open porosity

Comparison of gas extraction properties of reservoir rocks of different geological depositional

Study of the dynamics of gas extraction depending on open porosity of rocks-reservoirs which are formed in different geological conditions of sedimentation indicates the three distinct modes of extracting gas: initial, where βh varies from 0 to 0.5, transition – βh=0,5-0,7 (for sarmatian collectors of Bilche-Volytsky zone of the Carpathian foredeep), βh=0.5-0.8 (for Visean collectors of Rudivsko-Chervonozavodsky deposits in the Dnieper-Donets basin) and βh=0.5-0.6 (for Miocene carbonate reservoirs of southern waters of Azov sea).

Characteristics of cretaceous-paleogene flysch reservoir rocks with low permeability from the oil-and gas-field in Dolyna, inner zone of the Carpathian foredeep

The results of asymmetric histograms of open porosity and absolute permeability with low reservoir, as well as residual of oil deposits of category A+B+C, the oil recovery factor for send rocks of Cretaceous-Paleogene flysch of Dolyna oil and gas region of the Inner Zone of Carpathian foredeep are presented.