... or microorganism activity. As gas mixture composition can affect the interfacial tension (IFT) between gas and residual pore water, the dynamics and fate of injected H 2 in the depleted gas reservoir may, in part, be determined by H 2 S effects under reservoir conditions. In this study, the interfacial tensions...

... into two parts. The fisrt part is to identify optimum concentration of hybrid nano-acid fluids by conducting IFT measurements. The second part is to verify the combined effect of hybrid nano-acid fluids with electrokinetics and relative contribution of acid, nanoparticles, and electrokinetics by conducting...

..., it is imperative to find new flooding agents that tackle such problems. In this study, a novel ultra-low interfacial tension (IFT) nanofluid was formulated, consisting of surfactants to achieve ultra-low IFT and silica nanoparticles to reduce injection pressure. The compatibility test between the surfactants...

... (Jabbar, et al. 2017). Surfactant is one of the chemicals that has played an important role in EOR through the reduction of oil/water interfacial tension (IFT), emulsifying crude oil and altering the wettability of oil layer and thus produce residual oil (Sheng 2015). Chemical Enhanced Oil Recovery...

... Abstract CO 2 injection has been used for decades in the petroleum industry as a successful tertiary recovery method. The main impact of CO 2 on the reservoir is interfacial tension (IFT) reduction between the crude oil and CO 2 which leads to better sweep. Decrease in the temperature can...

... tension (IFT) formulations tests, including petroleum sulfonate PS-1 and PS-2, alkylbezene sulfonate HABS-1 and HABS-2, sodium alkane sulfonate AS, anionic-nonionic surfactant ALFOTERRA33, SPS1708, sodium olefin sulfonate AOS, nonionic surfactant of fatty acid diethanol amide 6501 and alkyl ether...

... is approximately 1 USD/kg in Japan. We semi-quantitatively estimated the interfacial tension (IFT) between the fertilizer solution and crude oil by the oil displacement test. Concentration of the fertilizer was varied between 10 to 50 g/L. The fertilizer solution to which sodium chloride was added...

... of ASP flooding technique. In this research, the preparation, interfacial tension (IFT) properties and oil displacement experiments of synthesized alkylbenzene sulfonate surfactants were mainly studied in weak alkaline ASP flooding, in order to better understand the relationship between IFT performance...

... Abstract In order to screen various chemical and microbial EOR methods for core-flooding experiments and potential field trials, a laboratory investigation of evaluating the effect of micro-emulsion on the reduction of interfacial tension (IFT) was recently carried out at CSIRO by using...

... recovery indicates the efficiency of the optimum triglyceride microemulsion formulation. enhanced recovery concentration composition surfactant chemical flooding methods ift sand pack microemulsion flooding microemulsion formulation tertiary oil recovery cumulative tertiary oil recovery...

... Table 1 Type of Test Run In the Field Study Test Type Zones Number of Tests FBU and IFT FBU only IFT, FBU & SRT 33 6 19 66 6 19 Total 91 Table 2 Permeability Comparison Example FBU IFT Difference Ratio Reference (mD) (mD) (%) Zone...

... enhanced recovery reservoir crude oil ift composition Introduction The wettability of porous media has been shown by a number of investigators to affect rock-fluid properties such as the capillary pressure and the relative permeabilities, and thus plays a big factor in determining...

... the value of S gc for different rock types under the reservoir conditions and for the reservoir fluid under consideration. An extensive literature survey 1 revealed that values as low as 0.6% and as high as 21% of pore volume were reported. The fluid properties, especially IFT between gas and oil...