... permittivity measurement (i.e., dielectric constant and conductivity) is dominated by the volume and salinity of brine in the pore space, whereas at lower frequencies the measurements are increasingly sensitive to how the water is distributed within the porous rock, i.e., the rock texture. In wet shale...

... porosity geochemical characterization pyrobitumen kuwait core analysis bitumen annual logging symposium brine unconventional play petroleum play type geochemistry geological subdiscipline permeability university spwla 66th plug secondary organic matter and hydrocarbon frequency...

..., enhancing CCS monitoring and strategy optimization. In this experimental investigation, Berea sandstone samples were exposed to CO 2 -saturated brine under reservoir conditions (1500 psi and 150°F) for 30 and 90 days. These controlled laboratory experiments, while short relative to geological timescales...

... ABSTRACT Saline aquifers are often preferred candidates for carbon dioxide (CO 2 ) sequestration, as they have large storage capacities and are more commonly available than other types of reservoir, such as hydrocarbon reservoirs. However, as CO 2 dissolves in formation brine, a lower pH...

... along the well profile to map, in real-time, the thermal behavior during three key phases: before injection begins, during the initial regime when carbon dioxide (CO2) displaces the brine in the tubing and fills the borehole, and at full stable operation. The proposed physics-based methodology provides...

... part contains the core sample sitting in the saturating fluid isolated from the upper part, where the injection fluid from the syringe pump pushes the piston into the chamber. The saturating fluid used in this work is 3wt% KCl brine solution to reduce the impact of clay swelling during the saturation...

..., by using both carbonate and clastic rock samples. Testing fluids include brines with different salinities and two crude oils with different characteristics in terms of resins and asphaltenes. Solvents used for core cleaning included toluene, xylene, and methanol. Core cleaning methods tested...

... geological subdiscipline spwla-2024-0007 geologist petroleum geology reservoir characterization equation abdallah journal brine engineering saudi arabia measurement drp klemin equilibrium modeling SPWLA 65th Annual Logging Symposium, May 18-22, 2024 DOI: 10.30632/SPWLA-2024-0007 INSIGHTS...

... ABSTRACT Ionic properties and concentration significantly influence the response of brine-saturated rock samples to electromagnetic disturbance. However, the dielectric permittivity response of rock samples under different ionic conditions is poorly described. This significantly limits...

...), passing through the transition zone (MAC-3) defined between x112 and x157 m according to the first petrophysical evaluation. Additionally, sampled formation fluids were sent for testing: oil, drilling fluid filtrate and a brine prepared with a composition equivalent to that of the formation. salt...

...) can be ∼1 scf/stb for formation water in an oil reservoir, and ∼ 5-6 scf/stb for a deep saline aquifer. Therefore, it is essential to quantify the effect of brine salinity on CO 2 solubility in "live" saline waters. Just as live oil is reservoir oil containing solution gas, "live" brine is defined...

... interaction among rock matrix, brine, and (impure) CO 2 streams. Most logging, sampling, and laboratory techniques are adapted from established domains such as enhanced oil recovery, underground gas storage, and unconventional reservoir evaluation, though some CCS-specific innovation is also needed. Storage...

... in conductivity terms; in that sense there was no change in thinking. The first rethinking of the problem appeared in 1993 by positing three first principles: bulk rock conductivity is proportional to (1) brine conductivity; (2) fractional volume of brine in the rock; (3) a geometrical factor. Brine conductivity...

... effectiveness imbibition porosity reservoir characterization well logging brine tribution spwla 63 core analysis rd annual logging symposium permeability complex reservoir drainage cycle ii ken sample surface cleanliness spontaneous imbibition spontaneous drainage cleaning cleanliness...

... distribution on illite surface. We found that citric acid tends to forms aggregates and that some cations present in the solution, specially sodium, participate in these citric acid aggregates. When methanol or citric acid are added to the brine solution we observed that mobility of both sodium and water...

... that can be injected in the formation through the mud cake. The brine circulation operation is run at the end of the drilling phase, after reaching TD of the drain while maintaining a constant wellhead pressure at the wellhead. The constant pressure control can be applied without a specific additional...

... correlation maps and the T 1 / T 2 ratio can be a powerful technique for fluid typing and saturation. One limitation is that these techniques often just compare fully hydrocarbon-saturated with fully brine-saturated cores to calibrate a set of cutoffs in T 1 , T 2 , and/or T 1 / T 2 ratio...

... strategies) on wettability alteration. Additionally, this NWI study quantifies the wide variation in wettability among unconventional samples. enhanced recovery spwla 62 experiment brine saturated imbibing decane upstream oil & gas pore right panel decane spectra fluid dynamics brine...

...) data and includes 10 samples at 32 °F; would these low-salinity, low-temperature samples unduly bias estimates at temperatures and salinities more representative of oil-field brines? Answering these questions leads to a collection of possibly more appropriate values for T 0 . A final question...

... developed a solution for the polarization response of spheroidal conductive grains immersed in brine which accounts not only for the geometric and conductive effects of the grain independently, but also for the interplay between them. Based on this solution, we construct an effective medium model...