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Keywords: variation
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Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5001
... analysis reservoir characterization structural geology variation evaluation upstream oil & gas july 29 mullin formation testing asphaltene gradient asphaltene content artificial intelligence symposium downhole fluid analysis connectivity june 24 engineering zone ms300 spwla 61...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5071
... for enhancing rock texture detection, classification, and formation evaluation. Acquisition of CT-scan data is accomplished shortly after core retrieval, providing high-resolution data for immediate use in petrophysical workflows. However, these 2D images cannot capture 3D variation of rock texture...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5031
... equilibrated asphaltenes with a lateral variation of 20%. This indicates connectivity in the large portion of the reservoir, which is confirmed by three years of production data from the field. There are two outliers off the asphaltene equilibrium curve implying isolated sections: one is located on the extreme...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5077
... nearwellbore region where tectonic stress redistribution causes pronounced azimuthal slowness variation. This stress-induced slowness variation is important because it is also a key driver of wellbore geomechanics. Moreover, in the presence of highly laminated formations there can be a significant azimuthal...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5102
... matrix electrofacies analysis june 24 correlation sandstone spwla 61 rock data image log upstream oil & gas variation july 29 acoustic image log electrofacies model facies depth calibration symposium electrofacies university SPWLA 61st Annual Logging Symposium, June 24 to July 29...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-F
... work in carbonates of the Tal block has investigated how heterogeneity can be defined and how we can quantify this term by describing a range of statistical heterogeneity measures (e.g., Lorenz and Dykstra-Parsons coefficients). These measures can be used to interpret variation in wireline log data...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-R
... laboratory water saturation porosity complex reservoir variation sidewall core sample preparation Symposium total gas adsorbed gas pore size distribution protocol spwla 60 correction free gas SPWLA 60th Annual Logging Symposium, June 17-19, 2019 DOI: 10.30632/T60ALS-2019_R 1 MORE ACCURATE...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-WW
... account mineral volumetric compositional variation, carbonate grain-size variation, and kerogen content. Before completing the study well, a cased hole logging suite was run, and the facies were identified along the lateral. Permanent fiber optic cable was installed on the backside of the casing to...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-XX
... ABSTRACT Severe biodegradation of crude oil is widely known to increase viscosity quite significantly. Water washing is known contribute to this increase under some circumstances. What has been less understood is the spatial variation of viscosity in reservoirs that is caused by biodegradation...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-LL
... sands, heterogeneous carbonates and reservoirs with variable hydrocarbon viscosity in many fields of the region. Fractionalized porosity obtained by NMR logs can discern bound fluids and free fluids, reveal otherwise hidden pore size variations and determine hydrocarbon composition and viscosity with...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-BBBB
... of uncertainties inherent within the models, the sensitivity of different parameters and the underlying assumptions about the physical system made within each model. We present a detailed evaluation of six contrasting petrophysical models with variations in model outputs for gas in place assessed...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-TTTT
... translated to single-layer casing thicknesses after correcting for variations in the material's EM properties. In addition, within each quadrant, two axially spaced receiving antennas provide a differential measurement to enhance the axial resolution for small defects on the casing wall. Meanwhile, an EM...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-YY
... refine stratigraphic models, explain petrophysical responses, and guide selection of plug locations for conventional and special core analysis. Digital HI-derived single mineral curves calibrated to X-Ray Diffraction Data (XRD) were imported as curves to display mineralogical variations with depth...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-OOOO
... ABSTRACT The architectural complexities of carbonates present a challenge for reservoir modeling due to chemical alterations and biological variations. In the absence of core, conventional logs provide limited information about the depositional environment. In contrast, image data combined...
Proceedings Papers

Paper presented at the SPWLA 57th Annual Logging Symposium, June 25–29, 2016
Paper Number: SPWLA-2016-CCC
... application as a simple three phase time lapse pulsed neutron problem. The end point values of various nuclear attributes will change with the fluids composition during production of the WAG cycles. Changes in water salinity, oil density, gas composition, pressure variation and deviation from compositional...
Proceedings Papers

Paper presented at the SPWLA 57th Annual Logging Symposium, June 25–29, 2016
Paper Number: SPWLA-2016-A
..., variation in rock texture, and the presence of immovable hydrocarbons can represent a formidable petrophysical evaluation challenge. Even at depths where the presence of hydrocarbon is established, formation testing in some cases results in either tight (low-mobility) tests or flows water during sampling...
Proceedings Papers

Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-LLL
... CVG molecule GR value variation solubility vapor pressure reservoir hydrocarbon GAPI Steam flood Gamma SPWLA 56th Annual Logging Symposium, July 18-22, 2015 IN SITU EVALUATION OF VAPOR PROPERTIES USING CONDENSED VAPOR GAMMA Terence P. O Sullivan Aera Energy LLC, Bakersfield, CA 93311...
Proceedings Papers

Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-OO
... commonly used indicator of reservoir connectivity; understanding these gradients is important. The variations of different crude oil components measured today are a function of charge history. In addition, these variations are a function of in-reservoir fluid processes that, in some cases, can cause fluid...
Proceedings Papers

Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-HH
... Abstract Nuclear Magnetic Resonance (NMR) responds to variations in petrophysical properties of hydrocarbon-bearing formations by logging information about the pore space and the fluids contained therein. Two new approaches have been developed for evaluating NMR data in chalk. One approach is...
Proceedings Papers

Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-Q
... dielectric measurement Imaging permittivity conductivity lithofacies porosity polarization dispersion Brine variation plug Symposium permeability correlation spwla 56 carbonate carbonate reservoir SPWLA 56th Annual Logging Symposium, July 18-22, 2015 1 DIELECTRIC RESPONSES OF CARBONATES...

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