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Full-Text Articles in Engineering
Characterization And Oil Recovery Enhancement By A Polymeric Nanogel Combined With Surfactant For Sandstone Reservoirs, Mustafa Mohammed Almahfood, Baojun Bai
Characterization And Oil Recovery Enhancement By A Polymeric Nanogel Combined With Surfactant For Sandstone Reservoirs, Mustafa Mohammed Almahfood, Baojun Bai
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil-water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was …
Enhanced Oil Recovery By Hydrophilic Silica Nanofluid: Experimental Evaluation Of The Impact Of Parameters And Mechanisms On Recovery Potential, Tariq A. Chandio, Muhammad A. Manan, Khalil R. Memon, Ghulam Abbas, Ghazanfer R. Abbasi
Enhanced Oil Recovery By Hydrophilic Silica Nanofluid: Experimental Evaluation Of The Impact Of Parameters And Mechanisms On Recovery Potential, Tariq A. Chandio, Muhammad A. Manan, Khalil R. Memon, Ghulam Abbas, Ghazanfer R. Abbasi
Research outputs 2014 to 2021
Nanofluids as an EOR technique are reported to enhance oil recoveries. Among all the nanomaterial silica with promising lab results, economic and environmental acceptability are an ideal material for future applications. Despite the potential to enhance recoveries, understanding the two-fold impact of parameters such as concentration, salinity, stability, injection rate, and irreproducibility of results has arisen ambiguities that have delayed field applications. This integrated study is conducted to ascertain two-fold impacts of concentration and salinity on recovery and stability and evaluates corresponding changes in the recovery mechanism with variance in the parameters. Initially, silica nanofluids’ recovery potential was evaluated by …
Physicochemical Characterisation Of Zirconia Nanoparticles Based Sodium Alginate Polymer Suspension For Enhanced Oil Recovery, Udit S. Mohanty, Faisal Ur Rahman Awan, Muhammad Ali, Adnan Aftab, Alireza Keshavarz, Sefan Iglauer
Physicochemical Characterisation Of Zirconia Nanoparticles Based Sodium Alginate Polymer Suspension For Enhanced Oil Recovery, Udit S. Mohanty, Faisal Ur Rahman Awan, Muhammad Ali, Adnan Aftab, Alireza Keshavarz, Sefan Iglauer
Research outputs 2014 to 2021
Biopolymers have been employed in enhanced oil recovery (EOR) due to their high viscosity and significant effects on waterflooding performance. Sodium alginate (NaAlg) is an excellent biopolymer that is extracted primarily from brown algae. It has been used in the biotechnology industry as a thickening agent, colloidal stabilizer, and oil recovery application. In the present study, a series of sodium alginate/zirconium oxide nanoparticle suspensions were prepared via solution mixing, and the effect of nanoparticle content, polymer concentration, temperature, salinity was investigated on the rheological behavior using a concentric cylinder dynamic rheometer. The rheology results revealed that the lower concentration of …
Enhanced Heavy Oil Recovery By Low Salinity Polymer Flood Combined With Microgel Treatment, Yang Zhao
Enhanced Heavy Oil Recovery By Low Salinity Polymer Flood Combined With Microgel Treatment, Yang Zhao
Doctoral Dissertations
“Heavy oil resources account for a large portion of the total oil reserves around the world. The target heavy oil reservoir is located on Alaska’s North Slope (ANS). Advantages of low-salinity HPAM polymer (LSP) over high-salinity polymer (HSP) were demonstrated. LSP could recover more oil with 40% less polymer consumption. No additional oil was recovered by HSP after LSP flood. The first-ever polymer flood pilot on ANS showed remarkable success regarding water cut reduction, oil production increase, delayed breakthrough, and projected oil recovery improvement. Polymer alone was insufficient to achieve satisfactory recovery as the reservoirs were highly heterogeneous. Microgels could …