... with brine by keeping the sample in the CO 2 chamber under reservoir pressure and temperature for a certain amount of time. Usually this is between 30-90 days. Cores and effluent collected at the end of ageing days are analyzed to measure the changes on the key geochemical parameters (i.e., rock porosity...

... Step 3: Calculate total disjoining pressure (electrostatic force) based on the extended DLVO theory. Step 4: Investigate the optimized brine recipe which generates the maximum total disjoining pressure. Step 1: Surface Complexation Modeling Abstract This paper presents a workflow...

..., yet the interactions between hydrogen, brine, and cement, particularly with chemical additives, remain insufficiently understood. This study addresses this gap by investigating the effects of hydrogen and brine on the mineralogy and microstructure of cement with and without chemical additives. We...

... scale inhibitors for silicates. The experiment settings are simulating the environment in near wellbore region, such that higher temperatures and brine that is mostly pH neutral. The effectiveness of scale inhibitors is investigated through static bottle test and dynamic scale loop (DSL) test. The scale...

... coreflooding experiments. Several silica nanoparticles were fabricated for this purpose. The fabricated silica nanoparticles were modified, given the unfavorable formation brine salinity and ionic compositions affecting their stability. The resulting modified silica nanoparticles were diluted to 0.5 wt...

... the world have been demonstrated to contain significant quantities of lithium in their produced brines. In this work, we present a new AI optimization approach for the optimization of lithium recovery from reservoir operations while maintaining reservoir oil production targets. The approach is novel...

... Table 4 The pH and pE of surrounding brine in different cases. Before reaction After reaction Brine H 2 +brine CH 4 +brine CO 2 +brine pH 7 10.469 10.512 10.076 4.022 pE 4 -5.027 -12.505 -9.743 11.066 pH and pE are two important parameters...

... efficient way to assess in situ gel performance. production chemistry enhanced recovery evaluation polymer concentration oilfield chemistry concentration crosslinker concentration injection brine in-situ gelation property gel crosslinker reservoir in-situ gelation evaluation gel...

.... The roles of crude oil/brine/rock (COBR) interactions and resulting rock-surface charges were investigated as well. Both experimental and simulation components were treated as complementary to each other. Experimental components included: reservoir-condition high-pressure high-temperature (HPHT...

... formulation needs to be developed in a laboratory which depicts good thermal stability, compatibility with polymer or injection water, exhibits ultra-low interfacial properties (<10 −2 mN/m) with crude oil and injection water brine, lower surfactant adsorption and higher production of residual oil from...

..., and precise planning and design of an SSTT. Laboratory setup The schematic laboratory setup is shown in Fig. 1 . A core plug is placed inside the high-pressure coreholder, and high-precision QUIZIX pumps are used to inject oil and brine separately into it. The pressure drop in both phases...

... sand control concentration biopolymer batch upstream oil & gas formate brine test fluid stability test fluid system brine viscometer requirement shear rate liquid gel concentrate viscosity friction test proppant gal mgal breaker The Indian Peninsula has gas-rich...

... in East Malaysia as the potential CO 2 storage site. Interestingly, both fields are different, as X field is a high CO 2 green field, while N field is a depleted gas field. The research team’s initial hypothesis is that N Field would have more severe geochemical reaction between CO 2 , brine...

... of H2S on CO2 storage and understanding the science of contaminant separation and areas of improvement in methodologies will be presented and highlighted. climate change co2 mechanism air emission brine subsurface storage carbon dioxide operation aquifer injection co 2 application...

... system was done with direct displacement and reverse displacement methods. Due to the narrow fracturing window of 200-300 psi in all the wells, bottomhole pressures were managed by deploying multiple techniques such as using a lighter VES-based brine, optimizing the rheology of the fluid and taking...

.... In geothermal power plant in Indonesia, still many brines are still hot before reinjected to the reservoir. They are potential to utilize to increase energy efficiency using a binary power plant. So far, its utilization using conventional steam power plants is less than satisfactory. To increase...

... was designed and planned that uses a complete catenary CTU and a pumping and flowback package with a mobile storage support vessel. The returns system will enable liquid (brine and spacer) and gas returns with pressures of up to 5,000 psi. The mobile storage support vessel enables the returns to be stored...

... and alkaline flooding. Both methods are based on the establishment of alkaline conditions in the formation. Chemical interactions among the rock minerals, reservoir fluids, and injection brine can be reflected in the pH of the produced water. Thus, the scope of this work is to investigate the development...

... is triggered. As seen from (1) and (3) the same number moles of calcite, magnesite, Mg 2+ in the brine and Ca 2+ in the brine are added or withdrawn in the process. The reaction (1) is in equilibrium when r ˙ = 0 for any equilibrium composition ( C c a e q , C m g e...

... different conditions. A series of 2D axisymmetric numerical simulations were conducted to assess the potential of Proximity Sensing to monitor moving fronts of labeled brine as well as to detect isolated pockets of brine labeled with contrast agents. The study was conducted using layered models...