... play mudrock petroleum play type mudstone schechter imbibition experiment salinity alvarez clastic rock complex reservoir hpht enhanced recovery setup conference unconventional liquid reservoir proc spontaneous imbibition experiment novel high-pressure-high-temperature setup URTeC...

... conference composition nonionic surfactant salinity URTeC: 3831548 Surfactant EOR Improves Oil Recovery in a Depleted Eagle Ford Unconventional Well A Case Study I. Z. Ataceri*1, I. W. R. Saputra1, A. R. Bagareddy1, M. H. Elkady1, D. S. Schechter1, G. W. Haddix2, V. A. Brock2, K. H. Raney2, C. W...

... response at frequencies between 1 MHz and 300 MHz, the polarization of the double layer and the Maxwell-Wagner effect. Both are a function of pore fluid salinity. This study documents the influence of clay content and salinity on the dielectric constant of source rocks. The dielectric properties for a set...

... concentration pipe section incident salinity incident ii health & medicine hydrate inhibition riser corrosion asphaltene inhibition water chemistry composition reaction bacteria interaction qxrd unconventional well deposit produced water dissolution URTeC: 3712272 Impact of Subsurface...

... Abstract Many previous studies have highlighted the effect of injected fluid salinity on recovery performance and flowback analysis in tight reservoirs. However, the complex interactions between the oil, original formation water, fracturing fluid, and rocks make capturing all the relevant...

... bear water not only fresh, but also brackish and saline. From base to top is composed of Paleogene units, that have been intensively characterized since many of these are part of the petroleum system of the basin. However, Neogene and Quaternary units are also present but have not been studied...

...-fluid composition (salinity and ion concentration) that transforms the formation wettability into a more water-wet state. Oil wetting of tight formations is usually controlled by the adhesion of oil droplets on the surface of clay minerals. When clay minerals are not predominant, the oil attached...

...URTeC: 5679 Determination of Pore Fluid Salinity in Tight Rocks Without Fluid Extraction Judah Odiachi*, Ali Tinni, Carl H. Sondergeld, Chandra S. Rai, The University of Oklahoma Copyright 2021, Unconventional Resources Technology Conference (URTeC) DOI 10.15530/urtec-2021-5679 This paper...

... of the T1 and T2 oil signal before any possible alteration of the rock wettability resulting from cleaning. Using the measured clay-bound water (VCBW) from the NMR, a dual water CRIM dielectric inversion water volume model was developed that compensates for the difference between the salinities...

...-wet, while it is a resistant force if in-situ matrix is oil-wet (in reality, the matrix in unconventional reservoirs is usually mixed-wet) (Pan et al. 2019, 2020); 3) is a driving force for fracturing fluid loss if in-situ formation brine salinity is larger than injected fracturing fluid salinity...

... that describes the dispersive losses caused by the migration of a charge buildup in the presence of the applied low-frequency electromagnetic field. The charge buildup is created in a layer between the graphite particle and saline connate water and occurs because of the discontinuity of the potential between...

... Abstract Although hydraulic fracture fluid is typically fresh water, in shale gas reservoirs, produced water or flowback, is often very saline. This observation suggests that flow back water is gaining salt from the formation. It is not currently known whether the recovered salt comes from...

... reservoir fluid and rock surface are also simulated. The Langmuir isothermal equation is applied to calculate the salinity on surfactant adsorption; the Pseudo Dilation Model is applied to simulate formation expansion and compression, and the Barton-Brandis Model is applied to describe the closure...

.... Formation water salinity is one of the most important inputs in the calculation of fluid saturations. During early-stage exploration, formation water salinity in the target reservoir is typically unknown, which brings large uncertainty to resulting petrophysical evaluations. In such cases, fluid inclusions...

... recovery shale gas upstream oil & gas cec salinity determination formation water laboratory method rock sample shale reservoir rock reservoir rock Abstract The research goal is the development of a novel integrated solution of formation water content and salinity determination...

... enhanced recovery complex reservoir fluid modeling equation of state hydraulic fracturing chemistry upstream oil & gas water molecule ionic aggregate nanopore water bridge reservoir simulation low salinity salinity electric field drilling fluids and materials surface...

... respectively that represent different surface chemistries. It is important to note that P-H pore systems are most common. Because pore size, salinity and water concentration are expected to control the self-diffusion coefficients of the solvent-oil mixture and water, our MD simulations of transport in illite...

... Abstract The amount of trapped oil in hydrocarbon rich shale reservoirs recoverable through Enhanced Oil Recovery methods such as low salinity water flooding has been an ongoing investigation in the oil and gas industry. Reservoir shales typically have relatively lower amounts of swelling...

... water and not water associated with hydraulic fracturing or well completions. This conclusion is based on the observation that the Wolfcamp shale formation water has an oxygen isotopic composition of ~6.5 ± 0.5 (SMOW) and a salinity of ~23 kppm. These oxygen isotopic data and salinities are consistent...

... and carbon dioxide. Aqueous stability, salinity scan, and static foam tests were performed to identify a formulation. Subsequent foam quality and coreflood displacement tests in heterogeneous carbonate outcrop cores were conducted to compare the recovery efficiencies of three processes: a) gravity unstable...