... of H 2 /H 2 S/water and CH 4 /H 2 S/water systems were determined as a function of gas concentration at 298 K and under different pressures. The results show that gas-water IFT with different H 2 S concentrations decreased as pressure increased from 10 to 14.5 MPa. For pressures higher than 14.5 MPa...

... production concentration erosion risk operator scenario sand deposition automated sand deposition correlation equation field measurement sand concentration Introduction Pipeline erosion is a major issue faced by operators from upstream industries. It weakens the structural integrity...

... gas processing plants facing similar conditions and problems. production chemistry corrosion inhibition gas injection method enhanced recovery h2s management co 2 concentration donggi matindok field pertamina ep cepu absorption process amine solvent reaction corrosion management...

... at lower concentrations. The impact of shear slip on flow conductivity is discernible only in rock samples with higher roughness. Furthermore, the evolution of infilled-shear fracture conductivity with increasing proppant concentration follows a biphasic pattern: an initial decrease followed by an increase...

... the influence of sand particle size distribution characteristics on solid-liquid two-phase flow, a horizontal wellbore sand concentration prediction model was established based on single factor analysis method and Buckingham's theorem. The influence of different flow conditions on the sand concentration...

... size distribution gradation distribution index densest accumulation particle system circulation fuller curve formulation friction lcm particle packing concentration larger particle Introduction Lost circulation is a common issue across various oil and gas producing regions...

... bubble column reactor conversion air emission geochemistry reactor pyrolysis geochemical characterization carbon catalyst reaction temperature liquid catalyst height residence time solid carbon decomposition rate methane pyrolysis concentration flow rate carbon sample liquid height...

... concentration injection permeability migration formation damage mechanism permeability damage water evaporation Background Geological CO 2 storage is one of the main means of carbon dioxide sequestration to prevent and avoid further climate changes. The main reservoirs to store CO 2 are deep...

... to compare the effects of carbonated water and CO 2 nanobubbles on CO 2 storage. Analytical instruments were employed to analyze the rock surface morphology, mineral composition, and ion concentration in the reaction solution post-experiment, revealing the mechanism by which CO 2 nanobubbles accelerate...

... geology hydraulic fracturing drilling fluid selection and formulation sedimentary rock drilling fluid formulation drilling fluids and materials acid granular salt perforation interval acid penetration diversion diverter self-diverting acid granular salt diverter concentration effectiveness...

... steam generator hrsg social responsibility emission efficiency concentration heating value heat recovery steam generator thermal decarbonization abatement plan valve convection section operation energy efficiency "A" FACILITY DESCRIPTION "A" West and East fields are located...

... additives, cracks connected existing pores, forming larger void networks. However, the generation and propagation of micro-fractures are more likely due to the changes of temperature and pressure during the samples loading rather than the impact of H 2 . Ion concentrations, including Na + , K + , Ca 2...

... concentration rock sample oil recovery performance rock type interface brine brine composition seawater crude oil Introduction The studied oil field is located offshore in a high-temperature (100°C) and high-salinity (over 200,000 mg/L) carbonate reservoir. Due to the harsh reservoir conditions...

... migration formation damage saturation permeability reservoir simulation enhanced recovery particle detachment concentration fractional flow formation damage factor calculation relative permeability critical retention function capillary force impedance heterogeneous model Introduction...

... both the storage capacity and containment safety. This study focuses on using two chemicals, methyl orange (MO) and methylene blue (MB), as wetting agents at different concentrations (10 to 100 mg/L) to change rock wettability and improve the storage capacity of CO 2 and H 2 . To achieve...

... morphology, including round (under-erosion, 10%), droplets (normal-erosion, 52%), near-droplets (over-erosion, 25%) and irregularity (abnormal-erosion,13%). Due to the influence of the proppant concentration profile, perforations located near the downside of the horizontal wellbore suffered more severe...

...-to-produced water ratios and adjusting the reaction time for each condition to mimic real-life scenarios. A wide range of NaOH concentrations from 0-550 ppm was introduced in the experimentation process. The efficiency of arsenic removal was assessed by comparing the arsenic levels in samples before and after...

... and Flow Test to determine optimal chemical concentration. The fifth stage, Core Flooding, assessed return permeability and critical velocity, providing conclusive evidence of the chemical treatment's effectiveness on sand agglomeration. In this study, we utilized a sample from Field B, with particle sizes...

... In addition to previously assessed oil and solids removal requirements and based on present water characteristics, it was considered essential to also remove divalent cations from the injection water down to a total concentration of 5 mg/l prior to adding any alkaline components to prevent issues...

... time of different DFR samples. An optimum DFR candidate was able to totally dissolve in synthetic brine in less than 2 minutes. The friction reduction can reach up to 75% in 2 minutes for the DFR solutions, and even at a concentration as low as one pound per thousand gallons (pptg). With the addition...