...Xuezhen Wang; Jimin Zhou; Jieqiong Pang; Kishore K. Mohanty Summary Foam flooding can minimize bypassing in gasfloods in fractured reservoirs. Finding a foam formulation effective in high-salinity brine is challenging, especially with divalent cations, e.g., American Petroleum Institute (API) brine...

...Jawad Al-Darweesh; Murtada Saleh Aljawad; Zuhair Al-Yousif; Ahmed BinGhanim; Muhammad Shahzad Kamal; Mohamed Mahmoud Summary This research fills the gap in understanding the impact of corrosion inhibitors (CIs) and a chelating agent on the rheology and stability of foam under harsh conditions...

...Bing Wei; Qingtao Tian; Shengen Chen; Xingguang Xu; Dianlin Wang; Jun Lu Summary There exist two main issues hampering the wide application and development of carbon dioxide (CO 2 ) foam in conformance improvement and CO 2 mobility reduction in fractured systems: (1) instability of foam film under...

...Abdulrauf Rasheed Adebayo Summary Lateral propagation of foam in heterogeneous reservoirs, where pore geometries vary laterally, depends on the roles of pore geometries on the foam properties. In this paper, the pore attributes of 12 different rock samples were characterized in terms of porosity...

...K. Li; K. A. A. Wolf; W. R. Rossen Summary In this study, to investigate how gravity affects foam in open vertical fractures, we report foam experiments in three 1-m-long, 15-cm-wide glass-model fractures. Each fracture has a smooth wall and a roughened wall. Between the two walls is a slit-like...

...Abdulrauf Rasheed Adebayo Summary The limiting capillary pressure of foam ( P c * ) and foam trapping in porous media are pore-scale foam properties that affect foam transport in porous media. They are strongly influenced by the characteristics of rock pores and throats. Because of experimental...

...Raja Ramanathan; Omar Abdelwahab; Hisham A. Nasr-El-Din Summary Nanoparticles have improved a surfactant's ability to create long-lasting foam. Recent studies have widely recommended the use of silica nanoparticles to enhance foam stability. This paper presents an experimental investigation...

...Xiaocong Lyu; Denis Voskov; Jinyu Tang; William R. Rossen Summary Foam injection is a promising enhanced-oil-recovery (EOR) technology that significantly improves the sweep efficiency of gas injection. Simulation of foam/oil displacement in reservoirs is an expensive process for conventional...

...Guoqing Jian; Zachary Alcorn; Leilei Zhang; Maura C. Puerto; Samaneh Soroush; Arne Graue; Sibani Lisa Biswal; George J. Hirasaki Summary In this paper, we describe a laboratory investigation of a nonionic surfactant for carbon dioxide-(CO 2 -) foam mobility control in the East Seminole field...

...Yongchao Zeng; Ridhwan Z. Kamarul Bahrim; J. A. W. M. Groot; Sebastien Vincent-Bonnieu; Jeroen Groenenboom; Siti Rohaida Mohd Shafian; Arif A Abdul Manap; Raj D. Tewari; Erfan Mohammadian; Amin Azdarpour; Hossein Hamidi; Sibani L. Biswal Summary This paper advances the understanding of foam...

... factors present an opportunity for using enhanced oil recovery (EOR) methods. This work presents a laboratory investigation of miscible ethane (C 2 H 6 ) foam for gas EOR conformance in low‐permeability, heterogeneous, harsh environments [<15 md, 136,000 ppm total dissolved solids (TDS) with divalent...

... of standard waterflooding (with FW); flooding with nonmiscible gaseous CO 2 ; WAG with CO 2 and FW and/or LSW; foam flooding by adding a surfactant with CO 2 ; adding an alkaline treatment step; and finally adding an LSW spacer between the alkaline step and the foam. These various EOR combinations were tested...

...Rodrigo O. Salazar-Castillo; William R. Rossen Summary Foam increases sweep efficiency during gas injection in enhanced oil recovery processes. Surfactant alternating gas (SAG) is the preferred method to inject foam for both operational and injectivity reasons. Dynamic SAG corefloods are unreliable...

...Jiakun Gong; Sebastien Vincent-Bonnieu; Ridhwan Z. Kamarul Bahrim; Che A. N. B. Che Mamat; Raj D. Tewari; Mohammad I. Mahamad Amir; Jeroen Groenenboom; Rouhollah Farajzadeh; William R. Rossen Summary A surfactant alternating gas (SAG) process is often the injection method for foam, on the basis...

...Chen Qian; Ali Telmadarreie; Mingzhe Dong; Steven Bryant Summary The major challenge in enhanced oil recovery (EOR) by gas injection is poor volumetric sweep efficiency, mainly due to the high gas mobility and reservoir heterogeneity. Injecting gas as a foam increases sweep efficiency...

...Arthur U. Rognmo; Noor Al-Khayyat; Sandra Heldal; Ida Vikingstad; Øyvind Eide; Sunniva B. Fredriksen; Zachary P. Alcorn; Arne Graue; Steven L. Bryant; Anthony R. Kovscek; Martin A. Fernø Summary The use of nanoparticles for CO 2 ‐foam mobility is an upcoming technology for carbon capture...

...Songyan Li; Qun Wang; Zhaomin Li Summary Foam flooding is an important method used to protect oil reservoirs and increase oil production. However, the research on foam fluid is generally focused on aqueous foam, and there are a few studies on the stability mechanism of oil‐based foam. In this paper...

... heterogeneity, and high brine salinity. We present the feasibility and injection–strategy investigation of ultralow–interfacial–tension (IFT) foam in a high–temperature (greater than 80°C), ultrahigh–formation–salinity [greater than 23% total dissolved solids (TDS)] fractured oil–wet carbonate reservoir...

...Arthur Uno Rognmo; Sunniva Brudvik Fredriksen; Zachary Paul Alcorn; Mohan Sharma; Tore Føyen; Øyvind Eide; Arne Graue; Martin Fernø Summary This paper presents an ongoing CO 2 –foam upscaling research project that aims to advance CO 2 –foam technology for accelerating and increasing oil recovery...

...), alter wettability, and establish conditions for capillary continuity to improve tertiary carbon dioxide (CO 2 ) foam injections. Surfactant prefloods can alter the wettability of oil‐wet fractures toward neutral/weakly‐water‐wet conditions that in turn reduce the capillary threshold pressure for foam...