Outlooks for supplementation of raw materials reserves at the Vuktyl oil-gas- condensate field
Despite high depletion Vuktyl oil-gas-condensate field up to now is the main center of gas extraction in Komi Republic. However, technological functioning of the gas field together with conjugate group of small- reserve fields and Sosnogorsk gas-processing plant requires to upkeep base of raw materials and levels of production. Middle-Devonian sediments, being one of the dominant complexes of Timan-Pechora oil-and- gas-bearing province, could become a source for maintaining the base of raw materials. At the territory of Upper-Pechora depression they are poor and have low collecting properties. Main thicknesses of terrigenous Devonian have been accumulating within grabens of Pechora-Kolva aulacogene, including Pechora-Kozhva megaswell, which south-eastern extremity submerges to the east of Vuktyl field into a zone of advanced folds of Urals. Up to now within the boundaries of this megaswell a lot of hydrocarbon fields have been discovered. Main reservoir thicknesses are dated for Middle-Devonian Givetian-layer sediments and for Yaran horizon of Lower Frasnian sublayer. Here one can find sandy strata of considerable thickness with good filtrational-capacitive properties. It is indirectly proven by the results of surveys carried out to the east of Vuktyl area, where in 1970s the gas inflows with debits up to 300 ths m3 per day have been gotten. In case of estimative prospecting one could expect discovery of fields, allowing supplementation of Vuktyl oil-gas-condensate field reserves.