... in lower-salinity brines with total dissolved solids (TDS) lower than 15,000 parts per million (ppm) interacted favorably with the fines in solution. At higher TDS conditions (greater than 30,000 ppm), the particles in the supernatant showed signs of ion-dipole interactions, as shown by increased...

... by Fourier Transform Infrared (FTIR) spectroscopy. SEM imaging was performed to characterize the microstructure and energy dispersive spectroscopy (EDS) was used to determine spatial mineralogy. Samples were then saturated with a 25,000 ppm KCl brine or KCl brine that had been exposed to source rock material...

..., including conductivity of hydraulic fractures. These reactions are largely dependent on the chemical compositions of the fluids and reservoir rock mineralogy. In this study, static batch reactor experiments are employed where rock powders are reacted with produced brine. The reactions are conducted...

... shale gas enhanced recovery geological subdiscipline salinity basin brine URTeC: 4044407 COMPLETION FLUID DESIGN FOR IMPROVING WETTABILITY Geoffrey Thyne*1, Cole Slupski2, 1. Engineered Salinity, 2. Nebraska Oil and Gas Conservation Commission. Copyright 2024, Unconventional Resources Technology...

... occur in the shale itself consisting of celestite (SrSO 4 ) and Fe(III)-(hydr)oxides. Celestite formation occurred in experiments that utilized treated produced water (clean brine) as base fluids, which introduced excess Sr 2+ in the system. These experiments suggest mineral precipitation in horizontal...

... the piston into the chamber. The saturating fluid used in our study is 3wt% KCl brine solution to reduce the impact of clay swelling. The core samples were subjected to a constant chamber pressure of 1000 psi and 1500 psi using the syringe pump-piston setup to saturate the core samples. We used NMR T 2...

... sedimentary rock clastic rock unconventional resource economics waterflooding rock type enhanced recovery recovery brine fluid dynamics geology equation of state shale gas mudstone enhanced oil recovery ift geologist pvt measurement mudrock flow in porous media energy...

..., production activities have shown lower-than-expected yields, despite the extraction of a substantial volume of condensate. This discrepancy is believed to be partly attributed to inadequate hydraulic fracturing designs, particularly those that neglect interactions among rock, formation brine, and stimulation...

... and partially brine saturated) and as a function of salinity at frequencies between 1 MHz and 250 MHz. The samples were measured dry and then allowed to imbibe brine until an equilibrium saturation was reached. The salinity was then changed by submerging the samples in brines of increasing salinity...

... energy economics upstream oil & gas complex reservoir shale gas formulation clastic rock rock type drilling fluid management & disposal synthetic brine spontaneous imbibition surfactant no-ionic surfactant nano sizer outcrop unconventional resource technology conference micelle nano...

... sequestration dissolution felipe cruz sidi mamoudou brine experiment alteration oxide exposure precipitation quartz deepak devegowda composition Abstract In efforts to reduce atmospheric carbon emissions, increasing attention has been focused on permanent and safe geological storage of CO 2...

... Abstract The utilization of Carbon Dioxide (CO 2 ) has been recognized as a viable technique for EOR and carbon storage applications, particularly in unconventional reservoirs such as the Bakken Formation. The chemical reactivity of the supercritical CO 2 -brine-minerals system is a crucial...

... through the center to create a smooth fracture and the second is fractured along the calcite-filled fracture to generate a rough fracture. The topography and mineral distribution of the fracture surface is analyzed before a reactive core-flood with an equilibrated acidic brine is conducted. The effluent...

... imbibition is the main mechanism by which fracture fluid enters the rock. Herein we study the spontaneous imbibition of brine to determine the flow mechanism and uptake capability of fracturing fluid in unconventional source rocks. We used NMR spectroscopy and imaging methods to track the spatial...

... fluids. To measure total tortuosity, a pair of companion plugs, from either Berea SS or the Wolfcamp, were hydrostatically pressurized to 100% saturation, separately with dodecane and 2.5wt% KCl brine (both fluids have NMR Hydrogen Index - HI of 1). Each saturated specimen was then imbibed with its...

... organic-shale since porosity is typically low. A new method is developed to estimate permeability through the combination of porosity measurements, tortuosity estimation and MICP pore-throat size measurements. Water-saturated cores are submerged in D 2 O (i.e. heavy water) brine and the decay in NMR...

... In this section, we discuss the details pertaining the sample preparation methodology, gas/ brine/ rock/ chemical systems, experimental setup and procedures used in this work. Rock and Fluid Characterization Reservoir core samples from Lower and Upper Eagle Ford gas window were used for core characterization...

... from the Marcellus formation represent different mineralogies and structural features. In flow-through experiments, lab-generated brine and HCl-based fracture fluid (pH=2) were injected sequentially under effective stress (up to 500 psi) at reservoir temperature (80°C). SEM-EDS results confirmed...

... produced water when it is reused for fracturing and EOR. In this paper, we treated sodium chloride (NaCl) solution using an electro-oxidation (EO) treatment process and evaluated how the treatment changes brine properties and how the wetting characteristics change with treated brine. The brine properties...

... fracturing treatments result in localized changes in fluid saturation near wellbores and fractures. enhanced recovery upstream oil & gas spontaneous imbibition test reservoir simulation brine flow in porous media fluid dynamics complex reservoir corey exponent relative permeability...