An estimation of Ufimian terrigenous reservoir lithology influence on oil recovery factor by steam stimulation basing on tube experiments

Thermal EOR International Workshop III: "Thermal Methods for Enhanced Oil Recovery: Laboratory Testing, Simulation and Oilfields Applications"

Rojas, A.^1 ; Idrisov, I.^1 ; Sudakov, V.^1 ; Nurgaliev, D.^1 ; Grachev, A.^2

Unconventional Reservoirs Modeling Center, Institute of Geology and Petroleum Technologies, Kazan Federal University, Kazan, Russia^1

Research Laboratory Rheological and Thermochemical Investigation, Chemical Institute A. M. Butlerova, Kazan Federal University, Russia^2

关键词: Clay content;    Oil recoveries;    Production rates;    Reservoir engineers;    Steam stimulation;    Steamflooding;    Temperature growth;    Viscous oil;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/282/1/012028/pdf
DOI  :  10.1088/1755-1315/282/1/012028

来源: IOP

【 摘 要 】

The settings, scale and geometry of lab facilities to simulate enhanced recovery methods play a significant role in the approximation of underground conditions of oil fields. The reliability more or less of the best replication of these conditions is a question of the reservoir engineer when forecasts are made for cases when enhanced recovery methods are applied. This paper presents the results of two experiments carried on in a steam flooding tube facility adding clay in one of them to assess the influence in temperature growth and production rates and onset times of a highly viscous oil field of the Tatarstan Republic. The results of the runs show that 4% (by weight) of clay content in the porous media has a strong effect on the overall oil recovery, reducing the temperature growth rate in average 73% when steam stimulation methods are used.