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Keywords: concentration
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Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0044
..., each trying to correct its predecessor. After triple combo logs are predicted from MWD logs, a physics-based joint inversion model is applied to estimate reservoir properties such as total porosity, clay volume, water saturation, volumetric concentrations of lithology, permeability, rock type...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0024
... a first look of the PVT on zones of interest. EEC METHODOLOGY = [3.81 12345 2) (1) The EEC method used in this paper was initially tested against a steam still unit as a control. A steam still method is a non-continuous measurement with accuracy The concentration and ratio of the extracted gasses obtained...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0067
... lamination volume, and dispersed clay concentration, Nuclear logs respond to lithology; therefore, they are the primary well logs used for our inversion-based interpretation method. We show the results can be further improved if well logs sensitive to anisotropy, e.g., triaxial induction, are also added...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0042
...-filtrate invasion spwla-2023-0042 concentration spwla 64 austin drilling fluid property sandstone reservoir characterization permeability resistivity texas engineering operation SPWLA 64th Annual Logging Symposium, June 10-14, 2023 DOI: 10.30632/SPWLA-2023-0042 USING FORMATION-TESTER...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0091
..., CaCl2, and their mixtures at varied concentrations. The oil components investigated in this work include, decane, decanoic acid and sodium decanoate. Initially, we set up systems composed of different ion composition and salinity to investigate the effect of these parameters on EDL structure and water...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0066
... basins. Magnesium clays, having high magnesium contents and low potassium and aluminum concentrations in chemical compositions, lack characteristic features in well log responses, such as GR, which make petrophysical models less effective to accurately interpret reservoir rock and fluid properties...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0039
... in reduced or negligible concentrations of the C4 and C5 fractions. As a consequence, its use is limited to the C1 to C3 components, which are more efficiently released from the mud due to their higher fugacity. Furthermore, the C1 to C3 components may require correction to ensure comparability with the PVT...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0120
... ABSTRACT Pulsed neutron sources offer a unique advantage over traditional radioactive sources in well logging tools by emitting high-energy neutrons and being controllable. By detecting neutron-induced gamma rays, a variety of formation properties, including elemental concentrations derived...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0126
... elemental spectroscopy logging tools are used. Such tools provide a set of elemental concentrations in the formation, which can be transformed into sets of minerals using different models. Some models are based on correlations, such as spectroscopy lithology processing (Herron and Herron, 1996), while more...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0005
... temperature on adsorption (iii) investigate the structure of the EDL onclay surface as a function of electrolyte concentration and pore size and calculate diffusion coefficients. Grand Canonical Monte Carlo (GCMC) simulations are performed to calculate water adsorption. These simulations are performed...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0008
... in the energy transition. However, a highly reliable and sensitive hydrogen sensor is required during exploration, production, and transportation of natural H 2 , i.e., for concentration quantification and leakage monitoring. The main incentive for the proposed workflow being presented is to create and provide...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0073
... of the rock can be influenced by the presence of clay, pyrite, and thermally mature organic matter. In this paper, we investigate the impacts of conductivity, volumetric concentrations, and spatial distribution/connectivity of clay, pyrite, and kerogen networks on the effective conductivity of the rock...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0069
..., and elemental concentrations, which matched well with the conventional core analysis and XRF data. Overall, the uncertainties estimated from the workflow were very low, establishing further the robustness and reliability of the results. While it is desired to have all the necessary measurements to address...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0075
..., uranium and potassium element concentrations in different directions, the LWD azimuthal natural gamma ray spectrometry technology is helpful in evaluating reservoir geological characteristics and real-time drilling geosteering. Elemental imaging is one key breakthrough of this technology to make more...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0104
... and core measurements for rock classification. First, we conducted joint inversion of well logs to estimate volumetric concentration of minerals and total porosity. Then, we characterized the pore structure of the evaluated intervals fitting a multimodal Gaussian model to the available nuclear magnetic...
Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0103
..., multidimensional, nonlinear relationships among the concentrations of measurable elements in geological rock formations. Each matrix property is quantified with a separate model. We consider grain density, neutron porosity, cross sections for thermal neutron absorption (Sigma) and fast-neutron elastic scattering...

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