oil in production and deep complex processing will lead to an increase of the component recovery factors of oil and gas condensate and gas condensate fields at the late stages of their development. A significant increase of gas recovery from the productive deposits of the gas condensate field and the gas part of the oil and gas condensate field is possible due to the improvement of technologies for the production of gas trapped in the pores, removed from the development during flooding, from the zones of its maximum concentrations.

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