An experimental investigation to consider thermal methods efficiency on oil recovery enhancement

Abstract

To study the profound impact of reservoir characteristics on flow regime in two‐phase condition, the effect of saturation and capillary pressure (Pc–S) should be taken into consideration in the porous medium. The purpose of this extensive experimental investigation is to inject the foaming agent and nitrogen gas, which is produced by the foam generator after waterflooding in a fractured reservoir to select the best optimum scenario. It has been elaborated that nitrogen of lower density and lower compressibility would provide a secondary gas cap at the top of the cores which causes to mobilize more oil volume in the unswept zones. The rupturing of foam considerably influences this phenomenon in the high permeable layers that have led the oil of low permeable layers to be mobilized in the presence of nitrogen.

RETRACTED: Hybrid Chemical Enhanced Oil Recovery Techniques: A Simulation Study

“…Drilling the new exploration wells or enhanced oil recovery methods considered as the preferable ways to produce more oil volume [1][2][3][4][5][6][7]. Chemical recovery techniques revolutionize the way petroleum industries operate the full range of reservoir management and how to optimize each method to eliminate unnecessary expenditures virtually [8][9][10][11][12][13][14]. The three primary mechanisms of chemical flooding are; capillary number rise is caused to mobilize the residual oil, reduce the ratio of mobility to improve the sweep efficiency, and oil emulsification that leads to facilitate the production rate.…”

A Laboratory Approach on the Hybrid-Enhanced Oil Recovery Techniques with Different Saline Brines in Sandstone Reservoirs

“…Due to the higher interactions between foams and formation, a large percent of foam flooding performances have been carried out in water-wet rocks where no oil existed [13][14][15][16]. Some concepts, which should be of importance in foam-flow behavior, are the Marangoni effect, gravity drainage, disjoining pressure, entering and spreading, interfacial tension, diffusion, liquid drainage by gravity, and liquid viscosity [17][18][19][20][21]. The Marangoni effect is considered as the mass transfer of the fluid phase through the interfacial surfaces of two regions which are caused by surface tension.…”