Distribution of reservoir temperature in area of Turonian deposit at Yuzhno-Russkoye field
The results of well testing, geophysical studies and eld measurements of bottomhole temperatures and pressures are analyzed. Based on these data, thermodynamic calculations were provided to estimate the temperature distribution over the area of the Turonian formation of the Yuzhno-Russkoye eld. The obtained reservoir temperature distributions show that there are no gas hydrates in the pore space of the Turonian reservoir. However, the formation of hydrates in the bottomhole zone is possible with su ciently high drawdowns on the formation.A thermodynamic technique is suggested for determining the maximum “hydrate-free” drawdowns for Turonian wells, excluding the risks of gas hydrate formation in the bottomhole zone. The results obtained can be used to establish the optimal technological regimes for the operation of Turonian wells.