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Keywords: salinity
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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4044407-MS
... Abstract Injected water salinity is usually a function of cost and availability and only evaluated to avoid formation damage rather than designed to increase recovery. In this paper we present experimental results for the alteration of wettability by water salinity from the Wolfcamp...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4045619-MS
...- and temperature gradients. drillstem/well testing reservoir surveillance calculation reservoir simulation production monitoring gradient modeling & simulation production control variation drillstem testing correlation salinity industry consortium insight benchmarking bottomhole pressure...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4037224-MS
... with partial 2-acrylamido tert-butylsulfonic acid (ATBS) substitution Testing was performed in multiple water qualities with varying salinities and pH levels. The study revealed that particle bridging of fines by cationic polymers to the proppant pack is more strongly affected by the salinity than anionic...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4033482-MS
... understanding of CO 2 solubility under deep saline aquifers. However, sparse studies have delved into the real reservoir brine, consisting of complex salt ions. Also, few works have been done focusing on CO 2 geo-sequestration applications. In this work, we develop a practical and robust CO 2 solubility...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 13–15, 2023
Paper Number: URTEC-3854429-MS
... 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 of shale samples from various reservoirs were measured as a function of saturation (vacuum dried...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 13–15, 2023
Paper Number: URTEC-3831548-MS
.... 2018; Saputra and Schechter 2021b; Chen and Schechter 2021). Additional studies (Gupta and Mohanty 2010; Park and Schechter 2020; Saputra and Schechter 2021a) have highlighted how changes in salinity and temperature impact the wettability and IFT of surfactant systems. Surfactants can be classified...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 13–15, 2023
Paper Number: URTEC-3871298-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3723608-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3712272-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3721536-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5139-MS
...-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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5008-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5697-MS
...-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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5679-MS
... Abstract Pore fluid salinity plays an important role during hydrocarbon reserves estimations from electrical resistivity logs and rock fluid interaction studies. Classical methods used to measure pore fluid salinity involve laboratory analysis of brine produced during hydrocarbon production...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5149-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2959-MS
... Abstract The research goal is the development of a novel integrated solution of formation water content and salinity determination for petrophysical characterization. The workflow relies on three techniques: evaporation method (EM) with isotopic composition analysis, analysis of water extracts...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2909-MS
... distributions and their impact on transport through clay-pores when exposed to fluids of varying salinity. In this work, we use a molecular dynamics approach to characterize fluid distributions when oil and water are present in clay-hosted pores and to finally provide guidelines for optimal salinities in our...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2911-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3234-MS
... 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...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3329-MS
... 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...

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