An Experimental Investigation on Foam Injection in a Fractured Matrix: Effect of Viscous Cross flow

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Khoshkalam Yegane; KHOSRAVI MARYAM; ROSTAMI BEHZAD

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Journal: PETROLEUM RESEARCH Year:2019 | Volume:29 | Issue:105 Page(s): 61-71

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Title

An Experimental Investigation on Foam Injection in a Fractured Matrix: Effect of Viscous Cross flow

Author(s)

Khoshkalam Yegane | KHOSRAVI MARYAM | ROSTAMI BEHZAD | Issue Writer Certificate

Keywords

Foam Injection into the FractureQ1

Viscous Cross FlowQ1

Mechanism of EmulsionQ1

Immiscible Foam InjectionQ1

Enhanced Oil RecoveryQ1

Abstract

Cross flows and molecular diffusion are of high importance in recovery of bypassed oil. Thus, reinforcing Viscous Cross Flow as a driving force in order to increase the oil recovery is proposed. In order to strengthen Viscous Cross Flow, injection of a viscose fluid such as foam in fractured micromodels was applied, and bypassed oil was recovered. Based on the results, effective mechanisms of bypassed oil displacement were Viscous Cross Flow and emulsion. Moreover, two distinct region were observed in displacement front: a dynamic region in which the saturation of foam is low and participation of surfactant saturation is higher than gas phase, and a static region that foam saturation is high and fluids’ mobility are lower than dynamic region. In dynamic region, some oil was recovered by emulsion. The oil droplets flew through arc-like aqueous phase and accumulated near the downstream. As oil saturation decreases in fracture, an area that is known as mixing zone is observed in middle parts of matrix-fracture interaction. Moreover, pressure drop in the main stream is the driving force for moving these oil droplets through arc-like front. This pressure drop is constant in a steady state foam injection in porous media. Hence, the driving force is constant and strengthens the fluid flow up to a certain level in dynamic region. Therefore, each pressure drop in the mainstream corresponds with particular foam invasion depth and is proportional to an individual recovery factor.

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APA: Copy

Khoshkalam, Yegane, KHOSRAVI, MARYAM, & ROSTAMI, BEHZAD. (2019). An Experimental Investigation on Foam Injection in a Fractured Matrix: Effect of Viscous Cross flow. PETROLEUM RESEARCH, 29(105 ), 61-71. SID. https://sid.ir/paper/114905/en

Vancouver: Copy

Khoshkalam Yegane, KHOSRAVI MARYAM, ROSTAMI BEHZAD. An Experimental Investigation on Foam Injection in a Fractured Matrix: Effect of Viscous Cross flow. PETROLEUM RESEARCH[Internet]. 2019;29(105 ):61-71. Available from: https://sid.ir/paper/114905/en

IEEE: Copy

Yegane Khoshkalam, MARYAM KHOSRAVI, and BEHZAD ROSTAMI, “An Experimental Investigation on Foam Injection in a Fractured Matrix: Effect of Viscous Cross flow,” PETROLEUM RESEARCH, vol. 29, no. 105 , pp. 61–71, 2019, [Online]. Available: https://sid.ir/paper/114905/en

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